MTD 604H manual

Oper ator’ s Man ual PRINTED IN U .S .A. FORM NO . 770-10448D. fm (11/2003) IMPOR T ANT : Read saf ety rules and instr uctions carefully bef ore operating equipment. Auto Drive Lawn Tractors Models 604G & 604H Warning: This unit is equipped with an internal combustion engine a nd should not be used on or near any unimproved forest-covered, br[...]

2 TABLE OF CONTENTS FINDING MODEL NUMBER This Operator’s M anual is an important part of your new lawn tractor. It will help you assemble, prepare and maintain the unit fo r best performance. Please read and understand what it says. Before you star t assembling your new equipment , please locate the model plate under th e seat of the tra ctor and[...]

3 SECTION 1: IMPORTANT SAFE OPERATION PRACTICES General Operation 1. Read, understand, and follow all instructions on the machine and in the manual(s) before attempti ng to assemble and ope rate. Keep this manual in a safe place for future and regular re ference and for o rdering replacement parts. 2. Be familiar with all controls and their proper [...]

4 27. Use only acce ssories and attachments approved for this machine by the machine manufacturer. Read, understand and follow all in structions provided with the approved accessory or attachmen t. 28. Data indicates th at operators, age 60 years and above, are involved in a large percentage of ridi ng mower- related injuries. These opera to rs sho[...]

5 b. Never fill containers inside a vehicle or on a truck or trailer bed with a pla stic liner. Always pla ce containers on the ground away from your vehicle before filling. c. When practical, remove gas-powered equipment from the truck or trailer and refue l it on the ground. If this is not possible, then refuel such equip ment on a trailer with a[...]

6 SECTION 2: SLOPE GAUGE 15° SIGHT AND HOLD THIS LEVEL WITH A VER TICAL TREE A POWER POLE A CORNER OF A BUILDING OR A FENCE POST F O L D O N DO T T E D L I N E , RE P RE S E NT I NG A 1 5 ° S L O P E Do not mow on inclines with a slope in excess of 15 de grees (a rise of appr oximately 2-1/2 feet every 10 fee t). A riding mower could overturn a n[...]

7 SECTION 3: TRACTOR SET-UP NOTE: This manual covers spe cifications of two models. Plea se follow instruct ions and parts numbe rs pertaining to your tracto r only. Attaching the Battery Cables NOTE: If these cables are already attached, pr oceed to “Attaching Ste ering Wheel.” IMPORT ANT : The positive battery terminal is marked Pos. (+). The[...]

8 2. Slide the seat slightly rearward in the sea t pivot brac ket, lining up the rear slots in the pivot bracket with the remaining two holes in the seat’s base. 3. Select desired posit ion for the seat, and secure with the two knobs removed earlier. See Figure 3. Gas and Oil Fill-Up The gasoline tan k is located under the hood and dep ending on [...]

9 SECTION 4: OPERATION Know the Controls Read this owner’s manual and safety rules befor e operating your lawn mower. Compare figure below with your lawn tractor to lear n about the loction and purpose of various controls and adjustments. Save th is manual for future reference. It is very important to follow the instructions and operate the con t[...]

10 Throttle Control Lever The throttle contr ol lever controls the speed of the en gine. When set in a given position, the throttle will maintain a uniform engine speed. IMPORT ANT : When operating th e tractor with the cutting deck engage d, throttle co ntrol lever must always be in the FAST (rabbit) position. Choke Control The choke control can b[...]

11 Headlights • To turn on the hea dlights, rotate the same ignitio n key from ON position to ON/LIGHTS position of the ign ition switch. • To turn off th e headlights, rotate the i gnition key from ON/LIGHTS position to eith er ON position (to leave the engine running) or OFF position (to shut the engine off). Systems Indicator Moni tor / Hour[...]

12 • To change to th e reverse direction when operating wit h cruise control, depress t he brake pedal to disengage the cruise control and bring the tracto r to a complete stop. Th en place the shift lever in the REVERSE position and depress the drive pedal. Seat Adjustment Lever To adjust the seat forward or backward, loosen the two seat adjustm[...]

13 Starting the Engine NOTE: Re fer to the TRACTOR SET-UP o n page 7 manual f or gasoline and oil f ill-up instructions. 1. Insert the tractor key in to the ignition switch. 2. Disengage t he PTO (Blade Engage) lever. 3. Engage the t ractor’s parking brake. 4. Pull the Choke Contr ol knob outward. 5. Turn the ig nition key clockw ise to the START[...]

14 • For best results it is reco mmended that the first two laps be cut with the discharge thrown towards the center. After the first two laps, re verse the direction to throw the discharge to the outside for the bala nce of cutting. This will give a better app earance to the lawn. • Do not cut the grass t oo short. Short grass invite s weed gr[...]

15 SECTION 5: MAKING ADJUSTMENTS Seat 1. Flip the seat up as shown in Figure 7. 2. Loosen the two seat adjust ment knobs located under the seat. See Figure 7. 3. Slide the seat forwa rd or rearward, then tighte n the knobs to lo ck the seat at t he desired po sition. 4. Put the seat down to the operating position. Steering • If the tractor tur ns[...]

16 1. With the trac tor parked on a firm, level surface, place the deck lift lever in the to p notch (highest position) and rotate the blade nearest the discharge chute so that it is parallel with the tractor. 2. Measure th e distance from the fron t of the blade tip to the ground an d the rear of the blade tip to the gro und. The first meas uremen[...]

17 SECTION 6: MAINTAINING YOUR LAWN TRACTOR Engine Refer to th e engine manua l for engine maintenance instructio ns. • Check engine oil level before ea ch use as instructed in the engine man ual . Read and follow instructions carefully. Refer to this manual for details about type and grade of oil. Changing Engine Oil 1. Unscrew oil fill cap and [...]

18 tractor and/or its serviceability . Tire Pre ssu re IMPORT ANT : Never exceed the maximum infl ation pressure shown on the sidewall of the tire . • The recommended operating tire pressure is approximately 10 psi for the r ear tires and 14 psi for the front tires. Refer to the tire sid ewall for exact tire manufacturer’s recomme nded or maxim[...]

19 4. Connect the ot her end of the negative (-) ca ble to the engine block of the stalled tractor, away from the batte ry, and stand back. 5. Start the stalle d tractor and leave it running to char ge the battery. 6. Disconne ct the negative (-) jumpe r cable from the tractor . 7. Disconnect the ot her end of the negative (-) jumper ca ble from th[...]

20 IMPORT ANT : Each cutting blade edge has to be g round equally to maintain p roper blade b a lance. A p oorly balanced blade will cause excessive vibratio n, may damage the tractor and/or result in personal injury. 5. Test the blade by balancing it on a round shaft screwdriver. Grind metal fr om the heavy side until it balances evenly. 6. When r[...]

21 IMPORT ANT : When removin g the batter y, disconnect the NEGATIVE (Bla ck) wire from its terminal first, f ollowed by the POSITIVE (Red) wire. Re-install in re verse order. Upper Drive Belt 1. Locate the transmission idl er pulley on the upper drive belt by looking through the ba ttery tray opening. See Figure 15. 2. Grasp the bracke t and pivot[...]

22 After replacing the drive belts, adjust the drive pedal on your tractor as fo llows: 1. Locate the sp eed control assem bly on the underside of the st eering support bracket. See Figure 17. 2. Remove both hair pin clips from the pin which is fastened to the speed cont rol assembly (be careful not to lose the small flat washers found on the pin).[...]

23 4. Remove the PTO belt from ar ound the engine pulley and the PTO idler pulley. 5. Grasp the deck idler pulley and pivot it toward the left side of the deck to relieve tension on the deck belt. 6. Remove the belt from ar ound all pulleys, including the deck idler pulley. 7. Route t he new belts as in Figure 18 & Figure 19. Remount belt guard[...]

24 SECTION 7: OFF-SEASON STORAGE • Clean and lubricate th e tractor as instructed on page 17 bef ore storing for an extended per iod. • Follow instructions in the Seasonal Storage section of th e engine manual for proper engine care p rior to storin g your tracto r. • It is not necessary to r emove the battery from the tracto r for storage. H[...]

25 SECTION 8: TROUBLESHOOTING NOTE: For unsolved problems and/or further d etails, visit www.mtdproduct s.com or call t he Customer Support Line at 1-800-800 -7310. Tr o u b l e P ossible Cause(s) Corrective Action Engine fails to start 1. PTO lever/knob engaged. 2. Parking brake not engage d. 3. Spark plug wire(s) disconnected. 4. Throttle control[...]

26 SECTION 9: PARTS LIST FOR MODELS 604G & 604H A B B A 13 11 4 12 4 10 4 1 1 19 37 3 3 18 1 34 33 21 19 36 17 20 6 9 19 8 22 27 29 4 30 38 35 39 25 28 24 20 17 14 15 5 7 22 22 18 31 32 2[...]

27 Models 604G & 604H REF . NO . PA R T NO . DESC RIPTION 1 710-3015 He x Cap Screw , 1/4-20 x .75 2 710-0599 Self-tapping Screw , 1/4-20 x .5 3 712-0324 Hex Loc k Nut, 1/4-20 4 710-0895 Self-tapping Screw , 1/4-15 x .75 5 710-0924 P an Phillips Screw , 1/4-20 x .75 6 710-0376 Hex Ca p Screw , 5/16-18 x 1.0 7 712-0292 U-type Speed Nut, 1/4-20 8[...]

28 33 27 47 34 41 40 11 49 28 46 39 44 28 14 8 43 17 21 10 20 1 2 23 21 2 2 24 6 2 43 45 18 25 19 5 3 4 1 9 7 15 6 26 13 35 38 3 2 18 24 6 29 3 0 31 6 6 36 14 37 51 Models 604G & 604H[...]

29 Ref. No. Par t No. Description 1 747-1130B Deck Stabiliz e r Rod 2 683-0197B Lift Shaft Assembly 3 711-0332 Cle vis Pin, .5 x .7 8 4 712-0206 He x N ut, 1/2-13 5 712-0431 Flange Lock Nut, 3/8-16 6 712-0429 Lock Nut, 5 /16-18 7 712-3083 He x N ut, 1/2-13 8 714-0104 Internal Cotter Pin 9 714-0145 Internal Cotter Pin 10 716-0106 E-Ring 11 720-0311 [...]

30 Models 604G & 604H 24 29 2 1 2 5 3 9 6 38 7 10 12 13 11 13 14 15 16 17 18 19 21 20 22 20 25 26 27 28 30 29 3 4 30 36 32 37 39 33 11 8 22 4 23 31 40 32[...]

31 Ref. No. Pa r t No. Description 1 710-1260A Self-tapping Screw , 5/16-18 x .75 2 710-0604A Self-tapping Screw , 16-18 x .625 3 783-0726B RH Pivot Suppor t Brac ket 4 783-0727A LH Pivot Suppor t Brack et 5 783-0728 Pivot Bar Brac ket 6 710-0514 Hex Cap Scre w , 3/8-16 x 1 (Grade 5) 7 711-1408 RH Drag Link 8 711-1409A LH Drag Li nk 9 712-0240 Jam [...]

32 IMPORT ANT : For a proper working machine, use Factory App roved Parts. V-belts are designed to engage and diseng age safely. A substitute (non OEM) V-belt ca n be dangerous by not disengaging compl etely. B B A A C D E E D C 19 6 4 22 37 34 9 6 18 15 11 14 26 38 3 13 1 24 25 33 12 35 31 35 27 6 8 10 12 30 20 35 21 16 29 23 36 2 5 39 40 41 42 43[...]

33 Ref. No. Par t No. Description 1 178 40 Mounting Bracke t 2 618 -04133 Drive Assembly 3 618 -04147 Variable Spd. Pulley Assembly 4 647 -04020 Shift Lever Assembly 5 710 -0607 TT Screw 5/16-18 x 0.5 6 710 -0726 AB Screw 5/16-12 x 0.75 7 710 -0809 TT Screw 1/4-20 x 1.25 8 710 -1007 TT Sems Screw 3/8-16 x 1.5 9 710 -1266 Hex Bolt 5/16-18 x 3.5 10 7[...]

34 8 3 2 5 6 8 4 10 9 7 12 1 1 11 12 1 3 14 3 17 15 16 18 19 20 21 22 23 24 25 28 29 27 26 Models 604G & 604H[...]

35 *Use applic ab le flat washer (12a, 12b or 12c) in this application allowing .0150/.0020 in end-pla y NOTE: If rebuilding the upper housing of the transmission, add two ounces of Unirex ® N3 grease (Part No. 73 7-0289) in the input shaft cavity. Ref. No. Par t No. Description 1 732-0614 Ring, Wire 2 716-0231 Ring, E Type, .750 3 736-0336 Flat W[...]

36 Models 604G & 604H A A A 2 14 15 13 40 33 34 10 23 39 7 23 26 31 12 34 30 19 16 3 16 24 24 21 24 20 35 37 28 25 9 11 29 29 36 27 8 6 48 8 11 27 27 41 36 20 42 16 24 43 44 16 45 24 16 46 30 34 12 34 13 2 10 23 7 26 47 11 18 22 32 5 17 4 1 11 Model 604H Model 604G 49 50 51 52 53 54 55 56 57 58 55 60 61 55 58 64 59 62 63[...]

37 Models 604G & 604H Ref. No. P art No. Description 1 17962 Switch Plate 2 647-0064 Lev er Assembly: PT O Engage 3 683-0450 Plate Assembly: PT O Engage 4 710-0224 AB Screw #10-16 x 0.5 5 710-0276 Carr iage Screw: Special 6 710-0520 Hex Bolt 3/8-16 x 1.5 7 710-0726 AB Screw 5/16-12 0.75 8 710-0831 Hex Bolt 3/8-16 x 5.5 9 710-3029 Hex Bolt 7/16-[...]

38 Models 604G & 604H 9 7 11 (for choke) 13 4 12 6 9 22 18 19 20 8 14 5 5 16 15 1 17 5 24 3 2 21 23 REF . NO . PA R T NO . DESCRIPTION 1 710-0227 Self-tapping Screw , #8-18 x .5 2 710-0599 Self-tapping Screw , 1/4-20 x .5 3 710-0604A Self-tapping Screw , 5/16-18 x .625 4 710-1237 Screw , #10-32 x .625 5 710-1314A Sock et Ca p Scre w , 5/16-18 x[...]

39 Models 604G & 604H P ARKING BRAKE INDICA T OR LIGHT ST ARTER AL TERNA TOR AFTERFIRE SOLENOID MA GNETO AL TERNA TOR BLK OIL SENSOR LO W OIL INDICA TOR LIGHT HEADLIGHTS HEADLIGHTS B A FUSE 20 AMP FUSE 20 AMP BLK RED SOLENOID 725-1426 RED BRAKE SWITCH 725-1657A WHT YEL BLU L M A1 G A2 Ammeter SEA T SWITCH 725-1303 725-1439 PTO SWITCH 725-1657A [...]

40 Model 604G 12 34 20 38 20 34 31 42 15 41 26 10 45 37 6 2 24 8 21 29 7 17 22 32 23 25 36 15 30 13 27 33 19 18 1 11 14 35 16 16 3 40 9 4 17 43 C C 37 10 44 39 46 19 5 47 32 48 28 50 49 B 54 51 57 16 58 56 55 60 61 62 63[...]

41 Model 604G Ref. No. P ar t No. Description 1 711-04069 Grass Catcher Pin, 1/4-20 2 618-0565 Spindle Assy., 5.75 Dia. w/ Fitting 3 683-0198G 42-inch Deck Shell 4 683-0254 Deck Adj. Bracket w/ Weld Nut 5 736-0140 Flat Washer, .385 x .62 x .063 6 710-0520 Hex Cap Screw, 1/4-20 x 1.5 7 710-0528 Hex Cap Screw, 5/16-18 x 1.25 8 710-0726 Self-tapping S[...]

42 Model 604H A C A B C B 7 41 13 28 42 21 4 34 1 13 35 7 39 1 1 32 2 20 17 6 23 18 17 32 20 15 24 19 25 14 8 13 22 29 3 5 10 11 38 7 37 9 12 12 12 30 31 30 11 43 44 45 46 47 48 49[...]

43 Model 604H Ref. No. Part No. Description 1 618-04137 Pulley-Spindle Assembly 2 683-0254 Deck Hanger Bracket Assembly 3 683-04103 Deck Assembly 4 710-0347 Hex Bolt 3/8-16 x 1.75 5 710-0514 Hex Bolt 3/8-16 x 1.0 6 710-0528 Hex Bolt 5/16-18 x 1.25 7 710-0599 TT Screw 1/4-20 x 0.5 8 710-0751 Hex Bolt 1/4-20 x 0.620 9 710-1260A LD Screw 5/16-18 x 0.7[...]

MANUF A CTURER’S LIMITED W ARRANTY FOR: The limited warranty set forth below is given by MTD LLC with respect to new merchandise purchased and used in the United States, its poss essions and territories. “MTD” warrants this product agai nst defects in material and workmanship for a period of two (2) years commen cing on the date of original p[...]