Safety Instructions & Operator’s Manual for
EUROPEAN
21” STEEL DECK
WALK MOWERS
SERIES 17
PROPELLED MODELS
EP2167517BV
ERP2167517BV
MODEL NUMBER EXPLANATION
E
P
21
675
17
BV
MODEL DESIGNATION
SELF-PROPELLED
CUTTING WIDTH
ENGINE DESIGNATION
SERIES DESIGNATION
ENGINE HORSE POWER
E – European Model
R – Recycling Model
P – Self Propelled Model
17 - Series Designation
B – Briggs & Stratton
V – Overhead Valve
21 – 21” Cutting Width
675 – 6.75 HP (Engine Horse Power)
Thank you for buying a SNAPPER Product! Before operating your Walk Behind, read this manual carefully and pay
particular attention to the “IMPORTANT SAFETY INSTRUCTIONS” on Pages 2 & 3. Remember that all power
equipment can be dangerous if used improperly. Also keep in mind that SAFETY requires careful use in accordance
with the operating instructions and common sense.
COPYRIGHT © 2002
SNAPPER INC.
ALL RIGHTS RESERVED
MANUAL No. 7-4937 (I.R. 6/07/02)
IMPORTANT SAFETY INSTRUCTIONS
OPERATION
MAINTENANCE AND STORAGE
1. DO NOT put hands or feet near or under
rotating parts. Keep clear of discharge area
while engine is running.
1. DO NOT store mower or fuel container inside
where fumes may reach an open flame, spark or
pilot light such as in a water heater, furnace,
clothes dryer or other gas appliance. Allow
engine to cool before storing machine in an
enclosure. Store fuel container out of reach of
2. STOP engine when crossing gravel drives,
walks, or roads, and under any conditions
where thrown objects might be a hazard.
3. Mow only in daylight or good artificial light.
4. DO NOT operate mower while under the
influence of alcohol or drugs.
5. After striking a foreign object or if mower
vibrates abnormally, STOP the engine,
disconnect and secure spark plug wire. Inspect
the mower for any damage and repair the
damage.
children in
building.
a
well ventilated, unoccupied
2. Keep mower and engine free of grass, leaves or
excess grease to reduce fire hazard and engine
overheating.
3. When draining fuel tank, drain fuel into an
approved container outdoors and away from
open flame.
6. DO NOT mow near drop offs, ditches or
embankments. Operator could lose footing or
balance.
4. Keep all bolts, especially blade bolts, nuts and
screws properly tight. Check that all cotter pins
are in proper position.
7. STAY ALERT for holes and other hidden
hazards. Tall grass can hide obstacles. Keep
away from ditches, washouts, culverts, fences
and protruding objects.
8. DO NOT mow on wet grass. Always be sure of
your footing. Keep a firm hold on the handle
and walk, never run. Slipping could cause
injury.
9. DO NOT leave the machine with the engine
running. STOP BLADE and STOP ENGINE
before leaving the operators position for any
reason.
10. Before cleaning, repairing or inspecting make
certain engine, blade and all moving parts have
STOPPED. Disconnect and secure spark plug
wire away from plug to prevent accidental
starting.
5. Always provide adequate ventilation when
running engine. Engine exhaust gases contain
carbon monoxide, a deadly poison.
6. Service engine and make adjustments only
when engine is stopped. Removed spark plug
wire from spark plug and secure wire away from
spark plug to prevent accidental starting.
7. DO NOT change engine governor speed
settings or overspeed engine.
8. Check grass bag assembly frequently for wear
or deterioration to avoid thrown objects and
exposure to moving parts. Replace with new
bag if loose seams or tears are evident. Replace
slider or bag adapter if broken or cracked.
9. Mower blades are sharp and can cut. Wrap the
blades or wear heavy leather gloves and use
CAUTION when handling them.
11. STOP engine and wait until the blade comes to
complete STOP before removing grass bag
and/or clearing grass.
10. DO NOT test for spark by grounding spark plug
next to spark plug hole; spark plug could ignite
gas exiting engine.
12. DO NOT operate mower without the entire grass
catcher or guards in place. DO NOT point
discharge at people, passing cars, windows or
doors.
13. Slow down before turning.
14. Watch out for traffic when near or crossing
roadways.
11. Have machine serviced by an authorized
SNAPPER dealer at least once a year and have
the dealer install any new safety devices.
12. Use only genuine SNAPPER replacement parts
to assure that original standards are
maintained.
15. DO NOT operate engine in enclosed areas.
Engine
exhaust
gases
contain
carbon
monoxide, a deadly poison.
3
TABLE OF CONTENTS
IMPORTANT SAFETY INSTRUCTIONS..............................................2 - 3
TABLE OF CONTENTS ............................................................................ 4
SECTION 1 - FAMILIARIZATION ............................................................. 5
SECTION 2 - OPERATING INSTRUCTIONS.........................................6-9
Pre-start Checklist ............................................................................................... 6
Starting & Stopping Engine & Blades................................................................ 6
Starting & Stopping Wheel Drive ....................................................................... 7
Handle Height Adjustment.................................................................................. 7
Cutting Height Adjustment ................................................................................ .7
Recycling Operation............................................................................................ 8
Installation of Grass Catcher.............................................................................. 8
Installation of Discharge Deflector & Recycling Cover ................................... 9
SECTION 3 - MAINTENANCE INSTRUCTIONS ...............................10-11
Change Engine Oil............................................................................................. 10
Check Transmission Grease ....................................................................... 10-11
Check Mower Blade........................................................................................... 11
Check Engine Drive Belt ................................................................................... 11
Check Transmission Poly-V Belt...................................................................... 11
Service - Annually.............................................................................................. 11
Engine.............................................................................................................. 11
Air Filter........................................................................................................... 11
Engine Oil........................................................................................................ 11
Storage Procedure............................................................................................. 11
SECTION 4 - ADJUSTMENTS AND REPAIR....................................12-18
Mower Blade Replacement ............................................................................... 12
Blade Sharpening ......................................................................................... 12-13
Wheel Drive Control Adjustment...................................................................... 13
Driven and Drive Disc Service.......................................................................... 14
Cleaning Drive Disc and Driven Disc ........................................................... 14
Drive Spring Repair/Replacement ................................................................ 14
Driven Disc Adjustment............................................................................ 14-15
Driven Disc Replacement ......................................................................... 15-16
Driven Disc Bearing Replacement................................................................ 16
Hex Shaft Bearing Replacement ................................................................... 17
Belt Service ........................................................................................................ 17
Engine Drive Belt Replacement ............................................................... 17-18
Transmission Poly-V Belt Replacement....................................................... 18
TROUBLESHOOTING ............................................................................ 19
SERVICE SCHEDULE ............................................................................ 20
Maintenance/Replacement Parts...................................................................... 20
DECAL IDENTIFICATION..................................................................21-22
WARRANTY............................................................................................ 23
IMPORTANT
The figures and illustrations in this manual are provided for reference only and
may differ from your specific model. Contact your Snapper dealer if you have
questions.
4
Section 1 - FAMILIARIZATION
ENGINE SPEED CONTROL
FAST
BLADE
WHEEL DRIVE
CONTROL
CONTROL
SLOW
GROUND SPEED
CONTROL
ROPE
START
HANDLE
FUEL FILLER
CAP
ENGINE
SPEED
CONTROL
ENGINE PRIMER
OIL FILL CAP
AND DIPSTICK
HANDLE
KNOB
GRASS
BAG
GRASS BAG
ADAPTOR
FRONT HEIGHT
ADJUSTMENT
LATCHES
FIGURE 1.1
1.1 INTRODUCTION
1.2 NOMENCLATURE
This manual has been prepared for the operators of
the SNAPPER WALK BEHIND MOWERS. Its
purpose, aside from recommending operating and
routine service requirements, is to promote safety
through the use of accepted operating practices.
Read, Understand and Follow the “IMPORTANT
SAFETY INSTRUCTIONS” on Pages 2 & 3 of this
manual and all safety messages on the mower and
attachments before operating the mower.
The nomenclature drawing above, Figure 1.1, shows
the essential parts of the SNAPPER WALK BEHIND
MOWERS. It is recommended that all operators of
the mower become thoroughly familiar with the
controls, parts and operation of the mower before
operating. Specific details involving the engine are
found in the separate engine owner’s manual. Study
these manuals before operating and keep both
handy for future reference.
5
Section 2 - OPERATING INSTRUCTIONS
2.2 STARTING & OPERATION
2.1 PRE-START CHECK LIST
2.2.1. ENGINE & BLADE
(Primer Models)
1. Move engine speed control to the “Fast” (Rabbit)
position. See Figure 2.3.
Make the following checks and perform the service
required before each start-up.
2.1.1. Check guards, deflectors, grass bag, adapter
and covers to make sure all are in place and securely
tightened.
NOTE: Stop the engine (and blade) by releasing the
2.1.2. Check blade control and wheel drive control
to insure they work freely. See Figure 2.1.
blade control.
BLADE
CONTROL
BLADE
CONTROL
ROPE
START
HANDLE
WHEEL DRIVE
CONTROL
ENGINE SPEED
CONTROL –
SHOWN IN “FAST”
POSITION
FIGURE 2.3
FIGURE 2.1
2. Push primer bulb three times to start a cold
engine. NOTE: Primer should not be required to
restart a warm engine. See Figure 2.4
3. Pull blade control against handle.
4. Pull rope start handle to crank engine.
5. After engine starts, allow a brief warm-up until
engine runs smooth.
2.1.3. Check cutting height. Adjust to desired
height.
2.1.4. Check engine oil and add oil as needed to bring
level up to the full mark. Refer to Engine Owner’s
Manual for oil specifications. See Figure 2.2.
ENGINE PRIMER
FIGURE 2.4
FIGURE 2.2
2.1.5. Add fuel to tank after pushing the mower
outside where fumes can safely dissipate. Make
sure cap is tightened after refueling. Refer to Engine
Owners Manual for specifications.
2.1.6. Clean exterior surfaces of cutting deck and
engine of any accumulation of spilled fuel, dirt,
grass, oil, etc. Keep engine air intake screen and
cooling fins clear at all times.
6
Section 2 - OPERATING INSTRUCTIONS
2.2.2. PROPELLING MOWER
2. Move upper mower handle up or down until the
desired position is achieved.
3. Tighten the lower nuts on each lower handle to
maintain desired position.
(Self Propelled Models Only)
1. Start engine. Refer to Section “Starting &
Operation”.
2. Move ground speed control to the desired speed
position. See Figure 2.5.
3. Move wheel drive control against handle to
engage wheel drive and propel mower forward.
Forward speed can be adjusted while the mower is
moving by changing position of the ground speed
control. See Figure 2.5.
WARNING
STOP engine and mower blade by releasing the
blade control before adjusting cutting height or
handle height.
2.5 CUTTING HEIGHT ADJUSTMENT
1. Pull the height adjusting latch outward and move
to desired cutting height. See Figure 2.7.
ENGAGE
GROUND
SPEED
CONTROL
SHOWN IN
FIRST/SLOW
LOWEST CUTTING
1
LATCH
HEIGHT
WHEEL
DRIVE
FIRST
SIXTH
CONTROL
1
2
3
4
HIGHEST
CUTTING
HEIGHT
5
FIGURE 2.5
6
6
2.3 STOPPING
Stop engine and blade by releasing the blade
control. Stop forward motion of mower by releasing
the wheel drive control.
FIGURE 2.7
2.4 HANDLE HEIGHT ADJUSTMENT
The height of the mower handle can be adjusted as
follows:
2. Set all wheels at the same cutting height. The
highest cutting position is Notch 6. The lowest
cutting position is Notch 1. See Figure 2.8.
1. Loosen the lower nuts on each lower handle as
shown in Figure 2.6.
HIGHER
LATCH
POSITIONS
LOWER
HANDLE
LOWER
CUTTING HEIGHT SETTINGS
LOOSEN LOWER
NUTS ON EACH
LOWER HANDLE
FIGURE 2.8
FIGURE 2.6
7
Section 2 - OPERATING INSTRUCTIONS
STEP 2: Install grass catcher by sliding connector
over flange of adapter. Attach grass bag hooks over
middle handle cross bar. See Figure 2.10.
WARNING
DO NOT attempt any maintenance, adjustments or
service with engine and blade running. STOP engine
and blade. Disconnect spark plug wire and secure
away from spark plug. Engine and components are
HOT. Avoid serious burns, allow sufficient time for
all components to cool.
2.6 RECYCLING OPERATION
(Optional accessory on some models)
NOTE: For best recycling results, cut up to a maximum
of 1/3 of grass blade length and recycle ONLY when
grass is dry.
1. Set all wheels in the highest cutting position
(Notch 6).
2. Move engine speed control to “FAST” (Rabbit)
position.
3. Move ground speed control to slowest speed
setting.
4. Proceed mowing slowly. If grass is very dense,
lower each rear wheel latch one notch lower than
the front wheel latches to improve recycling
performance.
2.7 INSTALLATION of GRASS CATCHER
(Optional accessory on some models)
STEP 1: Install the grass bag adapter and secure to
the side and top of the deck with the two nuts
provided on the machine. Slot in front edge of adapter
must be under nut located on top of deck. See Figure
2.9.
FIGURE 2.10
WARNING
DO NOT operate without entire Grass Catcher or
guard in place. Grass Catcher components are
subject to deterioration during normal use. Inspect
frequently and replace worn or damaged
components immediately.
SECURE ADAPTER
TO DECK WITH NUTS
SECURE
WITH NUTS
ADAPTER
FIGURE 2.9
8
Section 2 - OPERATING INSTRUCTIONS
WARNING
WARNING
DO NOT attempt any maintenance, adjustments or
service with engine and blade running. STOP engine
and blade. Disconnect spark plug wire and secure
away from spark plug. Engine and components are
HOT. Avoid serious burns, allow sufficient time for
all components to cool.
DO NOT operate without entire Grass Catcher or
guard in place. Grass Catcher components are
subject to deterioration during normal use. Inspect
frequently and replace worn or damaged
components immediately.
2.9 INSTALLATION of RECYCLING COVER
(Optional accessory on some models)
2.8 INSTALLATION of DISCHARGE DEFLECTOR
(Optional accessory on some models)
It will be necessary to remove bag adapter and
grass bag or discharge deflector before installing
recycling cover. See previous section for
instructions. Install the recycling cover and secure
to the side and top of the deck with the two nuts
provided on the machine. Slide top portion of cover
under nut secured to the deck. See Figure 2.13.
1. Remove grass bag from handle and grass bag
adapter. See Figure 2.11.
2. Remove front and rear nuts attaching grass bag
adapter to deck. See Figure 2.11.
3. Install discharge deflector and secure to deck
using hardware removed in Step 2. Slot in front
edge of discharge deflector must be under nut as
shown and both bolts protruding through holes in
the side of the deflector. See Figure 2.12.
RECYCLING
COVER
REMOVE GRASS BAG
FROM HANDLE AND
BAG ADAPTER
REMOVE RECYCLING
COVER TO THE DECK
REMOVE THE TWO NUTS
FIGURE 2.13
REMOVE NUTS
FIGURE 2.11
SLIDE
DEFLECTOR SLOT
UNDER NUT
INSTALL
DISCHARGE
DEFLECTOR
INSTALL
NUTS
FIGURE 2.12
9
Section 3 – MAINTENANCE
3.1 INTRODUCTION
3.2.2. CHECK GREASE LEVEL IN TRANSMISSION
1. Remove transmission fill plug. Roll machine
forward or backward while looking down into plug
hole.
2. If liquid grease IS NOT visible on the input gear
(the small gear below the plug hole), add an
amount, to cover gear, of Snapper “00” grease. See
Figure 3.2.
To retain the quality of the mower, use genuine
SNAPPER replacement parts only. Contact a local
SNAPPER dealer for parts and service assistance.
For the correct part or information for a particular
mower, always mention model and serial number.
3.2 SERVICE - AFTER FIRST 5 HOURS
3.2.1. CHANGE ENGINE OIL
WARNING
DO NOT attempt any maintenance, adjustments or
service with engine and blade running. STOP engine
and blade. Disconnect spark plug wire and secure
away from spark plug. Engine and components are
HOT. Avoid serious burns, allow sufficient time for all
components to cool.
FILL PLUG
1. Refer to Engine Manual for proper oil
specifications and procedures.
2. For simplest/cleanest oil change, loosen lower
handle wing nuts and stand mower up on lower
handle as shown in Figure 3.1. Drain oil through
dipstick tube into a container.
FIGURE 3.2
NOTE: Snapper “00” Grease (Part No. 2-9443) is available
at your SNAPPER dealer.
(Continued on Next Page)
FIGURE 3.1
IMPORTANT: Drain fuel tank before tipping
mower.
10
Section 3 – MAINTENANCE
3.2.2. CHECK GREASE LEVEL IN TRANSMISSION
(Continued from previous page)
3.2.4. CHECK ENGINE DRIVE BELT
1. Visually check engine drive belt for cracking,
fraying, severed or belt strands exposed. If worn or
damaged, replace belt before operating mower.
NOTE: Do not spill grease or oil on surface of drive
disc. See Figure 3.3.
3. Reinstall transmission plug.
4. Check grease level after each 25 hours of
operation.
3.2.5. CHECK TRANSMISSION POLY-V BELT
1. Visually check poly-v belt for cracking, fraying,
severed or belt strands exposed. If worn or
damaged, replace belt before operating mower.
KEEP DRIVE DISC CLEAN !
RECOMMENDED
BLADE RETAINING
CAP SCREW
TORQUE VALUE
SHOULD BE
40 FT. LBS.
FIGURE 3.4
3.3 SERVICE - ANNUALLY
Perform all maintenance as described in the “Service
Schedule” section of this manual.
3.3.1. Engine
FIGURE 3.3
WARNING
Service engine according to engine owner’s manual.
3.3.2. Air Filter
Refer to engine owner’s manual for service instructions.
3.3.3. Engine Oil
Refer to engine owner’s manual for service
instructions.
DO NOT attempt any maintenance, adjustments or
service with engine and blade running. STOP engine
and blade. Disconnect spark plug wire and secure
away from spark plug. Engine and components are
HOT. Avoid serious burns, allow sufficient time for
all components to cool. Wear heavy leather gloves
when handling or working around cutting blades.
Blades are extremely sharp and can cause severe
injury.
3.4 STORAGE PROCEDURE
Refer to the Engine Owner’s Manual for directions regarding
engine storage preparations. Prepare the mower for “end of
season” storage as follows:
1. Drain fuel from fuel tank and let engine run until all fuel is
out of the carburetor.
2. Disconnect and remove the spark plug wire away
from spark plug before any other preparations are
made!
IMPORTANT: DO NOT tip machine with carburetor or
spark plug down. Oil from crankcase will saturate the air
filter and cause the engine to be hard to start or not start
at all. If contamination does occur, the air filter will have to
be replaced.
3. Tape all openings closed to prevent spraying water into
exhaust or air intakes during washing.
3.2.3. CHECK MOWER BLADE
1. Disconnect spark plug wire and secure end
away from plug.
2. Tilt mower up on its rear wheels for access to
the blade cap screw. Do not tilt mower with spark
plug or carburetor down. See Figure 3.4.
3. Check torque of blade retaining cap screw.
Recommended torque should be 40 ft. lbs. See
Figure 3.4.
4. Tilt mower up on its rear wheels and thoroughly clean the
underside of the deck. Do not tilt mower with spark plug or
carburetor down. Scrape away any accumulation of grass
with a putty knife and or wire brush.
5. Lubricate all exposed metal with a light coating of oil to
prevent corrosion.
6. On self-propelled models disconnect transfer rod clip and
remove ground speed control rod before folding handles.
7. Loosen handle knobs. Carefully fold the handles forward,
“flexing” the control cables to prevent cable damage.
8. Store the mower in a shed or other dry area, protected
from weather.
4. Check blade for sharpness, wear and damage.
Refer to Section “Blade Wear Limits”.
11
Section 4 - REPAIR & ADJUSTMENTS
WARNING
WARNING
DO NOT use a cutting blade that shows signs of
excessive wear or damage. Refer to Section
“MOWER BLADE REPLACEMENT” for proper blade
inspection and service procedures.
DO NOT attempt any maintenance, adjustments or
service with engine and blade running. STOP engine
and blade. Disconnect spark plug wire and secure
away from spark plug. Engine and components are
HOT. Avoid serious burns; allow sufficient time for
all components to cool. Wear heavy leather gloves
when handling or working around cutting blades.
Blades are extremely sharp and can cause severe
injury.
4.1.2. BLADE SHARPENING
1. Disconnect spark plug wire and secure end away
from plug.
IMPORTANT: Drain fuel before tipping mower. DO
NOT tip machine with carburetor or spark plug down. Oil
from crankcase will saturate the air filter and cause the
engine to be hard to start or not start at all. If
contamination does occur, the air filter will have to be
replaced.
4.1 MOWER BLADE REPLACEMENT
4.1.1. STANDARD BLADE WEAR LIMIT
1. Inspect blade frequently for signs of excessive
wear or damage. See Figure 4.1.
NEW BLADE
2. Tilt mower up on its rear wheels. Do not tilt
mower with spark plug or carburetor down.
3. Remove blade. See Figure 4.3.
WEAR LIMIT
(NOTCH STARTS)
MAKE SURE THAT
BLADE HUB IS
SEATED
BETWEEN
FLANGES
DANGEROUS CONDITION !
DO NOT USE ON MOWER !
REPLACE WITH NEW
BLADE
HUB
BLADE.
FLANGE
FIGURE 4.1
BLADE
4.1.1.A. NINJA BLADE WEAR LIMIT
1. Inspect blade frequently for signs of excessive
wear or damage. See Figure 4.2.
CONE WASHER
(Concave Side Up)
WEAR LIMIT.
NEW BLADE
CRACKS OR
CAPSCREW
NOTCHES
BEGIN TO
APPEAR ON TIP
FIGURE 4.3
DANGEROUS !
DO NOT USE A BLADE IN
THIS CONDITION !
FIGURE 4.2
2. Replace the blade if it is badly chipped, bent,
noticeably out of balance or has cracks or notch in
either tip. See Figure 4.1 & 4.2. Replace with new
blade.
12
Section 4 - REPAIR & ADJUSTMENTS
CLUTCH CABLE
VINYL SPRING
WARNING
DO NOT attempt any maintenance, adjustments or
service with engine and blade running. STOP engine
and blade. Disconnect spark plug wire and secure
away from spark plug. Engine and components are
HOT. Avoid serious burns, allow sufficient time for all
components to cool.
1/16” TO 1/8”
CLEARANCE
CLUTCH CABLE
EYE
UPPER
SPRING
SPRING HOOK
LOWER
SPRING
4.1.2. BLADE SHARPENING
4. Sharpen blade on a grinding wheel at an angle of
22 to 28 degrees. DO NOT sharpen blade beyond
original cutting edge. See Figure 4.4.
DO NOT SHARPEN
BEYOND ORIGINAL
CUTTING EDGE
CABLE
CLUTCH CABLE EYE
22-28º
SPRING
BLADE TIP
END VIEW OF
BLADE ASSEMBLY
ORIGINAL CUTTING EDGE
FIGURE 4.5
2. To adjust, unhook upper spring from cable eye
and rotate spring in direction required to extend or
shorten spring length.
3. Rehook upper spring to cable eye and check
clearance. Repeat procedure if required.
FIGURE 4.4
5. Check blade for balance. If necessary, correct
balance by grinding heavy end of blade.
6. Reinstall blade. See Figure 4.3. Check torque of
blade retaining cap screw. Recommended torque
should be 40 ft. lbs.
NOTE: The vinyl spring cover should be kept over the
spring at all times except for adjustments.
4. If the wheel drive control fails to return quickly to
the “OFF” position when released, check for binding
at the cable holdings located on the side of the right
handle. The upper clip should be located 2” below
the upper knob; the lower clip should be 4” above
the lower knob. The cable should slide freely with
the clips installed at these locations.
4.2 WHEEL DRIVE CONTROL ADJUSTMENT
1. The wheel drive control is properly adjusted
when there is 1/16” to 1/8” clearance between the
inside of the spring hook and the inside of the clutch
cable eye with the wheel drive control released. See
Figure 4.5.
13
Section 4 - REPAIR & ADJUSTMENTS
USE
NEEDLE
NOSE
PLIERS TO
INSTALL
DRIVE
WARNING
DO NOT attempt any maintenance, adjustments or
service with engine and blade running. STOP engine
and blade. Disconnect spark plug wire and secure
away from spark plug. Engine and components are
HOT. Avoid serious burns, allow sufficient time for all
components to cool.
SPRING
4.3 DRIVEN AND DRIVE DISC SERVICE
If the mower does not propel itself properly, See
Figure 4.6. Check for the following problems:
DRIVE
SPRING
DRIVEN DISC &
RUBBER RING
POLY-V
BELT
DRIVE
SPRING
ENGINE
DRIVE
BELT
DRIVE
DISC
FIGURE 4.7
4.3.3. DRIVEN DISC ADJUSTMENT
If the drive disc and driven disc are clean and the
mower drive is still slipping, adjust the driven disc as
follows:
1. Place ground speed control in the number six
speed position. See Figure 4.8.
FIGURE 4.6
MOVE GROUND
SPEED CONTROL TO
SIX-SPEED POSITION
1. Grease on drive disc causing slippage.
2. Broken or disconnected drive spring.
3. Driven disc is out of adjustment.
4. Driven disc rubber is worn - does not contact
drive disc properly.
SIXTH SPEED
POSITION
5. Worn Poly-V Belt or engine drive belt.
SIXTH
NOTE: If any of the above (1 thru 5) are causing
problems, service as follows:
4.3.1. Cleaning Drive Disc & Driven Disc.
If oil or grease on the drive disc or driven disc is
causing slippage, clean discs as follows:
FIRST
SPEED
FIRST
1. Wipe away any oil or grease with a clean cloth.
2. Use either an approved grease solvent or hot,
soapy water to clean drive disc or driven disc.
3. Rinse components with clean water.
4. Dry components with a clean cloth.
FIGURE 4.8
4.3.2. Drive Spring Repair/Replacement
If drive spring is loose, reconnect as shown in Figure
4.7. If spring is broken, replace with new spring.
IMPORTANT: If machine drive system continues
slipping see Trouble Shooting section.
14
Section 4 - REPAIR & ADJUSTMENTS
WARNING
1/8” MEASUREMENT TO
OUTSIDE EDGE OF DRIVE
DISC
DO NOT attempt any maintenance, adjustments or
service with engine and blade running. STOP engine
and blade. Disconnect spark plug wire and secure
DRIVE
DISC
SLIDE DRIVEN
away from spark plug. Engine and components are
HOT. Avoid serious burns, allow sufficient time for
all components to cool.
DISC ASSEMBLY
TOWARD OUTSIDE
EDGE
4.3.3. DRIVEN DISC ADJUSTMENT
TRANSFER
ROD
(Continued From Previous Page)
2. Remove driven disc spring from driven disc
assembly. Loosen connector hex nut. See Figure 4.9.
CONNECTOR
HEX NUT
OUTSIDE
EDGE
DRIVEN DISC
ASSEMBLY
CONNECTOR
DRIVE
DISC
FIGURE 4.10
4.3.4. Replacing Rubber Driven Disc
If the rubber is badly chunked or worn it must be
replaced. Install new Driven Disc as follows:
1. Using a small flat blade screwdriver, free the clip
from the transfer rod. Then remove the transfer rod
from the clip and the speed control rod. See Figure
4.11.
DRIVEN DISC
SPRING
TRANSFER
ROD
CONNECTOR
CONNECTOR
HEX NUT
CONNECTOR
CLIP
FIGURE 4.9
3. Slide driven disc assembly over to 1/8” from
outside edge of drive disc. Maintaining the 1/8”
measurement, remove any looseness from the
linkage. This can be done by holding the transfer rod
and applying pressure to the left (as viewed from
operators position). Then retighten the connector hex
nut securely. See Figure 4.10. Move ground speed
control to the first speed position, then back to the
sixth speed position. Recheck the 1/8” measurement
described previously. Reinstall driven disc spring to
driven disc assembly.
TRANSFER
ROD
SPEED CONTROL
ROD
FIGURE 4.11
(Continued On Next Page)
15
Section 4 - REPAIR & ADJUSTMENTS
4.3.5. Replacing Bearing In Driven Disc Assembly
WARNING
IMPORTANT: The bearing, on these “M” series
machines, is staked into the thrust plate. The bearing will
have to be driven out with a mallet and a large punch. A
new bearing with four retaining screws will have to be
purchased to replace existing bearing.
DO NOT attempt any maintenance, adjustments or
service with engine and blade running. STOP engine
and blade. Disconnect spark plug wire and secure
away from spark plug. Engine and components are
HOT. Avoid serious burns, allow sufficient time for
all components to cool.
If the driven disc bearing requires replacement,
remove the driven disc assembly and replace
bearing as follows:
1. Using a small flat blade screwdriver, free the clip
from the transfer rod. Then remove the transfer rod
from the clip and the speed control rod. See Figure
4.11.
2. Using needle nose pliers, unhook the drive
spring and slide the driven disc assembly off the
hex shaft. See Figure 4.12.
3. Remove both snap rings that secure rubber
driven disc hub to thrust plate. See Figure 4.13.
4. Slide the rubber driven disc hub out of the
bearing.
4.3.4. Replacing Rubber Driven Disc
(Continued from previous page)
2. Using needle nose pliers, unhook the drive
spring and slide the driven disc assembly off the
hex shaft. See Figure 4.12.
3. Remove the two snap rings which secure the
rubber driven disc to the driven disc assembly. See
Figure 4.13.
4. Install new rubber driven disc onto driven disc
assembly with retaining rings.
5. Reverse above procedures for reassembly and
installation of driven disc assembly.
5. Drive out existing bearing.
6. Install new bearing and secure to thrust plate
with four retaining screws. Tighten screws securely.
7. Reassemble components in reverse order.
DRIVE DISC
ASSEMBLY
INSTALL NEW
DRIVEN DISC
SNAP
RINGS
FIGURE 4.13
FIGURE 4.12
16
Section 4 - REPAIR & ADJUSTMENTS
4.4.1. Engine Drive Belt Replacement
(Stretch Type Belts)
1. Empty the fuel tank.
2. Note the belt routing in Figure 4.15. There is no
idler pulley on these models to disconnect. See Figure
4.15.
WARNING
DO NOT attempt any maintenance, adjustments or
service with engine and blade running. STOP engine
and blade. Disconnect spark plug wire and secure
away from spark plug. Engine and components are
HOT. Avoid serious burns, allow sufficient time for
all components to cool.
DRIVE BELT
ENGINE DRIVE
PULLEY
4.3.6. Replacement Of Bearing On Pulley End Of
Hex Shaft
To replace the bearing on the pulley end of the hex
shaft, proceed as follows:
1. Hold the hex shaft with an adjustable wrench
held next to the pulley.
DRIVE DISC
2. Remove the 3/8” hex lock nut, which is located
on the outside of the right wheel bracket. See
Figure 4.14.
3. Remove holder, O-ring and bearing.
4. Install new bearing.
5. Carefully install new O-ring over the outside of the
new bearing.
6. Install bearing holder and secure with screws.
7. Install 3/8” hex lock nut.
TOP VIEW OF STRETCH TYPE BELT ROUTING
FIGURE 4.15
BALL BEARING
“O” RING
3/8”
LOCK NUT
BALL BEARING
HOLDER
FIGURE 4.14
(Continued On Next Page)
4.4 BELT SERVICE
On self-propelled mowers, the engine belt transmits
power from engine to drive disc. The drive disc
powers the poly-v belt, which engages the
transmission that powers the rear wheels. Should
these belts become worn, they could cause slippage,
which would impair mower performance. The
condition of the engine belt and poly-v belt should be
checked after every 25 hours of mower operation.
17
Section 4 - REPAIR & ADJUSTMENTS
9. Loop the belt around the pulley on the bottom of
the drive disc.
WARNING
DO NOT attempt any maintenance, adjustments or
service with engine and blade running. STOP engine
and blade. Disconnect spark plug wire and secure
away from spark plug. Engine and components are
HOT. Avoid serious burns, allow sufficient time for all
components to cool.
10. Reinstall drive disc and retaining hardware.
IMPORTANT: 1) The square shoulder of the drive
disc bolt must fit into the square hole of the bushing.
2) The square end of bushing must fit into the
bracket slot.
11. Reinstall belt cover and tighten bolts securely.
12. Reinstall blade hub and cutter blade.
Recommended torque for blade cap screw is 40 ft. lbs.
4.4.1. Engine Drive Belt Replacement
(Stretch Type Belts)
(Continued From Previous Page)
4.4.2. Transmission Poly-V Belt Replacement
1. Remove the driven disc. Refer to Section on
“Replacing Driven Disc Rubber Ring” for procedure.
2. Note the routing of the old belt around the three
pulleys before removing it. See Figure 4.17.
3. Place new Poly-V Belt over end of hex shaft and
onto driven pulley.
IMPORTANT: Drain fuel before tipping mower. DO
NOT tip machine with carburetor or spark plug down. Oil
from crankcase will saturate the air filter and cause the
engine to be hard to start or not start at all. If
contamination does occur, the air filter will have to be
replaced.
4. Work belt onto top of idler pulley.
3. Remove the driven disc.
“Replacing Rubber Driven Disc Ring” for driven disc
assembly removal procedure.
4. Tilt mower up on its rear wheels and remove
blade and blade hub. Assistance from another
person may be necessary to hold mower in the tilted
position.
5. Hold the slotted end of the drive disc bolt with a
screwdriver and remove the nut and internal tooth
lock washer. See Figure 4.16.
Refer to Section
5. Twist belt sideways and pull it upward between
the differential bracket and drive pulley and then
down into the pulley groove. Make sure the Poly-V
Belt is above belt guide. See Figure 4.17.
IDLER
DIFFERENTIAL
PULLEY
BRACKET
DRIVE
PULLEY
POLY-V
BELT
6. Remove the belt cover located under deck.
7. Lift the drive disc up and remove worn belt.
8. Loop one end of new belt over engine pulley and
insert the other end through slot in deck. See Figure
4.15.
HEX SHAFT
PULLEY POSITION
DRIVEN
PULLEY
BELT GUIDE
DRIVE DISC
ROUTING OF POLY-V BELT
FIGURE 4.17
SLOT IN END
BUSHING
OF DRIVE DISC
BOLT
BOLT RETAINER
DECK BRACKET
(PARTIALLY SHOWN)
INTERNAL TOOTH
LOCKWASHER
NUT
FIGURE 4.16
18
TROUBLESHOOTING
PROBLEM
PROBABLE CAUSE
CORRECTIVE ACTION
1. Fill fuel tank with fresh fuel.
Engine Will Not Start 1. Fuel tank empty.
Using Recoil Starter 2. Engine needs choking or priming.
2. Choke/Prime. Check Engine Manual for
Instructions.
3. Spark plug wire disconnected.
3. Place spark plug wire onto spark plug.
Engine Stalls or Stops 1. Blade control is released or is not being held securely 1. Blade control should be held securely against
After Running
against handle.
handle at all times during operation of mower.
2. Fuel tank empty.
2. Fill with fuel to proper level.
3. Engine air pre-cleaner and or air cleaner dirty.
4. Spark plug defective or gap set improperly.
5. Water, debris or stale fuel in fuel system.
3. Clean free of all debris.
4. Service spark plug.
5. Drain and clean fuel system.
1. Clean or replace filters.
Engine Loses Power 1. Engine air pre-cleaner or air cleaner dirty
2. Spark plug faulty.
2. Service spark plug.
3. Water, debris or stale fuel in fuel system.
3. Drain and clean fuel system.
Excessive Vibration 1. Damaged, out of balance or bent mower blade.
2. Loose blade components.
1. Service mower blade.
2. Service and tighten loose parts.
3. Replace air lifts. Tighten to proper torque.
4. Replace belt.
3. Loose or missing air lift (if equipped).
4. Lumpy or frayed belt
Mower Will Not Move
Loss Of Traction
(Self-Propelled Models)
1. Contact authorized SNAPPER dealer.
2. Replace traction drive belt.
3. Clean or replace driven disc.
1. Damaged transmission
2. Traction drive belt requires replacement
3. Driven disc slipping
Cutting Grass
Improperly
1. Cutting height too low or high.
2. Engine speed too slow.
1. Adjust cutting height.
2. Move engine speed control to “FAST” position.
3. Move ground speed control to a slower speed.
4. Adjust height of cut with height adjust levers.
5. Adjust height of cut with height adjust levers.
6. Sharpen cutting edges or replace blade.
1. Move engine speed control to “FAST” position.
2. Move ground speed control to a slower speed.
3. Mow when grass is dry.
3. Forward ground speed too fast.
4. Terraced cut, side to side.
5. Excessive deck pitch, front to rear.
6. Cutting blade dull or damaged.
1. Engine speed too slow.
Poor Grass Discharge
2. Forward speed too fast.
3. Grass is wet.
4. Excessively worn or damaged blade.
5. Build up of grass clippings and debris under deck.
6. Improper blade installed on deck.
7. Blade installed improperly on deck.
1. Leaking engine case.
4. Service mower blade.
5. Clean deck.
6. Install proper SNAPPER blade.
7. Install blade properly.
Oil Leaking
1. Contact authorized SNAPPER dealer.
2. Check and tighten drain plug.
3. Make sure dip stick or oil filler cap is securely
in place.
19
SERVICE SCHEDULE
ITEM
SERVICE PERFORMED
REF.
Page 6
EACH
USE
5
HRS
25
HRS
50
HRS
100
HRS
EACH
SEASON
Engine Oil
Check Oil Level
X
Initial Oil Change
Periodic Oil Change
Page 10
Page 11
X
X*
Air Pre-Cleaner Clean Sponge Element
Engine Manual
& Page 11.
Engine Manual.
X**
X**
Air Cleaner
Spark Plug
Clean or Replace
Replace
Engine Manual.
Engine Manual
Page 17-18
X
Engine Cooling Clean Shroud & Fins
X**
System
Drive Belts
Mower Blade
Mower Deck
Check For Wear And
Tension
Check For Wear, Damage Page 11-12
& Replacement
X
X
X
X
X
X
Clean Debris
Page 11
Accumulation
Transmission
Grease
Check Grease Level
Pages 10-11
X
X
Periodic Grease Check
Pages 10
Drive Disc
Check for Wear Damage Page 14-18
& Replacement
X
*Change oil every 25 hours when operating under heavy load or high temperatures.
**Clean more often under dusty conditions or when air debris is present
4.5
MAINTENANCE/REPLACEMENT PARTS
MAINTENANCE PARTS
Engine Speed Control (Briggs Engines)
Blade Control Cable
Clutch Pull Cable
2-9036
7-2933
7-2932
1-9795
1-7168
2-6691
2-6407
1-2354
4-6784
5-7787
06136
Cutter Blade (European Models Only)
Cutter Blade (Mulching)
Cutter Blade (Not Air Lift Compatible)
Cutter Blade (Ninja - Quad Edge)
Wheel Drive Pulley to Transmission Pulley Belt
Engine to Drive Disc Belt
Rubber Drive Tire
Parts Manual for 21” Steel Deck Walk Behind Mower
Series 17
20
DECAL IDENTIFICATION
KEEP CHILDREN
AND OTHERS OUT
OF MOWING
SAFETY ALERT
SYMBOL. OBSERVE
AND FOLLOW ALL
SAFETY
INSTRUCTIONS.
READ, UNDERSTAND AND FOLLOW INSTRUCTIONS AND WARNINGS IN OPERATOR’S
MANUALS, AND ON THE MOWER, ENGINE AND ATTACHMENTS BEFORE OPERATING.
(1) WARNING INSTRUCTIONS.
(2) WARNING: Do Not operate without entire Grass
Catcher or Guard in place.
(6) THROTTLE CONTROL: Indicates direction to
increase engine RPM (Hare), decrease engine RPM
(Tortoise), and direction to choke.
(3) PRIME: Use for initial engine starting. Read and
follow
engine
operating
and
maintenance
instructions. Push bulb to prime engine.
(7) SPEED SELECTOR: Shows direction of motion
and the ability to select one of six ground speeds by
rotating the lever.
(4) SPARK PLUG: Warns of potential electrical shock
from spark plug while engine is running.
(5) AIR FILTER: Indicates location of engine air filter.
To service the filter, read and follow the engine
operating and maintenance instructions.
21
DECAL IDENTIFICATION
(11) INJURY WARNING: Indicates possible severe
injury from rotating cutting blades.
(8) OPERATOR PRESENCE CONTROL (OPC):
Arrow points to the OPC bail. When bail is rotated
rearward, the engine may be started and will run as
indicated by the engine with rotating arrow. With
the engine running, the blade is rotating as
indicated by the cut grass symbol. When the bail is
released and rotates forward, the engine will stop.
(12) CE DECAL: Indicates European Certification.
(9) CLUTCH: Located on the plastic grip of the
traction control lever. Moving the lever toward the
handle engages the traction clutch and forward
motion starts. When the lever is released, the clutch
disengages and forward motion stops.
(13) LWA-100: Indicates European noise level
certification.
EUROPEAN PERFORMANCE:
Maximum level of vibration measured at the
operators hand 19.1 m/sec2
(10) SHIFT WARNING: Located on the middle
handle. Indicates that the engine must be stopped
before shifting ground speed control.
22
3 YEAR LIMITED WARRANTY
For three (3) years from purchase date for the original purchaser's residential, non-commercial use, SNAPPER, through
any authorized SNAPPER dealer will replace, free of charge (except for taxes where applicable), any part or parts found
upon examination by the factory at McDonough, Georgia, to be defective in material or workmanship or both.
For ninety (90) days from purchase date for the original purchaser's commercial, rental, or other non-residential use,
SNAPPER, through any authorized SNAPPER dealer will replace, free of charge, any part or parts found upon
examination by the factory at McDonough, Georgia, to be defective in material or workmanship or both.
All transportation costs incurred by the purchaser in submitting material to an authorized SNAPPER dealer for
replacement under this warranty must be paid by the purchaser.
This warranty does not apply to engines and their components, and batteries, as these items are warranted separately.
This warranty does not apply to parts that have been damaged by accident, alteration, abuse, improper lubrication,
normal wear, or other cause beyond the control of SNAPPER. This warranty does not cover any machine or component
part that has been altered or modified changing safety, performance, or durability.
Batteries have a one (1) year prorated warranty period with free replacement if required during the first ninety (90) days
from the original purchase date. SNAPPER will not be responsible for any installation cost incurred. The battery
warranty only covers original equipment batteries and does not cover damage to the battery or machine caused by
neglect or abuse, destruction by fire, explosion, freezing, overcharging, improper maintenance, or use of improper
electrolyte.
There is no other express warranty.
DISCLAIMER OF WARRANTY
Implied warranties, including those of merchantability and fitness for a particular purpose, are limited to three
(3) years from purchase date for the original purchaser's residential or other non-commercial use, and ninety
(90) days from purchase for the original purchaser's commercial, rental or other non-residential use, and to the
extent permitted by law, any and all implied warranties are excluded. This is the exclusive remedy. Liabilities
for consequential damages, under any and all warranties are excluded.
Some states do not allow limitations on how long an implied warranty lasts, or do not allow the exclusion or
limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
WARNING: THE USE OF REPLACEMENT PARTS OTHER THAN GENUINE SNAPPER PARTS MAY IMPAIR THE
SAFETY OF SNAPPER PRODUCTS AND WILL VOID ANY LIABILITY AND WARRANTY BY SNAPPER
ASSOCIATED WITH THE USE OF SUCH PARTS.
IMPORTANT: Please fill out the attached SNAPPER Product Registration Card immediately and mail to:
Snapper’s Product Registration Center, P.O. Box 1379, McDonough, Georgia 30253
23
Safety Instructions & Operator’s Manual for
EUROPEAN
21” STEEL DECK
WALK BEHIND MOWERS
SERIES 17
IMPORTANT
Snapper products are built using engines that meet or exceed all applicable emissions requirements on the
date manufactured. The labels on those engines contain very important emissions information and critical
safety warnings. Read, Understand, and Follow all warnings and instructions in this manual, the engine
manual, and on the machine, engine and attachments. If you have any questions about your Snapper
product, contact your local authorized Snapper dealer or contact Snapper Customer Service at Snapper,
McDonough, GA. 30253. Phone: (1-800-935-2967).
WARNING
BATTERY POSTS, TERMINALS AND RELATED ACCESSORIES CONTAIN LEAD AND LEAD COMPOUNDS,
CHEMICALS KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CANCER AND BIRTH DEFECTS OR
OTHER REPRODUCTIVE HARM. WASH HANDS AFTER HANDLING.
WARNING
ENGINE EXHAUST, SOME OF ITS CONSTITUENTS, AND CERTAIN VEHICLE COMPONENTS CONTAIN OR
EMIT CHEMICALS KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CANCER OR OTHER
REPRODUCTIVE HARM.
COPYRIGHT © 2002
SNAPPER INC.
ALL RIGHTS RESERVED
MANUAL No. 7-4937 (I.R. 6/07/02)
24
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