MTD 700 Series Professional Shop Manual
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MTD 700 Series Professional Shop Manual

700 series riding tractors
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See also: Shop Manual , Owner's Manual
FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983
Professional Shop Manual
700 Series Riding Tractors
NOTE: These materials are for use by trained technicians who are experienced in the service and repair of outdoor power
equipment of the kind described in this publication, and are not intended for use by untrained or inexperienced individuals.
These materials are intended to provide supplemental information to assist the trained technician. Untrained or inexperi-
enced individuals should seek the assistance of an experienced and trained professional. Read, understand, and follow all
instructions and use common sense when working on power equipment. This includes the contents of the product's Oper-
ators Manual, supplied with the equipment. No liability can be accepted for any inaccuracies or omission in this publication,
although care has been taken to make it as complete and accurate as possible at the time of publication. However, due to
the variety of outdoor power equipment and continuing product changes that occur over time, updates will be made to these
instructions from time to time. Therefore, it may be necessary to obtain the latest materials before servicing or repairing a
product. The company reserves the right to make changes at any time to this publication without prior notice and without
incurring an obligation to make such changes to previously published versions. Instructions, photographs and illustrations
used in this publication are for reference use only and may not depict actual model and component parts.
© Copyright 2010 MTD Products Inc. All Rights Reserved
MTD Products Inc. - Product Training and Education Department
4
FORM NUMBER - 769-06667
11/2010
www.mymowerparts.com

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Summary of Contents for MTD 700 Series

  • Page 1 Instructions, photographs and illustrations used in this publication are for reference use only and may not depict actual model and component parts. © Copyright 2010 MTD Products Inc. All Rights Reserved MTD Products Inc. - Product Training and Education Department...
  • Page 2 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 www.mymowerparts.com...

  • Page 3: Table Of Contents

    Description of the 700 series ........
  • Page 4 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Chapter 5: Auto-drive CVT Drive and Brake System 35 About this chapter ..........35 About the variable speed drive system .
  • Page 5 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Chapter 7: Electrical System 89 Introduction ..........89 OCR Module .
  • Page 6 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Conductance testers ......... 132 Battery discharge test .

  • Page 7: Chapter 1: Introduction

    • Common sense in operation and safety is assumed. • In no event shall MTD or Cub Cadet be liable for poor text interpretation, or poor execution of the proce- dures described in the text. • If the person using this manual is uncomfortable with any procedures they encounter, they should seek the help of a qualified technician or Cub Cadet Technical Support.

  • Page 8: Assembly

    Description: A new step-through rider platform was introduced for the ‘05 mowing season. It was designated as the 700 series rider. It is seen across many of the MTD brands and private labels. There are also several hood configurations.The serial number and date codes are the keys to obtaining proper parts and service information.

  • Page 9: Model And Serial Numbers

    • Deck Engagement: The PTO belt is engaged on the 700 series using a lever on the right fender. Model and Serial Numbers The model and serial number tag can be found under the seat.
  • Page 10 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor www.mymowerparts.com...

  • Page 11: Chapter 2: Engine Related Parts

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Engine Related Parts CHAPTER 2: ENGINE RELATED PARTS This manual will cover the engine accessories that are manufactured by MTD Products. IMPORTANT: Refer to the engine manufacturer’s manual for engine specific service information. Muffler The engine style on the rider will determine the steps needed to replace the muffler.

  • Page 12: Fuel Tank Removal/Replacement

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor For twin cylinder engines: Remove the two nuts that secure each exhaust pipe to the cylinder head. See Figure 2.3. Remove the muffler from the engine. Install the muffler by following the above steps in Remove these reverse order.
  • Page 13 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Engine Related Parts Cut the plastic tie that secures the fuel tank to the gas tank support bracket. See Figure 2.4. Fuel tank plastic tie Figure 2.4 If you did not drain the fuel, raise the fuel tank up off Deck lift cable the support bracket high enough to allow you to Hair pin clip...
  • Page 14 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor www.mymowerparts.com...

  • Page 15: Chapter 3: Steering And Front Axle

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Steering and Front Axle CHAPTER 3: STEERING AND FRONT AXLE STEERING This section will cover: • Inspection of steering components • Changing the front wheel bearings • Inspecting and removing the axles • Replacing a stamped steel pivot bar •...

  • Page 16: Front Wheel Removal And Axle Bearing Inspection

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Front wheel removal and axle bearing inspection The wheel bearings are accessible by prying-off the hub-cap, then removing the cotter pin and flat washer that retain the front tires. See Figure 3.2.

  • Page 17: Right Front Axle Removal

    Replace any single-use fasteners (push-on caps and Flange Bearing cotter pins) with new ones on reassembly. Lubricate all friction surfaces with grease such as MTD Figure 3.6 P/N 737-0300A upon reassembly. Tighten the steering arm clamp bolt to a torque of 200- 260 in-lb.
  • Page 18 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor To replace the pivot bar: Remove the hood and any side panels. NOTE: Although it is not strictly necessary, pivot bar removal may be easier if the hood, side panels, and front grill assembly are removed prior to servicing the pivot bar.

  • Page 19: Installation Notes

    • Replacing all of the plastic bushings while the pivot bar is disassembled makes economic and mechanical sense. • Grease all moving parts on reassembly, using MTD P/N 737-0300A (Benelene), or similar grease. www.mymowerparts.com...

  • Page 20: Steering Gear Inspection

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Steering Gear Inspection Steering Shaft It is good practice to check the steering gear whenever a tractor is in for repair: See Figure 3.11. Pinion Gear • Check the alignment in the straight-ahead position.

  • Page 21: Steering Shaft Replacement

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Steering and Front Axle Steering Shaft Replacement Steering shaft support Remove the steering wheel cap using a screwdriver hex screws Remove the hex bolt and bell washer that holds the steering wheel to the steering shaft using a 1/2” wrench.

  • Page 22: Steering Gear Replacement

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Steering Gear Replacement If the steering gear teeth are damaged or missing, the steering gear will need to be replaced. To make the repair easier, consider moving the fuel tank out of the way and removing the fuel tank brace prior to starting the job. Also consider disconnecting the wiring harness at the engine connector and moving it out of the way.
  • Page 23 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Steering and Front Axle Spacer With the stabilizer plate removed, the steering gear, and spacer can be removed. See Figure 3.17. Figure 3.17 There is a removable bushing between the stud on the Bushing Steering Link Rod steering gear and the steering link rod.

  • Page 24: Steering Link Rod Replacement

    • Apply grease such as MTD P/N 737-0300A (Benelene), or anti-seize compound, to the friction surfaces and teeth of the steering gear on assembly. •...
  • Page 25 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Steering and Front Axle Steering Link Rod Replacement If the right wheel strikes an object hard enough, the steering link could bend. If the steering link rod is bent, Flanged Lock Nut inspect the other components for damage and replace as necessary.

  • Page 26: Front Wheel Alignment

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Front wheel alignment Normally a tractor will only be out of alignment if it has been in a accident and a component has been bent or damaged. Another need for an alignment would be when steering or front end components are being serviced.
  • Page 27 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Steering and Front Axle If the steering wheel needs adjustment: Remove the steering wheel cap with a screwdriver. See Figure 3.23. Using a socket remove the hex nut and bell washer that fastens the steering wheel to the shaft. Remove the steering wheel and turn it until the spokes are centered.
  • Page 28 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor www.mymowerparts.com...

  • Page 29: Chapter 4: Body Panels

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Body Panels CHAPTER 4: BODY PANELS What is covered by this chapter The intent of this chapter is to describe the removal and disassembly of the major body panels on the tractor. • Hood •...
  • Page 30 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Rotate each headlight lamp socket to release them from the grill assembly. See Figure 4.2. Bayonet style connector Figure 4.2 Cut the plastic wire tie that secures the headlight harness to the hood bracket.

  • Page 31: Hood Components

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Body Panels Hood components Headlight bezels, grills, pivot brackets and other parts attach to the hood using screw fasteners. The many variet- ies of hood styles does not allow a thorough description of procedures in this service manual.

  • Page 32: Seat Removal

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Seat Removal NOTE: The fenders can be removed with the seat in place. You only need to remove the seat if you are replac- ing it. Depending upon the model there are four ways that the seat may be mounted on the rider.

  • Page 33: Seat Bracket Removal

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Body Panels Seat bracket removal Tilt the seat up. Remove the two wiring harness connectors from the seat safety switch. See Figure 4.7. Wiring Harness Connectors Figure 4.7 Using a screwdriver or pliers, pry the extension spring from the rear of the seat mounting bracket.

  • Page 34: Fender Removal

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Fender Removal Removal procedures for fenders are very similar on all variants. NOTE: The battery will be removed in this procedure. Review the Operator’s Manual and the Chapter on Elec- trical Systems for important safety information about handling batteries before proceeding.
  • Page 35 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Body Panels Locate the two hex head screws that attach the fender to the lower frame. See Figure 4.11. NOTE: These fasteners are under the safety decal adhered to the center of the fender between the operators legs.
  • Page 36 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Remove the extension spring that attaches between the shift lever and the hole in the seat frame bracket below the left fender. See Figure 4.14. Extension Spring attached through hole in frame Figure 4.14...

  • Page 37: Dash Panel

    The upper portion is molded to accommodate the many different hood designs used on the 700 series riders. The steel portion comes in several styles, some designed to accommodate the RMC (mow in reverse) module and some without. You can replace the upper portion of the dash without removing the lower portion.

  • Page 38: To Remove The Lower Dash

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor To remove the lower dash Remove the upper dash. (see above) Remove the steering wheel Locking tabs Remove the cap from the center of the steer- ing wheel. See Figure 4.18.
  • Page 39 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Body Panels Mark ferrule for installation Remove the choke/throttle lever following the direc- tions in Chapter Two. Remove the parking brake lever. NOTE: On some models this is also used as a speed con- trol lever.
  • Page 40 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Hex cap screws Remove the two hex cap screws securing the lower dash to the right frame of the rider. See Figure 4.24. Figure 4.24 Hex cap screws Remove the two hex screws securing the lower dash to the left side of the frame.

  • Page 41: Chapter 5: Auto-Drive Cvt Drive And Brake System

    Auto-Drive CVT Drive System CHAPTER 5: AUTO-DRIVE CVT DRIVE AND BRAKE SYSTEM About this chapter The drive and brake systems for the 700 Series tractor are combined. There are two reasons for this: • The brake is supplied with the transaxle.

  • Page 42: About The Variable Speed Drive System

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor About the variable speed drive system There are two drive belts in the system. A long drive Variable Speed Pulley belt transfers power from the engine crankshaft to the lower sheave of the variable-speed pulley.

  • Page 43: Externally Repairable Drive System Problems

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Auto-Drive CVT Drive System Externally repairable drive system problems: Most of the problems listed in this section will result in a customer complaint of low power or low ground speed. If the tractor is difficult to push, check the brakes. Engine performance: •...
  • Page 44 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Double idler Check the drive belts. Belt inside of guides • In normal use, drive belts typically last for years without problems. • If the belt fails prematurely, identify and correct the cause of the belt failure before returning the tractor to service.

  • Page 45: Indications That A Transaxle Is Not Warrantable

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Auto-Drive CVT Drive System Indications that a transaxle is not warrantable Anything that would indicate misuse, abuse, neglect, accident, improper maintenance, alteration, vandalism, theft, fire, water or damage because of other peril or natural disaster will render the transaxle non-warrantable even though it is within the normal warranty period.

  • Page 46: Brake Adjustment

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor If the parking brake does not engage, check the fol- lowing: Check for a bent parking brake rod where it passes down through the dash. See Figure 5.10. Check that the ferrule is connected to the brake Parking brake rod latch and is secured with a bow tie clip.

  • Page 47: Gear Selector

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Auto-Drive CVT Drive System Gear selector Shift lever • The forward-neutral-reverse gear selector is on the left rear fender of the tractor. See Figure 5.12. Shift adjustment bracket Shift rod Figure 5.12 • A spring under the fender attached between the Extension spring seat frame bracket and the shift lever keeps inward pressure on the selector to give it positive feel.

  • Page 48: Adjusting Gearshift Lever

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Adjusting Gearshift Lever If the gearshift lever does not line up with the neutral position on the fender or the operator has trouble putting the tractor in one of the gear positions because the lever hits the fender, the position of the gear shift lever can be adjusted.

  • Page 49: Adjusting The Variable Speed Pulley Control Rod

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Auto-Drive CVT Drive System Adjusting the variable speed pulley control rod An adjustable rod connects the foot pedal assembly to the variable speed pulley assembly. This adjustment sets the neutral position of the idler pulley and the top speed of the tractor. Pressing on the drive pedal tensions the belt between the engine pulley and the variable speed pulley and changes the ground speed of the tractor.
  • Page 50 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Measure the length of the adjustment link to see if it is at the factory specification, 7-1/2”. See Figure 5.18. NOTE: Lengthening the adjustable rod to factory specifications (or longer) should eliminate the creep.

  • Page 51: Linkage: Pedal Shaft

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Auto-Drive CVT Drive System Linkage: pedal shaft Drive pedal shaft Description: The clutch/brake pedal and the drive control pedal operate on two concentric shafts. See Figure 5.19. • The clutch/brake shaft runs the full width of the tractor.

  • Page 52: Drive Pedal And Brake Pedal Shaft Assembly Removal

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Drive pedal and brake pedal shaft assembly removal Remove hair pin clip and rod from bracket NOTE: The entire pedal rod assembly can be removed, or just the side being worked on.
  • Page 53 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Auto-Drive CVT Drive System Hex screws securing left pedal shaft Using a half inch socket, remove the two hex screws securing the left pedal shaft bracket to the frame. See Figure 5.25. Figure 5.25 Hex screws securing right pedal bracket Remove the two hex screws securing the right pedal shaft support bracket to the frame using a half inch...
  • Page 54 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Re-enforcement bracket Cobra head arm Examine the re-enforcement bracket between the cobra arm and pedal shaft for damage and replace if necessary. See Figure 5.28. Disconnect the cobra-head rod from the pedal shaft tie plate.

  • Page 55: Linkage: Cobra Head To Control Rod Tie Plate And Hex Bushing

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Auto-Drive CVT Drive System Linkage: Cobra head to control rod tie plate and hex bushing NOTE: If there is reason to replace the tie plate and hex bushing, it can be replaced without disassembly of the pedal shafts.

  • Page 56: Belt Control: Upper Drive Belt Idler Arm

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Belt control: Upper drive belt idler arm The battery will be removed in this Upper drive belt pulley ! CAUTION ! CAUTION procedure. Review the Operator’s Manual and Chapter 7: Electrical Systems for important safety information about han- dling batteries before proceeding.

  • Page 57: Belt Control: Servicing The Variable Speed Pulley

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Auto-Drive CVT Drive System Belt control: Servicing the variable speed pulley NOTE: While it may be possible to remove the variable Slide pulley assembly from transmission speed pulley from the tractor without removing the transmission from the rider, we do not advise it.
  • Page 58 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor • The variable speed pulley should spin true in the bearings. Variable speed pulley • The center partition of the variable speed pulley should slide up-and-down smoothly. See Figure 5.37.

  • Page 59: Belt Control: Double Idler Tensioner Pulleys

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Auto-Drive CVT Drive System Belt control: Double idler tensioner pulleys The double idler tension pulleys act as a clutch to engage and disengage the drive belt based on the position of the drive control foot pedal. In addition, when the brake pedal is depressed a bypass rod disengages the idler pulleys as it engages the brake.
  • Page 60 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Idler adjustment rod Remove the cotter pin securing the idler adjustment Cobra head rod Cotter pin rod to the cobra head rod on the drive pedal bracket assembly. See Figure 5.40.
  • Page 61 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Auto-Drive CVT Drive System Using a 9/16” wrench on the bottom and a 9/16th socket on the top, remove the nut and bolt securing the double idler bracket to the frame. See Figure 5.43. NOTE: Support the idler bracket during this procedure.
  • Page 62 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Proper belt routing Attach idler adjustment rod to cobra head bracket with new cotter pin. See Figure 5.46. Attach transmission bypass rod to brake assembly bracket and secure with the hairpin clip removed earlier/ Route the drive belt through the idler pulleys.

  • Page 63: Drive Belt Replacement

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Auto-Drive CVT Drive System Drive belt replacement The battery will be removed in this procedure. Review the Operator’s Manual and Chapter 7: ! CAUTION ! CAUTION Electrical Systems for important safety information about handling batteries before proceed- ing.
  • Page 64 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Walk belt up and over variable speed pulley The slack created will allow the upper belt to slip easily out of the top sheave of the variable speed pulley and off of the transmission input pulley.
  • Page 65 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Auto-Drive CVT Drive System Belt guides 5d. Lower the pulley and drive belt enough to clear the belt guards stamped into the frame. See Stamped belt guards Figure 5.52. 5e. Remove the pulley from the crankshaft and set it aside.

  • Page 66: Transaxle Removal And Replacement

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Transaxle removal and replacement The battery will be removed in this procedure. Review the Operator’s Manual and the Electri- ! CAUTION ! CAUTION cal chapter of this manual for important safety information about handling batteries before proceeding.
  • Page 67 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Auto-Drive CVT Drive System Brake actuator spring NOTE: At this point, the brake actuator spring is still Disconnect here during removal attached to the brake rod from the pedal shaft, and the brake arm on the transaxle. See Figure 5.57. 10.

  • Page 68: Transaxle Repair - Bench Work

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Transaxle Repair - Bench Work General Information If the tractor is still under warranty, a damaged transaxle would be replaced and not repaired. That being said, dealers are encouraged to check warranted transaxles for a cause of failure. It only take a few minutes to open a transaxle for inspection.
  • Page 69 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Auto-Drive CVT Drive System Use a magnet, or turn the transaxle upside-down to remove the detent ball and spring. See Figure 5.60. Detent ball Detent screw hole Detent spring Detent screw Figure 5.60 Disassemble the brake: 6a.
  • Page 70 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Slip the brake rotor off of the brake shaft (splined end of bevel gear shaft). See Figure 5.63. Inspect the brake shaft and inner brake pad. Brake shaft NOTE: The inner pad is epoxied in-place, but may be pried-out for replacement.
  • Page 71 12e. If this is a warranty-related autopsy, identify the root cause of the problem. If it is not something that was done wrong at the factory, the problem is not warrantable. NOTE: MTD does not have a part number for water, and it is not installed at the factory. www.mymowerparts.com...
  • Page 72 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Forward bevel gear Reverse bevel gear Lift the bevel gears out of the transaxle for disas- sembly and (mostly) visual inspection. Engagement teeth See Figure 5.68. 13a. Note the placement of the shims on the bevel gear shaft.
  • Page 73 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Auto-Drive CVT Drive System 14e. If the transaxle is repaired, the damage is iso- lated, and the grease is not contaminated with anything, it is acceptable to re-use the grease. See Figure 5.70. Figure 5.70 Feeler gauges Inspect the pinion gear and input shaft assembly.
  • Page 74 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Input shaft 16b. Use a screwdriver to pry-off the E-ring. See Figure 5.73. E-ring Figure 5.73 Shims set end-play 16c. Remove the shim washers. See Figure 5.74. Figure 5.74 16d.
  • Page 75 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Auto-Drive CVT Drive System Pinion gear Thrust washer 16e. Inspect the shaft and bearings. See Figure 5.76. 17. Final evaluation: It may not be necessary to fully disassemble the tran- saxle to identify the damage or find the root cause of a warrantable failure.
  • Page 76 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Reduction-gear Shims side bearing (long) 19c. Re-install the shims in their original locations on the bevel gear shaft. Shims 19d. Smear some Durina grease on the surfaces of the shaft that will ride in the flange bearings.
  • Page 77 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Auto-Drive CVT Drive System 20f. Carefully place the assembly into the housing for a dry fit. See Figure 5.80. 21. Press the differential and the reverse gears as close together as they will go while remaining properly seated in the housing.
  • Page 78 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Carefully install the top of the housing, and install the 13 perimeter screws, leaving 2 empty screw holes; 1 on each side of the brake spline. NOTE: No sealant is necessary.
  • Page 79 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Auto-Drive CVT Drive System 35f. Set the clearance between the pads and rotor to 0.010-0.015” (0.25-38mm) using the adjust- ing nut on the brake yoke. See Figure 5.84. 35g. Re-hook the brake spring to the brake arm 36.
  • Page 80 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Specifications Specification U.S. Metric Pinion end play 0.010”-0.015” 0.25-0.38mm Pinion run-out 0.002”-0.010” 0.05-0.25mm Pinion back-lash 0.006”-0.014” 0.15-0.36mm Differential rivet.-to-gear clearance 0.030” minimum 0.762mm Axle end-play 0.010”-.08” 0.25-2.0 Amount of Durina grease, 10 oz. tube 20 fl.oz...

  • Page 81: Chapter 6: Hydrostatic Transaxle

    If a warrantable problem occurs in the first two years of service, the transaxle will be replaced as a unit by an authorized White dealer, returning the transaxle to MTD for vendor recovery. It may also be repaired by a Hydro-Gear authorized MTD dealer under the Hydro-Gear warranty.

  • Page 82: Purging The System

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor NOTE: Customers and unfamiliar technicians may attempt to add or check the fluid level at the vent cap on the plastic over-flow reservoir. See Figure 6.3. Expansion tank Vent cap Check/fill plug Figure 6.3...

  • Page 83: Brakes

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Hydrostatic Transaxles Brakes Brake rod Return spring Extension spring The brake rod pulls on a spring that is hooked to the cam-arm on the brake caliper. The cam-arm forces two pins inward against a backing plate and brake pad. The pad forces the floating rotor against a second pad located behind the rotor.

  • Page 84: Transaxle Control Linkage

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Transaxle control linkage Bell crank Cross shaft The lever that controls the ground speed and direction Adjustable rod of travel is located on the right rear fender. The lever rotates a cross-shaft and bell crank. An adjustable rod connects the bell crank to the input arm on the left side of the transaxle.

  • Page 85: Cross-Shaft And Control Lever

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Hydrostatic Transaxles Cross-shaft and control lever Remove the handle from the lever using a blow-gun. See Figure 6.11. Lift and safely support the back of the tractor. Remove the rear wheels using a 1/2” wrench. Disconnect the rod from the bell crank to the input arm.
  • Page 86 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Rotate the lever to relieve tension from the torsion spring, and align the coined “ears” on the lever with the slots that they pass through in the cross shaft assembly.

  • Page 87: Drive Belt

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Hydrostatic Transaxles Drive Belt To remove the transaxle drive belt, begin by removing the cutting deck and the front deck stabilizer link. The procedure in the operator’s manual or the procedure described in the “DECK REMOVAL” section of this Belt keeper manual will provide some guidance, if necessary.
  • Page 88 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Disconnect the battery, and remove it from the trac- Screws holding fan tor. to pulley Remove the tray that supports the battery. This will reveal the cooling fan and pulley on top of the hydrostatic transaxle.

  • Page 89: Clutch/Brake Linkage

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Hydrostatic Transaxles Clutch/Brake linkage Tensioner de-clutches belt Application of the clutch / brake pulls on the rod that actuates the cam arm on the brake caliper, and pivots the tension pulley bracket away from the belt, creating slack. See Figure 6.20.
  • Page 90 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Spring Pivot the spring that connects the brake rod to the (connecting brake rod caliper up and outward to unhook it. to cam arm on caliper) See Figure 6.23.

  • Page 91: Brake Pedal Assembly

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Hydrostatic Transaxles Brake pedal assembly Remove the cutting deck to gain access to the link- age. See Figure 6.24. Mark or make note of the linkage connections and orientations relative to the brake pedal assembly. Disconnect the extension spring that reaches forward from the brake pedal assembly Remove and discard the cotter pins that secure the...

  • Page 92: Parking Brake

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Parking brake to ON The parking brake is operated by small lever on the left side of the dash panel. The label describes one end of the lever’s travel as “ON”, and the other end as “RUN”.

  • Page 93: Parking Brake Adjustment

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Hydrostatic Transaxles Parking brake adjustment To adjust the parking brake rod: NOTE: The parking brake rod is properly adjusted when the tab on the latch just bottoms-out in the notch Notch on the brake pedal assembly when the pedal is depressed and the park brake is moved to “ON”.
  • Page 94 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor www.mymowerparts.com...

  • Page 95: Chapter 7: Electrical System

    Components Since the early 80’s all MTD tractors have been equipped with safety switches to prevent the tractor from mowing in reverse. This was done in response to children being run over by lawn mowers. In 2005 the American National Standards Institute (ANSI) issued a standard preventing all lawn tractors from mowing in reverse, however it did allow for an operator controlled over-ride system.

  • Page 96: Ocr Module

    Series 700 Lawn Tractor OCR Module The Operator-Controlled Reverse System (OCR) used by MTD consists of a module. It take two functions or steps to arm the OCR, per ANSI. These steps are: Turn the key switch to the OCR position.

  • Page 97: Key Switch

    Figure 7.2 The Key Switch is similar to those used in a variety of OCR Module MTD applications since 1999. The difference, in this case, Front is that it is incorporated in the same housing as the OCR module; the two items are not available separately.
  • Page 98 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Series 700 Lawn Tractor NOTE: On all 700 series tractors: • The M terminal is connected to the magneto by a yellow wire. • The G is connected to ground by a green wire •...
  • Page 99 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Electrical Symptom: Crank, but no spark: This is a highly unlikely scenario. If it occurs after a key switch has been changed independently of the OCR module, this would arouse suspicion that the wrong key switch was installed.

  • Page 100: Ocr Module

    It is designed to work as follows: See Figure 7.6. When the OCR module is disarmed, the mower will operate as MTD mowers have historically operated: LED Indicator • If reverse is engaged when the PTO is ON, the engine will turn off.

  • Page 101: Identifying A Faulty Ocr Module

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Electrical • To arm the OCR module: The operator must turn the key switch to the REVERSE CAUTION MODE (yel- low zone), while the parking brake is off. • To turn the OCR module ON: The module must first be armed, then the orange triangular button is depressed, illuminating the red LED indicator to indicate that it is ON.
  • Page 102 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Series 700 Lawn Tractor Disconnect the molded 8-pin plug from the OCR module. Jumper harness Test here NOTE: The 7-pin module had a jumper harness that is between the module and the main har- ness.
  • Page 103 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Electrical Yellow/white wire • Behavior: When the female pin terminal leading into the main harness is probed (yellow wire), there should be continuity to ground only when the parking brake is on. • Circuitry: The yellow wire with white trace leads to the parking brake switch, where it finds a path to ground when the parking brake is on.

  • Page 104: Pto Switch

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Series 700 Lawn Tractor PTO switch • The manual PTO switch is mounted seat box on the right hand side. See Figure 7.9. • The PTO switch plunger is depressed when the PTO lever is moved to the “off” position. •...

  • Page 105: Park Brake Switch

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Electrical Park Brake Switch • The Park Brake Switch is riveted inside the left front edge of the dash panel. See Figure 7.11. Park brake • The switch contains two sets of contacts, one set switch normally open (NO), and one set normally closed (NC).

  • Page 106: Reverse Safety Switch

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Series 700 Lawn Tractor Reverse Safety Switch The Reverse Safety Switch is a simple metal contact tang switch. CVT transmissions Reverse Safety Tractors that have the CVT transmissions have the Switch reverse switch mounted on the left side of the frame, by the rear wheel.

  • Page 107: Seat Safety Switch

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Electrical Seat Safety Switch The Seat Safety Switch consists of a pair of simple metal contact tangs attached to the seat mounting bracket. See Figure 7.14. • The yellow wire with black trace is connected to Yellow wire white Seat safety switch trace...

  • Page 108: Starter Solenoid

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Series 700 Lawn Tractor Starter solenoid Ground wire Starter solenoid The starter solenoid is mounted at the left rear corner (to mounting bolt) of the frame. The mounting bracket is visible beneath the left fender, and the solenoid itself is accessibly by remov- ing the battery.

  • Page 109: Lighting Circuit

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Electrical Lighting circuit The headlights on a 700 series tractor are always on if the key switch is in any of the run positions. No OCR System • Battery power leaves the key switch from the L ter- minal and goes to the headlights through a blue wire.

  • Page 110: Start Circuit

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Series 700 Lawn Tractor Start Circuit NOTE: The start circuit is the same for all three electrical systems. Turning the key to the START position: • Spins the starter motor • Enables the ignition •...
  • Page 111 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Electrical When the following conditions are met: • Key to START • Brake is on • PTO off The starter solenoid trigger terminal will receive power (orange wire). When the starter solenoid is triggered, it internally connects the heavy red cable from the battery with the heavy red cable that leads to the starter motor.

  • Page 112: Run Circuit

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Series 700 Lawn Tractor Run Circuit No OCR System With the key switch in the RUN position, the L terminal sends power to: • The afterfire solenoid • The headlights See Figure 7.21. This is identical to what happens with the key in the START position, except that the circuit that actually spins the starter motor is not energized.
  • Page 113 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Electrical 8-pin OCR System With the key switch in the RUN position, the A1 terminal sends power to: • The afterfire solenoid • The OCR module “a1 pwr” terminal • The headlights This is similar to the 7-pin OCR system except the headlights are powered by the A1 terminal of the key switch and the alternator bypasses the key switch to charge the battery.

  • Page 114: Run Circuit / Reverse Caution Mode

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Series 700 Lawn Tractor Run Circuit / Reverse Caution mode NOTE: The 7-pin and the 8-pin OCR systems have basically the same circuit, the only difference is that the 8- pin system has a second ground for the OCR module. With the key in Reverse Caution mode, A1 gets power from the B terminal, just like the normal run position.

  • Page 115: Safety Circuits

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Electrical Safety circuits Since the early 80’s, MTD has had safety circuits on their lawn tractors that will turn off the tractor if an unsafe condition exists. These safety circuits will have yellow wires. Brake and seat safety circuit...
  • Page 116 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Series 700 Lawn Tractor Reverse safety circuit The reverse circuit functions the same for all of the electrical systems used on the 700 series tractors. See Figure 7.26. No OCR • When the transmission put into reverse, the shift linkage will contact the reverse switch, applying a ground to it.

  • Page 117: Charging Circuit

    Electrical Charging circuit All MTD tractors have a charging circuit, however the charging circuit will very from engine to engine. This sec- tion will cover some of the basic theory and troubleshoot procedures for charging circuits. IMPORTANT: Refer to the engine manufacturer for specific values and testing procedures.
  • Page 118 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Series 700 Lawn Tractor Half wave rectifiers A half wave rectifier is a devise that blocks the bottom or negative half of the AC signal. These rectifies send a pulsed voltage signal to the system. See Figure 7.29. Most half wave rectifiers are simply a diode placed on the stator output.
  • Page 119 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Electrical Regulators A voltage regulator is a devise that voltage output to a specified value or range of values. Voltage regulators are commonly built into the rectifiers. A rectifier uses a special kind of diode, called a zener diode.

  • Page 120: Testing The Charging System

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Series 700 Lawn Tractor Testing the charging system Charge and check the battery or confirm that the battery full charged and not the source of the problem. Make a visual inspection of the tractor. Look for: •...
  • Page 121 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Electrical Stator check (full wave rectifiers): See Figure 7.34. 5a. Key OFF, unplug the stator from the regulator/ rectifier. 5b. Check resistance through the stator using a dig- ital multimeter set to read Ohms. NOTE: Refer to the engine manufacture for the specified readings.
  • Page 122 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Series 700 Lawn Tractor Regulator/rectifier check: See Figure 7.36. Check the ground. • With the engine running and the stator leads re- connected to the regulator/rectifier, perform a ground-side voltage-drop test from the regula- tor/rectifier to the engine block.
  • Page 123 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Electrical 7b. Bench Test: See Figure 7.37. • Set a digital multi-meter to read on the X100Ω scale. • With the key OFF and the fuse removed, unplug all the wires from the regulator/rectifier. •...
  • Page 124 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Series 700 Lawn Tractor Check the D.C. amperage output of the regulator/rec- tifier using a an Ammeter of sufficient capacity or a D.C. Shunt tool and a volt meter set to read on the millivolt scale, as described in the TOOLS section of this chapter.

  • Page 125: Electrical Diagnosis

    Electrical Electrical diagnosis NOTE: Electrical diagnostic procedures and tools are the same for all Cub Cadet and MTD mowers. This sec- tion is written in a way to provide basic trouble shooting skills that can be used on any mower.

  • Page 126: Electrical Environment: Ac Vs. Dc

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Series 700 Lawn Tractor • Low Voltage: Many electronic devices simply stop working if system voltage falls below a given threshold. If a 12 volt system is run at 11 volts with a failing alternator, electronic controls may stop working. •...

  • Page 127: Ohm's Law

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Electrical Ohm’s Law Ohm’s Law relates voltage, amperage, and resistance. It states that voltage is the product of resistance times current. • It is written as V = I x R. • In simplest terms, it goes like this: It takes 1 volt to push 1 amp through a resis- tance of 1 ohm (1 = 1 x 1).

  • Page 128: Kirchhoff's Voltage Law

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Series 700 Lawn Tractor Kirchhoff’s voltage law Kirchhoff’s voltage law deals with voltage drops. A voltage drop is the amount of voltage used up or “dropped” by resistance in a circuit. Ohm’s law states that V = I x R, every component in a circuit has resistance, even the wires. To push current through resistance, it takes voltage.

  • Page 129: Types Of Circuits

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Electrical Types of circuits There are three ways a circuit can be wired: • Series • Parallel • Series/parallel Series Series circuits are wired so that the current has only one path to follow. If one component in the system fails, the circuit will be broken and whole system will not work.

  • Page 130: Series/Parallel

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Series 700 Lawn Tractor Series/parallel Series/parallel circuits have some sections wired in series and some in parallel. See Figure 7.44. Lamp Battery Lamp Lamp Lamp Switch Figure 7.44 What can go wrong? There are three types of failures that can occur in an electrical circuit: Shorts Opens Increased resistance...

  • Page 131: The Tools

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Electrical The Tools Equipment needed to diagnose an electrical system: • DMM (Digital Multi-Meter) • Wiring schematic or diagram Equipment that may be useful: • Fused jumper wires. • Test light • Self-powered continuity light •...

  • Page 132: Digital Multi-Meter

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Series 700 Lawn Tractor Digital Multi-meter A DMM is the most useful tool to troubleshoot any electrical system. There is an amazing variety of DMMs on the market. Some are very basic, others are tailored to specific industries, and some high-end graphing meters function like oscilloscopes.

  • Page 133: Wiring Diagram Or Schematic

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Electrical Wiring diagram or schematic A wiring or a schematic diagram, and the ability to read it are very important in troubleshooting a circuit. The dia- gram shows how the circuit was designed and what paths the electricity is suppose to flow. Fused jumper wires Fused jumper wires are handy to help find bad grounds or to jump across switches for testing purposes.

  • Page 134: Ammeters And Specialized Charging System Testers

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Series 700 Lawn Tractor Ammeters and specialized charging system testers Inductive ammeters are available in many forms. DMM with inductive Some are as simple as a gauge to be held against the cir- ammeter feature cuit in question when it is energized.

  • Page 135: Batteries

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Electrical Batteries Batteries produce flammable and explosive gases, particularly during charging. ! CAUTION ! CAUTION • Do not smoke or allow an open flame or heat source near the battery. • Charge batteries in an open area •...

  • Page 136: Checking Battery Condition

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Series 700 Lawn Tractor Checking battery condition There are three things to do when testing a battery: • Visual inspection • Electrolyte test • Operational test Visual inspection • Inspect the battery and battery connections for corrosion. Clean if necessary. Neutralize acid with baking soda, and protect the terminals once they are cleaned.

  • Page 137: Battery Testers

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Electrical Battery Testers There are four major ways to check a battery: • Electrolyte test using a specific gravity tester (hydrometer) to compare the density of the electrolyte in a fully charged battery to the density of water (water = 1.0 s.g.). •...

  • Page 138: Fixed Load Testers

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Series 700 Lawn Tractor Fixed load testers Fixed load testers (sometimes called toasters) are inexpensive load testers found at any auto parts store. See Figure 7.50. NOTE: Because they have a fixed load value, they do not give most batteries a reliable and safe load test.

  • Page 139: Battery Discharge Test

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Electrical Battery discharge test Occasionally a battery will discharge while sitting unused. To test for a battery that is “leaking” voltage: Confirm that operator technique is not creating a situ- ation that cases a draw. As an example, if a home- owner habitually turns their equipment off using a safety switch (perhaps vacating the seat with the key switch still ON), that may leave a relay or fuel shut-off...

  • Page 140: Electrical Troubleshooting

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Series 700 Lawn Tractor Electrical Troubleshooting The first step in troubleshooting is to always verify the complaint. Defining and verifying the problem reduces the possibility of misunderstanding and helps clarify the diagnostic approach. The next step is to check the simple stuff first: •...
  • Page 141 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Electrical Starting with a fully charged battery and battery cable connections that are clean and tight, measure the battery voltage. See Figure 7.53. With the circuit energized, start at either end of the circuit and check for voltage.

  • Page 142: Voltage Drop Test

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Series 700 Lawn Tractor Voltage Drop Test To review: • Ohm’s law states that it takes voltage to push current through a resistance. • Kirchhoff’s voltage law states that the sum of all the voltage drops equals the source voltage.
  • Page 143 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Electrical A similar ground-side test on a mower with a slow- cranking starter motor can be conducted between the engine block and the negative battery post. See Figure 7.56. With the starter engaged, this machine exhibited a voltage-drop reading of 0.312 volts, indicating a poor ground connection.
  • Page 144 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Series 700 Lawn Tractor Voltage drop on a good circuit should be less than 0.1 volts. A voltage drop reading on the meter of greater than 0.2 volts indicates a fairly substantial problem that demands attention. •...

  • Page 145: Testing Switches

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Electrical Testing switches • Refer to the “COMPONENTS” section of this chapter that describes the function of the individual switches to be tested. • Switches can be tested “hot” by looking for voltage at the appropriate posts. This is not definitive, since the source of the voltage is not always confirmed.

  • Page 146: Diodes

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Series 700 Lawn Tractor Diodes What is a diode? A diode acts like a one way valve, Silver band allowing current to flow in only one direction. See Figure 7.60. • Which way does this electrical check-valve work? There will be a band on one end of the diode.
  • Page 147 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Electrical No continuity Switch the leads and repeat the test. The meter should indicate no continuity. Silver band See Figure 7.63. If the results do not match the above, replace the diode. Figure 7.63 www.mymowerparts.com...

  • Page 148: Schematic

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Series 700 Lawn Tractor Schematic www.mymowerparts.com...
  • Page 149 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Electrical www.mymowerparts.com...
  • Page 150 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Series 700 Lawn Tractor www.mymowerparts.com...
  • Page 151 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Electrical www.mymowerparts.com...
  • Page 152 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Series 700 Lawn Tractor www.mymowerparts.com...
  • Page 153 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Electrical www.mymowerparts.com...
  • Page 154 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Series 700 Lawn Tractor www.mymowerparts.com...

  • Page 155: Chapter 8: Cutting Decks

    The 700 series riders comes with a variety of deck options. The eighth digit of the model number will identify which deck is on the tractor. The most common decks used on the 700 series are the F, G and T decks.

  • Page 156: Deck Removal

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Deck removal Place the tractor on firm level ground and set the parking brake. Lower the deck to the lowest cutting height. Remove the PTO belt from the engine pulley: Make sure the PTO lever is in the disengaged position.
  • Page 157 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Cutting Decks Pull back on the deck engagement cable. Lift it up and out of the slot in the cable bracket. See Figure 8.5. Deck engagement cable Figure 8.5 Unhook the spring end of the PTO cable from the Spring connected to idler pivot bracket idler pivot bracket.

  • Page 158: Cleaning The Deck

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Remove the bow tie clip that secures the front lift rod to the deck and slide the rod out of the deck. See Figure 8.8. NOTE: The 38” deck has a slot for the front hanger rod.

  • Page 159: Blade Removal

    The cutting deck on the 700 series tractor is mounted with a slight rake, meaning that the front of the deck is a 1/ 4” - 3/8” lower than the rear of the deck. This is very important to get the proper air flow in the deck so that the blades can make the grass blades stand up to get cut.

  • Page 160: Pto Belt

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor PTO Belt The function of the PTO belt is to transfer the mechanical force from the engine to the deck. The belt faces many different forces. • The friction of the belt grabbing the different pulleys creates heat. This heat softens the belt weakening it.

  • Page 161: To Replace The Pto Belt

    To replace the PTO belt NOTE: This service manual cannot begin to cover all the belt and deck configurations on the 700 series trac- tor. We will cover some common examples and procedures. Refer to the Illustrated Parts List for a complete diagram and list of parts for the rider.
  • Page 162 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor NOTE: When reassembling the pulleys and belt guards, note that the guard may have a coined protrusion that fits into a hole on the idler bracket. This properly aligns the belt guide.
  • Page 163 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Cutting Decks Timing belt PTO belt • For a 42” timed “R” deck, See Figure 8.16. Figure 8.16 Reinstall and/or tighten all belt guards and keepers that were loosened to get the PTO belt off. Install the deck in reverse order of removal.

  • Page 164: Deck With A Timing Belt

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Deck with a Timing Belt Timing belt: NOTE: When servicing a rider with a timed cutting deck, it is important to check the timing of the belt any time repairs or periodic mainte- nance are performed to the mower.
  • Page 165 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Cutting Decks PTO idler pulley Work the belt off of the pulleys. NOTE: The PTO idler pulley and the timing belt idler pulley can be moved apart, making clearance to remove the timing belt. See Figure 8.20. Timing belt idler pulley Figure 8.20 To install the timing belt turn the blades 90...

  • Page 166: Pulleys And Spindles

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Pulleys and Spindles To replace a pulley: Remove the deck as described at the beginning of this chapter. Remove the belt cover if there is one on the pulley you are replacing.
  • Page 167 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Cutting Decks Replacing a spindle Spindle bolts Remove the deck as described at the beginning of this chapter. Remove the spindle cover on the spindle you a replacing. Slip the PTO belt off of the spindle pulley that is to be serviced.

  • Page 168: Blade Brake System

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Blade Brake System The blade brake is a safety system designed to stop the blades quickly when the PTO is disengaged. An exten- sion spring attached to the idler pivot bracket forces the brake pucks to engage the pulley sheaves to stop the pulleys from turning.
  • Page 169 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Cutting Decks NOTE: Make sure the rod belt keeper is properly aligned over the belt and the belt is not rubbing on the keeper during reassembly. See Figure 8.28. Proper alignment of belt keeper Figure 8.28 Replacing the left brake assembly Remove the cutting deck from the rider as described...

  • Page 170: Leveling The Deck

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Leveling the deck For the best quality cut, the deck must be level side to side and the front of the deck should be 1/4” - 3/8” lower than the rear of the deck.

  • Page 171: Front To Rear Leveling

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Cutting Decks Front To Rear Leveling The front of the cutting deck is supported by an adjustable front deck hanger rod. This rod can be adjusted to set the front to rear pitch of the deck. The front of the deck should be between 1/4-inch and 3/8-inch lower than the rear of the deck.

  • Page 172: Deck Wheel Adjustment

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Deck Wheel Adjustment The cutting decks are of a “floating” design. This means that they are suspended above the ground. The gauge wheels occasionally touch the ground. They are designed to bump the deck up and over irregularities. This helps prevents scalping damage to the turf and damage to the deck.

  • Page 173: Deck Lift Shaft Assembly Bushings

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Cutting Decks Deck lift shaft assembly bushings The deck lift shaft bushings may need replacement at some point during the life of the mower. These bushings can be replaced without removing the deck lift shaft assembly. To replace the bushings: Remove the Remove the deck following the steps described at the E-ring...
  • Page 174 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Remove the E-clip Remove the E-clips that retain the lift shaft bush- ings. (Both sides of frame.) See Figure 8.36. Figure 8.36 Slide the deck lift shaft to the right with enough force to pop out the right side bushing.

  • Page 175: Deck Lift Links

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Cutting Decks Deck lift links The deck lift links have two functions. The first function is to support the rear of the deck. The second function is to raise or lower the deck in response to movement of the deck lift lever. To accomplish the second function, the deck lift rods connect from the deck lift shaft assembly to the deck lift links.

  • Page 176: Cutting Deck Engagement Lever Replacement

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor A worn plastic bearing can be replaced without disas- sembling the engagement lever. Remove the two 1/4-20 screws that secure the two plastic bearing halves to the right side of the seat frame below the right fender.

  • Page 177: Replacing The Cutting Deck Engagement Cable

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Cutting Decks Replacing the cutting deck engagement cable NOTE: Replacing a broken cutting deck engagement cable can be replaced without removing the cutting deck or the fenders. Place the rider on a level surface and secure the parking brake.
  • Page 178 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Unhook the spring end of the PTO cable from the idler pivot bracket. See Figure 8.47. PTO cable spring Figure 8.47 “Z” fitting Reach through the opening in the fender assembly where the battery was located and remove the “Z”...

  • Page 179: Chapter 9: Maintenance Intervals

    CHAPTER 9: MAINTENANCE INTERVALS Lubrication To help keep the 700 series in proper running order it is recommended the following lubrication intervals be used (adjustable to local conditions). Use a high quality petroleum grease to lubricate the tractor. Lubrication Chart...

  • Page 180: General Maintenance Tips

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor General maintenance tips BEFORE EACH USE • Check engine oil level • Check air filter and pre cleaner • Inspect for build up of debris around engine cooling fins and air cowlings •...

  • Page 181: Air Filter And Foam Pre Cleaner

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Maintenance Intervals Air filter and foam pre cleaner A dirty air filter and/or foam pre cleaner can reduce engine power, increase fuel consumption and make starting more difficult. See Figure 9.3. The foam pre cleaner should be checked before each use and cleaned every 25 hours. The air filter should be replaced per engine manufacturers requirements.

  • Page 182: Oil Change

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor Oil change The oil change interval is every 100 hrs or yearly before storage. NOTE: The first oil change on a new engine should be preformed at 8 hours.

  • Page 183: Oil Filter

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Maintenance Intervals Oil filter To replace the oil filter: Drain the oil by following the previously described Oil Filter steps. Remove the oil filter using an oil filter wrench. See Figure 9.6. Place a light coating of oil on the O-ring of the new fil- ter.

  • Page 184: Fuel System

    IMPORTANT: The 700 series tractor uses low permeation fuel line to meet EPA guidelines. When replacing the fuel lines, they must be replaced with the same type of low permeation fuel line.

  • Page 185: Clean The Engine

    FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 Maintenance Intervals Clean the engine Air cooled engines cool better if they are clean. Check for nesting or signs of nesting especially after dormant season storage. Lubricate the pedal shaft NOTE: The deck does not need to be removed to perform this procedure.
  • Page 186 FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983 700 Series Lawn Tractor www.mymowerparts.com...

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