swisherinc.com OWNER’S MANUAL MODEL NO. ZT1436 ZT17542B ZT1842 ZT20050 IMPORTANT Read and follow all Safety Precautions and Instructions before operating this equipment. Rev.02.19.2003 “Z” SERIES ZERO TURN HYDROSTATIC DRIVE Assembly Operation Service and Adjustment Repair Parts 1602 CORPORATE DRIVE, P.O.
LIMITED WARRANTY The manufacturer’s warranty to the original consumer purchaser is: This product is free from defects in materials and workmanship for a period of two (2) years from the date of purchase by the original consumer purchaser. We will repair or replace, at our discretion, parts found to be defective due to materials or workmanship.
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 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.
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.
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.
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 Height Indicator Decal - OD99151 42” Decal (17.
OPERATING YOUR NEW ZTR MOWER (cont.) CONTROLS STARTING MOWER _ • _ _ _ _ _ _ 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. • WARNING: Do not operate the machine unless the Operator’s Presence System is functioning as described.
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.
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.
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.
SERVICE / ADJUSTMENTS CAUTION: Before performing any service or adjustments do as follows: 1. 2. 3. 4. 5. Turn off PTO switch. Position unit on smooth flat surface. Place steering levers in outward, neutral-locked position. Turn ignition key “OFF” and set parking brake. 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.
SERVICE / ADJUSTMENTS INSTALLING THE MOWER DECK REMOVING THE MOWER DECK 1. 2. 3. 4. 5. 6. Turn off engine and engage parking brake. Rotate cutting height lever counterclockwise to lowest cutting position. Remove bolt from pickup point located at the front of the deck. Remove cotter pins on rear hanger points and slide out stabilizer bars.Disconnect tension spring bolt from tension bracket. Remove belt from mower pulley and electric clutch. Slide mower deck from under unit. 1. 2. 3. 4. 5. 6.
SERVICE / ADJUSTMENTS LEVELING THE MOWER DECK 1. Position unit on a smooth level surface. 2. 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.
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. 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 #: 3816 Part #: 3752 Transaxle belt replacement 1. 2. 3. 4. Part #: 3820 5. 6. 7. 8. 9. 10. 66LR- Transmission Belt 15 Remove clutch drive belt.
WIRING DIAGRAMS 36” and 42” Mowers 50” Mower 16
STEERING DETAIL (Page 19) ENGINE DETAIL (Page 18) SEAT DETAIL (Page 20) 19 2 3 FRAME DETAIL (Page 21 & 22) TRANSMISSION IDLER DETAIL (This Page) 17 1 6 4 2 18 5 16 3 Transmission Idler 22 21 23 20 15 10 23 28 12 9 24 30 29 7 8 13 11 25 3 DECK LIFT DETAIL (Page 19) 26 12 13 14 15 16 17 18 19 Description Battery Box 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 3/4 Push Nut Blk Plastic Bearing Cast
BLADE DRIVER BLADE DRIVER For 42 and 50” Mowers 1 2 4 3 5 6 7 Item # 1 2 3 4 5 6 7 8 9 8 10 11 12 14 13 13 6 9 16 15 17 15 18 10 11 12 13 14 15 16 17 18 19 20 21 22 23 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 Blade Shaft 4.25" Bearing Housing 36" Mower - 18" Blade 42" Mower - 20 1/2" Blade 42" Mower - 22" Blade 17.
STEERING (RIGHT) 25 6 24 4 26 19 21 11 27 23 Item # 1 2 3 4 5 6 7 8 18 20 29 15 16 1 11 14 10 17 12 28 12 6 6 22 9 9 8 10 11 12 13 14 15 16 17 18 19 20 21 22 7 13 5 4 2 3 DECK LIFT 30 34 31 32 35 41 43 33 38 37 36 44 39 40 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 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
SEAT BASE ASSEMBLY Item # 1 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 Seat Hinge Tapered Spring Control Cover Seat Mount 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.
FRAME for 36” and 42” Mowers 5 4 1 5 8 27 28 3 29 3 2 11 5 6 3 26 7 10 5 24 23 9 13 20 18 12 16 SEE DETAIL NEXT PAGE 3 13 3 18 15 5 6 7 8 9 10 11 12 13 14 15 Description Beverage Retainer 5/16-18 X 1/2 Serr.
BRAKE LINKAGE DETAIL (All Models) 36 35 38 35 3 37 Item # 35 36 37 38 39 Description 1/4-20 Nylok Nut 5/16 SAE Washer 5/16-18 X 1 Eye Bolt Spring Spring Part # NB181 NB275 NB202 TR148S T2SM 39 FRAME FOR 50” MOWER 44 41 43 42 40 45 13 Item # 40 41 42 43 44 45 Description Bumper Weldment Upper Motor Base Transmission Mount Choke Mount 50" Mower Fender Right 50" Mower Fender Left Fender Mount Part # 3778TK 3777TK 3787TK 3810TK 3783TK 3784TK 3782TK Not Pictured DESCRIPTION PART # Choke Cable 3
36” MOWING DECK 14 16 15 1 2 13 9 3 6 4 5 11 12 10 SEE DETAIL Page 18 SEE DETAIL THIS PAGE 12 11 10 28 9 Item # 1 2 3 4 5 8 NOT SHOWN Roller Bracket (28) Mounting Hardware DESCRIPTION PART # 5/16-18 X 3/4 Serr Flg Bolt NB596 5/16-18 Serrated Flange Nut NB170 7 QTY 2 2 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 DECK IDLER 17 18 19 27 20 9 21 26 23 13 22 25 24 23 Description Deck Weldment 5/16-18 X 3/4 Serr Flg Bolt Pulley Cover 5/16-18 Serrated Flange Nu
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 10 28 9 2 8 NOT SHOWN 7 Roller Bracket (28) Mounting Hardware DESCRIPTION PART # 5/16-18 X 3/4 Serr Flg Bolt NB596 5/16-18 Serrated Flange Nut NB170 9 SEE DETAIL THIS PAGE Item # 1 2 3 4 5 17 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 19 22 20 21 23 25 Shown Below 4 QTY 2 2 DECK IDLER 18 13 24 24 Description Deck Weldment 5/16-18 X 3/4 Serr
50” MOWING DECK 16 15 4 3 7 1 2 18 8 SEE DETAIL THIS PAGE 17 9 5 6 11 10 SEE DETAIL Page 18 11 14 7 9 13 DECK IDLER 28 3 20 6 7 8 9 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 35 29 23 31 30 29 22 22 37 27 21 28 24 25 21 26 32 9 Item # 1 2 3 4 5 29 36 8 8 12 33 34 25 Description 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 1/
TROUBLESHOOTING SYMPTOM CAUSE ENGINE HARD TO START 1. 2. 3. 4. 5. 6. CORRECTION WEAK OR DEAD BATTERY AIR FILTER DIRTY BAD SPARK PLUG FUEL FILTER DIRTY STALE OR CONTAMINATED FUEL CARBURATOR OUT OF ADJUSTMENT 1. 2. 3. 4. 5. 6. ENGINE WILL NOT START OR LOSS OF POWER 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. UNIT DOES NOT TRACK STRAIGHT 1. 2.
“Z” SERIES swisherinc.com 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. All engine parts may be ordered from the nearest dealer of the engine supplied with your mower.