Yard-Man 604 Operator's Manual
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Yard-Man 604 Operator's Manual

Automatic lawn tractor
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Operator's Manual
Automatic Lawn Tractor
Models 604 & 605
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 361131 Cleveland, Ohio 44136-0019.
MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019
FORM NO. 770-10448E.fm
PRINTED IN U.S.A.
(1/3/2005)

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  • Page 1 Operator’s Manual Automatic Lawn Tractor Models 604 & 605 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

    TABLE OF CONTENTS Content Page Content Page Maintaining Your Lawn Tractor Customer Support Important Safe Operation Practices Service Off Season Storage Slope Gauge Attachments & Accessories Tractor Set-Up Know Your Lawn Tractor Troubleshooting Parts List Operating Your Lawn Tractor Making Adjustments Warranty FINDING MODEL NUMBER This Operator’s Manual is an important part of your new lawn tractor.

  • Page 3: Important Safe Operation Practices

    SECTION 1: 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 this machine. Failure to comply with these instructions may result in personal injury.

  • Page 4: Slope Operation

    23. Muffler and engine become hot and can cause a 4. Follow the manufacturer’s recommendations for burn. Do not touch. wheel weights or counterweights to improve 24. Check overhead clearances carefully before driving stability. under low hanging tree branches, wires, door 5.
  • Page 5 e. Use extreme care when approaching blind e. Extinguish all cigarettes, cigars, pipes and corners, doorways, shrubs, trees or other other sources of ignition. objects that may block your vision of a child Never fuel machine indoors. who may run into the machine. g.
  • Page 6 8. Never tamper with the safety interlock system or For safety protection, frequently check components other safety devices. Check their proper operation and replace immediately with original equipment regularly. manufacturer’s (O.E.M.) parts only, listed in this 9. After striking a foreign object, stop the engine, manual.

  • Page 7: Slope Gauge

    SECTION 2: SLOPE GAUGE Use this page as a guide to determine slopes where you may not operate safely. Do not operate your lawn mower on such slopes.

  • Page 8: Tractor Set-Up

    SECTION 3: TRACTOR SET-UP Attaching the Battery Cables Service the engine with gasoline and oil as instructed in the separate Briggs & Stratton Operator/Owner Manual packed with your tractor. Read instructions carefully. NOTE: The positive battery terminal is marked Pos. (+).
  • Page 9 Attaching The Seat Standard Adjustment Seat styles vary by tractor model and there are three different styles available: Hex Screws • Standard Adjustment • Quick Adjustment & • Knob Adjustment Shoulder If the seat for your tractor did not come attached, refer Screws to Figure 3, Figure 4, and Figure 5 to identify your tractor’s seat style and follow the applicable instructions...

  • Page 10: Attaching The Steering Wheel

    Attaching The Steering Wheel Identifying the Mulch Plug (if so equipped) • If the steering wheel for your tractor did not come On tractor models so equipped, a mulch plug can either attached, the hardware for attaching it has been be found within the cutting deck’s discharge opening or packed within the steering wheel, beneath the packed separately with your unit.

  • Page 11: Know Your Lawn Tractor

    SECTION 4: KNOW YOUR LAWN TRACTOR NOTE: Steering Wheel not shown for clarity. † If so equipped Figure 8 Systems Indicator Monitor Cruise Control Button PTO (Blade Engage) Lever Ignition Switch Module Choke Knob Brake Pedal Parking Brake Button Drive Pedal Shift Lever Deck Lift Lever Cup Holder...

  • Page 12: Throttle Control Lever

    Throttle Control Lever Ignition Switch Module The throttle control lever is located on the right side of WARNING: Never leave a running machine the tractor’s dash panel. This lever controls the speed unattended. Always disengage PTO, move of the engine and, on some models, when pushed all shift lever into neutral position, set parking the way forward, the choke control also.

  • Page 13: Seat Adjustment Lever

    Systems Indicator Monitor PTO (Blade Engage) Lever Your tractor is equipped with a ammeter as part of its systems indicator monitor. Locate the monitor on the left side of your dash panel and compare it to Figure 11. A M PS The PTO (Blade Engage) lever is located on the left side of the dashboard next to the steering wheel.

  • Page 14: Shift Lever

    NOTE: Cruise control can NOT be engaged at the WARNING tractor’s fastest ground speed. If the operator should attempt to do so, the tractor will automatically decelerate to the fastest optimal mowing ground speed. AVOID SERIOUS INJURY OR DEATH Shift Lever •...

  • Page 15: Operating Your Lawn Tractor

    SECTION 5: OPERATING YOUR LAWN TRACTOR Safety Interlock Switches 3. Depress the REVERSE PUSH BUTTON (Orange, Triangular Button) at the top, right corner of the key This tractor is equipped with a safety interlock system switch module. The red indicator light at the top, left for the protection of the operator.

  • Page 16: Setting The Cutting Height

    Setting the Cutting Height damage. Repair the damage before restarting and operating Select the height position of the cutting deck by placing • If the blades are engaged, place the PTO (Blade the deck lift lever in any of the six different cutting height Engage) lever in the disengaged (OFF) position.

  • Page 17: Engaging The Blades

    • Avoid turns when driving on a slope. If a turn must The engine will automatically shut off if the IMPORTANT: be made, turn down the slope. Turning up a slope PTO is engaged with the shift lever in position for greatly increases the chance of a roll over.
  • Page 18 Mulching This will allow the clippings to discharge out the (If Equipped) side. See Figure 14. Select models come equipped with a mulch kit which Carriage Screw incorporates special blades, already standard on the tractor, in a process of recirculating grass clippings repeatedly beneath the cutting deck.

  • Page 19: Making Adjustments

    SECTION 6: MAKING ADJUSTMENTS WARNING: • Retighten the two jam nuts loosened earlier when Never attempt to make any proper adjustment is achieved. adjustments while the engine is running, except where specified in the operator’s Side to Side manual. If the cutting deck appears to be mowing unevenly, a side to side adjustment can be performed.

  • Page 20: Seat Adjustment

    Parking Brake Adjustment To adjust the position of the seat on models equipped with a seat adjustment lever, move the lever to the left and slide the seat forward or rearward. Make sure seat WARNING: Never attempt to adjust the is locked into position before operating the tractor.

  • Page 21: Steering Adjustment

    Steering Adjustment • Remove the hex nut on the top of ball joint. See Figure 20. If the tractor turns tighter in one direction than the other, • Thread the ball joint toward the jam nut to shorten or if the ball joints are being replaced due to damage or the drag link.

  • Page 22: Maintaining Your Lawn Tractor

    SECTION 7: MAINTAINING YOUR LAWN TRACTOR WARNING: • Refill the engine with new motor oil. Before performing maintenance or repairs, disengage PTO, Refer to the Briggs & Stratton Operator/ IMPORTANT: move shift lever into neutral position, set Owner Manual packed with your unit for information parking brake, stop engine and remove key to regarding the quantity and proper weight of motor oil.

  • Page 23: Service

    SECTION 8: SERVICE Cutting Deck Removal • Gently slide the cutting deck toward the front of the tractor allowing the hooks on the deck to release To remove the cutting deck, proceed as follows: themselves from the deck stabilizer rod. •...

  • Page 24: Cutting Blades

    Jump Starting • Use a 15/16" wrench to remove the hex flange nut that secures the blade to the spindle assembly. See WARNING: When removing or installing Figure 23. the battery, follow these instructions to Wood Block Hex Flange Nut prevent the screwdriver from shorting against the frame.

  • Page 25: Changing The Deck Belt

    42” Deck Use a torque wrench to tighten the blade IMPORTANT: spindle hex flange nut to between 70 foot-pounds and • Remove the belt keeper rod from around the 90 foot-pounds. engine pulley. • Insert a 3/8”-drive ratchet wrench (set to loosen) Fuses into the square hole found in the idler bracket on the left side of the deck’s surface.
  • Page 26 42-inch Decks Engine Pulley Left Hand Spindle Pulley Right Hand Spindle Pulley Idler Pulleys Figure 26 46-inch Decks Engine Pulley PTO Idler Bracket Deck belt (Bottom) (mounted on tractor) PTO belt (Top) Deck Idler Pulley Right Hand Pulley (beneath belt guard) Left Hand Double Pulley Center Pulley...

  • Page 27: Off Season Storage

    SECTION 10: ATTACHMENTS & ACCESSORIES The following attachments and accessories are compatible for Model 604 and 605 Lawn Tractors. See the retailer from which you purchased your tractor, an authorized MTD Service Dealer or phone (800) 800-7310 for information regarding price and availability.

  • Page 28: Troubleshooting

    SECTION 11: TROUBLESHOOTING Trouble Possible Cause(s) Corrective Action Engine fails to start PTO engaged. Place PTO lever in disengaged (OFF) position. Parking brake not engaged. Engage parking brake. Spark plug wire(s) disconnected. Connect wire(s) to spark plug(s). Throttle control lever not in correct Place throttle lever to FAST position.

  • Page 29: Parts List

    SECTION 12: ILLUSTRATED PARTS LIST (for throttle) (for choke) REF. PART REF. PART DESCRIPTION DESCRIPTION 710-0227 Screw, #8-18 x.50 751-0535 Fuel Line Hose 710-0599 Screw, 1/4-20 x.50 751-0564A Muffler Deflector 710-0726 Screw, 5/16-18 x.750 751-0616A Muffler, Twin Inlet 710-1237 Screw, #10-32 x.625 751-0650B RH Exhaust Pipe 710-1314A...
  • Page 30 Models 604 & 605...
  • Page 31 Pivot Bracket, Support LH 783-0728 Pivot Bracket, Bar 631-04008 Steering Wheel, 3 Spoke, Soft Grip 731-04065 Steering Wheel Cover (Model 604) 731-04040 Steering Wheel Cap (Model 605) 738-04128 Shlder Screw,.5 x 2.380, 3/8-16 (42” Deck) 738-1011A Shlder Screw,.5 x 2.2, 3/8-16 (46” Deck)
  • Page 32 Model 604...
  • Page 33 Model 604 REF. PART REF. PART DESCRIPTION DESCRIPTION 710-3015 Hex Cap Screw, 1/4-20 x.75 712-0142 Hex Nut, 8-32 710-0599 Self-tapping Screw, 1/4-20 x.5 731-05002 Dash Panel 712-04064 Flange Lock Nut, 1/4-20 731-04213 Parking Brake Lever 710-0895 Self-tapping Screw, 1/4-15 x.75...
  • Page 34 Model 605...
  • Page 35 Model 605 Ref. Part Ref. Part Description Description 710-0726 Screw, 5/16-12 x.750 731-04215 Cruise Control Button 710-0599 Self-tapping Screw, 1/4-20 x.5 731-04217 Parking Brake Button 710-0751 Hex Cap Screw, 1/4-20 x.62 736-0142 Flat Washer, 9/32 x 1/2 x 1/16 746-1086 Throttle Control/Cable 747-1196 Brake/Cruise Pivot Rod...
  • Page 36 Models 604 & 605 Left Hand Transmission Bolt Mounting...
  • Page 37 647-0032A Control Assembly, Speed 736-0119 Lock Washer, 5/16 683-0266 Pedal Assembly 634-0177 Whl Ass’y Comp., 20 x 10 x 8 (Model 604) 710-0650 Screw, 5/16-18, 0.875 634-0104 Whl Ass’y Comp., 20 x 8 x 8 (Model 605) 710-1260A Screw,5/16-18, 0.750...
  • Page 38 Models 604 & 605 (42” Deck) To Deck For a proper IMPORTANT: working machine, use Factory Approved Parts. V-belts are designed to engage and disengage safely. A substitute (non OEM) V-belt can be dangerous by not disengaging completely.
  • Page 39 Models 604 & 605 (42” Deck) REF. PART REF. PART DESCRIPTION DESCRIPTION 17962 Plate, Switch 783-0744A Stop Bracket, Engagement 647-04036 Lever Assembly, Engagement 683-04173 Frame Assembly, Lower 710-0809 Screw, 1/4-20 x 1.250 710-0607 Screw, 5/16-18, 0.500 710-0859 Screw, 3/8-16, 2.50 710-0642 Screw, 1/4-20, 0.750...
  • Page 40 Models 604 & 605 (46” Deck) For a proper IMPORTANT: working machine, use Factory Approved Parts. V-belts are designed to engage and disengage safely. A substitute (non OEM) V-belt can be dangerous by not disengaging completely.
  • Page 41 Models 604 & 605 (46” Deck) REF. PART REF. PART DESCRIPTION DESCRIPTION 17962 Plate, Switch 747-1112D Engagement Handle, Deck 647-0064 Lever Assembly, Engagement 748-0415B Spacer,.385 ID x.635 OD x 1.54 683-0302 Plate Assembly, Engagement 750-0956 Spacer, 1.010 x 1.400 x.825 710-0224 Screw, #10-16, 0.500...
  • Page 42 Models 604 & 605 Models w/ Manually Adjusting Seat Models w/ Quick Adjust Seat...
  • Page 43 Models 604 & 605 REF. PART REF. PART DESCRIPTION DESCRIPTION 710-1268 Screw, #10-16 x.375 783-04314A Fender (Model 605G) 712-04063 Nut, Flange Lock, 5/16-18, GrF, Nylon 783-0677 Adjustment Brkt, Lift (Model 604H/605H) 712-3027 Nut, Flange Lock, 1/4-20 783-1010A Adjustment Brkt, Lift (Model 605G)
  • Page 44 Models 604 & 605...
  • Page 45 Models 604 & 605 REF. PART DESCRIPTION 732-0614 Ring, Wire 716-0231 Ring, E Type,.750 736-0336* Flat Washer, 5/8 x 1.0 x.030 736-0337* Flat Washer, 5/8 x 1.0 x.040 736-0349* Flat Washer, 5/8 x 1.0 x.020 736-0335 Washer, Thrust.635 x 1.26 x.06 710-1325 Self-tapping Screw, 1/4-20 x 1.625...
  • Page 46 Models 604 & 605 (42” Deck)
  • Page 47 Models 604 & 605 (42” Deck) REF. PART REF. PART DESCRIPTION DESCRIPTION 618-0624 Pulley/ Spindle Assembly 736-0270 Bell Washer,.265 x.75 x.062 683-04138 Deck Brake Assembly 736-0289 Shoulder Bushing,.320 ID x.135 Lg. 683-04162 42” Deck Assembly 736-0267 Flat Washer,.385 x.87 x.06...

  • Page 48: Warranty

    Models 604 & 605 (46” Deck)
  • Page 49 Models 604 & 605 (46” Deck) REF. PART REF. PART DESCRIPTION DESCRIPTION 17116 Brake Assembly, Deck 732-0594A Spring, Extension,.91 Dia x 7.33 17258D RH Belt Cover, Deck 46” 732-04197 Spring, Extension,.68 OD x 5.00 Lg 618-0240A Spindle Assembly, 5.00 Dia.
  • Page 50 NOTES...
  • Page 51 NOTES...
  • Page 52 MANUFACTURER’S LIMITED WARRANTY FOR: The limited warranty set forth below is given by MTD LLC with MTD does not extend any warranty for products sold or respect to new merchandise purchased and used in the exported outside of the United States, its possessions United States, its possessions and territories.

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