Simplicity Regent Series Repair Information
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Simplicity Regent Series Repair Information

Neutral adjustments for hydrostatic drive tractors
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  • Page 1 • (Note: We will do our best to answer your questions concerning this job, but may need to transfer you to another department within our company for additional specifications and job requirements). ————————————————————————————————————————————––– If you have further questions on how to utilize this file, please contact Simplicity Technical Publications Department at (262) 284-8647.
  • Page 2 THIS PAGE INTENTIONALLY BLANK...
  • Page 3 Repair Information Neutral Adjustments For Hydrostatic Drive Tractors Volume I Fifth Edition (1975 – 1997 Model Year) Rev. 7/1999 TP 500-1220-06-XX-SMA...
  • Page 4 M A N U F A C T U R I N G I N C . 500 N. Spring Street / PO Box 997 Port Washington, WI 53074-0997 USA www.simplicitymfg.com © Copyright 1999, Simplicity Manfacturing, Inc. All Rights Reserved. Printed in USA...
  • Page 5 Table of Contents Page Section 1. Commercial Front-Cut Riders with Dual Eaton Model 7 Hydrostatic ..........SIMPLICITY AGCO ALLIS MASSEY FERGUSON CFC Series/Procut 3000 Series 1691969 - 20 HP 1691846 - 20 HP 1691975 - 20 HP 1691971 - 18 HP...

  • Page 6: Table Of Contents

    Table of Contents (Continued) Page Tractors with Hydro-Gear 216-3010L Hydrostatic Transaxle ....................SIMPLICITY AGCO ALLIS MASSEY FERGUSON Landlord Series 1700 Series 2700 Series 1692788 - 18 HP 1692576 - 18 HP 1692841 - 18 HP 1692578 - 18 HP 1692854 - 17 HP...
  • Page 7 (Continued) Lawn Tractors with HydroGear 310 - 0500 Transaxle (With Hand Control) .............. SIMPLICITY AGCO ALLIS MASSEY FERGUSON Regent Series 500 Series 2500 Series 1692403 - 12.5 HP 1692259 - 12.5 HP 1692412 - 12.5 HP 1692263 - 12.5 HP 1692495 - 12.5 HP...
  • Page 8 1692176 - 12.5 HP Transmission Purging This procedure applies to the following models: Simplicity - Regent & Coronet Series AGCO Allis - 500 & 400 Series Massey Ferguson - 2500 & 2400 Series The following is a purging procedure for products that use the Hydro-Gear transmis- sion.
  • Page 9 Introduction This manual assumes all clutch and brake adjustments have been made, and that transmission control linkages are in good serviceable condition. Worn parts, broken or weak springs, fasteners, and bushings should be replaced as necessary before attempting to make adjustments. It is possible during adjustments to place yourself in a position which is more hazardous than when the unit is in normal operation.
  • Page 10 Section 1. Commercial Front-Cut Rider with Dual Eaton Model 7 Hydrostatic Wheel-Steer Adjustments Neutral 1. Make sure that the steering wheel is spring- centered in the straight-forward position. If spring pulls steering wheel off-center, loosen the nut securing the anchor bolt (G) and move bolt in slot until wheel is pointing straight ahead.
  • Page 11 Section 1. (Continued) Commercial Front-Cut Rider with Dual Eaton Model 7 Hydrostatic Ground Speed Control The position and angle of the foot pedal (A, figure 1-3) can be adjusted by loosening taptite screw (B) and moving pedal in slot. This adjustment should not affect rider speed or neutral adjustment.
  • Page 12 Section 1. (Continued) Commercial Front-Cut Rider with Dual Eaton Model 7 Hydrostatic Neutral Exact neutral position of transmission control linkage (A, figure 1-5) can be adjusted by changing position of linkage on frame bracket (B). With control levers in neutral position, wheels should not turn in forward or reverse direction.
  • Page 13 Section 1. (Continued) Commercial Front-Cut Rider with Dual Eaton Model 7 Hydrostatic Friction Pad The amount of effort required to move control levers can be adjusted by spring tension on friction pads (A, figure 1-7). Reducing spring tension will make the rider more responsive to control lever move- ment.
  • Page 14 Section 1. (Continued) Commercial Front-Cut Rider with Dual Eaton Model 7 Hydrostatic Wheel- & Lever-Steer Forward Travel Stop The adjustment bolt (A, figure 1-9) can be rotated to limit the maximum output speed of each hydro pump so that the rider will travel in a straight direction at full forward ground speed.

  • Page 15: Series

    Section 2. Large-Frame Tractors with Shaft Drive - Sundstrand Model 15 Hydrostatic (Peerless 2600-002 or 2600-008) Neutral Adjustment WARNING Before performing maintenance, lower the attachment, shut off engine and remove key, disengage PTO switches and set parking brake. If the tractor creeps forward or back when ground speed control lever is in NEUTRAL, adjust as follows.
  • Page 16 Section 3. Large-Frame Tractors with Belt Driven - Sundstrand Model 15 Hydrostatic Neutral Adjustment If the tractor creeps forward or back when the hydro- static control lever is in neutral, adjust as follows: CAUTION Always stop engine before leaving operator's position.
  • Page 17 Section 4. Tractors with Tuff Torq K215-A & HydroGear (Sundstrand) Hydrostatic, BDU-21L Neutral Adjustment (Early Model Only) 1. Park tractor on level surface. Shut off electric clutch switch and engine. Do not apply parking brake. Make sure transmission control lever is in neutral and the hydro release valve is in the “DRIVE”...
  • Page 18 Section 4. (Continued) Tractors with Tuff Torq K215-A & HydroGear (Sundstrand) Hydrostatic, BDU-21L Late Models - Early Models with 1686602 kit installed *2518 1. Perform neutral adjustment as follows: a. Put tractor in Neutral. Make sure tow valve is securely in the drive (UP) position or adjustment will not be accurate.

  • Page 19: Tractors With Hydrogear 216-3010L Hydrostatic Transaxle

    Section 4. (Continued) Tractors with HydroGear 216-3010L Hydrostatic Transaxle Neutral Adjustment FRONT Perform the following adjustment if the shift lever must be moved out of the neutral gate to prevent forward or reverse tractor movement. (With the clutch/brake pedal released, a V-Pulley small amount of travel in the shift lever may be required to fully stop tractor.)

  • Page 20: Series

    Section 4. (Continued) Tractors with HydroGear 216-3010L Hydrostatic Transaxle Return-to-Neutral Adjustment - Hydro FRONT See figure 4-4. Perform the following adjustment if the shift lever does not return to the neutral gate from a forward gear position when the clutch/brake pedal is fully depressed. V-Pulley 1.

  • Page 21: Tractors With Eaton 850 Transaxle

    Section 5. Tractors with Eaton 850 Transaxle Neutral Adjustment 8. Stroke control lever to full forward position and return lever to neutral. Center the lever in the neutral gate. Tires NOTE will be rotating forward or backward. The tractor may creep a small amount forward or back-ward while in neutral gate when the parking brake is not locked.

  • Page 22: Tractors With Tuff Torq K60 Hydrostatic Transaxle

    Section 6. Tractors with Tuff Torq K60 Hydrostatic Transaxle Neutral Adjustment 7. With positioning pin in place, tighten nut (D) and then tighten nut (A). Note: Perform this adjustment procedure only if tractor moves forward or reverse when ground speed control 8.

  • Page 23: Tractors With Hydrogear 311-0750/311-0800 Transaxle

    Section 6. (Continued) Tractors with HydroGear 311-0750/311-0800 Transaxle Neutral Adjustment Perform the following adjustment if the shift lever must be moved out of the neutral gate to prevent forward or reverse tractor movement. With the clutch/brake pedal released, a small amount of travel in the shift lever may be required to fully stop tractor.
  • Page 24 Section 6. (Continued) Tractors with HydroGear 311-0750/311-0800 Transaxle Return-to-Neutral Adjustment Perform the following adjustment if the shift lever does not return to the neutral gate when the clutch/ brake pedal is fully depressed. 1. Make sure the Neutral Adjustment is correct (refer to preceding paragraph).

  • Page 25: Lawn Tractors With Eaton 750 Or 751 Hydrostatic Transaxle

    Section 6. (Continued) Lawn Tractors with Eaton 750 or 751 Transaxles Locate Assembly Number (750 or 751) and refer to the following three pages before adjusting. Early Model 750 with Welded Support Bracket ....21 Later Model 750 with Plastic Support Bracket ....22 Model 751 ................

  • Page 26: Series

    Section 6. (Continued) Lawn Tractors with Eaton 750 Hydrostatic Transaxle Check Preceding Page to Locate Assembly Number. NOTE: Perform the Clutch/Brake Adjustment before doing the Neutral Adjustment. Neutral Adjustment Early Models with Welded Support Bracket (H, Figure 6-4) 1. Park tractor on level surface. Shut off PTO switch and engine.

  • Page 27: Series

    Section 6. (Continued) Lawn Tractors with Eaton 750 Hydrostatic Transaxle Neutral Adjustment Later Models with Plastic Bracket (H, Figure 6-5) 1. Park tractor on level surface. Shut off PTO switch and engine. Do not apply parking brake. Make sure transmission control lever is in neutral and has activated neutral switch light (ignition switch on).
  • Page 28 Section 6. (Continued) Lawn Tractors with Eaton 751 Hydrostatic Transaxle Neutral Adjustment 1. Park tractor on level surface. Shut off PTO switch and 10. Pull right end of speed control lever (B) fully forward. engine and remove key. Do not apply parking brake. Tighten the left side 1/4"...

  • Page 29: Lawn Tractors With Hydrogear (Formerly Agri-Fab) Sundstrand Bdu10S Transaxle

    Section 7. Lawn Tractors with HydroGear (Formerly Agri-Fab) Sundstrand BDU10S Transaxle Neutral Adjustment - (Linkage with two ball joints) If the tractor creeps forward or back with transmission in 7. Lower the seat deck. Start the engine to check again. If neutral notch, adjust as follows.
  • Page 30 Section 7. (Continued) Lawn Tractors with HydroGear (Formerly Agri-Fab) Sundstrand BDU10S Transaxle Neutral Adjustment - (Linkage with one ball joint) *303 If the tractor creeps forward or back with transmission in neutral notch, adjust as follows: 1. Raise rear of tractor off ground with suitable hoist or floor jack.

  • Page 31: Lawn Tractors With Hydrogear 310 - 0500 Transaxle (With Hand Control)

    Section 7. (Continued) Lawn Tractors with HydroGear 310 - 0500 Transaxle (With Hand Control) *2538 WARNING To avoid serious injury, perform adjustments only with engine stopped, key removed and trac- tor on level ground. Neutral Adjustment If the tractor creeps forward or backward with ground control speed lever positioned in the neutral gate, perform the following adjustment.

  • Page 32: Lawn Tractors With Hydrogear 318-0500/322-0500 Transaxle (With Foot Control)

    Section 7. (Continued) Lawn Tractors with HydroGear 318-0500/322-0500/322-0650 Transaxle (With Foot Control) Viewed from right side of tractor with rear WARNING wheel removed and foot pedal fully depressed. When making adjustment, keep hands, hair, clothing, and tools away from rotating belts. Grasp cam lever at base to keep hand several inches below belt rotating around idler pulley assembly.

  • Page 33: Series

    Section 7. (Continued) Lawn Tractors with HydroGear 318-0500/322-0500/322-0650 Transaxle (With Foot Control) If the unit does not reach top speed with the forward Unit pictured from above with frame removed. direction pedal fully depressed, perform the follow- ing adjustment with the engine off and PTO disen- gaged.

  • Page 34: Lawn Tractors With Eaton Model 7 Hydrostatic & Peerless 1300 Series Transaxle

    Section 8. Lawn Tractors with Eaton Model 7 Hydrostatic & Peerless 1300 Series Transaxle *303 Neutral Adjustment If the tractor creeps forward or back with transmission in neutral notch, adjust as follows. 1. Seat yourself in the operator’s seat and start the engine.

  • Page 35: Later Model Front-Cut Riders With Eaton Model 7 Hydrostatic

    Section 9. Later Model Front-Cut Rider with Eaton Model 7 Hydrostatic Neutral Adjustment *1948 WARNING Keep away from moving parts when engine is running. 1. Adjustment can be performed with mower installed. 2. Loosen nuts (B, figure 9-1) on either side of guide (C).

  • Page 36: Early Model Front-Cut Riders With Eaton Model 7 Hydrostatic

    Section 10. Early Model Front-Cut Rider with Eaton Model 7 Hydrostatic Neutral Adjustment WARNING Keep away from moving parts when engine is running. 1. Remove the mower from the rider. 2. Loosen nuts (B, figure 10-1) on either side of guide (C).

  • Page 37: Series

    Section 11. Mid-Engine Riding Mowers with HydroGear 311-0500 Neutral Adjustment *2425 Perform the following adjustment if the shift lever must be moved out of the neutral gate to prevent forward or reverse rider movement. With the shift lever in the neutral gate and the clutch/brake pedal released, a small amount of travel in the shift lever may be required to fully stop rider.

  • Page 38: Series

    INDEX Numerical Index by Manufacturing Number Mfg No Section Page Mfg No Section Page Mfg No Section Page Mfg No Section Page Mfg No Section Page 1690006 ..3 ..12 1691019 ..2 ..11 1691718 ..3 ..12 1692131 ..
  • Page 39 Notes...
  • Page 40 Notes...

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