Illustrated Parts Manual

Transcription

1 Illustrated Parts Manual Transmatic Lawn Tractor Model Series 780 MTD LLC, P.O. BOX CLEVELAND, OHIO Printed In USA Form No (October 29, 2012)

2 To The Owner Thank You Thank you for purchasing this lawn tractor. It was carefully engineered to provide excellent performance when properly operated and maintained. All information in this manual is relative to the most recent product information available at the time of printing. Please be aware that this Illustrated Part s Manual may cover a range of product specifications for various models. Components Table of Contents Axle, Front... 8 Battery... 6 Head Lamps... 4 Mower Deck, 42-inch...14 Mower Deck, 46-inch...16 Pedal Controls...12 Dash Panel... 4 Drive System...12 Electrical Schematic Engine Accessories Engine Model 4P90JUB Fender...10 Frame... 6 listed and/or illustrated in this manual may not be applicable to all models. We reserve the right to change product specifications, designs and equipment without notice and without incurring obligation. Throughout this manual, all references to right (RH) and left (LH) are observed from the operating position. Fuel Tank... 4 Hood... 4 Deck Lift Handle/Linkage... 6 Muffler...18 PTO Lever... 6 Seat...10 Steering Wheel... 8 Switches, Interlock... 6 Throttle Control... 4 Transmission...12 Wheels, Front... 8 Wheels, Rear...12 Wiring Harness Schematic...19 Record Product Information To ease in ordering replacement parts, please locate the model plate on the equipment and record the information in the provided area to the right. You can locate the model plate by looking beneath the seat. Model Number Serial Number Painted Parts When ordering painted service parts, a four digit color suffix must be added to the part number (e.g. 783-XXXXX-0637). Please refer to the table below for current color codes: 0637 Black 0709 Dark Green (Bolens, Yard-Man) 0662 Oyster Gray (MTD Gold) 0638 Red (Yard Machines, Huskee, Troy-Bilt, MTD) 0691 Black Jack (MTD Gold, MasterCut) 0674 Yellow (Yard-Man) 0650 Metallic Red (White Outdoor) 0629 Silver Flake (MTD Platinum) Day Orange (Daedong) Flint Mica (Troy-Bilt XP) 2

3 Notes 3

4 A A Style Hood

5 5 Style Hood Ref. No. Part No. Description Screw, 5/16-18 x Hex Screw, 1/4-20 x Flangelock Nut, 1/ Screw, 5/16-18 x A Grill Lens Cable Tie Lamp Hood Pivot Bracket Hood A Shoulder Screw, 5/16-18 x.43 x B Left Support Pivot Bracket A Right Support Pivot Bracket Screw, 1/4-20 x Screw, 1/4-20 x A Screw, 5/16-18 x Flangelock Nut, 5/ Grill Gas Tank Support Bracket Screw, #10-16 x Choke Plug Tap Screw, 1/4-20, Hex Screw, 3/8-16 x Hex Screw, 5/16-18 x Bearing,.628 ID x Dash, Upper A Dash, Upper NRMC Ref. No. Part No. Description A Bracket, Steering Support Dash, Lower B Flange Spacer,.390 x.671 x Throttle/Choke Cable Speed Latch - No RMC Battery Assembly Rod Cable Tie Speed Control Rod Speed Latch Tab Gallon Fuel Tank Key, Assembly Lock Washer, 1/ Hose Vent, 3/16 EPA Hex Washer Screw, 1/4-20 x Flangelock Nut, 3/ B Shift Lever A Index Control Compr. Spring,.72 OD x Position Key Switch A Fuel Cap, Rollover Valve Rubber Grommet, 23 x Screw, 1/4-15 x C Dash Collar A Plenum G Harness, LT-5, NRMC,Dual If Equipped NOTE, Tractor features vary by model. NOT all parts listed above and pictured on the previous page are standard equipment. 5

6 A A A B B B C C Deck Lift Frame and PTO Lift

7 Frame and PTO Lift Ref. No. Part No. Description Support Bracket A Frame Assembly Screw Carriage, 1/4-20 x Screw 5/16-18 x Screw, 1/4-20 x Hex Screw, 5/16-18 x Flangelock Nut, 5/ Flangelock Nut, 1/ Hexlock Nut, 5/ Compression Spacer, 1.28 x Flat Washer,.28 x.74 x A Shoulder Spacer, x D Seat Frame Bracket Running Board Bracket Support Frame Bracket A Battery Bracket Hex Head Flange, 1/4-20 x Sems Nut, 1/ D 230 CCA Battery B Support Bracket A PTO Handle Assembly A Lift Assembly, Flangelock Nut, 3/ Bow-tie Cotter Pin A E Ring Handle Grip, 1/ Torsion Spring Shoulder Bolt, 3/8-16 x.625 x Hex Flange Bearing Ref. No. Part No. Description Deck Lift Handle Lift Rod C 42" Lift Arm, RH C 42" Lift Arm, LH Switch Interlock Lift Assembly, 46" A Screw, 5/16-18 x Handle Grip, 5/ Torsion Spring Handle, 46" Flat Washer,.385 x.62 x Shoulder Bolt, 3/8-16 x.500 x A 46" Lift Handle Frame Brace Bracket C Lift Deck Link A Hex Screw, 7/16-20 x Click Pin,.092 x A Handle Grip, 3/ A PTO Spring Extension V Solenoid Flat Washer,.450 x x A PTO Bearing E Deck Engage Cable A Engine Pulley, 3.39 x Battery Hold Down Rod Flat Washer,.406 x.875 x " Belt Keeper " Belt Keeper A Screw, 5/ x.625 NOTE, Tractor features vary by model. NOT all parts listed above and pictured on the previous page are standard equipment. 7

8 Front End Steering

9 Front End Steering Ref. No. Part No. Description Front Steering Gear Assembly Hex Screw, 3/8-16 x Hex Screw, 5/16-18 x 1.00, Lock Machine Screw, 5/16-18 x Hex Screw, 5/16-18 x Jam Nut, 7/ Jamlock Nut, 3/ Flangelock Nut, 5/ & 46" Front RH Axle A Ball Joint, 7/ Bell Washer,.340 x.872 x A 42 & 46" Front LH Axle Shoulder Bolt, 5/16-18 x.435 x A Steering Shaft, 5/8 x Flange Bearing, 5/ Valve, tubeless Air Steering Link Cap, 1.25 x Steering Block Spacer,.71 x.125 x A Tire, 15 x 6 x 6, 42 Deck Tire, 15 X 6 X 6, 46 Deck C Shoulder Spacer,.884 x.190 Ref. No. Part No. Description A Flat Washer,.781 x Cotter Pin, 5/32 x B Pivot Axle Screw, 5/16-18 x Flangelock Nut, 3/ Cotter Pin,.125 x Rim Asm, 6.0x4.5, 42 Deck Rim Asm, 6.0x4.5, 46 Deck Wheel Assembly, Wheel Assembly, Sprig Cap Cap, No Sprig Cap Steering Wheel A Steering Wheel A Hub Cap Shoulder Bolt, 3/8-16 x.500 x A Fixed Rod B Pivot Bar Bracket Push Cap, 3/ A Standard Axle Cap A Flange Bearing,.760 x.941 x 1.0 NOTE, Tractor features vary by model. NOT all parts listed above and pictured on the previous page are standard equipment. 9

10 Seat and Fender

11 Seat and Fender Ref. No. Part No. Description Screw, 1/4-20 x Screw, 5/16-18 x Screw Pan Torx Head, 1/4-20 x A Cup Holder Screw Carriage, 1/4-20 x D Fender - Red Lift Adjuster Bracket - Powder Black D Seat Mount Bracket - Powder Black Flangelock Nut, 5/ Extension Spring Flat Washer,.510x.750 x Bell Washer,.340 x.872 x Shoulder Screw, 5/16-18 x.437 x D Lift Seat Bracket D Pivot Seat Manual Adjust Bracket Hex Head Flange, 3/8-16 x Inner Seat Spring A Med. Back Seat, Black Foot Pad, LH Foot Pad, Abrasive, LH Foot Pad, RH Foot Pad, Abrasive, RH Ratchet Clip,.250 x Screw, 8-18 x Insulator Plate Outer Seat SPring Insulator Boss Plate NOTE, Tractor features vary by model. NOT all parts listed above and pictured on the previous page are standard equipment. 11

12 Transmission A A B 25 B

13 Transmission Ref. Part No. Description Transmission Drive Assembly Plate Switch Shaft Lever Assembly A Pedal Assembly, drive A Pedal Assembly, control Pedal Bracket Assembly Screw, 8-18: Screw, 5/16-18 x A Screw, 5/16-18 x Screw, 1/4-20 x Hex Screw, 3/8-16 x Screw, 3/8-16 x A Screw, 3/8-16 x Hex Screw, 5/16-18 x Screw, 1/4-20 x Hex Screw, 5/16-18 x Jam Nut, 7/ Hex Nut, 3/ Flangelock Nut, 5/ Spring Extension,.56 OD x Nut, 3/8-16, Centerlock Flange Nut, 9/ Tire, 20 x 8 x 8, 42 Deck Tire, 20 X 8 X 8, 46 Deck Cotter Pin INT-.125 DIA Bow-Tie Cotter Pin, Pulley Hub, 5/8 SPLINE Shift Knob Ball joint Cable tie Short Spring Switch Push Cap, 5/ Plate Insulator Nut Sleeve,.758 x.821 x Sleeve,.758 x.821 x Plug, 7/ Shift Plate Bearing Spring Extension,.38 OD x 3.25 LG Spring Extension,.70 OD X B Spring Extension,.97 Od X 6.18 Lg D Spring Extension,.59 OD x 4.00 LG Foot Pad, 4.0 Long Control Pad Lock Washer 3/8 Ref. Part No. Description Flat Washer,.406 x x Flat Washer,.375 X.738 X Switch Interlock Wheel, 20 x 8 x 8, 42 Deck Wheel, 20 x 8 x 8, 46 Deck B Shoulder Spacer, 1.00 X.38 X A Shoulder Screw,.43 x.29, 5/ A Stop Pedal Plate Flng Bearing.63 Id x.695 Od X Valve, tubeless Air Brake Rod Shift Rod, Idler Adjustment Rod Transmission Bypass Rod Spacer, T-Axle Spacer,.260 X.372 X Lg A Spacer,.260 X.375 X Lg V Belt, 5L 40.9 Poly A V Belt, 5L, Poly V Pulley 7.25 DIA SPUN Idler Pulley Idler Pulley B Pedal Support Bracket A Shaft Adjust Bracket Rim, 8.0 X 7.0 X.750, 46 Deck A Frame Pedal Bracket, Rh Center Idler Bracket A Idler Bracket A Pedal Support Bracket Idler Bracket Assembly Bracket Assembly A Screw, 5/16-18 x Hex Screw, 3/8-16 x Flangelock Nut, 3/ C Shoulder Spacer,.8840 X A Variable Speed Pulley Assembly Belt Keepr Assembly Bracket Assembly Screw, 5/16-24 x Screw, 1/4-20 x Bearing Cup Flat Washer,.330 X 1.25 X Ball Bearing, 17 x 40 x Spring Retainer Rod NOTE, Tractor features vary by model. NOT all parts listed above and pictured on the previous page are standard equipment. 13

14 42 Deck

15 42 Deck A Spindle Ass y, Pulley, 6.3 Dia B Bracket Ass y, Deck, Hanger LH Brake Ass y, Deck, 42/ Brake Ass y, Deck, A Deck Ass y, Offset, 42 W/O wheel Screw, Self-tapping, 5/16-18, Hex Screw, 3/8-16, 1.25, Gr5, Std Hex Screw, 5/16-18, 1.25, Gr5, Std Screw, Self-tapping, 1/4-20, Flat Washer,.406 x x Screw, Self-tapping, 1/4-20, Hex Screw, 3/8-16, 2.00, Gr5, Std Bolt, Carriage, 3/8-16, 0.75, Gr Nut, Push, 3/ Nut, Flange Lock, 5/16-18, Grf Nut, Flange Lock, 3/8-16, Grf A Nut, Flange, 5/ Nut, Lock, 1/ Deck Wash Plug Bow-Tie Cotter Pin A Chute Bracket Gear, Deck, Adjustment Spring, Extension,.62 Dia x Pulley Cap Spring, Torsion,.992 ID X 1.17 OD Bracket, Cable, Deck Engage Washer, Lock, 5/16, Regular Duty A Bearing, Ball,.787id x 1.85 Odx Washer, Flat,.385 X 1.0 X Hex Cap Screw, 5/16-18 x Cap,.290 x Washer, Flat,.385 x.870 x Spacer,.792 x x Bracket, Support, Stationary Idler Deck Lift Pivot Cup C Spacer, Shoulder,.8840 x Shoulder Spacer Bracket, Guard, Belt, 4.25 Pulley Blade, Cut, In-1, Econ Rod, Keepr, Belt 42 Idler A Rod, Lift, Deck, Frt, B Rod, Control, Brake Chut Assembly, 42 Deck A Deck Belt Cover, Washer, Flat,.760 Idx1.50 OD A Shift, Spindle, B Belt, V Type, A Sec X B Pulley, Idler, 4.25 Dia B Pin, Hinge, Dia.3125 x Pulley, Deck, 6.3 Dia Spring, Torsion,.44 I.D. X Pivot idler Bracket, 46 NOTE, Tractor features vary by model. NOT all parts listed above and pictured on the previous page are standard equipment. 15

16 46 Deck 46 Deck

17 46 Deck A Spindle Assembly, Pul 6.93 Dia B Bracket Assembly, Deck Hanger, LH Chute Deflector Assembly Brake Assembly, Deck, 42/ Brake Assembly, Deck, 46" A Deck Assembly, 46t, 2w Hex Screw, 3/8-16 x Screw, Self-tapping, 5/16-18, Hex Screw, 3/8-16, 1.00, Gr5, Std Hex Screw, 5/16-18, 1.25, Gr5, Std Screw, Self-tapping, 1/4-20, Screw, Self-tapping, 1/4-20, Washer, Flat,.474 x.879 x Screw, B, #10-16, Hex Screw, 3/8-16 x Bolt, Carriage, 3/8-16, 0.75, Gr Nut, Push, 3/ Nut, Flange Lock, 5/16-18, Nylon Nut, Flange Lock, 3/8-16, Nylon A Nut, Flange, 5/ Nut, Lock, 1/ Deck Wash Plug Bow-Tie Cotter Pin Bow-Tie Cotter Pin, Gear, Deck Adjustment Pivot Cup, Deck List Belt Cover, Universal Spring, Extension,.62 x Spring, Compression,.535 x Spring, Torsion,.992 I.D X 1.17 O.D Spring, Extension, 1.05 X Wheel, Deck, 5.0 Dia Ball A Bumper,.62 Dia X Washer, Lock, 5/16, Regular Duty Spacer,.792 X X LG Washer, Flat,.385 x.870 x A Shoulder Spacer,.43 x.29, 5/ Shoulder Spacer,.50 x Washer, Flat,.343 X.880 X Pulley Cap C Shoulder Spacer,.8840 X Shoulder Screw,.437 Dia. X Bolt, Shoulder,.496 x 2.50, 3/ Blade, Cut, 23.25" 2-In-1, Econ Rod, Keeper, Belt A Rod, Control, Brake 46" A Rod, Lift, Deck, Medium Rod, Keeper, Belt, 42s 46t Rod, Deck Release Hex Cap Screw, 5/16-18 x Cap,.290 x A Belt Guide A Spindle Shaft, 6.05 LG B Clamp, Casing Belt, V-Typ, A Sec B Pulley, Idler, 4.25 Dia B Hinge Pin Torsion Spring Bracket, Idler, Pivot, Bracket, Cable, Deck Engagement A Bracket, Guard, Belt, 4.25 Pulley Bracket, Idler, 46" Lh A Chute Bracket Deck Pulley, 6.93 DIA A Ball Bearing,.787ID X 1.85 ODX.551 NOTE, Tractor features vary by model. NOT all parts listed above and pictured on the previous page are standard equipment. 17

18 B&S Model Ref. No. Part No. Description Muffler Shield Assembly with Weld Screw, 8-18 x A Screw, 3/8-16 x Screw, 1/4-20 x A Socket Screw, 5/16-18 x Sems Nut, 1/ BS Exhaust Gasket, 10 HP Briggs Cable Tie Clamp Hose,.490 diameter Fuel Hose, Low Permeation Oil Drain Sleeve D Muffler, Single Inlet A Muffler Deflector Long NOTE, Tractor features vary by model. NOT all parts listed and pictured above are standard equipment. 18

19 MTD P Secure Head light wire to Hood Bracket A Screw, 3/8-16 x Cable Tie Clamp Hose,.490 diameter Oil Drain Sleeve Fuel Hose, Low Permeation 6 BS S Fuel Filter NOTE: Tractor features vary by model. NOT all parts listed and pictured above are standard equipment. 19

20 20 Wiring Harness Schematic G

21 Notes 21

22 4P90JUB Air Intake Air Filter Cover Assembly Air Filter Lock Nut Air Filter Cover Sponge Filter Air Filter Assembly Nut M Rubber Cap Manifold Manifold Gasket 22

23 4P90JUB Engine Shroud Debris Shield Nut Engine Shroud Spacer Starter / Shroud Stud M Flexible Clamp Hook Bolt Air Shield Self-Tapping Bolt

24 4P90JUB Crankcase Gasket Kit - External Gasket Kit - Complete Complete Engine

25 4P90JUB Crankcase Upper Crankshaft Seal Bolt M Breather Cover Plate Breather Gasket Umbrella Valve Mesh Screen Umbrella Valve Set Choke Linkage Governor Arm Shaft Governor Washer Governor Cotter Pin Governor Seal Throttle Linkage Throttle Linkage Spring Governor Arm Governor Arm Bolt Governor Arm Nut M Governor Spring Bolt M Bolt M Component Bracket/Separate Component Bracket Spacer Breather Hose Assembly Breather Hose Clamp Short Block Assembly (Incl.37,47-53,55-58,73-77,84,86,87-89, 91-93,98-104,112,113, , , 144,160,172,173, , ) Crankcase Cover Gasket Piston Ring Set Piston Pin Snap Ring Piston Piston Pin Connecting Rod Assembly Connecting Rod Bolt Gasket Kit - External (Incl.113,130,136,137,138,114,160) Gasket Kit - Complete (Incl.47,50,58,74,113,118,130, 136,137,138,144,160,172) Z4P90JUB Complete Engine 25

26 4P90JUB Cylinder Head Gasket Kit - External Gasket Kit - Complete Complete Engine

27 4P90JUB Cylinder Head Bolt M Cowl Valve Cover Bolt Valve Cover Valve Cover Ring Rocker Arm Assembly Jam Nut Fulcrum Nut Rocker Arm Rocker Arm Stud Push Rod Guide Exhaust Valve Adjuster Exhaust Valve Spring Retainer Valve Spring Intake Valve Seal Valve Spring Retainer Valve Kit Valve Kit Spark Plug/F6Rtc Bolt M Bolt /M Cylinder Head Kit (Incl.144,154,163,164,172) Cylinder Head Asm (Incl ,144, , , ) Air Valve Core Strainer Clip Second Air Valve Filter Element The Air Valve Bonnet Washer Screw M Cylinder Head Gasket Cylinder Head Dowel Push Rod Kit Tappet Camshaft Thrust Washer Camshaft Assembly Valve Cover Kit Gasket Kit - External (Incl.113,130,136,137,138,114,160) Gasket Kit - Complete (Incl.47,50,58,74,113,118,130, 136,137,138,144,160,172) Z4P90JUB Complete Engine 27

28 4P90JUB Crankshaft & Crankcase Cover

29 4P90JUB Crankshaft & Crankcase Cover Flexible Clamp Crankshaft Assembly Main Bearing Woodruff Key Dipstick Assembly Upper O-Ring Lower O-Ring Oil Fill Tube Assembly Bolt M Oil Drain Plug Regulator Dowel Pin Ball Spring Bolt Crankshaft Thrust Washer Balanceable Shaft Bearing Balanceable Shaft Assembly Balanceable Thrust Washer Oil Pump Assembly O-Ring Filter Filter Spring O-Ring Filter Cover Governor Gear/Shaft Assembly Bolt M Oil Drain Plug Washer Oil Filter Screw Joint Crankcase Cover Crankcase Cover Asm (Incl.87,88,89,100,101,102, 103,104,112,113,115,116) Bolt M Lower Crankshaft Seal Bolt M Oil Drain Plug Assembly 29

30 4P90JUB Carburetor Assembly I J K L M O P K N F B C E Q R S Carburetor Kit - Major BB T U V W X Y CC DD Z EE GG 30

31 4P90JUB Carburetor Assembly A Carburetor Assembly Fuel Hose Clamp Fuel Line Kit Plastic Support Clamp Carburetor Gasket Carburetor Insulator Carburetor Insulator Gasket Carb Stud Carburetor Kit - Major (Incl.130,136,138,F,G,S,T,U,V,W,X,Y,Z) A n/a Choke Shaft B n/a Choke Shaft Fiber O-Ring C n/a Choke Return Spring D n/a Flat Steel Washer E n/a Choke Plate F n/a Idle Jet Assembly G n/a Idle Jet O-Ring H n/a Sheetmetal Housing I n/a Throttle Shaft J n/a Throttle Plate K n/a Screw M3 5 L n/a Lock Washer M n/a Nylon/Plastic O-Ring N n/a Fiber O-Ring O n/a Idle Speed Adjusting Screw P n/a Idle Mixture Screw Q n/a Carburetor Body R n/a Fuel Inlet S n/a Float Pin T n/a Emulsion Tube U n/a Needle Valve V n/a Main Jet W n/a Needle Valve Spring X n/a Float Y n/a Fuel Bowl O-Ring Z n/a O-Ring AA Fuel Shut-off Solenoid Valve Kit (Incl.130,136,138,AA,G,H,Z) BB Fuel Bowl Kit (Incl.130,136,138,BB,CC,DD,EE,Y,Z) CC n/a Fuel Drain Plug Gasket DD n/a Fuel Drain Plug EE n/a Seat/Fuel Bowl Bolt GG n/a Washer HH n/a Screw M

32 4P90JUB Muffler Assembly Bolt M Nut M Muffler Assembly Exhaust Pipe Gasket Muff Stud M Muffler Stud Assembly Wire Mesh Shield Bolt M Spark Arrestor Spark Arrestor Screw 32

33 4P90JUB Starter Assembly Bolt M Starter Assembly Screw M Lock Washer Plain Washer Electrical Starter Front Cover Bearing Pinion/Clutch Assembly Gear Bearing Pinion Cover Bearing 6001Zz Bearing Starter Housing Assembly Screw Lock Washer Brush Assembly Electrical Starter Back Cover Bolt M Bolt M6 30 Assembly Insulation Washer Plain Washer Lock Washer Nut M Dowel Pin

34 4P90JUB Ignition & Electrical Bolt M Ignition Coil Assembly Flywheel Nut M Plate A Cooling Fan Flywheel Coil Assy.,Charge Bolt M Cowl 34

35 Notes 35

36 To order replacement parts or locate your nearest service dealer call a Customer Support at (800) or visit to find the nearest authorized dealer in your area. MTD LLC, P.O. BOX CLEVELAND, OHIO