Troy Bilt Lawn Mower 52057 User Guide

$4.50  
OWNERS MANUAL  
Trimmer/Mower  
Safety  
Assembly  
Features/Controls  
Operation  
Maintenance  
Parts List  
Models  
52057 – 5HP Recoil Start  
52058 – 6HP Electric Start  
(Electric Start Model Shown)  
GARDEN WAY INCORPORATED  
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Section  
Safety  
1
SPARK ARRESTER WARNING TO RESIDENTS OF CALIFORNIA AND SEVERAL OTHER STATES  
Under California law, and under the laws of several other states, you are not permitted to operate an  
internal combustion engine using hydrocarbon fuels on any forest covered, brush covered, or grass  
covered land, or on land covered with grain, hay, or other flammable agricultural crop, without an en-  
gine spark arrestor in continuous effective working order.  
The engine on your power equipment, like most outdoor power equipment, is an internal combustion engine that burns  
gasoline, a hydrocarbon fuel. Therefore, your power equipment must be equipped with a spark arrestor muffler in continu-  
ous effective working order. The spark arrester must be attached to the engine exhaust system in such a manner that flames  
or heat from the system will not ignite flammable material. Failure of the owner/operator of the equipment to comply with  
this regulation is a misdemeanor under California law, and may also be a violation of other state and/or federal regulations,  
laws, ordinances, or codes. Contact your local fire marshal or forest service for specific information about what regulations  
apply in your area.  
IMPORTANT  
Safe Operation Practices for Walk-Behind Mowers  
This cutting machine is capable of amputating hands and feet and throwing objects. Failure to observe the  
following safety instructions could result in serious injury or death.  
13. Stop engine and discon-  
nect spark plug wire from  
spark plug whenever you  
leave the unit, clean  
the equipment, or  
replace trimmer line.  
Remove key on electric start model.  
General Operation  
1. Read, understand, and follow all  
instructions on the machine and in the  
manuals. Be thoroughly familiar with  
the controls and the proper use of the  
equipment before starting.  
6. Do not operate the machine when  
barefoot or wearing open sandals.  
Always wear substantial footwear.  
2. Do not put  
14. Wait until the trimmer head comes  
to a complete stop, shut the engine off,  
and disconnect the spark plug wire  
before installing or removing trimmer  
line. Be sure trimmer head is securely  
attached before operating equipment.  
hands or feet near or  
under rotating parts.  
Keep clear of the ro-  
tating trimmer head  
and line at all times.  
7. Wear appropriate clothing such as  
a long-sleeved shirt or jacket. Also  
wear long trousers or slacks. Do not  
wear shorts.  
8. Do not wear loose clothing– it  
could catch in the equipment.  
3. Only allow responsible adults,  
who are familiar with the instructions,  
to operate the trimmer/mower. Never  
let children or untrained adults oper-  
ate this equipment.  
15. Mow only during daylight hours or  
when good artificial light is available.  
9. Do not mow in reverse unless  
absolutely necessary. Always look  
down and behind before and while  
moving backwards.  
16. Do not operate the machine while  
under the influence of alcohol or drugs,  
or when tired or ill.  
4. Inspect the area where the ma-  
chine is to be used. The machine can  
propel small objects at high speed,  
causing personal injury or property  
damage. Clear the area of objects  
such as rocks, toys, wire, bones,  
sticks, etc., which could be picked up  
and thrown by the trimmer line.  
10. Do not operate the trimmer/mower  
without proper guards, plates, or other  
protective safety devices in place.  
17. Never operate this equipment in  
wet grass. Be sure of your footing; keep  
a firm hold on the handlebar and walk;  
never run.  
11. Refer to provided instructions for  
proper operation and installation of ac-  
cessories. Only use factory-approved  
accessories.  
18. Release the Trimmer Head Control  
Bail before starting the engine.  
19. If the unit starts to vibrate abnor-  
mally, stop the engine and disconnect  
the spark plug wire. Check immedi-  
ately for the cause. Vibration is gener-  
ally a warning of trouble.  
5. Be sure the area is clear of other  
people (particularly small children and  
pets) before mowing. Stop machine if  
anyone enters the area. Keep by-  
standers at least 50 feet from the area  
of operation.  
12. Stop trimmer head when crossing  
gravel drives, walks, or roads. Wait for  
trimmer lines to stop.  
1
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Section 1: Safety  
20. Always wear approved safety gog-  
gles or safety glasses with side shields  
when operating equipment. The use of  
any powered machine can result in for-  
eign objects being thrown by high-  
speed rotating parts which can cause  
personal injury or property damage.  
Stay away from glass and other easily  
thrown or breakable objects.  
1. Keep children out of the mowing  
area and under the watchful care of a  
responsible adult.  
They should never be in an awkward  
position for the operator.  
2. Be alert and turn machine off if chil-  
dren enter the area.  
Slope Operation  
Slopes are a major factor related to  
loss of control and tip-over accidents  
which can result in severe injury or  
death. All slopes require extra caution.  
If you can not back up the slope or you  
feel uneasy on a slope, do not mow it.  
3. Before and while moving back-  
wards, look behind and down for small  
children.  
4. Never allow children to operate the  
machine.  
21. Wear work gloves and sturdy  
footwear when using this equipment.  
Leather work shoes or short boots are  
ideal. They protect ankles and shins  
from rocks, pebbles, splinters, etc.  
5. Use extra care near blind corners,  
shrubs, trees, or other objects that  
may obscure vision.  
DO:  
Mow across the face of slopes; never  
up and down. Exercise extreme cau-  
tion when changing direction on  
slopes. Avoid slopes greater than  
15o.  
6. Never carry children, even with the  
trimmer head stopped. Children may  
fall off and be seriously injured or in-  
terfere with safe machine operation.  
22. It is advisable to wear protective  
headgear to prevent the possibility of  
being hit by small flying particles, etc.  
23. Before each use, inspect the Throt-  
tle Control Lever and cable. Make sure  
the cable is free and the lever functions  
properly.  
Remove objects such as rocks, tree  
limbs, etc.  
7. Do not allow children nearby if you  
are working.  
Uneven terrain could overturn the  
machine. Watch for holes, ruts, or  
bumps. Tall grass can hide obstacles.  
24. Watch for traffic when near or  
when crossing roadways.  
Service  
1. Use extra care in handling gasoline  
and other fuels. They are flammable  
and their vapors are explosive. To  
help prevent a fire or explosion:  
Use slow speed.  
25. Never attempt to carry children or  
other passengers on the equipment.  
They could fall off and be seriously in-  
jured, or they could interfere with safe  
operation of the equipment.  
Use extra care with grass catchers or  
other attachments. These can  
change the stability of the machine.  
Keep all movement on the slopes  
slow and gradual.  
a) Use only an approved container.  
b) Never remove gas cap or add  
fuel when the engine is running.  
Let engine cool before refueling.  
Do not smoke.  
26. The machine is equipped with a  
plastic debris shield in front of the  
engine and a rubber debris flap under  
the frame. They must be in place and  
working properly. Never remove or  
cause the debris shield or debris flap to  
cease working. If either of these parts  
is missing or not working properly, do  
not use the equipment until this situa-  
tion is corrected.  
Avoid starting or stopping on a  
slope.  
c) Never refuel the machine in-  
doors. Fill the fuel tank outdoors  
and with extreme care.  
d) Never store the machine or fuel  
container inside where there is  
an open flame, such as a water  
heater, etc.  
27. Be aware of where the machine is  
discharging materials and do not point  
the discharge at anyone.  
DO NOT:  
e) Replace caps on the fuel tank  
and fuel container and clean up  
spilled fuel before starting en-  
gine. Move machine away from  
any gasoline fumes before start-  
ing the engine.  
Do not mow near drop-offs, ditches,  
or embankments. You could lose  
footing or balance.  
28. Never run the engine in an en-  
closed area. Engine exhaust contains  
carbon monoxide, a deadly gas that is  
odorless, colorless and tasteless.  
Always run the engine outdoors where  
there is adequate ventilation.  
Do not mow on very steep slopes.  
Do not mow on wet grass. Slippery  
footing can be hazardous.  
f) Keep matches, smoking materi-  
als, open flames, and sparks  
away from the fuel tank and fuel  
container.  
Children  
29. Slow down before turning.  
30. Shut off engine when not trimming  
or mowing.  
Tragic accidents can occur if the opera-  
tor is not alert to the presence of chil-  
dren. Children are often attracted to the  
machine and the mowing activity.  
Never assume that children will remain  
where you last saw them.  
g) Leave 1/2" air space at the top of  
the fuel tank to allow for fuel ex-  
pansion.  
31. Use extra care when loading or un-  
loading machine into a trailer or truck.  
32. Use this equipment for its intended  
purpose only.  
33. Always make sure the handlebars  
are tight and comfortably positioned.  
2
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Section 1: Safety  
2. Never run the engine inside a  
closed area.  
and debris shield. Make sure they are  
not bent, damaged, or loose.  
16. Remember the end of the sea-  
son is a good time to inspect equip-  
ment prior to storage.  
3. Never clean, or make adjustments  
or repairs with the engine running.  
Disconnect the spark plug wire and  
keep the wire away from the plug to  
prevent accidental starting. Remove  
key on electric start models.  
10. Only use eighteen-inch long .130"  
or .155" diameter trimmer line. Never  
use other lengths, diameters or material  
as trimmer line.  
17. To guard against engine overheat-  
ing, always keep the engine debris  
guard mounted and clean.  
11. Trimmer line moves  
at high speed and can  
cut. Always stop the  
engine and let all mov-  
ing parts stop before  
replacing the trimmer lines. Let the  
engine cool.  
18. For units equipped with electric  
start:  
4. Keep all nuts and bolts tight, espe-  
cially the trimmer head attachment  
bolts, and keep equipment in good  
condition. Check mounting hardware  
on trimmer head every time you  
change trimmer line and prior to each  
use.  
a) Batteries produce explosive  
gases. Keep sparks, flame,  
cigarettes, etc., away. Ventilate  
area when charging battery. Do  
not charge battery in an airtight  
space.  
12. Do not change the engine gover-  
nor setting or overspeed the engine.  
The governor controls maximum safe  
operating speed and protects the en-  
gine and all moving parts from dam-  
age caused by overspeed. Authorized  
service shall be sought if a problem  
exists.  
b) Do not use a battery charger  
other than the one provided with  
the unit.  
5. Never tamper with safety devices.  
Check their proper operation regularly.  
6. To reduce fire hazard, keep mower  
free of grass, leaves or other debris  
build-up. Clean up oil or fuel spills. Let  
machine cool before storing.  
c) The battery contains toxic mate-  
rials. Do not damage the battery  
case. If the case is broken or  
damaged, avoid contact with the  
battery contents.  
13. Do not touch engine parts which  
may be hot from operation. Allow  
parts to cool completely before in-  
specting, cleaning or repairing the unit.  
7. After striking an object, stop the  
engine and disconnect the spark plug  
wire. Inspect the machine and repair, if  
necessary, before restarting.  
d) Properly dispose of a damaged  
or worn out battery. Check with  
local authorities for proper dis-  
posal methods.  
14. Maintain or replace safety and in-  
structional decals. Refer to the Parts  
List for replacement decal information.  
8. Never make adjustments or repairs  
while engine is running.  
e) Do not short circuit the battery.  
Severe burns and fire can  
result.  
9. Components subject to wear,  
damage and deterioration could ex-  
pose moving parts or allow objects to  
be thrown. Frequently check compo-  
nents and replace with factory recom-  
mended parts, when necessary.  
15. Use only original-equipment  
replacement parts. Parts manufac-  
tured by others could present safety  
hazards and affect performance even  
though they may fit on this machine.  
Regularly inspect the trimmer head  
Safety Decals  
Make certain that all safety decals on this equipment are  
kept clean and in good condition. The decals are shown (at  
reduced sizes) below. If you need a replacement decal,  
refer to the Parts List in this Manual.  
WARNING  
THROWN OBJECT HAZARD  
Objects will be thrown violently by the  
cutting head, resulting in significant hazard!  
Keep children, pets and bystanders 50 feet  
away from machine while operating.  
Be alert to hidden obstacles.  
READ OWNERS MANUAL  
If you need a replacement manual, write to the  
address listed on the serial number decal on  
this unit.  
ROTATING CUTTING HEAD  
On engine, above muffler  
Do not service or adjust cutting head or other  
moving parts unless engine is stopped and  
spark plug wire is disconnected.  
1918115 (12/99)  
On left  
handlebar  
At front of deck  
3
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Section  
Assembly  
2
STEP 1: Unpacking Unit  
STEP 2: Install Handlebars  
WARNING  
1. Remove the protective packaging  
material (plastic film and cardboard)  
from the handlebars and the unit.  
1. Cut the plastic tie and remove the  
tape that secures the control bail (G,  
Figure 2-2) to the handlebar (A).  
To prevent personal injury or property  
damage, do not attempt to start the  
engine until all assembly steps are  
complete and you have read and un-  
derstand all of the safety and  
the operating instructions in this  
Manual.  
2. Remove the handlebars from the  
insert and carefully (do not pinch or  
kink the attached cables) put them  
aside before removing the unit from  
the shipping carton.  
NOTE: Do not pinch or kink the at-  
tached cable(s) while unfolding and  
securing the handlebars.  
2. Carefully lift the handlebars (A,  
Figure 2-2) to rear of the unit and align  
the handlebar legs with the handlebar  
support bracket (B).  
3. Compare the parts inside the carton  
with the following list:  
Introduction  
Carefully follow these assembly steps  
to correctly prepare your machine for  
use. It is recommended that you read  
this Section in its entirety before begin-  
ning assembly.  
Trimmer/Mower Assembly (A, Figure  
2-1)  
Extra Trimmer Line (B, Figure 2-1):  
six pieces of heavy-duty gauge .130"  
dia. line and six pieces of extra-heavy-  
duty gauge .155" dia. line.  
3. Route the trimmer head control  
cable (C, Figure 2-2) to the outside of  
the handlebar. On electric start models,  
also route the electrical wire harness  
(O) to the outside of the handlebar.  
NOTE: If an assembly step applies only  
to certain models, those models are  
noted at the beginning of that step.  
Otherwise, a step applies to all models.  
4. Select the low or high height setting  
holes in the handlebar legs and attach  
the legs with the two 5/16-18 x 2 hex  
hd. screws (D) and 5/16-18 locknuts  
(E) from the hardware bag.  
The following items are in a separate  
package:  
(1) Safety goggles  
(3) Plastic cable ties  
Inspection After Delivery  
(1) Hex Hd. Screw, 1/4-20 x 2  
(1) Hex Locknut, 1/4-20  
(2) Hex Hd. Screw, 5/16-18 x 2  
(2) Hex Locknut, 5/16-18  
IMPORTANT: Adjust the handlebars as  
close as possible to waist level so that  
your arms are at a comfortable height.  
This position will result in less pres-  
sure on the mower wear cup, making  
the unit easier to roll and reducing wear  
to the wear cup.  
Inspect your machine immediately after  
it has been delivered. Make sure that  
neither the carton nor the contents  
have been damaged.  
Electric Start Model Only:  
(1) Battery (installed on unit see  
C, Figure 2-1)  
If you find or suspect any damage,  
contact the carrier (trucking company)  
right away. Inform them of the specific  
damage and that you wish to file a  
claim. To protect your rights, be sure  
to put this in writing to the carrier  
within 15 days after your machine ar-  
rives. Please let us know if you need  
assistance with this matter.  
(2) Ignition Keys and (1) Battery  
Recharger (in separate electric  
start package)  
A
IMPORTANT: The engine is shipped  
without motor oil in its crankcase.  
Motor oil must be added to the engine  
before starting.  
B
NOTE: LEFT and RIGHT sides of unit  
are as viewed from operators position  
behind the handlebars.  
Tools/Supplies Needed:  
(1) Utility Knife or Scissors  
(2) 1/2" (or adjustable) Wrenches  
(2) 7/16" Wrenches (one with a boxed  
end)  
C
Motor Oil (see Engine Owners  
Manual for oil specifications and  
quantity required)  
Figure 2-1: Unit as shipped (recoil start model shown). Battery for electric start  
model is shown in inset.  
4
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Section 2: Assembly  
5. Use two cable ties (F, Figure 2-2)  
to secure the trimmer head control  
cable (C) and the electrical wiring har-  
ness (O) to the handlebar at the loca-  
tions shown.  
A
G
STEP 3: Attach Throttle  
Control Lever  
C
1. One end of the Throttle Control  
Cable (H, Figure 2-3) is attached to  
the engine. Gently unwind the cable  
from its shipping position and posi-  
tion the Throttle Control Lever (I) on  
the outside of the right handlebar,  
next to the throttle control decal.  
O
F
B
E
D
2. Secure the Throttle Control Lever  
to the handlebar with a 1/4-20 x 2 hex  
hd. screw (J, Figure 2-3) and 1/4-20  
hex locknut (K).  
F
3. Use a cable tie (L, Figure 2-3) to  
secure the throttle cable (H) to the  
handlebar at the location shown.  
STEP 4: Add Motor Oil  
1. The engine is shipped without  
motor oil which MUST BE ADDED  
before the engine is started.  
2. See the separate Engine Owners  
Manual for filling instructions and for  
the correct oil specifications. Engine  
must be level when checking oil level.  
In ambient temperatures above 320 F,  
use a high-quality, SAE 30 weight  
detergent oil classified for Service SF -  
SJ. Use no special additives. Do not  
mix oil with fuel.  
Figure 2-2: Handlebar installation (electric start model shown).  
I
M
J
I
STEP 5: Check Trimmer  
Head Hardware  
K
Check that the two bolts (M, Figure  
2-4) on the trimmer head are tight-  
ened securely. The trimmer head can  
be rotated to make access to the hard-  
ware easier.  
H
M
Figure 2-4: Check trimmer head hard-  
ware for tightness.  
L
IMPORTANT: The trimmer head hard-  
ware is designed to be permanently  
installed and is not removable. Do not  
attempt to replace it with non-factory  
specified hardware.  
Figure 2-3: Attach throttle lever to right-side  
handlebar.  
NOTE: The two holes (one is covered  
with a plastic plug) on the top, front  
end of the mower deck are access  
holes that allow certain parts to be  
serviced.  
5
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Section 2: Assembly  
STEP 6: Connect and Charge  
Battery (Electric Start Models)  
X
DANGER  
Wet conditions can cause an elec-  
tric shock hazard during battery  
recharging. Avoid wet conditions  
when charging battery.  
P
Recharging the battery with im-  
proper equipment could cause a  
battery explosion. Use only the bat-  
tery charger shipped with the unit.  
The engine must be shut off and the  
spark plug wire disconnected and  
moved away from the spark plug.  
Figure 2-5: Lift and tilt debris shield  
forward to access battery.  
Failure to comply could result in  
personal injury or property damage.  
1. Lift and tilt debris shield (X, Figure  
2-5) forward to view battery (P).  
R
S
Connect the red wire (R, Figure 2-6) to  
the positive (+) red-coded terminal on  
the battery. Then, connect the black  
wire (S) to the negative () black-  
coded terminal on the battery. Close  
the debris shield (X, Figure 2-5).  
2. Connect the small plug (U, Figure  
2-7) on the battery recharger cord to  
the wire harness plug (V) located near  
the keyswitch. Then, plug the charger  
box (W) into a grounded, 120V wall  
outlet.  
Figure 2-6  
W
3. Charge the battery for 24 hours.  
After charging, first unplug the charger  
box (W) from the wall outlet, then dis-  
connect the recharging line plugs (U  
and V).  
V
U
Figure 2-7  
6
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Section  
Features and Controls  
3
Operating Symbols  
Various symbols (shown  
here, with word descrip-  
tions) are used on the  
unit.  
STOP  
ENGAGE  
BAIL  
DISENGAGE  
BAIL  
FAST  
ENGINE  
STOP  
TRIMMER  
HEAD  
SLOW  
STOP  
Engine Throttle Control Lever  
Keyswitch (Electric Start Model)  
FEATURES AND CONTROLS  
Use this lever (F, Figure 3-1) to regu-  
late engine speed and to stop the en-  
gine. The throttle settings are shown  
on the decal next to the lever.  
On electric start models, the keyswitch  
(J, Figure 3-1) is used to start the  
engine. The keyswitch does not have  
an engine stop position. Use the  
Engine Throttle Control Lever (F) to  
stop the engine.  
This Section describes the location and  
function of the features and controls on  
your machine. Refer to the following  
Operation Section for detailed operat-  
ing instructions.  
Engine Recoil Starter  
Do not start the engine until you read  
and understand all safety, controls and  
operating instructions in this Manual,  
the separate Engine Owners Manual,  
and on the decals on the machine.  
The recoil starter (G, Figure 3-1) is  
located at the rear of the engine and is  
used to pull start the engine.  
IMPORTANT: Remove key from  
keyswitch when leaving unit unat-  
tended to help prevent unauthorized or  
unintentional starting.  
Engine Debris Guard  
The engine debris guard (H, Figure  
3-1) protects the engine from accumu-  
lations of cut materials that can clog  
the engine cooling passages. See the  
Maintenance Section for information  
on servicing this important guard.  
Battery (Electric Start Model)  
IMPORTANT: Refer to the separate  
Engine Owners Manual for detailed  
information about the controls on the  
engine.  
On electric start models, the battery (K,  
Figure 3-1) will crank the engine starter  
motor when the keyswitch is turned to  
the start position. Do not crank engine  
longer than five (5) seconds per each  
starting attempt.  
Trimmer Head Control Bail  
Pull the control bail (A, Figure 3-1) up  
against the handlebar (engage bail) to  
start rotation of the trimmer head. Let  
go of the control bail (disengage bail)  
to stop the trimmer head.  
Fuel Primer Button  
The fuel primer button (I, Figure 3-2)  
allows a cold engine to be primed for  
faster, easier starting.  
F
Cutting Height Settings  
The trimmer head (B, Figure 3-1) is  
adjustable to an infinite number of  
height settings from 1-1/2" -to- 4-1/2".  
A
J
Trimmer Line Holders  
G
H
The trimmer lines are secured to line  
holders (C, Figure 3-1). Replacing the  
trimmer lines is a simple procedure (see  
Changing Trimming Lines in Section 5).  
D
E
K
Handlebar Height Adjustment  
The handlebar (D, Figure 3-1) has two  
height settings (see Adjust Handlebar  
Height in the Operation Section).  
I
Plastic Debris Shield  
The plastic debris shield (E, Figure 3-1)  
protects the engine from all manner of  
debris. The shield tilts forward for ac-  
cess to the engine.  
Figure 3-2: Engine primer.  
B
C
Figure 3-1: Features and controls (electric start model shown).  
7
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Section  
Operation  
4
11. Check that the spark plug wire is  
ADJUST LINE CUTTING HEIGHT  
WARNING  
securely attached to the spark plug.  
Before operating your machine, care-  
fully read and understand all safety  
(Section 1), controls (Section 3) and  
operating instructions (Section 4) in  
this Manual, in the separate Engine  
Owners Manual, and on the decals  
on the machine.  
CAUTION  
* Clean debris from around fuel cap,  
oil dipstick, and engine debris guard  
before checking oil level or adding  
gasoline, in order to keep dirt out of  
engine.  
Before adjusting the cutting height,  
shut off the engine, wait for all mov-  
ing parts to stop, allow the engine to  
cool, disconnect the spark plug wire  
and prevent it from touching the  
spark plug.  
FILL FUEL TANK  
Failure to follow these instructions  
can result in serious personal injury.  
Failure to comply could result in per-  
sonal injury or property damage.  
DANGER  
GASOLINE IS HIGHLY FLAMMABLE  
AND ITS VAPORS ARE EXPLOSIVE.  
The cutting height of the trimmer line  
adjusts from 1-1/2"-to-4-1/2" high in  
infinite increments. The cutting height  
has been factory-set at one of the  
higher settings we recommend that  
you start at this higher setting and  
make adjustments as needed.  
INTRODUCTION  
Follow gasoline safety rules in this  
Manual (see Section 1) and in the  
separate Engine Owners Manual.  
Read this Section thoroughly before  
you start the engine. As with any piece  
of outdoor power equipment, getting  
the feelfor how your machine oper-  
ates and knowing the best techniques  
for particular jobs are important to  
overall good performance.  
Failure to follow gasoline safety rules  
and instructions can result in serious  
personal injury and property damage.  
In general, use higher height settings  
to handle taller material and to cope  
with tougher cutting conditions. For  
less demanding situations, use any  
trimming height desired. To adjust the  
cutting height:  
1. Lift and tilt plastic debris shield (E,  
Figure 3-1) forward.  
NOTE: All references to LEFT, RIGHT,  
FRONT and REAR of the machine are  
determined by standing in the opera-  
tors position.  
2. Clean fuel fill area and engine debris  
guard each time before fuel is added.  
3. Fill the fuel tank with gasoline ac-  
cording to the directions in the sepa-  
rate Engine Owners Manual. Follow all  
instructions and safety rules carefully.  
1. The cutting line height can be  
PRE-START CHECKLIST  
1. Review Section 1: Safety and also  
Section 3: Features and Controls.  
changed when the wear cup is in con-  
tact with the ground. If necessary, you  
may tip the unit back slightly for a  
better view (do not tip unit all the way  
back or motor oil may flow to the ex-  
haust area and the engine may smoke  
for several seconds when started).  
4. Securely replace the fuel tank cap  
and the fuel container cap. Promptly  
wipe up any fuel spills.  
2. Check for loose or missing hard-  
ware. Tighten or replace as needed.  
3. Check the engine oil level*. It must  
be up to the FULLmark on the oil  
dipstick. (See the Engine Owners  
Manual for instructions.)  
5. Lift and tilt the debris shield back,  
then push it down to secure it.  
2. Use a 1/2" wrench to loosen both  
bolts (A, Figure 4-1) securing the trim-  
mer head.  
ADJUST HANDLEBAR HEIGHT  
4. Check the fuel level* in the fuel  
tank. (See the Engine Owners Manual  
and this page for instructions.)  
3. The cutting heights are marked on  
the side of the spindle head (Figure  
4-2). Move the top of the trimmer  
head to the desired setting.  
CAUTION  
Before adjusting handlebar height,  
stop engine and wait for all moving  
parts to stop, disconnect spark plug  
wire and prevent it from touching  
spark plug.  
5. Check the Trimmer Head Control  
Bail and the Engine Throttle Control  
Lever for freedom of movement.  
4. Tighten both trimmer head bolts  
securely (to 75 in/lbs.) and evenly.  
6. Select the cutting height (see Adjust  
Line Cutting Height in this Section).  
Failure to comply could result in  
personal injury or property damage.  
A
7. Check handlebar height position.  
8. On electric start models, check the  
wire harness connections.  
To adjust handlebar height, refer to  
Install Handlebars in the Assembly  
Section of this Manual.  
9. Carefully check the area to be  
trimmed and remove any debris.  
10. Install the correct diameter trim-  
mer line (see Use the Correct Diameter  
Trimmer Line in this Section).  
A
Figure 4-1  
8
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Section 4: Operation  
Starting the Engine  
1. Move the unit to the work area.  
USE THE CORRECT DIAMETER  
TRIMMER LINE  
Before starting a project, examine the  
grass or material you will be cutting  
and trimming.  
2. Connect the spark plug wire to the  
spark plug.  
3. Put on safety-approved eye  
For tougher conditions, use two (or  
four) sections of the thicker gauge,  
.155" diameter extra-heavy duty line.  
For less demanding conditions, use  
two sections of the thinner gauge,  
.130" diameter heavy-duty line. The  
thicker line has the heft to chop  
protection.  
4. Release (disengage) the Trimmer  
Head Control Bail (A, Figure 4-3).  
A
5. Put the Engine Throttle Control  
Lever in the FAST (rabbit symbol)  
position.  
Figure 4-3: Control bail disengaged.  
through tougher materials, while the  
thinner line provides a more precise  
cut. To change trimmer lines, refer to  
Changing Trimmer Lines in Section 5.  
6. Push in the fuel primer button as  
instructed in the Engine Owners  
Manual. NOTE: Do not use primer to  
restart a warm engine after a short  
shutdown.  
NOTE: The thinner gauge line is also  
recommended for use near trees or or-  
namentals to help prevent girdling  
(cutting the bark).  
7. Recoil Starting: Pull recoil start rope  
slowly until resistance is felt. Then  
pull rope out rapidly to start engine.  
Let rope back in slowly. NOTE: If  
engine fails to start after three pulls,  
repeat step 6.  
Height  
Guide  
Figure 4-4: Control bail engaged.  
Electric Starting: Stand behind han-  
dlebars and turn ignition key clock-  
wise to crank engine. If engine  
does not start after five seconds of  
cranking, stop and repeat step 6.  
When engine starts, release key.  
WARNING  
If the trimmer head control bail is not  
operating properly, shut off the  
engine, disconnect the spark plug  
wire and move wire away from plug.  
Figure 4-2  
To Start the Trimmer Head  
1. Stand in the operators position  
directly behind the handlebars.  
USING THE TRIMMER HEAD  
CONTROL BAIL  
Before starting the engine, it is essen-  
tial to know how to use the Trimmer  
Head Control Bail.  
Adjust or repair the control bail  
before using the trimmer/mower.  
2. Slowly close the Trimmer Head  
Control Bail (Figure 4-4) against the  
handlebars to activate the trimmer  
head. Use the Engine Throttle Lever to  
adjust the turning speed of the trimmer  
head.  
Failure to follow this instruction could  
result in personal injury or property  
damage.  
1. The Trimmer Head Control Bail (A,  
Figure 4-3) is used to start and stop  
trimmer head motion.  
3. Once the trimmer head is revolving,  
push the trimmer/mower along the  
path to be cut.  
OPERATING THE  
TRIMMER/MOWER  
Once you have read and understood  
the sections in this Manual on Safety,  
Assembly, Features and Controls, and  
Operation, you are ready to start and  
operate your trimmer/mower.  
2. Leave the control bail in the disen-  
gaged (released) position when start-  
ing the engine to prevent the trimmer  
head from turning when the engine  
starts. See Figure 4-3.  
To Stop the Trimmer Head  
Let go of the Trimmer Head Control Bail.  
It will return to its open position and  
the trimmer head will stop turning.  
3. When the engine is running, pull up  
and hold the control bail against the  
handlebar (Figure 4-4) to start rotation  
of the trimmer head.  
Checklist Before Starting  
To Stop the Engine  
1. Complete the Pre-Start Checklist in  
this Section of the Manual. You must  
wear safety glasses or goggles.  
Put the Engine Throttle Control Lever in  
the STOP position. (If time allows, first  
move throttle lever to SLOW setting  
before stopping engine.)  
4. Let go of the control bail to stop the  
trimmer head. The control bail should  
spring forward to the disengaged posi-  
tion. If it doesnt, do not use the ma-  
chine until the control bail has been  
repaired.  
2. Check that the line cutting height is  
adjusted according to the instructions.  
9
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Section 4: Operation  
Clean the Trimmer/Mower  
On a Regular Basis  
Clean under the mower deck frequently  
to remove any grass buildup. Also  
clean around the muffler and on top of  
engine. See the cleaning instructions  
in Section 5: Maintenance.  
Vary the Throttle Setting  
According to Conditions  
The majority of trimming and mowing  
jobs will yield the best results if the  
Engine Throttle Control is set at the  
fastest engine speed.  
WARNING  
THROWN OBJECT HAZARD  
Objects such as rocks, pebbles,  
and small debris will be thrown  
violently by the cutting head,  
resulting in significant hazard to  
eyes and exposed body parts.  
Less demanding jobs that require very  
precise cutting will yield better results  
if the engine throttle is backed off  
somewhat to reduce engine speed.  
(For example, damage to trees and or-  
namentals can be avoided by reducing  
the engine speed; using the lighter  
.130" diameter line; and by keeping a  
safe distance away.)  
Do Not Let the Trimmer  
Lines Become Too Short  
Always wear safety-approved eye  
protection and suitable clothing  
and footwear.  
Once the trimmer lines are worn to less  
than 1/2 their original length, trimming  
jobs begin to take far longer than they  
should.  
Keep children, pets and bystanders  
50 feet away from machine while  
operating.  
Be alert to hidden obstacles.  
As a general guideline, once the line  
length becomes half of its original  
length, its time to change to new lines.  
Again, once you begin a particular job  
and get a feelfor the conditions, you  
will be able to make adjustments for  
the best possible results.  
Failure to comply could result in  
injury or property damage.  
Use Extreme Caution on Slopes  
When operating on sloping ground,  
use extreme caution and common  
sense to avoid possible injury or prop-  
erty damage.  
Keep the Mowed Side to Your  
Right as You Move Ahead  
ADDITIONAL OPERATING TIPS  
AND TECHNIQUES  
The trimmer/mower feeds cut materials  
to the right side. Stay on the right side  
of unmowed growth as you move  
along.  
Tips for Precision Cutting  
Do not mow on excessively steep  
For the most precise cutting possible,  
be sure to select the appropriate line  
cutting height and trimmer line size  
(thickness) for the conditions at hand.  
slopes! Avoid slopes if greater than  
150 or wherever footing is unsure. If a  
slope is difficult to stand on, it is prob-  
ably too steep to trim or mow. In this  
case, it may be wiser to establish a per-  
manent ground cover on this area.  
NOTE: If the trimmer is operated in  
a stationary position with the wear  
cup in contact with dry vegetation,  
significant heat will result that may  
deform the plastic spindle or scorch  
vegetation.  
When mowing, let the cutting head rest  
lightly on the ground and do not lift up  
on the handlebars. This allows the cut-  
ting head to follow the ground contour  
closely, resulting in the most even cut  
possible. Also, be sure to ease into  
heavy growth to prevent overwhelming  
the machine.  
Do not trim on slopes when the ground  
is slippery. Trim across the face of a  
slope, not up and down. Slow down  
and exercise caution when changing  
direction on slopes.  
Use Correct Walking Speed  
Trim When Wet or Dry  
Use a walking speed that is suitable for  
the conditions at hand. For example,  
youll get better trimming and mowing  
results at slower walking speeds if the  
grass is tall or lush. Shorter grass or  
less dense growth can be cut at faster  
travel speeds.  
Grass and most other materials are  
most efficiently trimmed when dry.  
But, the trimmer/mower will do a fine  
job even with damp or wet materials.  
When conditions are moist or damp, be  
sure to clean debris off the machine  
regularly to keep cutting efficiency  
high. And watch your footing!  
10  
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Section  
Maintenance  
5
ADJUSTING TRIMMER  
HEAD ENGAGEMENT  
WARNING  
Before inspecting, cleaning or servicing the machine, shut off engine, discon-  
nect spark plug wire, and make sure that all moving parts have come to a com-  
plete stop. Remove ignition key on electric start models.  
The tension on the drive belt must be  
correct for proper operation of the  
trimmer head. If the tension is correct,  
the trimmer head will rotate when the  
Trimmer Head Control Bail is pulled  
back against the handlebar (another in-  
dication of correct tension is if the  
engine stalls when the trimmer head  
becomes bound up in very tough  
material.)  
Failure to follow these instructions can result in personal injury or property  
damage.  
NOTE: LEFT and RIGHT sides of unit are as viewed  
from operators position behind the handlebars.  
A worn or loose drive belt will slip on  
its pulleys, causing the trimmer head  
to move slowly, or not at all, when the  
control bail is engaged (belt squealing  
may also be noticeable).  
REQUIRED MAINTENANCE SCHEDULE  
BEFORE EVERY EVERY EVERY  
EACH 25 100 NOTED  
USE HOURS HOURS HOURS  
AS  
If the tension is too tight, the trimmer  
head may rotate before the control bail  
is engaged, or when there is no free  
play in the control bail.  
REQUIRED MAINTENANCE  
5
CHECK ENGINE OIL LEVEL  
CHECK TRIMMER/MOWER LINES  
CHECK TRIMMER HEAD ENGAGEMENT  
ENGINE/MACHINE CLEANING  
CHECK NUTS AND BOLTS  
CHANGE ENGINE OIL  
To Adjust Belt Tension  
1
3
1. Stop the engine and wait for all  
parts to stop moving. Adjust the posi-  
tion of the two nuts on the control  
cable adjustment stud (see Figure 5-2)  
as described next:  
2, 5  
5
a. To tighten belt tension, move the  
upper nut (A, Figure 5-2) upward,  
then move the lower nut (B) upward.  
Tighten both nuts securely.  
SERVICE AIR FILTER SYSTEM  
CLEAN UNDER DECK  
GENERAL LUBRICATION  
INSPECT DRIVE BELT  
b. To loosen belt tension, move the  
lower nut (B, Figure 5-2) down and  
then the upper nut (A) down.  
Tighten both nuts securely.  
CLEAN ENGINE DEBRIS GUARD  
CHECK WEAR CUP  
4
6
Chart 5-1  
A
NOTE 1 New line replacement is suggested when old line is 50% or less of original length.  
NOTE 2 Change oil after first two hours of new operation; thereafter every 25 hours.  
NOTE 3 Clean daily if used in extremely dusty/dirty conditions (see Engine Owners Manual).  
NOTE 4 Clean before using machine and at each fuel refill.  
B
NOTE 5 Service more often if used in extremely dusty or dirty conditions (see Engine  
Owners Manual).  
NOTE 6 Replace when severe gouges exist on bottom surface.  
Figure 5-2: Belt tension adjustment.  
11  
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Section 5: Maintenance  
Before inspecting, cleaning or servicing the machine, shut off engine, wait for all moving parts to  
come to a complete stop, disconnect spark plug wire and move wire away from spark plug.  
Remove ignition key on electric start models.  
WARNING  
Failure to follow these instructions can result in serious personal injury or property damage.  
3. Carefully tip unit on its left side and  
secure it in place.  
REMOVING AND REPLACING  
THE TRIMMER HEAD  
INSPECTING / REPLACING  
THE DRIVE BELT  
4. Remove the plastic plug (A, Figure  
5-4) from the top of the mower deck.  
1. Stop the engine and wait for all  
moving parts to stop. Disconnect  
spark plug wire and move it away from  
the spark plug. Remove the ignition  
key on electric start models.  
The drive belt can be inspected or re-  
placed from beneath the machine deck.  
The belt should not require inspection  
for many hours of operation. If re-  
placement becomes necessary, follow  
the instructions given here.  
5. Using a 3/4" socket wrench, remove  
nut (B, Figure 5-4), belleville washer  
(C) and flat washer (D) from spindle  
shaft (E).  
2. Two bolts (A, Figure 5-3) secure the  
trimmer head (B) to the spindle head  
(C). Loosen both bolts (not the nuts)  
just enough to open up the trimmer  
head and allow it to slide down the  
spindle head and past the two stops.  
Do not attempt to remove the bolts  
completely they are permanently  
attached.  
Belt Inspection  
A
B
C
D
Stop the engine and let all moving parts  
stop. Allow the engine to cool.  
Disconnect the spark plug wire and  
move it away from the spark plug.  
Remove the ignition key on electric  
start models.  
E
1. For convenience, we recommend  
that you place the unit on a raised plat-  
form to make access to the underside  
of the deck as easy as possible.  
3. Install the new trimmer head on the  
spindle head. Tighten the hardware  
securely (to 75 in/lbs.) and evenly.  
4. If the wear cup (D, Figure 5-3) is  
worn, replace it. Use a 1/2" socket  
wrench to remove the screw (E, Figure  
5-3) and washer (F). Install the new  
wear cup and reinstall the washer and  
screw. Tighten the screw securely.  
2. Examine the belt. Feed it around  
the rear (engine) pulley so the entire  
belt can be examined. If cracks or  
other damage are noted, a new belt is  
needed.  
Figure 5-4  
Belt Removal  
6. Thread nut (B, Figure 5-4) a few  
turns back onto spindle shaft (E) to  
protect threads on spindle shaft during  
the next step.  
1. Stop the engine and wait for engine  
to cool. Disconnect the spark plug wire  
and move it away from the spark plug.  
Remove the ignition key on electric  
start models.  
C
B
7. Loosen the spindle shaft by placing  
a wood block against the top of the nut  
(B, Figure 5-4) and firmly striking the  
wood block with a hammer.  
2. Remove gasoline from fuel tank.  
8. Remove the nut from the spindle  
shaft and then remove the spindle shaft  
(E, Figure 5-5) and entire spindle head  
assembly (F) from the bottom of the  
deck. Slip the belt off the spindle head  
pulley (P).  
DANGER  
GASOLINE IS HIGHLY FLAMMABLE  
AND ITS VAPORS ARE EXPLOSIVE.  
A
D
Drain fuel into approved container  
outdoors, away from open flame.  
F
E
Be sure engine and muffler are cool  
before draining gasoline.  
9. Disconnect the idler arm spring (R,  
Figure 5-6) from the hole in the idler  
arm (T).  
Do not smoke.  
10. Using a 1/2" wrench, loosen the  
idler arm mounting screw (S, Figure 5-  
6) two full turns.  
Failure to comply can result in seri-  
ous personal injury and property  
damage.  
Figure 5-3  
12  
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Section 5: Maintenance  
Before inspecting, cleaning or servicing the machine, shut off engine, wait for all moving parts to  
come to a complete stop, disconnect spark plug wire and move wire away from spark plug.  
Remove ignition key on electric start models.  
WARNING  
Failure to follow these instructions can result in serious personal injury or property damage.  
11. Using a 9/16" wrench and a 7/32"  
hex (Allen) wrench, loosen the mount-  
ing nut (G, Figure 5-6) and screw on  
the idler pulley (I) a few turns, or until  
belt is free to slip out between pulley  
and belt guide (J). Remove belt.  
head assembly (Figure 5-6A), seat the  
spindle head assembly into the hole.  
Check that the threaded end of the  
spindle shaft is protruding through the  
bottom of the hole.  
P
E
8. Reinstall the flat washer (D, Figure  
5-4), belleville washer (C) and nut (B)  
on the spindle shaft. Note that the  
dished-in side of the belleville washer  
must face the flat washer. Tighten the  
nut securely (torque to 50 ft./lbs.),  
while checking frequently to ensure  
that the spindle head rotates freely. If  
the spindle head binds, it could be due  
to the belt being pinched between the  
spindle head and the belt guides. If so,  
remove the spindle head assembly and  
repeat steps 5-7.  
12. Loosen rear belt guide screw (K,  
Figure 5-6) enough to allow belt to be  
removed from engine pulley (L).  
Remove belt from unit.  
F
Belt Replacement  
1. Install belt on engine pulley (L,  
Figure 5-6) and retighten rear belt  
guide screw (K) securely.  
Figure 5-5  
2. Route belt between idler pulley (I,  
Figure 5-6) and belt guide (J), to inside  
of brake arm (M), and next to die-cast  
belt guides (N).  
K
T
R
3. Securely tighten the mounting nut  
(G, Figure 5-6) and screw in the idler  
pulley (I).  
N
O
4. Securely tighten the idler arm  
mounting screw (S, Figure 5-6). After  
tightening, check that idler arm is free  
to rotate. If not, remove idler arm and  
check for debris that may be interfering  
with freedom of movement.  
S
L
J
5. Look at the spindle head mounting  
hole (O, Figure 5-6) and note the  
grooves that are cut into the inner  
sides of the hole. These grooves were  
formed by the splines on the spindle  
shaft (E, Figure 5-5).  
N
M
G
I
Figure 5-6  
6. Install the belt on the spindle head  
pulley (P, Figure 5-5) and insert the  
spindle shaft (E) (with attached spindle  
head assembly) into the spindle head  
mounting hole (O, Figure 5-6). Rotate  
the spindle head assembly to align the  
splines on the spindle shaft with the  
grooves in the mounting hole. Check  
that the belt is still in the pulley groove  
and is to the inside of the die-cast belt  
guides (N, Figure 5-6).  
9. Replace plastic plug (A, Figure 5-4).  
10. Reattach the idler arm spring (R,  
Figure 5-6) in the hole in the idler arm  
(T).  
11. A new belt may need to be ad-  
justed by following the Adjusting  
Trimmer Head Engagement instruc-  
tions in this Section.  
7. Using a firm push on the spindle  
Figure 5-6A  
13  
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Section 5: Maintenance  
Before inspecting, cleaning or servicing the machine, shut off engine, wait for all moving parts to  
come to a complete stop, disconnect spark plug wire and move wire away from spark plug.  
Remove ignition key on electric start models.  
WARNING  
Failure to follow these instructions can result in serious personal injury or property damage.  
ation. Running the engine when it is  
low on oil will quickly ruin the engine.  
TRIMMER/MOWER CLEANING  
AND DEBRIS REMOVAL  
WARNING  
Never run engine without debris  
guard properly installed. If debris  
guard is not properly installed, grass  
clippings may be drawn into engine,  
causing heat buildup and, in some  
cases, a fire.  
Change the oil after every 25 hours of  
operation and even sooner when  
operating in extremely dirty or dusty  
conditions.  
Thorough and regular cleaning of de-  
bris from around the engine and on the  
machine is required for maximum  
engine efficiency and good overall  
performance. Inspect and clean the  
following areas regularly, making sure  
the engine is stopped, and cool, before  
proceeding:  
Air Cleaner Service  
The engine air cleaner filters dirt and  
dust out of the air before it enters the  
carburetor. Operating the engine with a  
dirty, clogged air filter can cause poor  
performance and damage to the en-  
gine. Never operate the engine without  
the air cleaner installed. Inspect and  
service the air cleaner after every 25  
operating hours, more often if operat-  
ing in very dusty or dirty conditions.  
Refer to the Engine Owners Manual for  
cleaning or replacement instructions.  
Failure to comply can cause injury or  
property damage.  
Brush and wipe off all engine sur-  
faces, especially before checking oil  
or adding fuel. Do not let oil or  
grease accumulate. For access to the  
front of the engine, the debris shield  
can be lifted up and tilted forward.  
LUBRICATION  
Applying light oil or a silicone-based  
lubricant to your machine allows parts  
to work more smoothly and protects  
them from the elements. The following  
are general guidelines:  
Wipe the deck clean, particularly near  
the engine muffler.  
Silicone-base Spray Lubricant  
(or light oil):  
Clean the underside of the deck.  
Spark Plug Service  
Keep safety and operating decals  
Inspect and clean or replace the spark  
plug after every 100 operating hours or  
annually. Refer to the Engine Owners  
Manual for cleaning or replacement  
instructions.  
clean and legible.  
Throttle control cable  
Control bail cable  
Nuts, bolts and other hardware  
Keep all operating control levers  
debris-free so they work properly.  
NOTE: The spindle head is perma-  
nently lubricated at the factory. There  
is no need for additional lubrication.  
CLEANING THE ENGINE  
DEBRIS GUARD  
Spark Arrester Screen Service  
If the engine is equipped with a spark  
arrester screen, remove and clean it  
according to the time intervals and  
instructions in the Engine Owners  
Manual.  
It is extremely important to keep the  
engine debris guard (A, Figure 5-7)  
free of dirt and debris so the engine  
can run as efficiently and as cool as  
possible.  
COMPACT STORAGE  
For compact storage of the unit, re-  
move the two screws and locknuts se-  
curing the handlebar and carefully (to  
avoid kinking the cables) rotate the  
handlebar so that the upper portion  
rests on the engine and the handlebar  
legs face to the rear of the unit.  
Engine Cleaning  
Brush the debris guard clean before  
using the unit each time and whenever  
you see a build-up of dirt and debris.  
The engine must be kept clean to as-  
sure smooth operation and to prevent  
damage from overheating. Refer to the  
Engine Owners Manual for specific  
cleaning instructions.  
NOTE: The separate engine air cleaner  
must also be serviced according to the  
instructions in the Engine Owners  
Manual.  
GENERAL ENGINE  
MAINTENANCE  
Perform the following engine mainte-  
nance for your engine according to the  
engine maintenance schedule and in-  
structions in the separate Engine  
Owners Manual:  
Carburetor/Governor Control  
Adjustments  
A
The carburetor was adjusted at the fac-  
tory for best operating speed. Refer to  
the Engine Owners Manual for any ad-  
justment information.  
Engine Oil Service  
Check the engine oil level before start-  
ing the engine each day and check it  
after each 5 hours of continuous oper-  
The governor controls the maximum  
safe operating speed and protects the  
engine and other moving parts from  
Figure 5-7  
14  
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Section 5: Maintenance  
damage caused by overspeeding. Do not Change engine oil.  
BATTERY REPLACEMENT  
tamper with the governor settings. Seek  
authorized service if you think an adjust-  
ment is required.  
Clean any dirt, grass or chaff from the  
If the battery no longer takes a charge,  
or if it is leaking or otherwise damaged,  
it must be replaced.  
air cooling system intake area and  
other parts of the engine.  
Check nuts, bolts, other hardware for  
tightness. Replace missing hardware.  
Throttle Control Adjustment  
1. Tilt the debris shield forward.  
If the engine does not shut off when the  
throttle lever is moved to the stop posi-  
tion, or if the engine does not respond  
to various throttle settings, refer to the  
Engine Owners Manual for service in-  
formation.  
2. Disconnect the negative () black  
wire first; then the positive (+) red wire.  
On an electric start model, remove key  
from keyswitch. Charge battery for 24  
hours before and after storage.  
3. A clamp secured with two screws  
holds the battery to the deck. Remove  
screw (D, Figure 5-9), then lift the bat-  
tery from under the battery clamp.  
Disconnect spark plug wire from spark  
plug. Prevent wire from touching  
spark plug by placing wire away from  
spark plug.  
4. Position the new battery under the  
clamp and replace screw (D).  
OFF-SEASON STORAGE  
When storing the trimmer/mower for  
extended periods, follow these proce-  
dures to ensure that the unit will be in  
good condition for future use.  
BATTERY RECHARGING (Models  
with electric start feature)  
5. Connect the red wire to the positive  
(+) red-coded battery terminal. Then,  
connect the black wire to the negative  
() black-coded battery terminal.  
DANGER  
Store machine on a level surface.  
NOTE: Discard battery properly, as  
required by regulations in your area.  
Wet conditions can cause an elec-  
tric shock hazard during battery  
charging. Avoid wet conditions  
when charging.  
Thoroughly inspect the machine for  
any loose, broken or missing parts.  
Repair or replace parts as necessary.  
6. Close the debris shield.  
Perform recommended engine mainte-  
nance by following the engine  
Recharging the battery with  
improper equipment could cause a  
battery explosion. Use only the bat-  
tery charger shipped to you. All  
parts must be fully stopped and the  
spark plug wire disconnected and  
moved away from the spark plug.  
storage instructions found in the  
Engine Owners Manual. Be sure to  
protect the fuel lines, carburetor and  
fuel tank from gum deposits by remov-  
ing fuel or by treating fuel with a fuel  
stabilizer (follow engine manufacturers  
recommendations).  
C
Failure to comply could result in per-  
sonal injury or property damage.  
WARNING  
A
Never perform maintenance when  
engine is running or spark plug wire  
is connected, except when  
instructed to do so.  
Recharge the battery before and after  
storing the unit for more than three  
weeks.  
B
Figure 5-8: Use recharger supplied with  
unit.  
The engine must be stopped and the  
area in which recharging will take place  
must be dry.  
Never store mower with fuel in fuel  
tank inside a building where fumes  
can reach an open flame or spark,  
or where ignition sources are pre-  
sent such as hot water and space  
heaters, furnaces, clothes dryers,  
stoves, electric motors, etc. Make  
sure engine is cool before storing.  
1. Connect the small plug on the bat-  
tery charger cord (A, Figure 5-8) to the  
wire harness plug (B) located near the  
keyswitch.  
2. Plug the recharger box (C, Figure 5-  
8) into a grounded 120-Volt wall  
outlet.  
Drain gasoline outdoors into an  
approved container.Do not smoke  
and keep fuel away from open  
flame.  
3. Charge the battery for 24 hours.  
After charging, unplug the recharger box  
(C, Figure 5-8) from the wall outlet first,  
then disconnect the recharging line  
plugs (A and B, Figure 5-8).  
D
Failure to follow these instructions  
will result in serious personal injury  
or property damage.  
Figure 5-9: Battery replacement.  
15  
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Section 5: Maintenance  
Before inspecting, cleaning or servicing the machine, shut off engine, wait for all moving parts to  
come to a complete stop, disconnect spark plug wire and move wire away from spark plug.  
Remove ignition key on electric start models.  
WARNING  
Failure to follow these instructions can result in serious personal injury or property damage.  
4. Simply feed the line through the  
CHANGING TRIMMER LINES  
WARNING  
loops of the line holder as shown. An  
equal amount of line should project out  
from each side of the line holder, creat-  
ing an overall 22" wide cutting swath.  
You may offset both trimmer lines  
somewhat to increase the cutting  
swath up to 25" wide. However, DO  
NOT offset the line so that the overall  
cutting swath is greater than 25". See  
Warning statement at right.  
The trimmer lines will wear with use  
and eventually require replacement.  
Also, you may wish to switch between  
the thinner and thicker gauge lines to  
handle different mowing conditions.  
Offsetting the trimmer lines causes  
the lines to rotate faster than when  
they project an equal length on each  
side. This increases the chance of  
loose materials being dislodged and  
propelled at high speeds.  
Replace the trimmer lines when they  
wear to the point that trimming and  
mowing projects take too long and  
require too much maneuvering of the  
machine. A good rule of thumb is to  
change the lines when they reach half  
their original length.  
Failure of the operator to wear safety  
goggles and appropriate clothing and  
to keep bystanders away can result in  
severe personal injury or property  
damage.  
IMPORTANT: Whether replacing one  
or both lines, they must both be .130"  
or .155" in diameter.  
Use the extra-heavy duty gauge (.155"  
diameter) line when cutting thick,  
tough growth. The thinner gauge  
(.130" diameter) line is for use in less  
demanding conditions, and is also rec-  
ommended for use near trees or orna-  
mentals to help prevent girdling (cut-  
ting of bark).  
5. Repeat steps 2 through 4 to replace  
the second trimmer line.  
Figure 5-10: Use this sin-  
gle line, easy-loop pattern  
for all but the more difficult  
cutting conditions.  
To Change Trimmer Lines:  
1. Stop engine, allow all parts to stop  
moving and then disconnect the spark  
plug wire. Remove the ignition key on  
electric start models. DO NOT tip the  
machine. DO NOT touch the metal  
wear cup on the bottom of the spindle  
head. This surface may be hot.  
Reverse Loop  
Figure 5-11: If the lines  
should loosen while trim-  
ming (especially in more  
difficult conditions), add a  
simple reverse loop. Note  
that this pattern will result  
in a slightly narrower over-  
all cutting swath.  
NOTE: The two line holders on the  
trimmer head are permanently secured  
by a screw and a nut. Do not attempt  
to remove the line holders as it is not  
necessary to remove them in order to  
change the trimmer lines.  
2. The trimmer lines can be changed  
when the trimmer head is in contact  
with the ground. If necessary, you  
may tip the unit back slightly for a bet-  
ter view. However, do not tip the unit  
all the way back or motor oil may flow  
to the exhaust area and the engine may  
smoke for several seconds when  
started.  
Figure 5-12: For more diffi-  
cult cutting conditions, use  
two of the thicker gauge  
(.155" diameter) lines in  
each line holder. Follow  
the installation pattern  
shown in Figure 5-10.  
3. Three different line installation pat-  
terns are available, as shown in Figures  
5-10, 5-11 and 5-12.  
16  
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Section 5: Maintenance  
TROUBLESHOOTING  
Before performing any of the corrections in this Troubleshooting Chart, refer to the appropriate information contained in this  
Manual or the Engine Owners Manual for the correct safety precautions and servicing procedures. Contact your local autho-  
rized Engine Service Dealer for engine service. Contact your local authorized dealer for service problems with the machine.  
PROBLEM  
POSSIBLE CAUSE  
CORRECTION  
Engine does not start.  
1. Spark plug wire disconnected.  
2. Defective or incorrectly gapped spark plug.  
3. Fuel tank empty.  
1. Reconnect wire.  
2. Inspect/replace spark plug.  
3. Add fuel.  
4. Dirty carburetor or fuel line.  
5. Dirty air cleaner.  
6. Carburetor out of adjustment.  
7. Engine flooded.  
8. Engine Throttle Lever in incorrect position.  
9. Stale gasoline.  
10. Defective Engine Throttle Lever.  
11. Dirt or water in fuel tank.  
4. Clean carburetor or fuel line.  
5. Clean or replace.  
6. Adjust carburetor. See Engine Service Dealer.  
7. Wait several minutes before starting.  
8. Move Throttle Lever to FAST position.  
9. Drain old fuel and add fresh fuel.  
10. See Engine Service Dealer.  
11. See Engine Service Dealer.  
Engine runs poorly.  
1. Bad spark plug.  
2. Dirty air filter.  
1. Inspect/replace spark plug.  
2. Clean or replace.  
3. Carburetor out of adjustment.  
4. Stale fuel.  
5. Dirt or water in fuel tank.  
6. Engine cooling system clogged.  
3. Adjust carburetor. See Engine Service Dealer.  
4. Drain and replace fuel mixture.  
5. See Engine Service Dealer.  
6. Clean fins.  
Engine overheats.  
1. Engine cooling system clogged.  
2. Carburetor out of adjustment.  
1. Clean air cooling areas and behind debris shield.  
2. Adjust Carburetor. See Engine Service Dealer.  
Engine does not shut off.  
1. Throttle control misadjusted.  
1. See Engine Service Dealer.  
.
Poor mowing performance.  
1. Line length is too short or too long.  
1. Adjust line length to 18" long. When less  
than 1/2 this length, replace the line.  
2. Adjust cutting height to approximately 1/3  
of the length of the grass.  
2. Cutting height is too high or low for height  
of grass being cut.  
3. Engine not set at FAST speed.  
3. Move Engine Throttle Lever to FAST (Rabbit).  
Trimmer/Mower vibrates.  
1. Trimming head mounting bolt loose.  
2. Line lengths are substantially different.  
3. Loose nuts or bolts.  
1. Tighten bolt.  
2. Adjust lines to approximately equal lengths.  
3. Check all bolts and nuts, including engine bolts.  
4. Replace broken part.  
4. Broken spindle head or trimmer head.  
Trimmer head does not  
retain line.  
1. Incorrect line installation for mowing conditions.  
1. See Changing Trimmer Lines in Section 5.  
Trimmer Head does not  
retain height setting.  
1. Head bolts may be loose.  
2. Head is worn.  
1. Tighten head bolts to 75 in/lbs.  
2. Replace head assembly.  
Electric Starter does not  
start engine (electric start  
models only).  
1. Wires to battery unconnected.  
2. Battery not charged.  
3. Broken wire in wiring harness.  
4. Malfunctioning starter motor.  
1. Reconnect wires.  
2. Charge battery.  
3. Replace wiring harness.  
4. Contact local engine dealer.  
Battery does not charge  
during engine operation  
(electric start models).  
1. Broken wire in engine recharging circuit.  
2. Malfunctioning engine recharging system.  
3. Dead battery.  
1. See Engine Service Dealer.  
2. See Engine Service Dealer.  
3. Replace battery.  
Battery charger does not  
charge battery (electric  
start models).  
1. Broken battery lead.  
2. Broken battery charger wire.  
3. Dead battery.  
1. Replace battery lead.  
2. Replace battery charger.  
3. Replace battery.  
17  
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Parts List  
Models 52057 & 52058  
DRAWING NO. 1  
1
2
8
7
4
3
23  
22  
9
5
10  
6
11  
24  
20  
5
6
25  
21  
5
5
14  
13  
15  
14  
17  
12  
5
17  
16  
17  
19  
18  
5
18  
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Models 52057 and 52058  
Parts List  
PARTS LIST DRAWING NO. 1  
Ref. # Part #  
Description  
Qty.  
Ref. # Part #  
Description  
Qty.  
1
2
1917765  
1918082  
1904401  
1915290  
Debris Guard ............................................ 1  
Decal-Logo (B) ......................................... 1  
Decal-Logo (A) ......................................... 1  
Push-in Fastener....................................... 5  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
1918115  
Decal-Warning.......................................... 1  
1917144001 Hood Bracket............................................ 2  
1186389  
1917574  
1768194  
1917154  
1917155  
1909647  
1915268  
Flange Lock Nut, 1/4-20 ........................... 2  
Belt Guide................................................. 1  
Hex Hd. Screw, 3/8-16 x 1-1/2 ................. 3  
Deflector Flap............................................ 1  
Rod........................................................... 1  
Battery (A) ................................................ 1  
Battery Pad (A) ......................................... 1  
3
4
5
6
7
8
9
10  
11  
12  
1917407001 Debris Guard Support............................... 1  
1754128  
1915320  
*
1904511  
1917727  
1100243  
1100009  
1918228  
Hex Flange Screw, 1/4-20 x 3/4................ 8  
Spacer ...................................................... 2  
Engine....................................................... 1  
Decal-Hot Surface Warning ...................... 1  
Engine Pulley............................................ 1  
Spring Lock Washer ................................. 1  
Hex Hd. Screw, 3/8-24 x 1, Grade 5 ......... 1  
Deck (Incl. Ref. 13)................................... 1  
1915204001 Battery Clamp (A) ..................................... 1  
90063  
1918055  
96520  
Hex Flange Screw (A), 5/16-18 x 1........... 2  
Wire Harness (A)...................................... 1  
Ignition Key (A)......................................... 2  
(A) Model 52058  
(B) Model 52057  
Order parts from your local authorized engine dealer. Refer to engine  
for model/type number.  
*
19  
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Parts List  
Models 52057 & 52058  
DRAWING NO. 2  
See DRAWING  
NO. 3  
1
2
3
7
8
9
6
10  
1
4
See DRAWING  
NO. 1  
3
19  
18  
11  
2
20  
12  
23  
21  
PARTS LIST DRAWING NO. 2  
22  
24  
13  
Ref. # Part #  
Description  
Qty.  
18  
1
2
3
4
6
7
8
9
10  
11  
12  
13  
14  
1917778  
Wheel/Tire Assembly..............................  
Locking Retaining Ring ..........................  
Flat Washer ............................................  
Axle........................................................  
Self-Tap Screw, 5/16-18 x 2...................  
Cap Plug.................................................  
Hex Lock Nut, 1/2-13 .............................  
Belleville Washer....................................  
Hardened Washer...................................  
V-Belt .....................................................  
Spindle Head Adapter (Incl. Bearing) .....  
Spindle Shaft..........................................  
Spindle Head Assembly (Incl. Bearing,  
Insert, and Refs. 16, 17, 18)...............  
Trimmer Head Assembly (Incl. Ref. 27) .  
2
2
2
1
2
1
1
1
1
1
1
1
25  
1917593  
1917775  
1917258  
1918069  
1917588  
1734514  
9928  
1917745  
1917579  
1918246  
1917581  
1918329  
14  
26  
15  
27  
See ACCESSORIES  
AND KITS  
16  
1
1
1
1
3
1
1
1
1
1
1
1
1
1
17  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
1918393  
18  
1915220001 Wear Cup ...............................................  
1917599  
1724491  
1917573  
1910849  
1917746  
1917589  
1910857  
1917572  
1910855  
1186393  
1918332  
Square Washer.......................................  
Self-Tap Screw, 5/16-18 x 3/4................  
Cable Bracket .........................................  
Idler Spring ............................................  
Flat Washer ............................................  
Control Cable - Trimmer Head ...............  
Button Hd. Screw, 3/8-16 x 1-1/2...........  
Idler Arm................................................  
Idler Pulley .............................................  
Flange Lock Nut, 3/8-16.........................  
Rubber Shim Kit (2 shims per kit)..........  
20  
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Models 52057 and 52058  
Parts List  
DRAWING NO. 3  
PARTS LIST DRAWING NO. 3  
Ref. # Part #  
Description  
Qty.  
4
1
1
2
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
1918283  
1915889  
1918304  
Upper Handlebar (Incl. Refs. 2 & 3).......  
DecalBail Engage/Disengage ................  
DecalThrottle .......................................  
1
1
1
1
1
2
1
1
1
1
1
1
3
2
1
2
11  
1918070001 Control BailTrimmer Head ...................  
1917589  
1908677  
Cable AssemblyTrimmer Head .............  
Bushing..................................................  
6
2
10  
1749977001 Cable Bracket .........................................  
1983658  
1185814  
1918081  
1100807  
1110106  
1763682  
1100799  
Hex Hd. Screw, 1/4-20 x 1-1/8...............  
Hex Flange Lock Nut, 1/4-20..................  
Throttle Lever & Cable Assembly ...........  
Hex Hd. Screw, 1/4-20 x 2 .....................  
Hex Lock Nut, 1/4-20 .............................  
Cable Tie.................................................  
Hex Hd. Screw, 5/16-18 x 1-1/2.............  
12  
3
6
8
5
9
7
1917145001 Handlebar Support ................................  
1732499  
Hex Lock Nut, 5/16-18 ...........................  
13  
14  
ACCESSORIES AND KITS  
13  
1
2
14  
16  
3
4
15  
13  
Ref. # Part #  
Description  
Qty.  
1
2
1904476  
1904477  
Trimmer String Kit, .155" diameter line  
(24 pieces) ........................................... N/I  
Trimmer String Kit, .130" diameter line  
(24 pieces) ........................................... N/I  
3
4
1917598  
1768449  
Safety Goggles..........................................  
Battery Charger (for electric start model) .  
1
1
N/I Not included with unit, order separately.  
21  
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CUSTOMER SERVICE INFORMATION  
Customer Service and Technical Service  
Owner Registration Card  
If you have questions or problems with the  
unit, contact your local dealer or call or write  
to the factory. (When calling or writing, pro-  
vide the model/serial number of the unit.)  
Please fill out and mail the enclosed owner  
registration card. The purpose of this card is  
to register each unit at the factory in order to  
keep the owner informed with informational  
bulletins and safety literature.  
MAIL  
MAIL  
Replacement Parts  
Factory specified replacement parts are  
available from your authorized dealer or  
directly from the factory. When ordering  
parts, be sure to provide the following:  
Warranty Service  
The warranty statement is included in the units literature  
package.  
Model/Serial Numbers of unit.  
Part number of the part needed.  
Part description.  
Model/Serial Numbers  
A Model Number / Serial Number decal is located on the side  
of the deck. For ready reference, record these numbers in the  
spaces below.  
Quantity needed.  
NOTE: All replacement parts must conform to our rigid quality  
specifications. Although some parts we provide may vary  
slightly in shape, color or texture from the original parts, any  
variations will not affect the fit or performance of these parts  
on your unit.  
Model Number:  
Serial Number:  
Engine Service and Repair  
For engine service or repair, contact your nearest authorized  
engine dealer (look in the Yellow Pages under Engines–  
Gasoline). The engine is warranted by  
the engine manufacturer. Any unautho-  
rized work performed on the engine dur-  
ing the warranty period may void this  
warranty. For complete details on the  
engine warranty, refer to the Engine  
IMPORTANT:  
Left and right sides of the unit are determined by standing  
behind the unit, in the operators position, and facing in the  
direction of forward travel.  
NOTICE:  
Owners Manual.  
We reserve the right to change specifications, add  
improvements or discontinue the manufacture of any of our  
equipment without notice or obligation to purchasers of our  
equipment.  
Authorized Dealer Information  
If you purchased your unit from an authorized dealer, record  
the dealers address and phone number below for ready  
reference:  
WARNING  
Dealer Name:  
Address:  
We urge using only genuine replacement parts, which  
meet all the latest requirements. Replacement parts man-  
ufactured by others could present safety hazards, even  
though they may fit on the unit.  
Phone:  
For customer assistance, contact your nearest authorized dealer or:  
GARDEN WAY INCORPORATED 1 Garden Way Troy, New York 12180  
Customer Service: 1-800-437-8686 Technical Service: 1-800-520-5520 Parts Service: 1-800-648-6776  
FAX: (518) 391-7332 WEB SITE: www.troybilt.com  
Outside the United States and Canada:  
Customer Service: (518) 391-7007 Technical Service: (518) 391-7008 Parts Service: (518) 391-7006 FAX (518) 391-7332  
Form 1905525 (4/00)  
Printed in U.S.A.  
© 2000 Garden Way Incorporated  
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