Swisher Lawn Mower ZT1436 ZT17542B ZT1842 ZT20050 User Guide

swisherinc.com  
OWNER’S  
MANUAL  
MODEL NO.  
ZT1436  
ZT17542B  
ZT1842  
ZT20050  
“Z” SERIES  
ZERO TURN HYDROSTATIC DRIVE  
IMPORTANT  
Read and follow all  
Safety Precautions  
and Instructions  
before operating this  
equipment.  
Assembly  
Operation  
Service and Adjustment  
Repair Parts  
Rev.02.19.2003  
1602 CORPORATE DRIVE, P.O. BOX 67, WARRENSBURG, MISSOURI 64093  
PHONE 660-747-8183 FAX 660-747-8650  
Made In The  
Manufacturing quality lawn care equipment since 1945  
USA  
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ONZTR03  
Thank you for choosing Swisher’s ZTR Mower. Before operating your  
mower, please read, understand and follow all of the safety precautions and  
other instructions explained in this manual . As with all power equipment,  
lawnmowers can be potentially dangerous if improperly used.  
SAFETY PRECAUTIONS & DECALS  
This Safety Alert Symbol indicates important messages in this  
manual. When you see this symbol, carefully read the message that  
follows and be alert to the possibility of personal injury.  
Read this manual completely. This machine can amputate hands and feet, and  
throw objects. Failure to observe the following safety instructions could result in  
serious injury or death.  
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Read the manual. Learn to operate this machine safely.  
Always disconnect the spark plug wire and place the wire where it cannot contact  
the spark plug, to prevent accidental starting the engine when setting up, transporting,  
adjusting or making repairs.  
Keep all shields and guards in place.  
Understand the speed, steering and stability of this machine. Know the positions  
and operations of all controls before you operate this machine. Check all of the  
controls in a safe area before starting to work with this machine.  
Allow only responsible adults who are familiar with these instructions to operate this  
machine. Never allow children to operate this machine.  
Clear the area of objects such as rocks, toys, wire, etc. that can be picked up and  
thrown by the blade.  
Be sure the area is clear of other people before mowing. Be aware of the mower  
discharge direction and do not point at anyone. Stop the machine if anyone enters the  
mowing area. Children are often attracted to the machine and the mowing activity.  
Never assume that children will remain where you last saw them. Keep children  
under the watchful care of another responsible adult.  
No riders!  
Do not put hands or feet near or under rotating parts. Keep clear of the discharge  
opening at all times.  
Do not mow in reverse. Always look down and behind before and during  
backing.  
SAFETY PRECAUTIONS & DECALS  
The operation of any cutter can encounter foreign objects to be thrown into the  
eyes, resulting in severe eye damage. Always wear certified safety glasses or  
wide-vision safety goggles for over spectacles before staring any cutting machine  
and while operating such a machine.  
The operation of any cutter produces sound waves that are damaging to the  
human ear. Ear protection is recommended.  
4
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CAUTION!  
Tragic accidents can occur if the operator is not alert to the presence of  
children. Children are often attracted to the machine and the mowing  
activity. Never assume that children will remain where you last saw  
them.  
SLOPE OPERATION!  
Do not operate on slopes greater than 15 degrees.  
Use extra caution when mowing on slopes. Operate self-propelled units  
up and down slopes. There is a significant risk of overturns when  
operating across slopes. If you feel uneasy on a slope then do not mow it.  
•Turn off the blades when not mowing. Before leaving the machine, turn off the blades  
and stop the engine.  
•Watch for traffic when operating near or crossing roadways.  
•Do not operate the mower if it has been dropped or damaged in any manner or if the  
mower vibrates excessively. Excessive vibration is an indication of damage.  
Repair mower as necessary.  
•Dress properly. Do not operate the mower when barefoot or wearing open sandals.  
Wear only solid shoes with good traction when mowing.  
•Never allow operation by untrained persons.  
•Do not operate the machine while under the influence of alcohol or drugs.  
•Operate self-propelled machines up and down slopes. There is significant risk of  
overturns when operating across slopes. Avoid sudden turns. Operate walk-behind  
machines across slopes. There is a significant risk of slipping under a walk-behind  
machine when operating up and down slopes.  
• Never tamper with safety devices. Check their proper operation regularly.  
•Stop and inspect the equipment if you strike an object. Repair, if necessary, before  
restarting. Never make adjustments or repairs with the engine running. Mower blades  
are sharp and can cut. Wrap the blades or wear gloves, and use extra caution when  
servicing them. Do not operate at too fast a rate.  
• Do not mow close to ditches, embankments or drop-offs. An edge could collapse. A  
mower wheel over the edge could suddenly turn the unit over.  
•Do not mow on wet grass if possible. Wet grass causes reduced traction and could cause  
sliding. Do not park on a slope unless absolutely necessary.  
• Always chock or block wheels and set parking brake if parked on slope.  
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SAFETY PRECAUTIONS & DECALS  
WARNING: Hydraulic fluid can cause severe burns and penetrate skin causing  
severe injury or death.  
Do not step on mower deck when operating, dismounting or mounting the  
mower.  
Never push or pull unit with another vehicle. Transmission damage will  
occur.  
When transporting be sure to secure mower frame to transport vehicle.  
NEVER tie  
down to moving parts or linkages which may become damaged or come loose.  
NEVER transport mower while engine is running.  
NEVER add fuel or remove gas cap while engine is running or hot.  
NEVER store unit near an open flame such as a water heater or furnace.  
NEVER modify or allow anyone to modify or alter any components or safety  
devices.  
ALWAYS keep mower clean and free of debris and grass clippings.  
NEVER reverse battery cables. Electric shock will occur.  
ALWAYS keep battery away from open flame and sparks. Explosive gases  
from  
battery can cause serious injury or death.  
ALWAYS wear safety glasses and protective gear when servicing battery.  
Battery fluid contains sulfuric acid. Contact with battery acid on skin or clothing  
can cause severe chemical burns.  
NEVER tip battery beyond a 45 degree angle in any direction.  
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SAFETY PRECAUTIONS & DECALS  
Danger/Warning Decal – OD99155  
Ignition/PTO/Throttle Decal – OD99154  
Ignition/PTO/Throttle Decal 50” Mower Only – OD99157  
Parking Brake Decal – OD99152  
Flying Debris Decal – OD53  
No Step Decal – OD11  
Triangle Danger Decal – OD55  
DECALS NOT SHOWN  
36” Decal – OD108 & OD112  
42” Decal (17.5 HP Engine) – OD109 & OD113  
50” Decal – OD111 & OD115  
Height of Cut Decal - OD99153  
(18 HP Engine) – OD110 & OD114  
Height Indicator Decal - OD99151  
Swisher Flag USA Decal – OD39  
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OPERATING YOUR NEW ZTR MOWER (cont.)  
CONTROLS  
STARTING MOWER  
TO START: Position steering handles outward to  
neutral locked position. Engage parking brake.  
Extend throttle to full choke position*. Start ignition  
and slide throttle lever back to full throttle position.  
Allow engine to warm up for 1 minute. Release  
parking brake  
OPERATOR PRESENCE SYSTEM: This  
mower is equipped with an operator’s presence  
system. Any attempt to leave the seated position  
with the engine running, without first disengaging  
the PTO switch and placing the steering levers in the  
neutral position, will cause the engine to shut off.  
* Model ZT20050 has a remote choke assembly  
located on the right fender, behind the rider.  
WARNING: Do not operate the machine unless  
the Operator’s Presence System is functioning as  
described.  
FORWARD MOVEMENT: To move the mower  
forward gently push both steering levers forward equal  
distance from the neutral position. The further you  
move the levers forward the faster you will travel.  
CAUTION steering levers have quick response  
timing.  
PARKING BRAKE: Always set the parking  
brake before starting. The parking brake is located  
on the drivers left hand side. Engage the parking  
brake by pushing the lever rearward and down until  
lever locks into position. Be sure to release parking  
brake before operating the machine.  
BACKWARD MOVEMENT: To move the  
mower backwards, gently pull back on the steering  
levers the same distance from neutral. The further you  
pull back the faster you will travel. NOTE it is  
normal for the reverse speed to be less than the  
forward for easier turning.  
IGNITION: The ignition switch is located on the  
drivers right hand side toward the rear of the seat.  
The ignition switch has three positions: OFF, ON,  
START.  
TURNS: For left turn, move the right lever farther  
forward then the left. For right turn, move the left  
lever farther forward than the right. To obtain a tight  
turning radius, GENTLY reverse one lever and push  
the other lever forward. CAUTION: Aggressive  
turns can damage lawns. Do not make turns with the  
inside wheel stopped. It it better to keep both wheels  
turning slightly.  
THROTTLE: The throttle\choke control is  
located on the drivers right hand side towards the  
front of the seat. For maximum performance and  
battery charging, operate mower at full throttle.  
When starting a cold engine, place lever forward in  
the full choke position. After start up, move throttle  
rearward to full throttle position. Move lever all the  
way to the rear for lowest setting before shutting off  
engine. The 50” Model has a choke mounted on the  
right side fender for easier cold weather starts.  
DECK HEIGHT ADJUSTMENT: To raise the  
mower deck up and down, simply rotate the lever  
located in front of the seat above the floor plate.  
Clockwise raises the deck. Counterclockwise lowers  
the deck. The deck is adjustable from 1 ½” to 3 ½”.  
PTO SWITCH: The PTO, or Power Take Off  
switch is used to engage the blades of the mower.  
When the PTO switch is pulled out the blades will be  
engaged. When the PTO switch is pushed in the  
blades will be disengaged. The PTO switch must be  
pushed in to complete the Operator’s Presence  
System to start engine.  
For best performance, grass over 6 ½” in height should  
be mowed once in the highest position and once again  
at desired cut height.  
ENGAGING BLADES: Operator must be seated  
for operation of blades. With engine to full throttle  
position, pull UP on PTO switch located between the  
throttle and the key switch. To disengage blades, push  
DOWN on PTO switch.  
NEUTRAL LOCK: The steering levers must be  
in the outward and locked position for the mower  
to start. ( See page 12)  
STOPPING ENGINE: Place both levers in the  
outward neutral locked position. Push PTO switch in  
to disengage. Place throttle lever to lowest setting and  
let idle for 30 seconds. Turn off ignition key and  
engage parking brake.  
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OPERATING YOUR NEW ZTR MOWER (cont.)  
MOWING  
WARNING: Do not operate mower at too fast of a rate. Sudden movements forward  
and backward at fast speeds can cause accidents resulting in personal injury  
Start out slowly moving steering levers SLOWLY forward and backward until you  
learn to operate the unit. NOTE: This mower has been designed to be very  
maneuverable. Practice in open, flat areas is extremely necessary to become  
comfortable and efficient with the controls.  
BEGIN TO MOW: Before starting the engine, set the desired deck height.  
Start the mower engine.  
Position the throttle lever about halfway and engage PTO switch. Reposition throttle  
lever to full throttle position.  
Move steering levers forward to begin mowing.  
CAUTION: Always make sure the deck is not plugged with grass or other debris.  
Failure to do this will cause damage to the PTO belt.  
STOPPING: Hydrostatic mowers use hydrostatic braking through the transmissions.  
To slow or stop the unit move the steering levers to the neutral position  
STOPPING THE ENGINE: Move the throttle lever to slow position, allow engine  
to idle for 30 seconds and turn ignition to off position. CAUTION: Failure to  
position the ignition key to any position except off will cause discharge of the battery.  
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MAINTENANCE SCHEDULE  
INSPECT BEFORE EACH USE  
-Loose fasteners: Be sure all fasteners are at proper torque. Especially guards and  
blades.  
-Parking brake: If brake does not keep unit from rolling, brake must be adjusted  
or repaired.  
-Tires: Always check and maintain proper tire pressure (See tire sidewall for  
recommendation). Check for damage due to sharp rocks, objects or stumps.  
-Operator Presence System: The engine should not start unless the PTO switch  
is disengaged and the control levers are locked in the neutral position. Any attempt to  
leave the seated position with the PTO switch engaged will kill the engine.  
-Oil level: To prevent damage to engine, always check and maintain proper oil  
level. Never operate engine with the oil level below the add mark on the dipstick. Be  
sure to tighten the dipstick securely after inspection. Refer to engine manual for  
additional information.  
INSPECT EVERY 8 HOURS  
-Proper cleaning: Remove any build up of grass, dirt or debris with a brush or  
cloth from engine, battery, deck and and transaxles. Do not use harsh chemicals or  
abrasives. Keep all painted surfaces and wheels free of oil and gasoline. Protect all  
painted surfaces with an automotive wax. Do not spray unit with water or store  
outdoors unprotected. Water can invade sealed bearings and reduce component life.  
Do not spray water onto hydrostatic transmissions. This will  
cause injection of water into the unit causing failure.  
-Air filter: The engine will not run properly with a dirty or damaged air filter.  
Check filter before starting the engine. Check for buildup of dirt or debris. Replace if  
bent, clogged, or damaged.  
-Oil level: To prevent damage to engine, always check and maintain proper oil  
level. Never operate engine with the oil level below the add mark on the dipstick. Be  
sure to tighten the dipstick securely after inspection.  
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10  
MAINTENANCE SCHEDULE  
INSPECT EVERY 25 HOURS  
-Lubrication: Grease all pivot points with a high temp grease  
-Battery, check and clean: Keep battery terminals clean and tight. Periodic  
charging will extend its life. Clean terminals with a wire brush and coat with a  
petroleum jelly.  
-Change engine oil and filter: Use only quality detergent oil. See engine manual  
for instructions. Select viscosity grade according to your expected environmental  
temperature.  
-Blades: Best results will come from sharp blades. Replace if bent, damaged or worn.  
-Engine air screen: Screen must be clean and free of debris for proper engine  
cooling. Clean with a brush or cloth. Do not spray with pressurized water.  
-Muffler: Inspect for damage or corrosion. Keep free of grass or debris to prevent  
fire.  
INSPECT CHECK EVERY 100 HOURS  
-Clean engine cooling fins: Clogged cooling fins can damage engine due to  
overheating.. Keep fins and external surfaces of the engine clean.  
-Replace air filter: The engine will not run properly with a dirty or damaged air  
filter. Check filter before starting the engine. Check for buildup of dirt or debris.  
Replace if bent, clogged, or damaged. See engine manual for detailed instructions.  
-Replace spark plugs: See engine manual for detailed instructions.  
INSPECT EACH SEASON  
-Belts: Check belts for wear and deterioration. See service and adjustments.  
-Spark plug: See engine manual for detailed instructions.  
-Replace in-line fuel filter: Replace every season.  
INSPECT BEFORE STORAGE  
-Change engine oil and filter: See engine manual for detailed instructions.  
-Lubrication: Grease all pivot points with a high temp grease.  
-Check battery: Keep battery terminals clean and tight. Periodic charging  
will extend its life. Clean terminals with a wire brush and coat with a petroleum  
jelly.  
-Loose fasteners: Be sure all fasteners are at proper torque, especially guards and  
blades.  
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11  
SERVICE / ADJUSTMENTS  
CAUTION: Before performing any service or adjustments do as follows:  
1. Turn off PTO switch.  
2. Position unit on smooth flat surface.  
3. Place steering levers in outward, neutral-locked position.  
4. Turn ignition key “OFF” and set parking brake.  
5. Wait for all moving parts to stop and disconnect spark plug wire.  
TRACKING  
Adjustments to the unit may need to be made if the unit does not track in a straight line. The  
primary reason for the unit not tracking straight is incorrect or unbalanced tire pressure.  
Before making any adjustments first check and adjust the tire pressure. DO NOT EXCEED  
MAXIMUM RECOMMENDED TIRE PRESSURE.  
ADJUST LINKAGE: Place steering levers outward locking them in the neutral position.  
Turn off engine and raise seat. Under the seat are (4) adjustment bolts. The two adjustment  
bolts toward the seat mount are adjustments for the forward travel. The two bolts toward the  
engine or are for the reverse travel. Clockwise movement for these adjustments will decrease  
or slow the travel speed of the individual side. Counterclockwise movement will increase the  
travel of the individual side. The linkage is factory set to maximum performance. Adjustment  
is made by rotating the adjustment bolt clockwise on the opposite side that the unit tracks  
toward. Adjust forward and reverse to track straight as needed. When accomplished  
adjustment to the steering levers may need to be done. This is made by loosening the the two  
bolts on the steering lever and aligning with the other. Travel of the steering levers from front  
to rear may be accomplished in the same manner.  
Neutral-Lock Position  
Steering levers out.  
Tracking Adjustment  
Diagram  
Decrease Speed  
Increase Speed  
Adjustment bolts  
Both sides  
Front of  
Mower  
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12  
SERVICE / ADJUSTMENTS  
INSTALLING THE MOWER DECK  
REMOVING THE MOWER DECK  
1.  
Be sure the cutting height lever is in the  
lowest position.  
1.  
Turn off engine and engage parking brake.  
2.  
Rotate cutting height lever  
2.  
3.  
Position mower deck under unit.  
counterclockwise to lowest cutting position.  
Install belt around mower pulley and  
electric clutch.  
3.  
4.  
Remove bolt from pickup point located at  
the front of the deck.  
4.  
Install stabilizer bars into rear hanger  
brackets through lift points and install  
cotter pins. Be sure eye bolt is between  
bracket sides.  
Remove cotter pins on rear hanger points  
and slide out stabilizer bars.Disconnect  
tension spring bolt from tension bracket.  
5.  
6.  
Remove belt from mower pulley and  
electric clutch.  
5.  
6.  
Install bolt in front hanger bracket  
passing through eyebolt in the same  
manner as rear and tighten snug.  
Slide mower deck from under unit.  
Reattach tension spring bolt and tighten.  
It is recommended to remove the  
deck to sharpen the blades.  
Remove belt  
Remove eye-bolts (2 rear & 1 front)  
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SERVICE / ADJUSTMENTS  
LEVELING THE MOWER DECK  
1.  
2.  
Position unit on a smooth level surface.  
For side to side leveling, measure the distance from the floor to the bottom edge at the  
rear of the deck. The measurement should be equal within 1/16 inch side to side.  
Adjustment can be made by loosening locking nut on rear eyebolt hangers and adjusting  
up or down as needed.  
3.  
For front to rear pitch adjustment, loosen locking nut on front eyebolt and adjust up or  
down as needed. Proper pitch measurement is 1/8” to 1/4” lower at the front of the deck.  
Front of Mower  
Distance should be  
equal on both rear sides.  
Ground  
Front of deck should be  
slightly lower.  
14  
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SERVICE / ADJUSTMENTS  
BELTS  
Clutch drive belt replacement  
1. Remove belt covers.  
2. Disconnect tension idler from tension bracket.  
3. Remove belt from mower pulley and electric  
clutch.  
Part #: 3816  
4. Install new belt onto electric clutch and mower  
pulley and check for proper routing and  
clearance.  
5. Reconnect idler tension bolt to tension bracket.  
Part #: 3752  
Transaxle belt replacement  
1.  
Remove clutch drive belt. See clutch belt  
replacement.  
2.  
3.  
4.  
Disconnect wiring from electric clutch.  
Disconnect idler spring from tension bracket.  
Remove bolt and washer from bottom of  
electric clutch and slide clutch from engine  
crankshaft, set aside.  
Part #: 3820  
5.  
6.  
7.  
Remove belt from transaxles and engine  
pulley.  
Install new belt. Check for proper routing  
and clearance.  
Reinstall electric clutch carefully aligning  
keyed portion of clutch and keyway in  
crankshaft. Reinstall bolt and washer.  
Washer is “cupped” be sure to place  
cupped” side of washer towards the clutch  
body.  
8.  
9.  
Reconnect tension idler to tension bracket.  
Reconnect wiring harness to electric clutch.  
66LR- Transmission Belt  
10.  
Reinstall clutch drive belt. See clutch belt  
replacement.  
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WIRING DIAGRAMS  
36” and 42” Mowers  
50” Mower  
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ENGINE DETAIL  
(Page 18)  
SEAT DETAIL  
(Page 20)  
STEERING  
DETAIL  
(Page 19)  
19  
2
3
FRAME DETAIL  
(Page 21 & 22)  
17  
TRANSMISSION  
IDLER DETAIL  
(This Page)  
1
18  
16  
6
4
2
5
3
Transmission Idler  
22  
7
12  
8
9
21  
20  
15  
23  
10  
24  
13  
14  
30  
23 11  
25  
MOWING  
28  
29  
DECK DETAIL  
DECK LIFT  
(Page 23, 24 & 25)  
DETAIL  
(Page 19)  
26  
3
OVERALL ASSEMBLY  
27  
Item #  
Description  
Battery Box  
Part #  
3696TK  
NB596  
NB170  
3704TK  
3695  
3644TK  
NB687  
CB58  
Item #  
20  
21  
22  
23  
24  
25  
26  
27  
Description  
Transmission Idler Arm  
1/2-13 X 3 HCC GR5 Bolt ZP  
3/8-16 X 1 1/2 HCCGR5ZP  
3/8 SAE Washer  
Part #  
1
2
3
4
5
6
7
8
9
3690TK  
NB131  
NB107  
NB272  
B27  
NB280  
NB121  
NB181  
682S  
5/16-18 X 3/4 Serr Flg Bolt  
5/16-18 Serrated Flange Nut  
Nuetral Switch Bracket Painted  
Return to Neutral Switch  
Steering Cover  
Idler Pulley OD-2.16"  
3/8-16 2-Way Lock Nut  
1/2-13 2-Way Jam Lock Nut  
5/16-18 Nyloc Nut  
3/4 Push Nut Blk Plastic  
Bearing  
28  
Clutch Rod Spring  
Caster Weldment  
5072  
29  
30  
Wire Link For Idler Arm  
5/16-18 X 1 HCC GR5 ZP  
BRS6H  
NB501  
10  
11  
1/8 X 1 Cotter Pin  
NB126  
3754  
5057  
NB645  
NB182  
3600  
3601  
2203LN  
3755  
3604  
3756  
Front Tire for 36" and 42"  
Front Tire for 50" Only  
3/8-16 X 4 HCC GR5 Bolt  
3/8-16 Nyloc Nut  
12  
13  
14  
Not Pictured  
Description  
Part #  
9043  
3720  
3804  
3803  
BHOLD  
NB250  
NB524  
3819TK  
ZTR Trans. Right- NOT FOR RE-SALE  
ZTR Trans. Left- NOT FOR RE-SALE  
Lug Nut  
Solenoid Assembly (All Models)  
Wiring Harness (36 and 42" Models Only)  
Wiring Harness (50" Models Only)  
Hour Meter (50" Models Only)  
Battery Hold Down, 15" Tarp Strap  
1/4-20 X 3/4 GR5 ZP (2)  
15  
16  
Rear Tire For 36"  
Rear Tire For 42"  
Rear Tire For 50"  
Battery 230 CCA  
17  
18  
19  
EBAT230  
3678TK  
3751  
1/4-20 Flange Nut (2)  
Hydro Release  
Spring - Interlock Switch  
Belt Snubber (50" Mower Only)  
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BLADE DRIVER  
BLADE DRIVER  
For 42 and 50” Mowers  
For 36” Mowers  
Item #  
Description  
3/4-16 2 Way Lock Nut  
1.5x.761x.098x.134 Belleville Washer  
3/4ID X 1 1/4OD 10 GA. Washer  
Blade Pulley- 5" (42" Mower Only)  
Washer For Blade Driver  
Blade Bearing  
Part #  
NB175  
AS155  
NB184  
3785  
NB179  
B98  
9076  
9057TK  
9014  
9004  
9005  
5059  
1
2
1
2
3
4
5
6
7
8
9
3 (1 Used)  
4
3
3
23  
(2 Used)  
5
6
Blade Shaft 4.25"  
Bearing Housing  
7
36" Mower - 18" Blade  
42" Mower - 20 1/2" Blade  
42" Mower - 22" Blade  
17.5" Blade for 50" Mower  
Blade Driver Assy  
1/4-20 X 3/4 GR5 ZP  
1/4-20 Nylok Nut  
3/8-24 Two Way Locknut  
Washer  
8
10  
11  
12  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
9018  
NB250  
NB180  
NB216  
B98W  
NB238  
9008  
NB607  
NB238N  
9024  
22  
22  
6
14  
13  
13  
3/8-24 X 1 Bolt  
Blade Mount Plate  
SP Washer Bellvl. PLN .413 X .945 X .118  
3/8-24 X 1 Engine Bolt Locktite  
Blade Mount Plate Spacer (36" Only)  
3/8-16 X 1 1/2 HCCGR5ZP (36" Only)  
19  
9
16  
20  
15  
20  
NB107  
21  
3/8-24 X 1 1/2 HCC GR5 ZP Locktite (36" Only) NB167N  
17  
3/8-16 2-Way Lock Nut (36" Only)  
Blade Pulley 4.5" (36" & 50" Only)  
NB280  
B4104TK  
15  
18  
24  
ENGINE SETUP  
Item #  
Description  
Part #  
24  
14 HP B&S Engine (36" Mower)  
17.5 HP B&S Engine (42" Mower)  
18 HP B&S Engine (42" Mower)  
20 HP B&S Engine (50" Mower)  
N/A  
N/A  
N/A  
N/A  
25  
26  
27  
25  
26  
27  
28  
29  
30  
5/16-18 Serrated Flange Nut  
Spacer Engine Pulley  
NB170  
BB105SL  
3753  
4258  
689S  
688ECDP  
3813  
NB699  
28  
Motor Pulley 3"  
1/4 X 1/2 Key Stock  
Engine Pulley Spacer Short .687  
Electric Clutch Drop Pulley  
Electric Clutch (50" Mower Only)  
Washer Belleville Engine Pulley  
29  
30  
31  
31  
32  
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STEERING (RIGHT)  
25  
4
6
24  
26  
27  
19 21 11  
23  
Item #  
Description  
Directional Handle Grip  
Directional Handle Weldment  
5/16-18 X 3/4 Serr Flg Bolt  
5/16-18 Serrated Flange Nut  
1/2-13 X 5 HCC GR5 ZP  
1/2 NR Mach Bushing 14 GA  
1/2 ID X 7/8 OD X 1/8 Nylon Washer  
Handle Mount Weldment Right  
Handle Mount Weldment Left  
Pivot Plate Right Weldment  
Pivot Plate Left Weldment  
1/2-13 Nyloc Jam Nut  
1/2-13 2-Way Jam Lock Nut  
Washer  
1/2-13 X 2 1/2 HCC GR5 ZP  
1/4 Rod End Male1/4-28  
1/4 Rod End Female 1/4-28  
1/4-20 Nylok Nut  
1/4-20 Flange Nut  
5/16-24 Hex Nut  
5/16-24 ZP 2-Way Lock Nut  
1/4-20 X 1 1/4 HTC GR5 ZP  
Universal Pivot Plate Weldment  
Control Card Left  
Part #  
3673  
1
2
3
4
5
6
7
8
18  
3685TK  
NB596  
NB170  
NB155  
NB177  
NB682  
3635TK  
3636TK  
3699TK  
3700TK  
NB688  
NB121  
TR150W  
NB510  
3721  
20  
12  
28  
6
29  
12  
15  
16  
1
11  
6
22  
9
14  
17  
9
10  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
8
7
13  
5
3708  
NB180  
NB524  
NB215  
NB448  
NB103  
3698TK  
3620TK  
3621TK  
3669  
NB310  
NB254  
NB190  
NB281  
3706  
4
2
3
Control Card Right  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
Tinnerman Clips 5/16-18 Heavy Duty  
1/4-20 X 3/4 SSC Plain  
5/16-18 X 1 1/2 Flge Serr. Bolt  
5/16-24 Jam Nut  
1/2-13 Nyloc Nut  
Tinnerman Clips 5/16-18  
Directional Control Linkage  
Plastic Knob- Black  
3/8-16 2-Way Lock Nut  
3/8 Hardened Washer  
3/8-16 X 1 1/4 GR5 ZP  
Height Adjust Crank  
Thrust Bearing  
1/2-13 2-Way Jam Lock Nut  
Rear Height Lifter  
DECK LIFT  
3670  
4857  
30  
NB280  
NB196  
NB618  
3710TK  
T151  
NB121  
3705TK  
NB272  
NB182  
3684TK  
3260TK  
NB501  
NB221  
3683TK  
3663TK  
34  
35  
31  
32  
3/8 SAE Washer  
3/8-16 Nyloc Nut  
33  
Rear Torsion Weldment  
Front - Back Height Link  
5/16-18 X 1 HCC GR5 ZP  
3/8-16 X 2 1/2 HCC GR5 ZP  
Front Torsion Weldment  
Lift Pivot  
41  
32  
43  
38  
37  
36  
44  
39  
40  
NOT PICTURED  
Spacer .790 OD X .540 ID X .560 LG (2)  
ES001  
31  
42  
45  
42  
31  
32  
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SEAT BASE ASSEMBLY  
1
Item #  
Description  
Seat 15" Back No Arm Rest (36" Mower Only)  
Seat 15" Back With Arm Rest (42" Mower Only)  
Seat 18" Back With Arm Rest (50" Mower Only)  
Seat Bracket  
Part #  
3790  
3791  
1
3792  
2
3
4
3807TK  
3815TK  
3609  
3
Seat Hinge  
Tapered Spring  
7
8
8
5
6
7
8
Control Cover  
Seat Mount  
3645TK  
3613C  
NB170  
NB596  
NB556  
NB252  
3809TK  
3706  
2
5/16-18 Serrated Flange Nut  
5/16-18 X 3/4 Serr Flg Bolt  
5/16 SAE Washer  
5/16-18 X 1/2 Serr. Flg Bolt  
Seat Spring Bracket  
10  
11  
4
8
9
10  
11  
12  
13  
10  
9
7
SEE CONTROL  
CARD DETAIL  
THIS PAGE  
Tinnerman Clip 5/16-18  
5/16-18 Nyloc Nut  
NB181  
Not Pictured  
Operator Presence Switch  
3798  
7
6
CONTROL CARD  
3722 ( Card for 36” & 42” Mowers)  
12  
5
3799 ( Card for 50” Mowers)  
8
15  
14  
Item #  
Description  
PTO Switch  
Key Switch  
Part #  
3605  
3623  
NB114  
3640  
3788  
14  
15  
16  
17  
18  
1/4-20 X 1/2 MSC ZP Hex Washer  
Throttle Cable Assembly (36" & 42" Mowers)  
Throttle Control 35" (50" Mower Only)  
Control Cover Instruments (Right Side)  
18  
3646TK  
19  
16  
20  
17  
FUEL SUPPLY SYSTEM  
(3259 For entire assembly)  
Item #  
Description  
Gas Cap  
Gas Tank Plastic Black  
Gas Tank Bracket  
1/4-20 X 1/2 Bolt  
Part #  
6102NC  
6102T  
3258TK  
NB109  
21  
19  
20  
21  
22  
8
7
22  
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FRAME for 36” and 42” Mowers  
5
4
5
6
27  
3
5
28  
3
1
29  
3
2
26  
7
8
3
10  
24  
25  
23  
11  
5
9
13  
30  
20  
SEE DETAIL  
NEXT PAGE  
21  
18  
3
12  
13  
31  
16  
5
13  
22  
33  
18  
32  
14  
3
5
15  
17  
19  
Item #  
Description  
Beverage Retainer  
Part #  
Item #  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
Description  
1/2-13 Nyloc Nut  
Part #  
NB281  
NB510  
3264TK  
3639TK  
3653TK  
NB558  
NB515  
3712TK  
3806TK  
3651  
3686TK  
3611TK  
3711TK  
3703TK  
NB622  
3797TK  
1
2
3
4
3643TK  
NB252  
NB170  
3742TK  
3742RTK  
3641TK  
3642TK  
NB596  
3654TK  
3719C  
5/16-18 X 1/2 Serr. Flg Bolt  
5/16-18 Serrated Flange Nut  
36" Mower Fender Left  
36" Mower Fender Right  
42" Mower Fender Left  
42" Mower Fender Right  
5/16-18 X 3/4 Serr Flg Bolt  
Fender Mount  
1/2-13 X 2 1/2 HCC GR5 ZP  
Rear Hangar Bracket  
Frame Side Weldment  
E-Brake Handle  
5/16-18 ZP 2 Way Lock Nut  
5/16-18 X 1 3/4 Flge Serr Bolt  
Transmission Fan Cover  
Trans Fan Cover Right Side  
E-Brake Side Link  
5
6
7
8
9
Seat Base Weldment  
1/4-20 X 2 1/2 HTC GR5 ZP  
1/4-20 Flange Nut  
NB163  
NB524  
Bumper Weldment  
Upper Motor Base  
Rear Cover  
Transmission Mount  
10  
Access Plate  
Access Plate Hinge  
3269  
11  
12  
13  
14  
15  
Kick Plate  
3630TK  
NB254  
3619TK  
3671C  
5/16-18 X 2 1/4 Flang Serr. GR5 ZP  
Parking Brake Weldment  
Brake Mount Plate  
Brake Assembly Cog Right Side  
Brake Assembly Cog Left Side  
5/16-18 X 1 1/2 Flge Serr. Bolt  
Height Adjust Bracket  
Height Adjust Indicator  
Front Frame Weldment  
3267TK  
3600CB-BA  
3601CB-BA  
3261TK  
Parts unique to 50” mower frame on next page.  
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BRAKE LINKAGE DETAIL (All Models)  
36  
35  
Item #  
35  
36  
37  
38  
Description  
Part #  
NB181  
NB275  
NB202  
TR148S  
T2SM  
38  
1/4-20 Nylok Nut  
5/16 SAE Washer  
5/16-18 X 1 Eye Bolt  
Spring  
3
35  
37  
39  
Spring  
39  
FRAME FOR 50” MOWER  
44  
41  
43  
42  
40  
45  
13  
Item #  
40  
41  
42  
43  
Description  
Part #  
Bumper Weldment  
Upper Motor Base  
Transmission Mount  
Choke Mount  
3778TK  
3777TK  
3787TK  
3810TK  
Not Pictured  
DESCRIPTION  
PART # QTY  
Choke Cable  
3/8 Split Lock Washer  
3/8-24 HNF ZP  
3789  
NB711  
NB456  
1
1
1
44  
50" Mower Fender Right 3783TK  
50" Mower Fender Left 3784TK  
45  
Fender Mount  
3782TK  
These parts unique to 50” mower frame only.  
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36” MOWING DECK  
14  
16  
15  
1
2
3
6
13  
4
5
11  
9
12 10  
SEE DETAIL  
Page 18  
SEE DETAIL  
THIS PAGE  
12  
11  
28  
10  
9
Item #  
Description  
Part #  
3750C  
NB596  
3743  
NB170  
3664  
8
1
2
3
4
5
Deck Weldment  
5/16-18 X 3/4 Serr Flg Bolt  
Pulley Cover  
5/16-18 Serrated Flange Nut  
Sway Bar Right  
NOT SHOWN  
Roller Bracket (28) Mounting Hardware  
7
DESCRIPTION  
5/16-18 X 3/4 Serr Flg Bolt NB596  
5/16-18 Serrated Flange Nut NB170  
PART # QTY  
2
2
Sway Bar Left  
3665  
6
7
8
9
1/8 X 1 Cotter Pin  
3/8-16 X 5 1/2 GR5 ZP  
Anti-Scalp Roller  
NB126  
NB575  
AS001  
NB181  
NB170  
3738TK  
NB596  
CH5S  
3757TK  
6030  
NB136  
NB164  
NB272  
NB198  
7509  
DECK IDLER  
5/16-18 Nyloc Nut  
5/16-18 Serrated Flange Nut  
Lift Bracket  
5/16-18 X 3/4 Serr Flg Bolt  
Chute Spring  
Grass Chute Weldement  
Grass Chute Mount  
5/16-18 X 8 1/2 HCC GR2 ZP  
3/8-16 X 3 HTC GR5 ZP  
3/8 SAE Washer  
17  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
19  
18  
27  
9
21  
20  
3/8-16 X 2 HCC GR5 ZP  
Idler Pulley  
26  
Clutch Rod Spring  
682S  
5/16-18 X 1 HCC GR5 ZP  
3/8-16 2-Way Lock Nut  
Deck Idler Weldement  
3/8-16 Nyloc Nut  
Idler Bushing  
Idler Pulley  
Front Roller Bracket Assy  
NB501  
NB280  
3744TK  
NB182  
6037  
23  
13  
22  
25  
24  
B527  
4018TK  
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14  
42” MOWING DECK  
16  
15  
1
2
3
6
13  
4
5
11  
9
12 10  
SEE DETAIL  
Page 18  
SEE DETAIL  
THIS PAGE  
12  
11  
DECK TENSIONER  
28  
10  
2
9
9
8
13  
NOT SHOWN  
Roller Bracket (28) Mounting Hardware  
7
SEE DETAIL  
THIS PAGE  
Shown Below  
4
DESCRIPTION  
PART # QTY  
5/16-18 X 3/4 Serr Flg Bolt NB596  
5/16-18 Serrated Flange Nut NB170  
2
2
Item #  
Description  
Deck Weldment  
5/16-18 X 3/4 Serr Flg Bolt  
Pulley Cover  
5/16-18 Serrated Flange Nut  
Sway Bar Right  
Part #  
1
2
3
4
5
3762C  
NB596  
3743  
NB170  
3664  
DECK IDLER  
Sway Bar Left  
3665  
17  
6
7
8
9
1/8 X 1 Cotter Pin  
3/8-16 X 5 1/2 GR5 ZP  
Anti-Scalp Roller  
NB126  
NB575  
AS001  
3808TK  
NB170  
3738TK  
NB596  
NB315  
3757TK  
6030  
NB136  
NB164  
NB272  
NB198  
7509  
19  
Seat Hinge  
5/16-18 Serrated Flange Nut  
Lift Bracket  
5/16-18 X 3/4 Serr Flg Bolt  
5/16-18 Eye Bolt  
Grass Chute Weldement  
Grass Chute Mount  
5/16-18 X 8 1/2 HCC GR2 ZP  
3/8-16 X 3 HTC GR5 ZP  
3/8 SAE Washer  
3/8-16 X 2 HCC GR5 ZP  
Idler Pulley  
Front Roller Bracket Assy  
Idler Pulley  
18  
20  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
22  
21  
23  
4018TK  
B527  
NB280  
3764TK  
NB182  
6037  
3/8-16 2-Way Lock Nut  
Deck Idler Weldement  
3/8-16 Nyloc Nut  
25  
24  
Idler Bushing  
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50” MOWING DECK  
16  
4
1
3
15  
7
SEE DETAIL  
2
5
18  
6
THIS PAGE  
17  
8
9
11  
10  
SEE DETAIL  
Page 18  
11  
14  
8
7
9
8
12  
13  
Item #  
1
2
Description  
Part #  
3766C  
3769TK  
3768TK  
NB182  
NB136  
3664  
DECK IDLER  
50" ZTR Deck Weldement  
Pulley Cover (Right Side)  
Pulley Cover (Left Side)  
3/8-16 Nyloc Nut  
5/16-18 X 8 1/2 HCC GR2 ZP  
Sway Bar Right  
Sway Bar Left  
28  
3
20  
3
4
5
29  
36  
3665  
6
7
8
9
1/8 X 1 Cotter Pin  
5/16-18 X 3/4 Serr Flg Bolt  
3/8-16 Nyloc Nut  
5/16-18 Serrated Flange Nut  
Grass Chute Spring  
Lift Bracket  
3/8-16 X 5 1/2 GR5 ZP  
Anti-Scalp Roller  
5/16-18 X 4 Carriage Bolt  
Grass Chute Mount  
Grass Chute Weldement  
3/8-16 Kep Nut  
3/8-16 X 3 HTC GR5 ZP  
3/8-16 X 1 1/4 GR5 ZP  
Pulley Brace  
3/8-16 X 3 HCC GR5 ZP  
Idler Bushing  
Idler Pulley OD-3.25"  
Idler Pulley OD-2.75"  
1/4-20 X 1 Truss Head Screw  
Spring  
Deck Idler  
3/8-24 Two Way Locknut  
3/8 SAE Washer  
NB126  
NB596  
NB182  
NB170  
CH5S  
3738TK  
NB575  
AS001  
NB101  
6030TK  
3773TK  
NB205  
NB164  
NB618  
3772TK  
NB164  
6037  
35  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
29  
30  
23  
31  
29  
28  
22  
37  
22  
21  
24  
27  
B527  
7509  
NB709  
TZ2S  
25  
3770TK  
NB280  
NB272  
NB198  
3786  
NB524  
NB180  
NB315  
NB212  
NB604  
6040TK  
21  
9
26  
32  
3/8-16 X 2 HCC GR5 ZP  
Idler Pulley  
1/4-20 Flange Nut  
1/4-20 Nylok Nut  
5/16-18 Eye Bolt  
33  
3/8-16 HNCGR2 ZP  
3/8-16 X 1 GR5 ZP Bolt  
Idler Spacer  
34  
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TROUBLESHOOTING  
SYMPTOM  
CAUSE  
CORRECTION  
1.  
2.  
3.  
4.  
5.  
6.  
WEAK OR DEAD BATTERY  
AIR FILTER DIRTY  
1.  
REPLACE OR RECHARGE  
ENGINE HARD  
TO START  
2.  
3.  
4.  
5.  
CLEAN OR REPLACE  
REPLACE SPARK PLUG  
REPLACE FUEL FILTER  
BAD SPARK PLUG  
FUEL FILTER DIRTY  
STALE OR CONTAMINATED FUEL  
CARBURATOR OUT OF ADJUSTMENT  
DRAIN AND REPLACE WITH  
FRESH FUEL  
6.  
CONTACT NEAREST  
BRIGGS&STRATTON SERVICE  
REPRESENTATIVE  
1.  
2.  
3.  
MOVE LEVERS INTO POSITION.  
PUSH PTO SWITCH IN.  
1.  
STEERING LEVERS NOT IN  
NEUTRAL LOCKED POSITION  
ENGINE WILL  
NOT START  
OR LOSS OF  
POWER  
SEE START UP IN OPERATION  
SECTION.  
2.  
3.  
PTO SWITCH IS ENGAGED  
THROTTLE NOT SET PROPERLY  
OR NOT PROPERLY “CHOKED”  
4.  
WAIT SEVERAL MINUTES  
BEFORE STARTING  
4.  
5.  
6.  
7.  
8.  
9.  
ENGINE FLOODED  
DIRTY FUEL FILTER  
DIRTY AIR FILTER  
CONTAMINATED FUEL  
BLOWN FUSE  
5.  
6.  
7.  
REPLACE WITH NEW FILTER  
REPLACE OR CLEAN  
DRAIN AND REPLACE WITH  
FRESH FUEL  
8.  
9.  
REPLACE FUSE  
REPLACE PLUG AND TIGHTEN  
PLUG WIRE  
BAD SPARK PLUG OR LOOSE  
PLUG WIRE  
10.  
11.  
12.  
CLEAN ENGINE AIR SCREENS  
REPLACE OR RECHARGE  
10.  
11.  
12.  
DIRTY ENGINE AIR SCREENS  
WEAK OR DEAD BATTERY  
CONTACT NEAREST  
BRIGGS&STRATTON SERVICE  
REPRESENTATIVE  
CARBURATOR OUT OF  
ADJUSTMENT  
13.  
14.  
15.  
REPLACE WITH FRESH FUEL  
CLEAN TERMINALS  
13.  
14.  
OUT OF FUEL  
CORRODED BATTERY  
TERMINALS  
CONTACT SWISHER SERVICE  
REPRESENTATIVE  
15.  
16.  
17.  
LOOSE OR DAMAGED WIRING  
LOW OR DIRTY OIL  
16.  
17.  
CHECK LEVEL/CHANGE OIL  
CLEAN UNDERSIDE OF MOWER  
DEBRIS BUILT-UP UNDER DECK  
1.  
2.  
IMPROPER AIR PRESSURE  
1.  
2.  
CHECK ANDADJUST TIRE  
PRESSURE  
UNIT DOES  
NOT TRACK  
STRAIGHT  
TRACKING ADJUSTMENTS OUT OF  
ADJUSTMENT  
SEE TRACKING ADJUSTMENT IN  
SERVICE SECTION  
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26  
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swisherinc.com  
“Z” SERIES  
ZERO TURN HYDROSTATIC DRIVE  
Each mower has its own model number. Each engine has its  
own model number. The model number for the mower will be  
found under the seat. The model number for the engine will be  
found on the top of the blower fan housing.  
All mower parts listed herein may be ordered directly from  
Swisher Mower & Machine Co. Inc. or your nearest Swisher  
dealer.  
OWNER’S  
MANUAL  
All engine parts may be ordered from the nearest dealer of the  
engine supplied with your mower.  
WHEN ORDERING PARTS, PLEASE HAVE THE  
FOLLOWING INORMATION AVAILABLE:  
MODEL NO.  
ZT1436  
ZT17542B  
ZT1842  
* PRODUCT – Zero Turn Rider (“Z” Series)  
* SERIAL NUMBER - _______________  
* MODEL NUMBER - _______________  
* ENGINE MODEL NUMBER - _______________  
TYPE - _______________  
* PART NUMBER WITH PAINT CODE  
* PART DESCRIPTION  
TELEPHONE - 1-800-222-8183  
FAX - 1-660-747-8650  
ZT20050  
SWISHER MOWER & MACHINE CO. INC.  
1602 CORPORATE DRIVE  
P.O. BOX 67  
WARRENSBURG, MO 64093  
SWISHER MOWER & MACHINE CO. INC.  
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