Operators Manual Model Series 370 thru 389 Rotary Mowers IMPORTANT:READ SAFETY RULESAND INSTRUCTIONSCAREFULLY Warning: This unit is equipped _3FUSII_Covor ed Or g_a_s-_v_rgd CoMered, addllo_dle service abavo is required laws. Federal laws apply on federal de_ler or conlact PRINTED rN U.S.A. is used, DV law ISeclion land_. the service dep_rtmer_t, MTD PRODUCTS engine IB+ndfJrl(ess IE1_ _noit3_'s Iooal or Glat_ raw8 Ill any). if a spark arrestor In the SLat_ Of Oalifornl_.
SECTION 1: FINDING YOUR MODEL NUMBER This Operator's ManL_al is an important pert of your new walk behhld. It will help you assemble, prepare alqd maintain your walk behind. Please read and understand what it says, Before you start to prepare your walk behind for ds first use, please locate the model plate and copy the ihformaiien from It in this Operator's Manual. The Information on the model pla[e is very important if you need help from your dealer or the MTD CLlstomer support department.
SECTION 3: IMPORTANT ,ik WARNING: THIS SYMBOL SAFE OPERATION POINTS OUT PRACTICES 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 W[TH THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
• DO not engage the self-prabelled mechanism units so equipped while sthrLing engine, • The blade control handle attempt to bypass the safety device is a safety device Never its operagon. Doing so makes inoperative and may result in personal in{ury through contact with the rotating blade. The blade control handle must operate easily in both direntions and autornatically return Never sure operate of your the mower in wet grass.
• TO reduce life hazard, _eep mower free of grass, leaves, or other deeds build-up. Clean up oil or fuer spillage. Allow LgefQre storing. • Before c_rtain m_Jwer to cool at least make have stopped. Disconnect the 3park plug wire, and keep the wire away from the 8park plug to prevent • Chock • blade • and engine mounting bolt_ intervals for proper tlghtne._s. Also, inspect blade for damage (e.g,, bent, or worn).
Saope Gauge 6
SECTION 4: UNPACKING INSTRUCTIONS REMOVE UNIT FROM CARTON • See Figure 3, • Remove staples, break glue on top flaps, or cut tape at oarto_ end and peel along top flap to open carton. • Remove loose parts if Included with unit (i.e., owner's manual, etc.). • Cut along dotted lines and lay carton down flat. • Remove packing material Roll or slide unit out of carlon. Check carton thoroughly for loose parts.
SECTION 5: SET-UP INSTRUCTIONS This guide covers models 370 - 379 single speed self propelled mowers and 380 - 389 six speed self propelled mowers. Much of this guide pertains to both models. However, there are some areas where only one model is covered. Use only the information that is appropriate for your model. ITEMS REQUIRED FOR • PairefPliers(Notnocessary, ASSEMBLY butheipful) • Motel Oil • Fresh Gasoline IMPORTANT: This unit is shipped WITHOUI GASOLINE or OIL {ll the e!_gine.
Step 3. Step 4, Tighten wing nuts. Raise complete handle assembly until It clicks into place. Make sure not to kink the control cables. Handle Assembly Step 5. Pinch lower handle against bracket with pliers, mounting Step 6. Move hairpin clip from outer to inner hole on handle mounting bracket. Step 7, Attach control cables to handle ties found on the handle. NE== PINCH with pull 7 G ERE Step 8. Loosen the wing nut holding the rope guide to the upper handle. Step g.
SECTION 6: CONTROLS Recoil Starter , , _ five Clutch Control (If Equipped) Blade Conlrol Throttle Control "' HaNdl+__ All Models Models 380 - 389 Figure 5 BLADECONTROLHANDLE The blade control handle handle must he depressed engine and blade. is located on the upper handle of the mower, See Figure 5. The blade control in order to 8tart _nd operate the unit.
NOTE: Only move the shift lever when the engine engine off can cause damage to the mower. is running. Changing the shift lever setting with the CUTTING HEIGHT ADJUSTMENT LEVER The cutting height adiustment lever is located above the left rear wheel. To adjust the culting lever out and away from lhe mower and then move it forward or back for a new cutting height. height, pull the See Figure 6.
EACH TIME BEFORE YOU START YOUR MOWER • Altach spad_ plug w_re [o spark plug. Make cerLein the metal cap on the end of the spark plug wire is fastened securely over the metal tip on the spark plug. , Check for proper drive clutch operation usin9 the NEUTRAL ADJUSTMENT NEUTRAL ADJUSTMENT To pedorm the NEUTRAL TEST ADJUSTMENT • With the drive clutch control • Squeeze TEST. TEST answer the following released, push mower iorward questions. and pull it baekwerd.
BAGGING GRASS CLIPPINGS This mower can bag grass clippings. Step 1. Follow steps 1 and 2 to ready the mower for bagging. Remove mulching plug, if installed. Step 2, Hang grass bag on mower. HERE EMPTYING A FULL BAG OF GRASS Once he grass bag is full it w II need to be empt'ed, follow steps 3 and 4 to empty the grass bag. Lift bag up and away from mower. Dump the grass clippings. Step 4. MULCHING GRASS CLIPPINGS This mower can also mulch grass clippings. lu ching plug top and bottom v=ew.
SIDE DISCHARGING GRASS CLIPPINGS F ---_ iSide Discharge Top and Left V=ew. (Optional) ............ _:i'_p-l__" Lift r_aarflap, remove grass bag, or mulch plug if installed,. discharge chute. This side up Hang side Hang SECTION 8: ADJUSTMENTS and disconnecting spark plug time wire, make any adjustment to lawn mower without first stopping engine WARNING; Do not at any HANDLE HEIGHT ADJUSTMENT r Lower Handle _ Notch FIgiJre 7 Your mower follows.
THROTTLE CONTROL ADJUSTMENT (If Equipped) On Engine Figure 8 If the throttle control replaced, located on the left side of the upper handle requires adiLIstment or if It has been adjust the throtge control as follows. • Remove the screw shown in Figure 8. Remove the cable clamp from the cable. • Push the throttle contrM lever on the handle all the way forward as far as it will go, then back it off one "click". Make cerlain the thml_le control Iever remains in this position.
SECTION 9: LUBRICATION doing any kind Always of work on lawn mower. WARNING: stoptheengine and disconnect Blade Control spark plug wire before cleaning, lubbcatlng or Handle LUBI Wheels Engine BEE ENGINE MANUAL Figure 10 Blade Control: season Lubricate the pivot points on the blade control with light oil. See Figure 10 handle and the brake cable at beast once a The blade control must operate freely In both directions.
DECK The underside of the mower deck leaves, dirt or other matter. If this prevent proper mulching, dlecharge The deck may be cleaned by tilting plug wire Is drsconnected). CUTTING should be cleaned after each use to prevent a buildup of grass clippings, debds Is allowed to accumulate, it will invite rust and corrosion, and may or bagging.
SHIFT LEVER CABLE ADJUSTMENT (Models 380 - 389 Only) Periodic adjustment of the six speod shilt cable may be required due to normal wear on the cable. Adjustment is needed il all six speeds do not work The adjustable cable bracket is located on the left side of the mower, beside the engine. Follow steps 1 through 7 to adjust the shift lever. Step 1, Start engine. Step 2. Place speed control Step 3. Stop engine. Step 4, Disconnect in the sixth speed position. the spark plug wire and ground it.
DRIVE BELT REMOVAL AND REPLACEMENT (Model 370 Series) If you need to replace a worn or broken drive belt, follow steps 1 through22. Step 1, Disconnect the spark plug and ground it. Step 2, Drain the fuel tank. ' Step 3. Remove rear hub caps and wheels. Step 4. Remove eight phillips head screws, /7 (Behind Wheel Tip mower securely. _tep 5, back on its handle and block gtep 6. Remove blade and blade adapter. Step 7. Remove three hex head screws smag baffle. Step 8.
Step 14. Replace large baffle. Step 17. Step 15. Replace small baffle and three hex head screws holding It in place. Replace the eight phillips head screws that hold the large baffle in place, Step iS, Replace the rear wheels, rear wheel gears and hub caps. The gears need to be put on In the right way for the self propelled mechanism to work. Check the Installation of the gear by spinning the wheel, It should spin freely in one direction but not the other.
DRIVE BELT REMOVAL AND REPLACEMENT (Model 380 Series) you r_aed O replace a worn or broken drive belt, follow steps 1 though 30. Step 1. Disconnect the spark plug and ground it. Step g, Drain the fuel tank, Step 3, Remove rear hub caps and wheels. Step 4. Remove eight phillips head screws. (Behind W _ " _" 8 Step 5. Tip mower back on its handle end block securely. Step 6. Remove blade and blade adapter. Step 7. Remove three hex head screws holding small baffle.
Step 13. squeeze the 5elt togeiliei a_d-push belt ..... fon_vard Press the control arm inward towards the deck and the slot St_,p g--Pivot 1 tb_control arm down away from the pulley and belt, remove the six speed cable from Six-Speed Cable Slot Belt COlltroJ Control Arm Step 19. Lift off the lower pulley assembly and remove the old belt from around the crankshaft. Step 14, Place the new belt over the Iransmission pullBy.
Step 22. Pivol the control arm back to its original position and reilqstal! the six-speed cable into the slot. Step 21. Pinch belt together so that it is not in the pulley groove, and the lower pulley can be pushed towards the engine. Step 23. Check and make sure the bal_ is routed inside the pulley halves alld the belt guard pin. Lower Pulley Ha]f _ _'_" 0 _ 0 _ Guard Pin Step 24. Replace[arge Step 25. Replace small baffle and three hex head screws holding d in place. Step 26. baffle.
SECTION 11: OFF-SEASON The following STORAGE steps should be taken to prepare • Clean and lubricate mower • Refel to engine manual * Coat mower's • Store mower thoroughly lawn mower ='or storage. as described lot correct engifl@ ir_structlons. storage instructions. cutting blade with chassis in a dl_/, clean area in the lubrlcagon grease to prevent rusting.
Models 370 thru 389 Front Axle Assembly REF, NO. PART NO, & Height Adjuster DESCRIPTION 1 2 3 611-0060 710-1348 714-0104 4 732-0820 ASPan Sc_ 1/4-14x 50 Lg, Cotter Pin ,072 x 1,12 L0, Ext. Spdn 0 5 6 7 747-0920A 736-0!00 738-0102 Adj. Rod Bpr, Washer ShL Bolt .498 × 1.445 6 __jr= 0 See Wheel Axle Ass'y, Prt. WheelAss" t g_-Y and Hub Cap ___ 3/8-16 - Complete .......... Chart on Page 26 RE_ NO. 10 _5 27 15 18 PARTNO, DESCRIPTION ! 2 6 4 712_3626 7S0_0420 756 0656 736_36B4 Hx.
Models 370 thru 379 121 \ \ / 126 114 Size t OPTIONAL HUB CAPS Description Black (4-1/4" Dia.) Gray 14-1/4" Dia.} Gray (5-1/2" Dia,) Yellow (5-1/2" Dia.) 26 Part No.
Models 370 thru 379 REF. REF. NO. PART 2 3 647=0804 731=1630 710-0600 Control Handle Ass'y IDelLIxe) Bagle Oval C-Sunk Math - Screw' 4 5 796-0501 720-0279 spring Washer .66" ID Handle Knob 1/4-28 Thd, 6 7 646-0675 712-0324 Throttle Body* Hex L-Nul !/4-20 6 9 746-04390 746-0876 Upper Handle Throttle Lever* 12 746-0843 746-0846 Throttle Control Thr uttle Control Wire - 06"* Wire * 47"* Throttle Control Rope Guide Wire * 60"* 13 746-0641 710-1205 14 15 732-0700 720-0276 Wire-4T' L9.
Models 380 thru 389 36 / 131 114 B1 28
Models 380 thru 389 REF. NO. REF. PARTNO. Control 647-0004 PART NO. DESCRIPTION NO. Handle Ass'y CStdl 50 732-0807 Tore/on DESCRIPTION Spring 731-1639 Contror Handle Ass'y {Deluxe) Saffle 81 82 736-0586 710-0654A Wv.Wash.1 2 3 710-0805 Ova! C-Sunk 53 682-0037 21" Deck Ass'y w/rcon 4 736-0501 Spring 683-0075 21' Deck Ass'y w/o Icon 5 720-0279 Handle 66 731-1236 6 648-0875 Rear Brap 1777 Lg.
NO. PART NO_ REF. 1171 DESCRIPTION 111 1g-0841 C-SunkTapScr _!0x.75 112 732-gg27 Shilt Lever Sprirlg 113 16864 114 712-0414 6 Sp Rack Cable Bracket WBId Top [. 1/4-20 115 16855 _16 PART NO. g6 73 0905 DESCRIPTION Cow_ _c,_tToI Housing 731-0906 746-0711A Cable Mounting Cap S.E Cable 129 751-062g Control Lever Pawl Plate 130 746-0939 748-0381 Paw_ R.H, 131 754-0271 6 Speed Cable - 53" Lg. Bell 748-01888 Pawi L.H. (Not Shown) Shldt Scr.
Shroud Chart 751B281499 751B28!440 Pad NO. Dark Red _lack 731-1395A 731 No. 1396A Part 751B201443 Bright Red 731-1397A Red Er_
MANUFACTURER'S LIMITED WARRANTY FOR: ffAR#MACHINES For TWO YEARS from the date of retail purchase withil7 the United States of America, its possessions and territories, MTD PRODUCTS INC will, al its option, repab or replace, for the original purchaser, free of charge, any purl er parts found to be defective in material or workmanship.
