MTD Garden Tractors User Manual
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MTD Garden Tractors User Manual

Garden tractors
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For Parts Call 606-678-9623 or 606-561-4983
MTD SERVICE LLC Product Training and Education Department
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Summary of Contents for MTD Garden Tractors

  • Page 1 For Parts Call 606-678-9623 or 606-561-4983 MTD SERVICE LLC Product Training and Education Department www.mymowerparts.com...

  • Page 2: Table Of Contents

    Servicing the 618-0229 MTD 2 Speed Transaxle ........
  • Page 3 For Parts Call 606-678-9623 or 606-561-4983 Hydrostatic Transmission Control Adjustment7-2 Hydraulic Lift Valve Adjustment7-4 Power Take Off (PTO) Adjustment7-5 PTO Belt Removal7-5 Rear Wheel Track Adjustment7-5 Undercarriage Locks7-6 Drive Shaft Removal7-6 Three Point Hitch Assembly7-7 Leveling the Deck (Optional Equipment)7-8 CUTTING DECKS .
  • Page 4 For Parts Call 606-678-9623 or 606-561-4983 www.mymowerparts.com...

  • Page 5: Work Safety-Follow These Rules

    For Parts Call 606-678-9623 or 606-561-4983 WORK SAFELY—FOLLOW THESE RULES This symbol is used to call your attention to instructions concerning your personal safety. Be sure to observe and follow these instructions. 1. To prevent accidental starting, always pull the d.
  • Page 6 For Parts Call 606-678-9623 or 606-561-4983 13. Hydraulic fluid escaping under pressure can 16. When splitting tractors or disassembling have enough force to penetrate the skin. machines, be sure to use safety stands and Hydraulic fluid may also infect a minor cut or adequate supports to prevent tipping or roll- opening in the skin.

  • Page 7: General Information And Safety Precautions

    2-5. CUSTOMER NUMBERS. 2-5.1 In addition to customers who purchase tractors and equipment marked with the MTD brand and name logos, there are customers who order tractors and equipment marked with their own brand name and/or logos. Basic units are the same except for color and decoration.

  • Page 8: Batteries And Charging Systems

    For Parts Call 606-678-9623 or 606-561-4983 BATTERIES AND CHARGING SYSTEMS 2-6. GENERAL. 2-6.1 The main storage or electrical power in our electric start lawn mowers, riders and tractors is the battery. With proper setup and mainte- nance the battery will last for years. However, in some remote cases even with proper main- tenance a battery can lose power.
  • Page 9 For Parts Call 606-678-9623 or 606-561-4983 NOTE Batteries 725-1430 only contain a special chemical sulfate stop that has been added to reduce sulfate crystal deposits (which eventu- ally prevent the battery from accepting a charge). Sulfate stop is a white powder chemi- cal that may be visible before the battery is activated, but dissolved once electrolyte is NOTE...
  • Page 10 For Parts Call 606-678-9623 or 606-561-4983 Previously this battery was 240 CCA and it has been Battery #725-1707C upgraded to 380 CCA which gives added cranking DRY 275 CCA Cold Cranking Amps. power in cold weather. It is shipped dry and it is sug- Battery Type U-1 Flat Top gested that the acid should be purchased locally.
  • Page 11 4. Regulated 16 amp system check on how it was progressing. He walked into a partially dark garage, not thinking, and MTD mainly uses the dual circuit and regulated leaned over the battery and flipped on this cig- systems. arette lighter. Well, you can guess what hap- pened next.
  • Page 12 For Parts Call 606-678-9623 or 606-561-4983 tion (regulator) which is regulated and rated 16 amps at 3600 RPM. 4. The 16 amp DC terminal at 3600 RPM oper- ates the head lamp. The regulated system pro- duces 12 volts DC which goes to the battery. Engine speed will determine amount of amps regulated.
  • Page 13 For Parts Call 606-678-9623 or 606-561-4983 3. Batteries in storage discharge slower when 3. Ventilate when charging or using battery in kept cold than when too warm. enclosed space. 4. The best place to store the battery is in the 4.
  • Page 14 For Parts Call 606-678-9623 or 606-561-4983 CAUTION 3. Decomposition of water leaves acid more con- centrated. Concentrated acid is harmful to cell Do not use water or any other liquid to acti- components, particularly at high temperatures vate. During cold weather, if electrolyte (acid) over a prolonged period of time.
  • Page 15 For Parts Call 606-678-9623 or 606-561-4983 the pores of the separators and deposit as a 2-13.7 Freezing of Electrolyte. white crystalline mass. Subsequent charging may convert these crystalline deposits to 1. The electrolyte of a battery in various states of metallic lead which may short the positive and charge will start to freeze at temperatures indi- negative plates through the areas of the sepa-...
  • Page 16 For Parts Call 606-678-9623 or 606-561-4983 shorted cell which, in some instances, cannot be charged or will not hold a charge. See Fig- 7. The inability to bring the specific gravity of any ure 2-9. one cell up to 1.235 after charging is also an indication of an unserviceable battery and it 1.
  • Page 17 For Parts Call 606-678-9623 or 606-561-4983 3. A fully charged battery will register 13.0 volts brought too near them. A room or compartment on the voltmeter in which charging batteries are confined should be ventilated. Do not bring flame or sparks 4.
  • Page 18 For Parts Call 606-678-9623 or 606-561-4983 a. Connect one end of first cable to the termi- nal of the discharged battery which is con- c. There is no voltage present at the wall nected to the starter switch or solenoid socket.
  • Page 19 For Parts Call 606-678-9623 or 606-561-4983 Technical Handbooks Volume I, II and III. We 3. Clean the battery and cable contact surface to have found that rider and tractor batteries do a bright metal finish whenever they are not have memories, and the capability of removed.
  • Page 20 For Parts Call 606-678-9623 or 606-561-4983 2-14 www.mymowerparts.com...

  • Page 21: Safety Interlock Systems

    3-1.4 All lawn and garden tractors produced after July, 1987 were requested by ANSI (American National Standards Institute) to have an opera- tor present as an added safety feature. If the operator leaves the seat with the blades or PTO engaged, the engine will shut off.
  • Page 22 For Parts Call 606-678-9623 or 606-561-4983 Figure 3-2. Mounting Bracket. 2. The standard battery used in the 600 series is 725-0514 (125 cold cranking amps). This bat- tery can now be replaced by part number 725- 1430 (275 cold cranking amps) by removing the battery spring retainer to allow clearance for the larger battery.

  • Page 23: Electric Start System

    For Parts Call 606-678-9623 or 606-561-4983 CAUTION chances of a short. This also will retrofit prior production unit Do not cut off excess cable tie. The excess end will help keep the harness from being drawn up 3-2.2 600, 700 and 800 Series Only. The circuit into the steering wheel and causing serious breaker is being replaced by a standard auto- damage to the wires.
  • Page 24 For Parts Call 606-678-9623 or 606-561-4983 d. Turn the ignition key to the START posi- b. The negative terminal on the battery and tion. the ground to the frame. NOTE c. The ignition switch terminal. If the engine does not crank, use the following procedure to check out the system.
  • Page 25 For Parts Call 606-678-9623 or 606-561-4983 WARNING NOTE To test the interlock system further, you will be Transmission lever must not be touching the bypassing the safety switches. Make sure that reverse spring switch and the key must be in the clutch is disengaged and the blade the ON position.
  • Page 26 For Parts Call 606-678-9623 or 606-561-4983 a. Disconnect the spark plug wire from the a. Disconnect the spark plug wire from the spark plug. spark plug. b. Disconnect the wire AT THE STARTER b. Disconnect the coil wire from the solenoid. which runs to the solenoid.
  • Page 27 For Parts Call 606-678-9623 or 606-561-4983 www.mymowerparts.com...
  • Page 28 For Parts Call 606-678-9623 or 606-561-4983 www.mymowerparts.com...
  • Page 29 For Parts Call 606-678-9623 or 606-561-4983 www.mymowerparts.com...
  • Page 30 For Parts Call 606-678-9623 or 606-561-4983 3-10 www.mymowerparts.com...
  • Page 31 For Parts Call 606-678-9623 or 606-561-4983 3-11 www.mymowerparts.com...
  • Page 32 For Parts Call 606-678-9623 or 606-561-4983 3-12 www.mymowerparts.com...
  • Page 33 For Parts Call 606-678-9623 or 606-561-4983 3-13 www.mymowerparts.com...
  • Page 34 For Parts Call 606-678-9623 or 606-561-4983 3-14 www.mymowerparts.com...

  • Page 35: Troubleshooting Safety Interlock Systems

    For Parts Call 606-678-9623 or 606-561-4983 *An “OPEN” circuit indicates solenoid failure. 3. Remove the shift panel to gain access to the solenoid and fuse. Remove meter leads and reconnect the starter wire. a. Check for a tripped circuit breaker or blown fuse.
  • Page 36 For Parts Call 606-678-9623 or 606-561-4983 Figure 3-21. Figure 3-23. NOTE 7. Touch probe to terminal on solenoid that goes The connector is notched to fit together one to starter. Turn ignition key to the start position. way only. The red wires should align with each If no voltage is present, replace the solenoid.
  • Page 37 For Parts Call 606-678-9623 or 606-561-4983 Figure 3-27. Figure 3-25. 10. To test for ground, connect one test lead to the Touch the other lead to the mounting bracket of positive terminal of the battery and the other the solenoid. If voltage is present, the solenoid lead to the engine block.
  • Page 38 For Parts Call 606-678-9623 or 606-561-4983 14. For clarity we have removed the ignition switch. Figure 3-29. 12. If voltage was not present at the orange wire Figure 3-30. on the solenoid while cranking the engine, you will need to check the ignition switch and 15.
  • Page 39 For Parts Call 606-678-9623 or 606-561-4983 Figure 3-34. Figure 3-32. 19. If the unit does not crank, make sure the If the unit still fails to crank, continue testing. clutch/brake pedal switch is fully depressed. Remove the switch and jump a wire between 17.
  • Page 40 For Parts Call 606-678-9623 or 606-561-4983 5. If the engine fails to start, and you do not have an afterfire solenoid, the problem is in the engine and must be repaired by an authorized engine service dealer. 6. If you do have an engine with an afterfire sole- noid attach your tester to the red wire and ground.
  • Page 41 For Parts Call 606-678-9623 or 606-561-4983 If there is voltage, adjust the PTO clutch or replace it as needed. 2. If there is no voltage, check for voltage at the red wire at the PTO switch. If no voltage, check for voltage at the ignition switch.
  • Page 42 For Parts Call 606-678-9623 or 606-561-4983 1. Check the wiring at the PTO switch. See Fig- ure 3-46. Figure 3-44. If the blades engage without stalling the engine, the screws on the reverse safety Figure 3-46. switch are grounding out against the support If correct, check voltage at PTO when blade bracket or panel.

  • Page 43: Evaluating Electric Clutches

    For Parts Call 606-678-9623 or 606-561-4983 tion. If there is no voltage, replace relay EVALUATING ELECTRIC CLUTCHES one. See Figure 3-48. This section will cover how to evaluate electric clutches. You will need a multi meter to per- form these tests. 1.
  • Page 44 For Parts Call 606-678-9623 or 606-561-4983 Figure 3-54. Figure 3-52. 5. The electric clutch initially needs to be bur- c. Turn the PTO switch on. nished before it is used by the owner. 3. If the meter reads below 3.5 amps, the prob- It is not done at the factory and is the responsi- lem would be in the electrical system leading to bility of the dealer or the customer.
  • Page 45 For Parts Call 606-678-9623 or 606-561-4983 3-25 www.mymowerparts.com...
  • Page 46 For Parts Call 606-678-9623 or 606-561-4983 Figure 3-56. 3-26 www.mymowerparts.com...
  • Page 47 For Parts Call 606-678-9623 or 606-561-4983 Figure 3-57. 3-27 www.mymowerparts.com...
  • Page 48 For Parts Call 606-678-9623 or 606-561-4983 Figure 3-58. 3-28 www.mymowerparts.com...
  • Page 49 For Parts Call 606-678-9623 or 606-561-4983 Figure 3-59. 3-29 www.mymowerparts.com...
  • Page 50 For Parts Call 606-678-9623 or 606-561-4983 Figure 3-60. 3-30 www.mymowerparts.com...
  • Page 51 For Parts Call 606-678-9623 or 606-561-4983 Figure 3-61. 3-31 www.mymowerparts.com...
  • Page 52 For Parts Call 606-678-9623 or 606-561-4983 Figure 3-62. 3-32 www.mymowerparts.com...
  • Page 53 For Parts Call 606-678-9623 or 606-561-4983 Figure 3-63. 3-33 www.mymowerparts.com...
  • Page 54 For Parts Call 606-678-9623 or 606-561-4983 Figure 3-64. 3-34 www.mymowerparts.com...
  • Page 55 For Parts Call 606-678-9623 or 606-561-4983 Figure 3-65. 3-35 www.mymowerparts.com...
  • Page 56 For Parts Call 606-678-9623 or 606-561-4983 Figure 3-66. 3-36 www.mymowerparts.com...
  • Page 57 For Parts Call 606-678-9623 or 606-561-4983 Figure 3-67. 3-37 www.mymowerparts.com...
  • Page 58 For Parts Call 606-678-9623 or 606-561-4983 Figure 3-68. 3-38 www.mymowerparts.com...
  • Page 59 For Parts Call 606-678-9623 or 606-561-4983 Figure 3-69. 3-39 www.mymowerparts.com...
  • Page 60 For Parts Call 606-678-9623 or 606-561-4983 Figure 3-70. 3-40 www.mymowerparts.com...
  • Page 61 For Parts Call 606-678-9623 or 606-561-4983 Figure 3-71. 3-41 www.mymowerparts.com...
  • Page 62 For Parts Call 606-678-9623 or 606-561-4983 Figure 3-72. 3-42 www.mymowerparts.com...

  • Page 63: Process Of Elimination

    For Parts Call 606-678-9623 or 606-561-4983 3-4. PROCESS OF ELIMINATION. 3-7. GROUNDING. 3-4.1. The process of elimination is a rapid means of 3-7.1 Grounding is the practice of using a metal establishing the cause of circuit or component chassis, engine block or body as a means of failure.
  • Page 64 For Parts Call 606-678-9623 or 606-561-4983 *Information courtesy of Briggs and Stratton Corporation. 3-9. EVALUATING ELECTRIC CLUTCHES. 3-9.1 Measure clutch coil resistance as follows: 1. Turn engine and PTO switch off. 2. Disconnect clutch wire connection. 3. Select meter to check ohms. 4.

  • Page 65: Burnishing Procedure For Electric Clutch/Brake

    For Parts Call 606-678-9623 or 606-561-4983 6. Changing the air gap is achieved by tightening 3. Increase to 75 percent throttle. and/or loosening the three nuts. 4. Engage and disengage the clutch 5 times (10 NOTE seconds on/10 seconds off). The electric clutch, part number 717-0983, is 5.
  • Page 66 For Parts Call 606-678-9623 or 606-561-4983 3-46 www.mymowerparts.com...

  • Page 67: Belts And Drive Systems

    For Parts Call 606-678-9623 or 606-561-4983 BELTS AND DRIVE SYSTEM 4-1. GENERAL. 2. About 95% of the V-belts used on MTD Prod- ucts, Inc. units have a Kevlar cord. Kevlar cord 4-1.1 V-belts are the most widely used means of was developed by DuPont and it is the stron- power transmission.
  • Page 68 For Parts Call 606-678-9623 or 606-561-4983 www.mymowerparts.com...

  • Page 69: Proper Storage Of V-Belts

    For Parts Call 606-678-9623 or 606-561-4983 gear must suddenly change direction). Incor- manufacturer to manufacturer. Yet, the cause rectly positioned belt guards: A guard too loose of the belt problems remains basic to all. The or too far away from a belt can be as bad as following is a list of causes which may help one that is adjusted too close.
  • Page 70 For Parts Call 606-678-9623 or 606-561-4983 b. The inner surface of the pulley is wrinkled, Oil and grease also cause belts to deteriorate. worn, rusted, dirty or nicked. Wrinkled and Clean belts with a volatile solution. Oil soaked worn pulleys should be replaced. Rusted, belts should be replaced immediately.

  • Page 71: Pulley Alignment

    For Parts Call 606-678-9623 or 606-561-4983 reduce the service life of the belt. Replace belt be realigned and set screws fastened securely. and correct operational methods. Damaged A nut and bolt sealant applied to the set screw idlers or frozen idler bearings will cause rapid will assure lasting tightness.

  • Page 72: Idlers

    For Parts Call 606-678-9623 or 606-561-4983 exists, the inner rim of the pulley will pull away Problems can be more difficult to find on a new from the string when the pulley is rotated. See unit because alignment appears to be correct, Figure 4-6.
  • Page 73 For Parts Call 606-678-9623 or 606-561-4983 4-7. GENERAL. drive system. The variable speed pulley, com- bined with the two speed transmission, allows 4-7.1 The variable speed pulley can best be 14 ground speeds: 7 low range and 7 high described as a torque converter. It is used on range.
  • Page 74 For Parts Call 606-678-9623 or 606-561-4983 the movable sheave up. This forces the trans- linkage can stop the variable speed pulley at mission V-belt to the outside of the variable any point. See Figure 4-10 speed pulley. A mechanical lock of the control www.mymowerparts.com...
  • Page 75 For Parts Call 606-678-9623 or 606-561-4983 4-7.5 Maintenance of Variable Speed Pulleys. 1. Testing. The movable sheave must be able to slide easily sideways but cannot be loose. If the movable sheave is too loose it will cock and will not slide when under load. 2.
  • Page 76 For Parts Call 606-678-9623 or 606-561-4983 2. Remove spring from variable speed torque bracket assembly. 3. Remove 4 inch bolt that secures the variable speed bracket assembly. 4. Insert spacer between bracket and frame. 5. Reassemble bolt and spring. NOTE On 1992, the idler bracket has two holes that secure the idler pulley.
  • Page 77 For Parts Call 606-678-9623 or 606-561-4983 4-7.11 See Figure 4-12 and adjust the speed control NOTE link as follows to obtain the correct neutral adjustment: If a customer’s unit will not release out of for- ward or reverse gear, first check the drive 1.
  • Page 78 For Parts Call 606-678-9623 or 606-561-4983 NOTE Make certain hex bolts are reassembled as shown. c. Unhook the deck belt from the engine pul- ley. d. Place the lift lever in the engaged (all the way forward) position. e. Disconnect the spring from the left rear deck bracket.
  • Page 79 For Parts Call 606-678-9623 or 606-561-4983 b. Start the engine. Place shift lever in neu- tral. Place cruise control lever in high speed position and turn engine off. Engage lift lever (move all the way forward). Do not set parking brake. c.
  • Page 80 For Parts Call 606-678-9623 or 606-561-4983 WARNING Disconnect the spark plug wire and ground it against the engine. 3. Remove the deck as described in the separate deck manual. 4. Unhook the idler spring from the rider frame. See Figure 4-19. 5.

  • Page 81: Transmatic Lawn Tractors 600 And 700 Series

    For Parts Call 606-678-9623 or 606-561-4983 10. Remove and replace the V-belt. See Figure 4- 11. Upon reassembly of idler pulley, be certain the NOTE hub side of idler goes against the idler bracket. See Figure 4-25. Be certain all belts are inside belt guards and keepers.
  • Page 82 For Parts Call 606-678-9623 or 606-561-4983 the movement of the variable speed pulley between the variable speed pulley and tran- in an arc like fashion. In the new system the saxle pulley to maintain this tension. See variable speed pulley pivots back and forth. Figure 4-27.
  • Page 83 For Parts Call 606-678-9623 or 606-561-4983 4-17 www.mymowerparts.com...
  • Page 84 For Parts Call 606-678-9623 or 606-561-4983 4-18 www.mymowerparts.com...
  • Page 85 For Parts Call 606-678-9623 or 606-561-4983 1. There may be times when the customer will not c. Place the speed control lever in high be able to obtain a full speed range. This may speed position. be caused by the brackets occasionally hang- ing up after substantial use.
  • Page 86 For Parts Call 606-678-9623 or 606-561-4983 4-20 www.mymowerparts.com...
  • Page 87 For Parts Call 606-678-9623 or 606-561-4983 1. Rear drive belt. Remove and replace rear belt right so the belt can be removed from the as follows: transmission pulley. See Figure 4-32. a. Place shift lever in neutral position. Unscrew the shift knob and the speed con- trol knob (if located on the console).
  • Page 88 For Parts Call 606-678-9623 or 606-561-4983 e. Remove the two self-tapping screws on each side of the frame which hold the engine pulley belt guard to the frame. See Figure 4-33. Remove the engine pulley belt guard by slipping it forward and down. Place the clutch-brake pedal in park posi- tion.
  • Page 89 For Parts Call 606-678-9623 or 606-561-4983 4-8.4 SPEED CONTROL ADJUSTMENT F. After engine stops completely, release the clutch-brake pedal. NOTE G. Place speed control lever between first and When operating the unit initially or after replacing second position (hold in this position). the belts, there will be little difference between the highest two speeds until after the belts have H.
  • Page 90 For Parts Call 606-678-9623 or 606-561-4983 6. Remove the belt from the transmission pulley. 7. Replace belt, and reassemble in reverse order. 8. Adjust the speed control as instructed previously. A.) To increase Dimension ‘‘B,’’ screw tie rod into tie rod end. B.) To decrease Dimension ‘‘B,’’...
  • Page 91 For Parts Call 606-678-9623 or 606-561-4983 5. Remove the two self-tapping screws on each side of the frame which hold the engine pulley belt guard to the frame. Remove the engine pul- ley belt guard by slipping it forward and down. See Figure 4-42.
  • Page 92 For Parts Call 606-678-9623 or 606-561-4983 9. Reassemble with a new belt, following instruc- tions in reverse order. 10. Adjust the speed control as instructed previously. 4-8.9 Belt Removal and Replacement With Electric Clutch. It is not necessary to tip the unit to remove the belts.

  • Page 93: Transmatic Tractors 800 Series

    For Parts Call 606-678-9623 or 606-561-4983 h. Place the clutch/brake pedal in park position. Remove the belt from the engine pulley. Move the variable speed pulley as necessary in order to remove the belt. NOTE When reassembling, make certain belt is inside the pins.
  • Page 94 For Parts Call 606-678-9623 or 606-561-4983 Subject: Service Kit drag link installation for model 600 & 800 series tractors 1996 production Problem: The drag link (the rod between the steering segment and the steering arm on the right front wheel) could be installed incorrectly. Note: The end of the drag link with the letter “A”...
  • Page 95 For Parts Call 606-678-9623 or 606-561-4983 4-29 www.mymowerparts.com...

  • Page 96: Models 600 & 800 Series Tractors Drag Link Installation

    For Parts Call 606-678-9623 or 606-561-4983 MODELS 600 & 800 SERIES TRACTORS DRAG LINK INSTALLATION Subject: Service Kit drag link installation for model 600 & 800 series tractors 1996 production Problem: The drag link (the rod between the steering segment and the steering arm on the right front wheel) could be installed incorrectly.
  • Page 97 For Parts Call 606-678-9623 or 606-561-4983 INSTALLATION INSTRUCTIONS: 1. Lift open hood of tractor. 2. Peel tape back on the wire harness until you expose approximately 4 inches of the wires. See figure 4-52. 3. Cut blue wire in half. 4.
  • Page 98 For Parts Call 606-678-9623 or 606-561-4983 NOTE b. Place the shift lever in NEUTRAL position. Some of these units come equipped with an c. Place the speed control lever in seventh electric clutch. These units will not need a deck speed position.
  • Page 99 For Parts Call 606-678-9623 or 606-561-4983 k. Thread the front speed control link in or out of the ferrule until the hole in the link lines up with the pin on the variable speed torque bracket. Secure with the flat washer and cot- ter pin removed in step i.
  • Page 100 For Parts Call 606-678-9623 or 606-561-4983 a. First remove the front drive belt as instructed In the previous section. b. Disconnect the spring which secures the idler pulley to the frame. c. Remove the transmission cover by unscrew- ing the two knobs, and removing two truss machine screws.

  • Page 101: Gear Drive 800 Series

    For Parts Call 606-678-9623 or 606-561-4983 forward to increase speed. When desired 4-10. GEAR DRIVE 800 SERIES. speed has been obtained, release lever in that position. Whenever clutch is engaged, 4-10.1Gear Shift Lever. The transaxle has four for- unit will automatically go to the preset speed. ward gears, neutral and reverse.
  • Page 102 For Parts Call 606-678-9623 or 606-561-4983 The clutch/brake pedal must be depressed 2. Raise and block the front wheels of the tractor so to start the engine. you can work under it. Remove and replace front belt as follows: 3. Depress the clutch/brake pedal and set the park- ing brake.

  • Page 103: Hydrostatic Drive 800 Series

    For Parts Call 606-678-9623 or 606-561-4983 6. Remove the center bolt and slide the transaxle 12. Check the brake adjustment. pulley off. 7. Reassemble in reverse order with a new V-belt. 4-11.2 Eaton Neutral Adjustments. If the tractor creeps 4-11. HYDROSTATIC DRIVE 800 SERIES. with the brake/speed control pedal depressed to the neutral position, adjust as follows: 4-11.1...
  • Page 104 For Parts Call 606-678-9623 or 606-561-4983 4-38 www.mymowerparts.com...
  • Page 105 For Parts Call 606-678-9623 or 606-561-4983 4-11.3 9. Tighten the hex nut on the scissor mounting Hydro-Gear Hydrostatic Neutral Control bracket. Adjustment. The hydrostatic transmission con- trol is in correct adjustment when the tractor 10. Thread the speed selector rod in or out of the fer- does not move with the engine running, the rule until the hydrostatic control lever lines up in clutch engaged and the hydrostatic control lever...
  • Page 106 For Parts Call 606-678-9623 or 606-561-4983 1998 800 Series Tractor 5. Tighten hex jam nut against ferrule. Be sure HYDROSTATIC NEUTRAL CONTROL adjustment rod does not move when tightening ADJUSTMENT the nut. The hydrostatic transmission control is in correct 6. Replace transmission panel and parking brake adjustment when the tractor does not move with knob.
  • Page 107 For Parts Call 606-678-9623 or 606-561-4983 10. Turn the steering wheel fully to the left and the right to make sure that the drag link does not touch any part of the tractor frame. If the drag link does touch, start at step 1 and redo the adjustment.
  • Page 108 For Parts Call 606-678-9623 or 606-561-4983 should be replaced initially after twenty hours of operation. Thereafter, replace every 100 hours 5. Hy-Tran (International Harvester) for commercial or industrial applications and yearly for normal usage. It can be removed by 6. 10W + Straight Viscosity—SE, CC or CD Rated turning it counterclockwise by hand.

  • Page 109: Hydrostatic Drive 900 Series

    For Parts Call 606-678-9623 or 606-561-4983 5. Reassemble in reverse order using a new belt. 5. Swing the belt guard forward towards the front of the tractor. 4-11.10 Remove and replace front drive belt as follows: WARNING 1. First remove the rear drive belt as instructed in paragraph 4-11.9.
  • Page 110 For Parts Call 606-678-9623 or 606-561-4983 oil level in the hydrostatic transmission, transaxle **Preferred. and hydraulic lift system. Check oil level when the hydrostatic oil is cold. Before checking the oil NOTE level, clean the area around the dipstick hole to prevent the entry of dirt.
  • Page 111 For Parts Call 606-678-9623 or 606-561-4983 4-45 www.mymowerparts.com...
  • Page 112 For Parts Call 606-678-9623 or 606-561-4983 4-46 www.mymowerparts.com...

  • Page 113: Transaxles

    For Parts Call 606-678-9623 or 606-561-4983 TRANSAXLES 5-1. General. tection from outside elements such as sand, dirt and rust that create wear on brake assem- 1. The heavy duty single speed transaxle incor- blies that are exposed on the outside. This porates features that you may recognize found inside brake assembly will provide longer life in the model no.

  • Page 114: Disassembly Of Heavy Duty Single Speed Transaxle, Model No. 618-0003

    For Parts Call 606-678-9623 or 606-561-4983 any reason, lubricate with 32 ounces of Shell 3. Inspect the needle bearings in the input hous- Grease 737-0148. ing for damage and replace if necessary. Check the thrust washers and thrust bearings 5-1.1 Disassembly of Heavy Duty Single Speed for wear.
  • Page 115 For Parts Call 606-678-9623 or 606-561-4983 10. Upon removal of housing halves, inspect the 7. During reassembly remove the cotter pin from bearings in the housing half and remove the castle nut and adjust the castle nut in or out to brake puck and inspect for wear.
  • Page 116 For Parts Call 606-678-9623 or 606-561-4983 11. Remove the brake disc from the drive shaft. Inspect the disc for wear and grooving on the brake surface. Replace if necessary. See Fig- ure 5-10. 12. Remove the differential assembly by pulling the axle shaft straight out of transaxle housing.
  • Page 117 For Parts Call 606-678-9623 or 606-561-4983 16. Lift up on the shifter assembly and rotate to 21. Disassemble the differential by removing four remove it from the housing. See Figure 5-15. bolts located at differential housing and gear. Inspect the miter gears for damage. If they need replacing, remove the snap ring on the cross shaft and slide the cross shaft and two miter gears out.

  • Page 118: Mtd 2 Speed Transmission Theory Of Operation

    MTD 2 SPEED TRANSMISSION THEORY OF OPERATION Before starting the disassembly of the trans- mission, we want to explain its operation. A clear understanding of the MTD 2 speed tran- saxle, part number 618-0229 and its operation will allow you to better troubleshoot any prob- lems that you may have with it.
  • Page 119 For Parts Call 606-678-9623 or 606-561-4983 To go into the reverse position the shift lever moves through neutral, assuring that the high/ low clutch collar is in the neutral position, (see Figure 5) and engages the reverse clutch col- lar into the 9 tooth sprocket of the reverse chain assembly.
  • Page 120 For Parts Call 606-678-9623 or 606-561-4983 ing turns. What about shimming? The primary reason for shimming is to set the proper back- lash or clearance between gears. This is espe- cially important on bevel gears. In this case it’s the backlash between the bevel gears on the input pinion and the drive shaft.
  • Page 121 For Parts Call 606-678-9623 or 606-561-4983 inch mounted on needle bearings. The input 5-2. SPEED TRANSAXLE. 1996 AND shaft is also mounted on needle bearings and PRIOR thrust washer assembly for high speed opera- tion. The shift lever is located in the front part 5-2.1 The two speed transaxle, part number 717- of the housing and has 4 positions: high, low,...
  • Page 122 The forward shift collar would be for the high speed gear. This transaxle uses a combination of powdered metal and steel cut gears. MTD’s minimum specifications for pow- dered metal gears for strength are 75,000 PSI. 5-2.3 The speed range of this transaxle is low gear through the 7 ranges would be .452 MPH to...
  • Page 123 For Parts Call 606-678-9623 or 606-561-4983 6. Remove the lower housing. Be sure to retain NOTE the four springs and detent balls. See Figure 5- If installing the new upper housing kit, 753- 0601, discard the old housing but retain all old hardware.
  • Page 124 For Parts Call 606-678-9623 or 606-561-4983 pins. The drive pins must move freely. Replace if necessary. See Figure 5-37. 10. Remove the shift collar assembly from the drive shaft. Remove the shift ring plugs from the back of the shift collar. Inspect the position 12.
  • Page 125 For Parts Call 606-678-9623 or 606-561-4983 13. Remove high gear from drive shaft. Inspect for wear. Replace if necessary. See Figure 5-39. 14. Remove the heavy duty retaining ring (snap ring) and washer from drive shaft at 11-tooth low gear. Remove gear and inspect for wear. Replace if necessary.
  • Page 126 For Parts Call 606-678-9623 or 606-561-4983 19. Remove the 31 tooth gear, shim washer and 21. Remove the drive shaft from the housing. spacer from the output shaft. Inspect for wear. Replace if necessary. See Figure 5-43. 22. Remove the 11 tooth gear and the gold shim washer which protects the bronze bushing.
  • Page 127 For Parts Call 606-678-9623 or 606-561-4983 27. Remove the drive shaft, check the bearing locations for wear and check the splines for 25. Remove the 25 tooth gear and shim washer. wear. See Figure 5-47. 28. Disengage the reverse sprocket from the chain and remove spacer with sprocket.
  • Page 128 For Parts Call 606-678-9623 or 606-561-4983 NOTE 35. Remove the retaining ring from the input shaft. See Figure 5-51. The two outside bearings have lip seals and MUST be assembled to the outside of housing upon reassembly. 31. Remove the four hex bolts and lock nuts hold- ing the differential assembly together.
  • Page 129 For Parts Call 606-678-9623 or 606-561-4983 NOTE Care MUST be taken upon reassembly of the input shaft into the housing. The two needle bearings have lip seals. Refer to Figures 5-49 and 5-65. 8-5.7 For reassembly, reverse steps 1 through 33. REASSEMBLY TIPS 1.
  • Page 130 For Parts Call 606-678-9623 or 606-561-4983 6. First place the pins into the housing. See Fig- ure 5-58. 9. Install detent balls into lower housing. See Fig- ure 5-61. NOTE The shift forks are replaced in a slightly differ- ent order. 7.

  • Page 131: Disassembly Of 4-Wheel Steer Transaxle, Model No. 717-1287

    For Parts Call 606-678-9623 or 606-561-4983 10. Install detent springs into lower housing. See Figure 5-62. 18. Secure the shifter with the four screws and tighten to 60 to 90 in-lbs. 11. Install the shim plate and cover over detent screws.

  • Page 132: Servicing The 618-0229 Mtd 2 Speed Transaxle

    5-52 and 5-65. The housing is heavy alu- minum die cast. This section will demonstrate the disassembly, inspection, and reassembly of the MTD 2 speed transaxle, part number 618-0229. 1. Place the shift lever in the neutral position and remove the three screws attaching the shift lever cover.
  • Page 133 For Parts Call 606-678-9623 or 606-561-4983 10. Remove the entire drive train by grabbing the axles with two fingers and pushing down on the housing with your thumbs to release the axles from the housing. Then, with one hand under the differential and the other on the front shaft, remove the entire gear train from the housing and place it on the workbench.
  • Page 134 For Parts Call 606-678-9623 or 606-561-4983 pucks are not excessively worn. Replace if 17. Remove the left side bearing block. This allows necessary. See Figure 5-73.. the output shaft and drive shaft assembly to come loose from the transmission. Remove the large washer from the output shaft.
  • Page 135 For Parts Call 606-678-9623 or 606-561-4983 25. Inspect the drive shaft and splines for any damage. Inspect the low range gear. It should spin freely. If the gear is damaged you will need to replace the entire drive shaft and gear as one assembly.
  • Page 136 For Parts Call 606-678-9623 or 606-561-4983 To reassemble the transmission install the bull gear, making sure that you line up the tabs with the slots on the gear. 38. Assemble the cluster gears by aligning the grooves on the two shafts. Insert the assembly into the bull gear.
  • Page 137 For Parts Call 606-678-9623 or 606-561-4983 NOTE Make sure the hub assembly nut is part num- ber 712-0364A, which is a lock nut and should be torqued 80-100 ft. lbs. Refer to Bulletin #T- 133 if in question and be sure when installing the nut the threads are clean.
  • Page 138 For Parts Call 606-678-9623 or 606-561-4983 54. Set the entire drive train into the upper housing starting with the top portion. Line up all axle bearing blocks with the housing, align the brake disc with the brake pucks, using a screwdriver if necessary, and set the axle into the housing.

  • Page 139: Hydrostatic Transaxle

    Slide the cover over the shift lever. Hold the shift cover down, install the three mounting screws. Torque to between 90 and 120 inch pounds. This completes the servicing of the MTD 2 speed transaxle. 5-4. HYDROSTATIC TRANSAXLE. Figure 5-95.
  • Page 140 For Parts Call 606-678-9623 or 606-561-4983 3. Remove retaining ring from input shaft. See Figure 5-101. NOTE The washer under the retaining ring is factory selected. If you are repairing the unit, the max- imum end play is .010 and is adjusted with shim washers and checked with a feeler gauge under the retaining ring.
  • Page 141 For Parts Call 606-678-9623 or 606-561-4983 NOTE Housing couplings may seize to shaft splines. Use a puller to remove or GENTLY tap them for removal. 7. Remove disc brake and disc by removing a hex nut and lock washer on the rear of brake. Loosen hex nut on brake stop bolt.
  • Page 142 For Parts Call 606-678-9623 or 606-561-4983 10. After transaxle housing halves have been sep- arated, clean all grease from parts. See Figure 5-106. 9. Carefully pry halves apart in areas shown in NOTE Figure 5-104. When reinstalling screws into aluminum hous- ings, you should turn the screws counterclock- wise until they click into place and seat themselves before tightening them in the usual...
  • Page 143 For Parts Call 606-678-9623 or 606-561-4983 14. Disassemble differential by removing four socket head bolts and lock washers. See Fig- ure 5-110. Inspect differential gear (72 teeth) for any damage. Replace if necessary. NOTE The reduction gear also has a grease pocket. Upon reassembly, press bronze thrust bearing on reduction gear dowel pin.
  • Page 144 For Parts Call 606-678-9623 or 606-561-4983 19. Remove drive shaft and drive pinion (17 tooth) from housing. Inspect gear teeth for any dam- age. Replace if necessary. Also inspect splines on drive shaft for wear or damage. Replace if necessary. 20.

  • Page 145: Hydrostatic Transmissions

    For Parts Call 606-678-9623 or 606-561-4983 HYDROSTATIC TRANSMISSIONS 6-1. GENERAL. matching of torque and speed requirements by the hydrostatic transmission. For further information regarding this section, refer to the technical service video “Hydrostatic The gear transmission has only three points of Drive Systems.”...

  • Page 146: Model 7 Hydrostatic Transmission

    For Parts Call 606-678-9623 or 606-561-4983 2. Input speed. Faster input speeds have the 2. Check valves on the inlet side of the pump are capability to pump more fluid at the same open to the reservoir enabling the pump to swashplate angle.
  • Page 147 For Parts Call 606-678-9623 or 606-561-4983 6-2.3 Transmission Fluid. Check or add fluid to trans- 2. Unscrew the two screws holding the access mission as follows: cover located in front of the seat. 1. Unscrew the parking brake and relief valve 3.
  • Page 148 For Parts Call 606-678-9623 or 606-561-4983 2. If contaminate is observed on the reservoir/ CAUTION expansion tank screen, poor maintenance is indicated. Remove the reservoir/expansion Do not use high pressure water spray or steam tank, wash clean, dry and reinstall. If the to clean the hydrostatic transmission.
  • Page 149 For Parts Call 606-678-9623 or 606-561-4983 www.mymowerparts.com...
  • Page 150 For Parts Call 606-678-9623 or 606-561-4983 CAUTION 6-3.4 Typically a control lever, located on the top of the left fender, is connected to this pump and NEVER use a multiviscosity oil and ALWAYS controls both the speed and direction of the use a nondetergent oil.
  • Page 151 For Parts Call 606-678-9623 or 606-561-4983 6-3.6 To check or add fluid to the transmission: 1. Ensure that the fluid level is visible in the expansion tank. If fluid is not visible, add fluid 1. Unscrew the parking brake and relief valve to bring level to the LOWER mark of the knobs.
  • Page 152 For Parts Call 606-678-9623 or 606-561-4983 6-3.11 Expolded view of Sundstrand BDU-10S Transmission (Part Number 717-0940). See Figure 6-9. www.mymowerparts.com...
  • Page 153 For Parts Call 606-678-9623 or 606-561-4983 1. Oil tank disassembly. 2. Center section disassembly. a. Unscrew the cap. (This cap has a left-hand thread.) See Figure 6-10. a. Remove the allen head screws. See Fig- ure 6-12. b. Lift the center section off the transmission. b.
  • Page 154 For Parts Call 606-678-9623 or 606-561-4983 3. Cylinder block kit and thrust ball bearing disas- sembly. See Figure 6-16. c. Remove the gasket. See Figure 6-14. a. Lay the housing on its side. d. Remove locating pins. See Figure 6-15. b.
  • Page 155 For Parts Call 606-678-9623 or 606-561-4983 c. Remove the thrust ball bearings. See Fig- b. Remove the swashplate from the housing. ure 6-18. See Figure 6-20. 4. Swashplate and filter disassembly. c. Remove the thrust plate and thrust roller a. Remove the spring and washer. See Fig- from the swashplate.
  • Page 156 For Parts Call 606-678-9623 or 606-561-4983 d. Remove the slot guide and cradle bear- ings. See Figure 6-22. 5. Pump shaft and trunnion arm disassembly. a. Remove retaining ring. See Figure 6-24. b. Puncture oil seal and pry it out with screw- driver.
  • Page 157 For Parts Call 606-678-9623 or 606-561-4983 e. Remove trunnion arm. See Figure 6-28. c. Remove spacer. See Figure 6-26. Pry oil seal out with screwdriver. Take care not to damage the housing. See Figure 6- d. Tap the end of the pump shaft with a soft hammer lightly to slide it out from the hous- ing.
  • Page 158 For Parts Call 606-678-9623 or 606-561-4983 b. Remove spring and check valve (ball) from bore in center section. In removing check g. Press out journal bearing with soft ham- valve (ball), care should be taken that it mer. See Figure 6-30. does not fall into the closed loop passage.
  • Page 159 For Parts Call 606-678-9623 or 606-561-4983 7. Bypass valve disassembly. 8. Oil seal (center section) removal. Pry oil seal out with screwdriver. Take care not to damage a. Remove plug and bypass spool. See Fig- center section. See Figure 6-36. ure 6-34.
  • Page 160 For Parts Call 606-678-9623 or 606-561-4983 6-3.12 Assembly of Sundstrand BDU-10S. b. Install trunnion arm. See Figure 6-39. CAUTION c. Pump shaft inspection. Cleanliness is the primary means of insuring satisfactory transmission life. Take care to (1 Check seal surface, bearing surface, clean parts when assembling them.
  • Page 161 For Parts Call 606-678-9623 or 606-561-4983 Coat new oil seal lip with grease. See Fig- ure 10-43. g. Cover pump shaft with thin tape to protect oil seal lip. See Figure 10-44. 6-17 www.mymowerparts.com...
  • Page 162 For Parts Call 606-678-9623 or 606-561-4983 h. Press seal into housing bore. See Figure 2. Swashplate and filter assembly. 6-45. a. Check filter. Replace spring, washer and filter. See Figure 6-47. Install retaining ring in groove in housing. See Figure 6-46. b.
  • Page 163 For Parts Call 606-678-9623 or 606-561-4983 b. Place washer and spring on swashplate. See Figure 6-51. c. Place swashplate into housing keeping slot guide from moving with screwdriver. See Figure 6-49. c. Replace thrust ball bearing (motor). See Figure 6-52. 4.
  • Page 164 For Parts Call 606-678-9623 or 606-561-4983 c. Lay housing on its side and slide cylinder block kits into housing (pump, motor). See Figure 6-55. d. Check cylinder block kits for free rotation. See Figure 6-56. b. Check to be sure pistons are free in bores (pump, motor).
  • Page 165 For Parts Call 606-678-9623 or 606-561-4983 5. Center section inspection. c. Lubricate exposed face of cylinder block with clean hydraulic oil. See Figure 6-60. a. Examine wear surface of center section for Check locating pins (2 places) to place in excessive scratching or heavy wear pat- the housing.
  • Page 166 For Parts Call 606-678-9623 or 606-561-4983 e. Place center section onto housing. Take care not to damage center section and housing. See Figure 6-62. NOTE Longer screws are inserted in outer bores of center section. g. Tighten these screws equally and pull two sections (housing and center section) together completely.
  • Page 167 For Parts Call 606-678-9623 or 606-561-4983 b. Cover trunnion arm with thin tape to pro- tect oil seal lip. See Figure 6-68. Press seal into center section. See Figure 6-66. c. Press seal into housing. See Figure 6-69. 7. Check valve installation. 6.
  • Page 168 For Parts Call 606-678-9623 or 606-561-4983 c. Tighten plug. See Figure 6-72. Bypass valve installation. a. Replace O-ring if necessary. See Figure 6- b. Install spring, bypass spool and plug in that order. See Figure 6-74. 6-24 www.mymowerparts.com...

  • Page 169: Hydrostatic Transmission

    For Parts Call 606-678-9623 or 606-561-4983 b. Screw cap onto the housing. (This cap has a left-hand thread.) See Figure 6-77. c. Tighten plug. See Figure 6-75. 6-4. MODEL 310-0500/0750 INTEGRATED HYDROSTATIC TRANSMISSION. 9. Oil tank assembly installation. 6-4.1 General Description. A transaxle normally will not require servicing during the life of the vehi- a.

  • Page 170: Model 11 Hydrostatic Transmission

    For Parts Call 606-678-9623 or 606-561-4983 mum in both forward and reverse modes of 6-5. MODEL 11 HYDROSTATIC TRANSMISSION. operation. 6-5.1 The following paragraphs contain information 2. The IHT uses a variable pump with a maximum necessary for the disassembly, repair and displacement of 10cc per revolution, and a reassembly of the Eaton hydrostatic transmis- motor with a fixed displacement of 21cc per...
  • Page 171 For Parts Call 606-678-9623 or 606-561-4983 NOTE e. A charged pump option is available with a ball bearing input which is recommended The Eaton Model 11 is a self-purging pump. for overhung loads such as couplings, pul- leys, etc. 2. The charge pump draws oil from the reservoir or the final drive housing when the final drive 3.
  • Page 172 For Parts Call 606-678-9623 or 606-561-4983 mission case past the low pressure relief 1. Model number valve. 2. Date code 6. In the auxiliary circuit the fluid flows from the charge pump to a valve. This valve is an open 3.
  • Page 173 For Parts Call 606-678-9623 or 606-561-4983 6-29 www.mymowerparts.com...
  • Page 174 For Parts Call 606-678-9623 or 606-561-4983 Legend For Figure 6-81. 29. Cam Ring Insert 30. Coil Pin (5/16 Dia. x 3/84" Lg) 1. Socket Head Cap Screw 31. Pintle 2. Socket Head Cap Screw 32. Retaining Ring 3. Oil Seal 33.
  • Page 175 For Parts Call 606-678-9623 or 606-561-4983 2. Remove the bearing retaining ring and tap or press the output shaft inward. Drive or press the output bearing out from the motor body. Two types of output shaft bearings are used on Eaton light-duty transmissions—flow through or sealed.
  • Page 176 For Parts Call 606-678-9623 or 606-561-4983 plastic hammer so as not to damage aluminum cover. Lift the pintle assembly out. See Figure 6-87. NOTE Each ball must be replaced in the same bore from which it was removed. Use a suitable NOTE container for piston ball storage such as an egg carton or ice cube tray.
  • Page 177 For Parts Call 606-678-9623 or 606-561-4983 e. Install new backup rings nearest to the smooth piston face and O-rings in groove on a new piston. b. Inspect for any irregularities. Replace any Lubricate outer surface of pistons and defective parts. press (smooth face up) into bores of pintle to the bottom position.
  • Page 178 For Parts Call 606-678-9623 or 606-561-4983 Remove check balls and retaining rings. See Figure 6-92. NOTE On units with acceleration valves, see steps for n. Insert 3/16 inch diameter rod through the check valve removal. check valve body. Tap the rod against the check valve ball to dislodge the retaining Inspect check valve balls and retaining rings.
  • Page 179 For Parts Call 606-678-9623 or 606-561-4983 acceleration valve bodies slide freely in the bores and that the orifices are clear. s. Press the two balls against the accelera- tion valve bodies until the solid pin will clear. Press or drive the solid pin in so it is flush with or slightly below the pintle sur- face.
  • Page 180 For Parts Call 606-678-9623 or 606-561-4983 piston assembly must remain intact as the ball pistons are matched to the pump rotor. NOTE If complete disassembly, inspection and reas- sembly of pump rotor is necessary. Follow same procedures as for motor rotor, paragraph 6-5.5, steps 5 through 7.
  • Page 181 For Parts Call 606-678-9623 or 606-561-4983 CAUTION Do not mark the roll carrier in such a manner that would damage the carrier surface. Mark the top of carrier indicating which side is up. g. Remove the carrier, carrier drive pin, lower snap ring and pump plate.
  • Page 182 For Parts Call 606-678-9623 or 606-561-4983 Remove the six carrier rolls and top snap ring from the input shaft. See Figure 6-109. CAUTION Do not pound on the bearing puller while removing the charge pump body. Apply a steady pull only, do not damage the bore for g.
  • Page 183 For Parts Call 606-678-9623 or 606-561-4983 k. Inspect the carrier, rolls, inner race contact e. Use a sharp, narrow edged tool to pierce areas in the charge pump housing and the top metal part of the oil seal. Remove pump plate. If any irregularities are found, seal from the cover.
  • Page 184 For Parts Call 606-678-9623 or 606-561-4983 2. Press new dowel pin through the shaft leaving 1-1/4 inch of dowel extending from control shaft. See Figure 6-116. (3) Press out damaged dowel pin through access hole, and remove control shaft and washer.
  • Page 185 For Parts Call 606-678-9623 or 606-561-4983 6. Lightly lubricate new square cut seal and install in seal groove in cover. See Figure 6- 120. NOTE Stamping on cover indicates if charge pump rotation is clockwise or counterclockwise. 7. Install pump plate or port plate on cover. Either side of the pump plate may face the cover regardless of input rotation.
  • Page 186 For Parts Call 606-678-9623 or 606-561-4983 9. For charge pumps with bushings, install snap ring in lower groove (against plate) of input shaft. See Figure 6-122. NOTE For correct carrier rotation the leading edge of carrier must rotate in the same direction as the input shaft.
  • Page 187 For Parts Call 606-678-9623 or 606-561-4983 11. Install carrier over input shaft with side marked up facing up. Be sure keyway in carrier fits over carrier drive pin in input shaft. See Figure 6-125. CAUTION Excessive pressing or force on oil seal may cause damage to rubber sealing portion or may distort counterbore of housing.
  • Page 188 For Parts Call 606-678-9623 or 606-561-4983 18. On charge pumps with ball bearings, install the lower snap ring. With the cover assembly sep- arated from the body and the input shaft prop- erly supported, press the input shaft bearing into position against the lower snap ring. Install the upper snap ring against the inner bearing race.
  • Page 189 For Parts Call 606-678-9623 or 606-561-4983 NOTE Keep rotor assembly intact with wide rubber band. Remove rubber band after installing rotor assembly in cover assembly. 24. Install pump rotor by aligning the slot in the pump rotor with the input shaft cross pin. See Figure 6-133.
  • Page 190 For Parts Call 606-678-9623 or 606-561-4983 26. Lightly grease a new square cut seal and install it in the groove in the housing. See Fig- ure 6-135. 27. Install motor rotor assembly onto pintle. NOTE Transmissions with sealed bearings incorpo- rate an oil seal under the output bearing.
  • Page 191 For Parts Call 606-678-9623 or 606-561-4983 29. Install the output bearing by positioning bear- for a short time to purge trapped air from ing on the body and pressing on the outer the system. Stop, shut off engine and bearing race to the bottom position in the body. recheck fluid level.
  • Page 192 For Parts Call 606-678-9623 or 606-561-4983 Hydrostatic Transmission Removal and Installation 1. Raise the rear wheels off the ground 15. Roll the “V” belt off of the hydrostatic drive pul- ley. 2. Support the bottom of the hydrostatic transmis- sion. 16.
  • Page 193 For Parts Call 606-678-9623 or 606-561-4983 19. Remove the hairpin securing the hydrostatic relief lever to the hydrostatic transmission. See figures 6-141 and 6-142. 20. Set the hydrostatic relief lever aside. See fig- ures 6-141 and 6-142. 22. Remove both self tapping screws securing the front of the hydrostatic transmission to the front hydrostatic support bracket using 1/2"...
  • Page 194 For Parts Call 606-678-9623 or 606-561-4983 27. Slowly lower the hydrostatic transmission from the tractor. See figure 6-147. 25. Remove the brake extension spring from the brake rod using a pair of vice grips. NOTE REINSTALL HYDROSTATIC REVERSE ORDER ABOVE. The hydrostatic transmission can be tilted to assist brake spring removal.
  • Page 195 For Parts Call 606-678-9623 or 606-561-4983 6-6. BRAKE ADJUSTMENT 5. Tighten lock nut. SERIES HYDROSTATIC. 6-8. BRAKE ADJUSTMENT 800 SERIES TRAN- 6-6.1 The brake is located inside the frame next to SAXLE. the right rear wheel. 6-8.1 The brake is located on the left side of the tran- 6-6.2 To adjust the brake, remove the cotter pin.
  • Page 196 For Parts Call 606-678-9623 or 606-561-4983 BRAKE ADJUSTMENT 4. If the measurement is not 1/4" shorter then the first measurement, tighten the hex jam nut until 1998 800 Series Hydrostatic (See figure 6- you have a 1/4" difference in the two measure- 151) ments.

  • Page 197: Series

    For Parts Call 606-678-9623 or 606-561-4983 900 SERIES www.mymowerparts.com...

  • Page 198: Hydrostatic Transmission Control Adjustment7-2

    For Parts Call 606-678-9623 or 606-561-4983 NOTE Hydrostatic Transmission Control Adjust- ment. If the tractor creeps while the hydrostatic con- trol lever is in neutral the controls at the hydro- Refer to Figures 7-2 and 7-3. static transmission must be adjusted. 1.
  • Page 199 For Parts Call 606-678-9623 or 606-561-4983 3. Move the cam plate forward or backward by 9. Tighten both jam nuts on the tie rod ends. turning the tie rod clockwise or counterclock- wise until the alignment hole in the slide 10.

  • Page 200: Hydraulic Lift Valve Adjustment7-4

    For Parts Call 606-678-9623 or 606-561-4983 b. Check the engine speed with a tachome- NOTE ter. Engine should be running at 3500 to 3600 RPM. Some 955 hydrostatic tractors have been found to have a variance in ground speed, c. Move the hydraulic lift lever all the way especially on uneven terrain.

  • Page 201: Power Take Off (Pto) Adjustment7-5

    For Parts Call 606-678-9623 or 606-561-4983 7-1.2 Power Takeoff (PTO) Adjustment. The PTO cable can be adjusted at either end. To adjust, loosen the nut on the inside and tighten the nut on the outside to compensate for cable stretch. Adjust until the idler depresses the safety switch plunger within 1/8 inch of bottoming out in the switch when the PTO is in the OFF position.

  • Page 202: Undercarriage Locks7-6

    For Parts Call 606-678-9623 or 606-561-4983 7-1.2 Undercarriage Locks. 7-1.6 Drive Shaft Removal. The maximum down position can be set on the undercarriage for the mowing deck. See Figure 1. Loosen the square head set screw on the front 7-9. There are six positions. This adjustment universal joint.

  • Page 203: Three Point Hitch Assembly7

    For Parts Call 606-678-9623 or 606-561-4983 7-1.7 Three Point Hitch Assembly (See Figure 7-13). 5. Attach the ferrules to the rear lift shaft assem- bly and secure with two hairpin cotters. The three point hitch is needed for the rotary tiller, disc, cultivator and moldboard plow.

  • Page 204: Leveling The Deck (Optional Equipment)7-8

    For Parts Call 606-678-9623 or 606-561-4983 11. Tighten the outside nuts on the hook bolts until If adjustment is needed, proceed as follows: there is approximately one inch of play in the center of the chains. 1. Remove the hairpin clip and flat washer from the bottom of the adjustable lift link on the right NOTE side of the deck.
  • Page 205 For Parts Call 606-678-9623 or 606-561-4983 MODEL 999 Problem: It has been reported on a few units Solution: Replace defective hose by ordering that after approximately 20 minutes of opera- part number 727-0218 or place hose clamps tion a hydraulic hose part number 727-0218 on each end of the hose under warranty.
  • Page 206 For Parts Call 606-678-9623 or 606-561-4983 7-10 www.mymowerparts.com...

  • Page 207: Cutting Decks

    DECK WHEEL ADJUSTMENT: The deck owner’s manual. The blade part number is wheels on all lawn and garden tractors should stamped and is found stamped into the back be adjusted so they will be 1/2" to 1" off the side of the blade.
  • Page 208 All MTD belts are constructed www.mymowerparts.com...
  • Page 209 For Parts Call 606-678-9623 or 606-561-4983 according to engineered drawings for the can cause too slow of a blade speed. Grass in proper performance, not by chance to size. the spring has a high moisture content and sometimes it is just too wet. This too can affect To begin a repair on any mower the first thing the quality of cut.
  • Page 210 For Parts Call 606-678-9623 or 606-561-4983 Attaching the Deck. Proceed as follows: 1. Assemble deck wheels. 2. Move cutting deck wheels to the lowest cutting height position (move levers all the way for- ward). 3. Move blade engagement lever to the disen- gaged position (all the way back).
  • Page 211 For Parts Call 606-678-9623 or 606-561-4983 b. Pull brake cable toward the front of the tractor and line it up with a hole in the brake bracket. Attach cable to the next hole toward the rear of the tractor using clevis pin, flat washer 1/4 inch ID and hair- pin clip.

  • Page 212: Model 931 44-Inch Rear Discharge Mowing Deck8

    For Parts Call 606-678-9623 or 606-561-4983 8-1.1 Deck Belt Removal and Replacement. Table 8-1. Model 194-935 Blade Mounting Torques WARNING BOLT SIZE MINIMUM MAXIMUM Disconnect spark plug wire and ground it INCH INCH against engine. Block the wheels of the unit. POUNDS POUNDS 3/8-inch diameter...
  • Page 213 For Parts Call 606-678-9623 or 606-561-4983 www.mymowerparts.com...
  • Page 214 For Parts Call 606-678-9623 or 606-561-4983 www.mymowerparts.com...
  • Page 215 For Parts Call 606-678-9623 or 606-561-4983 folded back over the deck for shipping pur- poses. Unfold them at this time. NOTE Swing blades are available for the 44-inch side or the 44-inch rear discharge deck, Model 931 or 935. 8-2.2 Attaching the Deck Links (if so equipped).
  • Page 216 For Parts Call 606-678-9623 or 606-561-4983 NOTE If the two front hanger brackets on your unit are adjustable, adjust them to be the same length as the rear. 9. Move tractor lift lever all the way forward to the lowest position. 10.
  • Page 217 For Parts Call 606-678-9623 or 606-561-4983 1. Check tire pressure in all four tires. Recom- 4. Loosen idler pulley enough so that the belt can mended pressure is 12 psi. be removed from between the two pulleys. 2. On a level surface, engage the PTO and lower 5.
  • Page 218 For Parts Call 606-678-9623 or 606-561-4983 8-12 www.mymowerparts.com...
  • Page 219 For Parts Call 606-678-9623 or 606-561-4983 8-3.1 Timing the Blades. For blade timing, refer to 8-3.5 Setting the Cutting Height. For cutting height paragraph 8-2, Model 931. setting, refer to paragraph 8-2, Model 931. 8-3.2 Attaching the Deck Links (if so equipped). 8-3.6 Deck Belt Removal and Replacement.
  • Page 220 For Parts Call 606-678-9623 or 606-561-4983 NOTE 8-4.6 Deck Belt Removal and Replacement. If disassembled for any reason, tighten blade 1. Remove two hex screws holding belt guard to spindle nuts for the 22 inch blades to between timing belt cover. 80 and 100 ft-lbs.
  • Page 221 For Parts Call 606-678-9623 or 606-561-4983 846. It is now 5/8 inch diameter and includes spacers on the outer edges of the rod. 8-5.3 The 9 style unit with a 46-inch deck uses a 12.75 inch cable, part number 727-0445; the other 46-inch decks use a 12.56 inch cable, part number 727-0426.
  • Page 222 For Parts Call 606-678-9623 or 606-561-4983 8-16 www.mymowerparts.com...
  • Page 223 For Parts Call 606-678-9623 or 606-561-4983 3. Optional sand blades are available as follows: 8-5.7 Attaching the Deck. a. Center blade part number 742-0497 (1 per NOTE unit). If your unit has an electric clutch, disregard b. Outside blades part number 742-0498 (2 steps 1, 8 and 10.
  • Page 224 For Parts Call 606-678-9623 or 606-561-4983 5. Move tractor lift handle forward to the lowest 10. Check all belt guards for clearance. The belt position. guards must be between 1/16 and 1/8 inch away from the belt when the PTO lever or 6.
  • Page 225 For Parts Call 606-678-9623 or 606-561-4983 6. Check to be certain the front of the deck is 1/4 8-5.10 Belt Removal and Replacement. to 3/8 inch lower than the rear of the deck. If it is not, adjust the two front links to obtain this 1.
  • Page 226 For Parts Call 606-678-9623 or 606-561-4983 MODEL SERIES 800 “P” 50-INCH SIDE DIS- 18-6.1 Attaching the Deck Links. For deck links CHARGE DECK (See Figure 8-28). attachment, refer to paragraph 8-5, 46-inch deck. 8-20 www.mymowerparts.com...
  • Page 227 For Parts Call 606-678-9623 or 606-561-4983 8-6.2 Attaching the Deck. the rod which is through the deck stabilizer by removing the hairpin clips and sliding out the NOTE rod. Replace the rod and hairpin clips. See Fig- ure 8-30. If your unit has an electric clutch, disregard steps 1, 10 and 12.
  • Page 228 For Parts Call 606-678-9623 or 606-561-4983 10. Replace the round belt guard by the idler pul- 8-6.4 Setting the Cutting Height. Select the position ley (hex side down). Replace the hex bolts for the tractor lift lever which gives the desired (belt keepers) by the engine pulley.
  • Page 229 For Parts Call 606-678-9623 or 606-561-4983 c. Remove the two 5/16 inch bolts, lock washers 3. The blade can be tested for balance by balanc- and nuts holding the blade to the adapter. See ing it on a round shaft screwdriver. Removal Figure 8-35.
  • Page 230 For Parts Call 606-678-9623 or 606-561-4983 8-24 www.mymowerparts.com...
  • Page 231 For Parts Call 606-678-9623 or 606-561-4983 8-7.1 The 50 inch tri-blade rotary mower cutting deck 5. Remove hairpin cotters and clevis pins from assembly for the 995 series garden tractor is each side of the deck roller bracket. Raise classified as a quick connect version and deck one notch on each side.
  • Page 232 For Parts Call 606-678-9623 or 606-561-4983 NOTE When replacing the belt, use only an O.E.M. belt. Order part number 754-0197 from your nearest authorized service dealer. 1. Remove mowing deck cover. 2. Disconnect spring from idler to obtain slack on the belt.

  • Page 233: Model 824 Electric Sleeve Hitch8

    Preparation The Model 824 Electric Sleeve Hitch is designed for use on FastAttach™ compatible Garden Tractors only. See Figure 8-42. 2. Remove the battery hold down strap. 3. Disconnect the negative battery cable from the battery terminal by removing the carriage bolt...
  • Page 234 For Parts Call 606-678-9623 or 606-561-4983 8. Reaching through the battery tray opening, position the 13" support rod between the holes where the shoulder bolts attached. 9. Fasten the support rod to the tractor frame by passing each shoulder bolt through a bellville washer, side frame and into each end of the support rod using two 15/16"...
  • Page 235 For Parts Call 606-678-9623 or 606-561-4983 6. Detent the dash with a punch, and form a pilot hole. Drill a 1/2" hole through the dash. NOTE Make certain the wiring harness is not dam- aged while drilling. 8. Clean any burrs from the hole. Remove the jam nut from the toggle switch.
  • Page 236 For Parts Call 606-678-9623 or 606-561-4983 These holes will be used to mount the under- carriage for the hydraulic pump. 18. Route the harness up the inside edge of the fender and pass it through the hitch plate opening on the left side of the frame, adjacent to the underside of the cup holder.

  • Page 237: Inch Hydraulic Tiller Attachment8

    30. Gently pull the hitch harness forward, remov- ing all excess slack. 30-INCH HYDRAULIC TILLER ATTACHMENT OEM-190-825 For FastAttach™ Compatible Garden Tractors Only The use of front weights (included with the tiller) is required for safe operation of the tiller attachment.
  • Page 238 For Parts Call 606-678-9623 or 606-561-4983 Component Layout NOTE 1. Position the tiller assembly on a smooth and The shouldered side of the idler pulley should level surface about 10' to the rear of the tractor, face the undercarriage. The belt keeper should with the tines facing away from the tractor.
  • Page 239 For Parts Call 606-678-9623 or 606-561-4983 Each hose has female flare fittings on both ends. One end of each hose will attach to the male flare fittings on the hydraulic pump. 1. Install one end of the larger diameter hose onto the larger male flare fitting of the hydraulic pump using a 1-1/8"...
  • Page 240 Install the electric sleeve hitch kit using the instructions which are included with it. Addi- tional installation instructions and a video are available from MTD. The sleeve hitch “U” bracket and hitch bracket 2. With the weight hold down rod facing up, posi-...
  • Page 241 For Parts Call 606-678-9623 or 606-561-4983 sleeve hitch in order to attach the hydraulic tiller. NOTE 1. If the hitch is installed on the tractor, discon- Take note of the positions of the spacers and nect the motor pigtail from the sleeve hitch har- washers.
  • Page 242 For Parts Call 606-678-9623 or 606-561-4983 Tiller Installation to the Tractor 1. Set the deck height lever to it’s highest posi- tion. 2. Remove the six hairpin clips and four washers from the mounting points of the undercarriage. See Figure 8-66. 7.
  • Page 243 For Parts Call 606-678-9623 or 606-561-4983 NOTE If necessary, adjust the tiller stand rod until the correct height is achieved. 13. Remove the hairpin clips and clevis pins which lock the latches into position on the tiller hitch link assembly. 14.
  • Page 244 For Parts Call 606-678-9623 or 606-561-4983 the washers should be held in place outside of the slotted brackets by the hairpin clips. 25. Check both hydraulic hoses where they pass through the hitch assembly. Make certain that they are relaxed and not binding or kinked. NOTE Make certain that the hoses will not be dam- aged by the movement of the sleeve hitch, or...

  • Page 245: Hydraulic Tiller Component Replacement8

    For Parts Call 606-678-9623 or 606-561-4983 HYDRAULIC TILLER COMPONENT REPLACEMENT meet these standards WILL void the tiller’s warranty. 4. Raise the tiller completely, start the tractor, drive it to level ground. 5. Run the tiller briefly to test it and purge the hydraulic system.
  • Page 246 There is no warranty for commercial use. The nents. See Figure 8-78. rest of the tiller attachment (including the hoses) is covered under MTD’s two year war- ranty with a 90 day no-fault clause. Beyond the first 90 days, hoses are not covered against damage other than defects in material or work- manship.
  • Page 247 A test kit is available through MTD and its Cen- Do not operate a hydraulic system that has tral Distributors. A security deposit and small leaks (or damage that may result in a sudden fee will be charged.
  • Page 248 For Parts Call 606-678-9623 or 606-561-4983 2. Hold each 90-degree elbow with one wrench NOTE while loosening the fitting that is attached to it with the other wrench. Record the orientations of the valve, filter head, and 90 degree elbows. 3.
  • Page 249 For Parts Call 606-678-9623 or 606-561-4983 7. Check the hydraulic fluid level and fill as nec- essary. Run the tiller briefly to purge any air from the system. Check the hydraulic fluid level and fill as necessary. Hydraulic Pump Removal 1.
  • Page 250 For Parts Call 606-678-9623 or 606-561-4983 5. Extend the tiller stand rod and lock it into posi- 8. Release the right side latch and push the trac- tion using the hairpin clip and clevis pin. tor forward until the right side latch releases from the hitch link assembly.
  • Page 251 For Parts Call 606-678-9623 or 606-561-4983 10. Lower the deck height lever to its lowest posi- 13. Pivot the lift motor assembly upward so that it tion. See Figure 8-93. clears the front cross member of the hitch link assembly. Push the tractor forward until the lift motor assembly clears the cross member then gently lower the lift motor assembly.
  • Page 252 For Parts Call 606-678-9623 or 606-561-4983 19. Remove the large hose from the pump using a 1-1/8" wrench and a 1-1/4" wrench. 20. Remove the small hose from the pump using a 1" wrench and a 11/16" wrench. See Figure 8- 16.
  • Page 253 For Parts Call 606-678-9623 or 606-561-4983 NOTE 7. Remove the two large nuts that hold the hydraulic motor to the tiller assembly using two Elevate the hoses when disconnecting and col- 3/4" wrenches. See Figure 8-102. lect any spilled fluid in a catch pan. 4.
  • Page 254 For Parts Call 606-678-9623 or 606-561-4983 lic motor using a pair of 9/16" wrenches. See Figure 8-105. 9. Remove the hydraulic motor and place it in an oil pan. See Figure 8-104. 2. Support the tine adapter assembly using a one foot 2x4 with a “V”...
  • Page 255 For Parts Call 606-678-9623 or 606-561-4983 4. Slide the inner bearing cover to the right to access the two hex nuts securing the bearing flange to the tiller housing. 5. Remove both hex nuts securing the bearing flange to the tiller housing using two 1/2" wrenches.
  • Page 256 For Parts Call 606-678-9623 or 606-561-4983 4. Remove the through-bolt that holds the tine adapter assembly to the tine shaft using two 9/16" wrenches. See Figure 8-111. 9. Remove the bearing, O ring seal, and tine shaft from the tiller housing. 5.

  • Page 257: Dozer Blade8

    For Parts Call 606-678-9623 or 606-561-4983 46" DOZER BLADE OEM-190-822 1. Identify the different components. See Figure 8-115. Figure 8-117. 4. Align the holes in the pivot plate with the holes Figure 8-115. in the welded brackets. Insert the pivot shaft through the holes and secure with hairpin clips.
  • Page 258 For Parts Call 606-678-9623 or 606-561-4983 Figure 8-121. Figure 8-119. 10. Attach the channel assembly to the tractor by 6. Insert the bolt through the hole in the top of the placing the end of the channel into the pivot blade and reassemble the washer and the support bracket.
  • Page 259 For Parts Call 606-678-9623 or 606-561-4983 Figure 8-125. Figure 8-123. To Stiffen the Blade Trip Action: 12. Remove the clevis pin and hairpin clip from the upper lift handle. Place the upper lift handle 1. Loosen the hex nut on the spring bolt. over the lower lift handle assembly.
  • Page 260 For Parts Call 606-678-9623 or 606-561-4983 8-54 www.mymowerparts.com...
  • Page 261 For Parts Call 606-678-9623 or 606-561-4983 POWER EQUIPMENT DICTIONARY MOWER TERMS CPSC Mandatory Blade Safety Standards: Since July 1, 1982, all manufacturers produce only mowers that comply with the Consumer Products Full Baffled Housing: A front and rear welded Safety Commission mandatory requirements. Basi- housing underneath the deck to create an entire cally, the blade must stop (either with the engine circular deck.
  • Page 262 For Parts Call 606-678-9623 or 606-561-4983 Deluxe Throttle Control: Allows operator to set 4-Wheel Steering (All Wheel Steer): Provides engine speed without slipping out of position. Has maximum maneuverability by allowing all four ratchet-setting throttle adjustment. Handle- wheels to turn while steering. Permits near hairpin Mounted Clutch: Makes engagement of self-pro- turns, the tractor neatly pivots to allow close trim- pelled mechanism easier.
  • Page 263 MPH: Miles per hour speed of air flowing out of the hitch with a single pin. unit. 3 Point Hitch: Used on garden tractors. After CFM: Cubic feet of air per minute flowing out of the mounting hitch, attachments mount to hitch at blower chute.
  • Page 264 For Parts Call 606-678-9623 or 606-561-4983 Gasoline: We recommend regular unleaded gas. Automotive Type Air Filter (Paper Type): A Do not leave gas in tank over the winter unless larger filter area (90 sq. inches) than conventional fuel stabilizer is used; start each season with fresh oil bath sponge filters.
  • Page 265 For Parts Call 606-678-9623 or 606-561-4983 Top Breather: Prevents oil overflow and maintains Case Drain Line (Return Line): A line returning lubrication of vital parts when mowing alongside fluid from the component housing to the reservoir. steep grades in either direction at any safe angle. Muffler Deflector: Protects operator.
  • Page 266 For Parts Call 606-678-9623 or 606-561-4983 Inlet Line: A supply line to the pump. Scoring: Scratches in the direction of motion of mechanical parts caused by abrasive contami- Integrated Hydrostatic Transaxle (IHT): The nants. combination of a hydrostatic transmission and gear case in one housing to form a complete transaxle.
  • Page 267 For Parts Call 606-678-9623 or 606-561-4983 MTD S ERVICE P.O. Box 361131 • Cleveland, Ohio 44136-0019 © Copyright 2002 Form No. 770-10578 $14.95 www.mymowerparts.com...

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