Yard-Man 604 Operator's Manual
Autodrive lawn tractor
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Table of Contents
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O
M
PERATOR'S
ANUAL
AutoDrive
Lawn Tractor
™
Model 604
Model U604H Shown
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. 770-10235A
(9/99)
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Table of Contents
Related Manuals for Yard-Man 604
Summary of Contents for Yard-Man 604
- Page 1 PERATOR’S ANUAL AutoDrive Lawn Tractor ™ Model 604 Model U604H Shown 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).
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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: Slope Operation
• 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
Slope Gauge... -
Page 7: Attachments & Accessories
FastAttach ™ OEM-190-112 Mulch Kit (For 42-inch Decks Only) OEM-190-118 Mulch Kit (For 46-inch Decks Only) OEM-190-603 FastAttach ™ OEM-190-604 TracPac Storage Container (mounts on rear of tractor) ™ OEM-190-822 FastAttach ™ OEM-190-823 42-inch Two-stage Snow Thrower SECTION 6: TRACTOR SET-UP... -
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* G AutoDrive Pedal ™ Tractors vary by model and are equipped with either a PTO lever or a PTO knob, NEVER both. NOTE: Any reference in this manual to the RIGHT or LEFT side of the tractor is observed from operator’s position. - Page 9 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 ELECTRIC PTO (POWER TAKE-OFF) KNOB To engage the power to the cutting deck or other attachments, pull outward on the PTO knob. Push the PTO knob inward to disengage the power to the attachments. NOTE: The PTO knob must be in the disengaged (OFF) position when starting the engine, when shifting into reverse and if the operator leaves the seat.
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Page 11: Operation
SHIFT LEVER The shift lever is located on the left side of the fender three positions, FORWARD, NEUTRAL and REVERSE. The brake pedal must be depressed and the tractor must not be in motion when moving shift lever. IMPORTANT: Never force the shift lever. -
Page 12: Setting The Cutting Height
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 • 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.
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Page 14: Adjustments
• The operator must remain in the tractor seat at all times. If the operator should leave the seat without pushing the PTO knob inward into the disengaged (OFF) position, the tractor’s engine will shut off. IMPORTANT: The PTO knob cannot be in the engaged (ON) position when the tractor is driving in the reverse direction. - Page 15 • With the tractor parked on a firm, level surface, place the lift lever in the top notch (highest position) and rotate the blade nearest the discharge chute so that it is parallel with the tractor. • Measure the distance from the front of the blade tip to the ground and the rear of the blade tip to the ground.
- Page 16 SEAT ADJUSTMENT To adjust the position of the seat, move the seat adjustment lever (located under the seat) to the left and slide the seat forward or backwards. See Figure 9. Make sure seat is locked into one of the six adjustment positions before operating the tractor.
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Page 17: Maintenance
• Loosen, but do NOT remove, the hex nut found on the right side of the brake assembly. See Figure 12. • Using a feeler gauge, set the gap between the brake disc and the brake puck at .011". • Re-tighten the hex nut loosened earlier. SECTION 10: MAINTENANCE WARNING: Disconnect the spark plug... - 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.
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Page 19: Changing The Deck Belt
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: Changing Transmission Drive Belt
Engine Pulley Belt Guard Idler Pulleys Left Hand Pulley NOTE: Belt covers not shown for clarity. 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 rotting are present. - Page 21 Battery Tray Variable-speed Opening Pulley Single-speed Transmission Pulley Transmission NOTE: View shown from above tractor. Lower Drive Belt NOTE: Proper removal of the lower drive belt requires the removal of several tractor components. Read through the following procedure prior to attempting it to determine if you feel you could successfully complete it.
- Page 22 • Remove the hex bolt from the center of the engine pulley (or the electric PTO clutch on units so equipped) and gently lower it off of the engine crankshaft. Be careful not to lose any washers or spacers which may be found on top of the engine pulley or the electric PTO clutch.
- Page 23 NOTE: The hex flange nut has a right-handed (normal) thread pattern. Do NOT attempt to force the nut in the incorrect direction. Doing so may damage the nut and create a safety hazard. To properly sharpen the cutting blades, remove equal amounts of metal from both ends of the blades along the cutting edges.
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Page 24: Lubrication
SECTION 11: LUBRICATION WARNING: Always stop the engine and disconnect the spark plug wire(s) and ground against the engine before performing any maintenance. ENGINE Lubricate the engine with motor oil as instructed in the separate engine manual packed with your unit. PIVOT POINTS Lubricate all pivot points (AutoDrive LINKAGE... -
Page 25: Troubleshooting Guide
SECTION 12: TROUBLESHOOTING GUIDE Possible Trouble Cause(s) Engine will Safety switch There is one safety switch in the starting circuit of your unit: the brake pedal switch. not crank button not Make certain the actuator is fully depressing the button on this switch. The Operator depressed. -
Page 26: Parts List
Model 604... - Page 27 REF. PART DESCRIPTION 710-3015 Hex Cap Screw, 1/4-20 x .75 710-0599 Self-tapping Screw, 1/4-20 x .5 712-3006 Hex Nut, 1/4-20 710-0895 Self-tapping Screw, 1/4-15 x .75 710-0924 Pan Phillips Screw, 1/4-20 x .75 710-0528 Hex Cap Screw, 5/16-18 x 1.25 712-0292 U-type Speed Nut, 1/4-20 712-3004A...
- Page 28 Model 604...
- Page 29 For instance, if a part numbered 700-xxxx is painted Yard-Man Green, the part number to order would be 700-xxxx-0665. Yard-Man Green: 0665 Yard-Man Yellow: 0674 Powder Black: 0637...
- Page 30 Model 604...
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Page 31: Steering Assembly
For instance, if a part numbered 700-xxxx is painted Yard-Man Green, the part number to order would be 700-xxxx-0665. Yard-Man Green: 0665 Yard-Man Yellow: 0674 Powder Black: 0637... - Page 32 Model 604...
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Page 33: Drive System
REF. PART DESCRIPTION 783-1015 Shift Lever Support 17840 Transaxle Mounting Bracket 618-0307C Single-speed Transmission Assembly 631-0009 Shifter Knob 647-0045 Shift Lever 656-0048 Variable-speed Pulley Assembly 656-0051A 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: Single-Speed Transmission Parts
Model 604 Units with 618-0307C Transmission ONLY... - Page 35 REF. 12a 736-0336 12b 736-0337 12c 736-0349 *If rebuilding transmission for any reason, use applicable flat washer (12a, 12b, or 12c) in this application allowing proper end play as instructed in MTD ’s Service Manual. IMPORTANT: One of two different transmissions may be found on your lawn tractor (618-0307B & 618-0307C). Refer to the model plate found on the rear right portion of the transmission’s lower housing before ordering replacement service parts.
- Page 36 Model 604 Units Equipped w/ Electric PTO 70 (PTO belt for 42" deck shown)
- Page 37 For instance, if a part numbered 700-xxxx is painted Yard-Man Green, the part number to order would be 700-xxxx-0665. Yard-Man Green: 0665 Yard-Man Yellow: 0674 Powder Black: 0637...
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Page 38: Inch Deck
Model 604 46-inch Deck See PTO breakdown †46-inch Deck Brake Assembly ‡ A double-pulley spindle is found in this location on 46-inch decks engaged by electric PTOs only. Use 618-0240 on manual PTO decks. 42-inch Deck 51‡ 81/83 82/84 13 †... -
Page 39: Cutting Decks
REF. PART DESCRIPTION 16606 Retainer Hook 618-0324 Spindle Assembly, 5.75 Dia. 683-0198B 42-inch Deck Shell 683-0254 Deck Adjustment Bracket w/ Weld Nut 683-0303 Deck Brake Assembly, 42-inch Decks† 710-0520 Hex Cap Screw, 3/8-16 x 1.5 710-0528 Hex Cap Screw, 5/16-18 x 1.25 710-0604A Self-tapping Screw, 5/16-18 x .625 710-0751... - Page 40 Model 604 Briggs & Stratton Intek Twin (for throttle) Kohler Single-cylinder (for choke) (for choke) (deflector must face forward) (deflector must face forward)
- Page 41 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 .5 710-0604A 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 1.25 712-3017 Hex Nut, 3/8-16 721-0460...
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Page 42: Electrical System
Model 604 18/19 Electric PTO harness shown. Manual PTO harness will vary slightly REF. 625-0051 629-0939 629-0944 629-0126 710-0599 712-3006 725-1426 725-1657A 725-1741 725-1743 725-1745 725-1747 736-0222 736-0329 629-0309 725-1752 783-0462 725-3007A 729-0357 725-1381 629-0924 † Found on tractors engaged by an electric PTO only. - Page 43 Notes...
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Page 44: P.o. Box
MANUFACTURER’S LIMITED WARRANTY FOR: The limited warranty set forth below is given by MTD PRODUCTS INC (“MTD”) with respect to new merchandise purchased and used in the United States, its possessions and territories. MTD warrants this product against defects in material and workmanship for a period of two (2) years commencing on the date of original purchase and will, at its option, repair or replace, free of charge, any part found to be defective in...