Troy-Bilt AutoDrive 604 Operator's Manual
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Troy-Bilt AutoDrive 604 Operator's Manual

Troy-Bilt AutoDrive 604 Operator's Manual

Troy-bilt lawn tractor operator's manual
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O
M
PERATOR'S
ANUAL
AutoDrive
Lawn Tractor
™
Model 604
IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY
Warning:
This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest-
covered, brush-covered or grass-covered land unless the engine's exhaust system is equipped with a spark arrester meeting
applicable local or state laws (if any). If a spark arrester is used, it should be maintained in effective working order by the operator.
In the State of California the above is required by law (Section 4442 of the California Public Resources Code). Other states may have
similar laws. Federal laws apply on federal lands. A spark arrester for the muffler is available through your nearest engine authorized
service dealer or contact the service department, P.O. Box 368022 Cleveland, Ohio 44136-9722.
MTD PRODUCTS INC. P.O. BOX 368022 CLEVELAND, OHIO 44136-9722
PRINTED IN U.S.A.
FORM NO. 770-10187
(12/98)

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  • Page 1 PERATOR’S ANUAL AutoDrive Lawn Tractor ™ Model 604 IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY Warning: This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest- covered, brush-covered or grass-covered land unless the engine’s exhaust system is equipped with a spark arrester meeting applicable local or state laws (if any).

  • Page 2: Table Of Contents

    SECTION 1: TABLE OF CONTENTS FINDING YOUR MODEL NUMBER ............2 CALLING CUSTOMER SUPPORT.

  • Page 3: Important Safe Operation Practices

    SECTION 4: IMPORTANT SAFE OPERATION PRACTICES WARNING: THIS SYMBOL POINTS OUT IMPORTANT SAFETY INSTRUCTIONS WHICH, IF NOT FOLLOWED, COULD ENDANGER THE PERSONAL SAFETY AND/OR PROPERTY OF YOURSELF AND OTHERS. READ AND FOLLOW ALL INSTRUCTIONS IN THIS MANUAL BEFORE ATTEMPTING TO OPERATE YOUR LAWN MOWER. FAILURE TO COMPLY WITH THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
  • Page 4 • Disengage all attachment clutches, thoroughly depress the brake pedal, and shift into neutral before attempting to start engine. • Your mower is designed to cut normal residential grass of a height no more than 10". Do not attempt to mow through unusually tall, dry grass (e.g., pasture) or piles of dry leaves.

  • Page 5: Safety Lables Found On Your Unit

    • Keep all nuts, bolts and screws tight to be sure the equipment is in safe working condition. • Never tamper with safety devices. Check their proper operation regularly. Use all guards as instructed in this manual. • After striking a foreign object, stop the engine, remove the wire from the spark plug and thoroughly inspect the mower for any damage.

  • Page 6: Slope Gauge

    USE THIS PAGE AS A GUIDE TO DETERMINE SLOPES WHERE YOU MAY NOT OPERATE SAFELY. SIGHT AND HOLD THIS LEVEL WITH A VERTICAL TREE A POWER POLE A CORNER OF A BUILDING OR A FENCE POST 15 ° WARNING Do not mow on inclines with a slope in excess of 15 degrees (a rise of approximately 2-1/2 feet every 10 feet). A riding mower could overturn and cause serious injury.

  • Page 7: Attachments & Accessories

    SECTION 5: ATTACHMENTS & ACCESSORIES MODEL NUMBER OEM-190-601 FastAttach OEM-190-602 FastAttach OEM-190-112 Mulch Kit (For 42-inch Decks Only) OEM-190-118 Mulch Kit (For 46-inch Decks Only, includes a set of blades) OEM-190-603 FastAttach OEM-190-604 TracPac Storage Container (mounts on rear of tractor) ™...

  • Page 8: Controls

    SECTION 7: CONTROLS Ignition Switch Throttle Control Lever Choke Control (if so equipped) Indicator Monitor/Hour Meter Lift Lever PTO (Power Take-Off) Lever AutoDrive Pedal ™ NOTE: Any reference in this manual to the RIGHT or LEFT side of the tractor is observed from operator’s position. NOTE: Steering Wheel not shown for clarity.

  • Page 9: Ignition Switch

    IGNITION SWITCH To start the engine, insert key into the ignition switch and turn clockwise to the START position. Release key to the ON position once engine has fired. See Figure 4. Refer to STARTING THE ENGINE in the OPERATION section of this manual for detailed starting instructions.

  • Page 10: Lift Lever

    LIFT LEVER The lift lever is used to change the operating position (height) of the cutting deck. To operate, move the lever to the left, then place in the notch best suited for your application. PTO (POWER TAKE-OFF) LEVER The PTO lever is located on the left side of the dashboard next to the steering wheel.

  • Page 11: Operation

    CRUISE CONTROL BUTTON The cruise control button is located on the tractor dash panel to the left of the ignition switch. Push the cruise control button while traveling forward at a desired speed. While holding the button in, release pressure from the AutoDrive pedal.
  • Page 12 SETTING THE CUTTING HEIGHT Select the height position of the cutting deck by placing the deck lift lever in any of the six different cutting height notches on the right side of the fender. Then adjust the deck wheels so that they are at least 1/4 inch to 1/2 inch above the ground when the tractor is on a smooth, flat surface such as a driveway.

  • Page 13: Stopping The Engine

    • While continuing to hold the cruise button in, lift your foot from the AutoDrive should feel the cruise latch engage). • If properly engaged, the cruise control button and the AutoDrive pedal should lock in the ™ down position, and the tractor will maintain the same forward speed.

  • Page 14: Adjustments

    MOWING This tractor is equipped with one of MTD ’s high quality cutting decks. The following information will be helpful when using the cutting deck with your tractor. WARNING To avoid possible injury, do not allow anyone in the area of the tractor while mowing.

  • Page 15: Seat Adjustment

    • Measure the distance from the outside of the left blade tip to the ground and the distance from the outside of the right blade tip to the ground. Both measurements taken should be equal. If they’re not, proceed to the next step. •...

  • Page 16: Brake Adjustment

    Front tire toe-in can be measured as follows: • Place the steering wheel in position for straight ahead travel. Insert a 1/4" dowel up through aligning holes in both the steering gear and support plate. See Figure 10. Drag Links Insert Dowel Here Support...

  • Page 17: Maintenance

    • Locate the PTO engagement rod and the PTO adjuster link by looking at the tractor’s underside. See Figure 12. • Remove the cotter pin that affixes the lower end of the PTO engagement rod to the PTO adjuster link. Save the pin. See Figure 12. •...
  • Page 18 CLEANING THE ENGINE AND DECK Any fuel or oil spilled on the machine should be wiped off promptly. Do NOT allow grass, leaves, and dirt to accumulate around the cooling fins of the engine or on any other part of the machine, especially the pulleys and other moving parts.
  • Page 19 CHANGING THE DECK BELT(S) All belts on your tractor are subject to wear and should be replaced if any signs of cracking, shredding or rotting are present. IMPORTANT: The V-belts found on your tractor are specially designed to engage and disengage safely. A substitute (non-OEM) V-belt can be dangerous by not disengaging completely.
  • Page 20 IMPORTANT: It is recommended that the PTO be readjusted after replacing the deck belt. Refer to PTO (POWER TAKE-OFF) ADJUSTMENT in the ADJUSTMENTS section of this manual for the proper procedure. • Remount the belt guards removed earlier. PTO (Top) Belt Bottom Belt CHANGING THE TRANSMISSION DRIVE BELT(S) All belts on your tractor are subject to wear and should be replaced if any signs of cracking, shredding or...
  • Page 21 Battery Tray Variable-speed Opening Pulley Single-speed Transmission Pulley Transmission NOTE: View shown from above tractor. • Remove the rear idler pulley from the double- idler bracket while unrouting the belt from around both the rear and the front idler pulley. Refer to Figure 16.
  • Page 22 • Remove the two hex bolts (from both sides of the tractor) that affix the PTO actuator bracket to the tractor frame. See Figure 19. Hex Bolts PTO Actuator Bracket Figure 19 • Carefully lower the PTO actuator bracket and the engine pulley as an assembly while removing the drive belt from the upper portion of the engine pulley.
  • Page 23 NOTE: The hex flange nut has a right-handed thread pattern. Do NOT attempt to force the nut in the incorrect direction. Doing so may damage the nut and create a safety hazard. Hex Flange Nut Spindle Cutting Blade Assembly Figure 22 To properly sharpen the cutting blades, remove equal amounts of metal from both ends of the blades along the cutting edges.

  • Page 24: Lubrication

    TIRES recommended operating approximately 10 psi for the rear tires and 14 psi for the front tires. Refer to the tire sidewall for exact tire SECTION 11: LUBRICATION WARNING: Always stop the engine and disconnect the spark plug wire(s) and ground against the engine before performing any maintenance.

  • Page 25: Troubleshooting Guide

    SECTION 12: TROUBLESHOOTING GUIDE Possible Trouble Cause(s) Engine will Safety switch There are two safety switches in the starting circuit of your unit: the brake pedal switch not crank button not and the PTO switch. Make certain the actuator is fully depressing the buttons on each depressed.
  • Page 26 Model 604 REF. PART DESCRIPTION 625-0051 Bulb/Socket Headlight Assembly 725-1739 Bulb Only 725-1649 Socket Only 629-0913 Wiring Harness 629-0924 Harness Adapter (for Kohler engines) 710-0599 Self Tapping Screw, 1/4-20 x .5 712-3006 Hex Nut, 1/4-20 725-1426 Solenoid, 12-volt, 100 Amp 725-1657A Snap Mount Safety Interlock Switch 725-1741...

  • Page 27: Parts List

    REF. PART DESCRIPTION 710-0788 Self Tapping Screw, 1/4-20 x 1.0 710-0599 Self Tapping Screw, 1/4-20 x .5 710-0751 Hex Cap Screw, 1/4-20 x .62 710-0895 Self Tapping Screw, 1/4-15 x .75 710-0924 Pan Phillips Screw, 1/4-20 x .75 710-3008 Hex Cap Screw, 5/16-18 x .75 712-0292 U-type Speed Nut, 1/4-20 712-3004A...
  • Page 28 Model 604...
  • Page 29 REF. PART DESCRIPTION 647-0040 Deck Stabilizer Rod 683-0197 Lift Shaft Assembly 711-0332 Clevis Pin, .5 x .78 712-0206 Hex Nut, 1/2-13 712-0431 Flange Lock Nut, 3/8-16 712-3004A Flange Lock Nut, 5/16-18 712-3083 Hex Nut, 1/2-13 714-0104 Internal Cotter Pin 714-0111 Cotter Pin 716-0106 E-ring...
  • Page 30 Model 604...

  • Page 31: Steering Assembly

    REF. PART DESCRIPTION 683-0263 Lower Frame Assembly 710-0604 Self-tapping Screw, 16-18 x .625 783-0726 RH Pivot Support Bracket 783-0727 LH Pivot Support Bracket 783-0728 Pivot Bar Bracket 710-0514 Hex Cap Screw, 3/8-16 x 1 (Grade 5) 711-1291 LH Drag Link 711-1292 RH Drag Link 712-0240...
  • Page 32 Model 604...

  • Page 33: Drive System

    REF. PART DESCRIPTION 17839 Shift Lever Bracket 17840 Transaxle Mounting Bracket 618-0386 Single-speed Transmission Assembly 631-0009 Shifter Knob 647-0041 Shift Lever 656-0048 Variable-speed Pulley Assembly 656-0051 Transmission Pulley, 8.5 x .5-36 683-0251 Double-idler Bracket 710-0189 Hex Cap Screw, 5/16-18 x 3 710-0227 Self Tapping Screw, #8-18 x .5 710-0347...
  • Page 34 Model 604...
  • Page 35 REF. PART DESCRIPTION 683-0278 PTO Engagement Link w/ Weld Pin 683-0282 PTO Actuator Bracket w/ Weld Nut 710-0514 Hex Cap Screw, 3/8-16 x 1.0 (Grade 5) 710-0597 Hex Cap Screw, 1/4-20 x 1.0 (Grade 5) 710-0604 Self Tapping Screw, 5/16-18 x .625 710-1260A Self Tapping Screw, 5/16-18 x .75 710-3011...

  • Page 36: Inch Deck

    Model 604 46-inch Deck 42-inch Deck...

  • Page 37: Cutting Decks

    REF. PART DESCRIPTION 17982 Reinforcement Spindle Plate 618-0240 Spindle Assembly, 5 Dia. 756-0959 Pulley Only 618-0241 Double Pulley Spindle Assembly 756-0603 Double Pulley Only 683-0254 Deck Adjustment Bracket w/ Weld Nut 683-0265 46-inch Deck Shell 710-0167 Carriage Screw, 1/4-20 x .5 710-0347 Hex Cap Screw, 3/8-16 x 1.75 710-0514...
  • Page 38 Model 604 Briggs & Stratton Intek Twin (for throttle) Kohler Single-cylinder (for choke) (for choke) (deflector must face forward) (deflector must face forward)
  • Page 39 Briggs & Stratton Intek Single REF. PART DESCRIPTION 710-0148 Self Tapping Screw, #8-32 x .375 710-0599 Self Tapping Screw, 1/4-20 x .5 710-0604 Self Tapping Screw, 5/16-18 x .625 710-1237 Screw, #10-32 x .625 710-1314 Socket Cap Screw, 5/16-18 x .625 710-1315 Self Tapping Screw, 3/8-16 x 1.25 712-0798...

  • Page 40: Cleveland, Ohio

    MANUFACTURER’S LIMITED WARRANTY FOR: For TWO YEARS from the date of retail purchase within the United States of America, its possessions and territories, MTD PRODUCTS INC will, at its option, repair or replace, for the original purchaser, free of charge, any part or parts found to be defective in material or workmanship.

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