21in Heavy-Duty Walk-Behind Rotary Mower

Code 455ESerial No. 280000001 Manual Part No. 111-2129 Rev B

Parts Catalogue

FootnotesNot illustrated Not serviced separately

Part Description AbbreviationsPart descriptions in this catalog may include the following abbreviations.AR. . . . . . . . . . . . . . . as requiredASM. . . . . . . . . . . . . assemblyBBC. . . . . . . . . . . . . blade brake clutchCARR. . . . . . . . . . . . carriageDEG. . . . . . . . . . . . . degreesEXT. . . . . . . . . . . . . . externalFH. . . . . . . . . . . . . . . flat headGA. . . . . . . . . . . . . . .gaugeHD. . . . . . . . . . . . . . .heavy-dutyHF. . . . . . . . . . . . . . . hex flangeHH. . . . . . . . . . . . . . .hex headHHF. . . . . . . . . . . . . hex head flangeHHFTF. . . . . . . . . . . hex head flange thread formingHJ. . . . . . . . . . . . . . . hex jamHLH. . . . . . . . . . . . . .hex lag headHOC. . . . . . . . . . . . . height-of-cutHSBH. . . . . . . . . . . . hex socket button headHSFH. . . . . . . . . . . . hex socket flat headHSH. . . . . . . . . . . . . hex socket headHWH. . . . . . . . . . . . . hex washer headHWHTF. . . . . . . . . . . hex washer head thread

forming

HYD. . . . . . . . . . . . . hydraulicLH. . . . . . . . . . . . . . . left handNI. . . . . . . . . . . . . . . nylon insertNPTF. . . . . . . . . . . . national pipe thread finePFH. . . . . . . . . . . . . .phillips flat headPPH. . . . . . . . . . . . . phillips pan headPPHTF. . . . . . . . . . . phillips pan head thread

formingPRH. . . . . . . . . . . . . phillips round headPTH. . . . . . . . . . . . . .phillips truss headPTO. . . . . . . . . . . . . power-take-offRH. . . . . . . . . . . . . . . right handROPS. . . . . . . . . . . . roll-over protection systemSFH. . . . . . . . . . . . . .slotted fillister headSHH. . . . . . . . . . . . . slotted hex headSHWH. . . . . . . . . . . . slotted hex washer headSPH. . . . . . . . . . . . . slotted pan headSQH. . . . . . . . . . . . . square headSRH. . . . . . . . . . . . . slotted round headSTD. . . . . . . . . . . . . .standardTAP. . . . . . . . . . . . . . self tappingTTH. . . . . . . . . . . . . . torx truss head

ContentsDescription Page

. . . . . . 3Housing Assembly

. . . . . . 4Wheel and Tire Assembly No. 115-3849

. . . . . . 5Gear Case Assembly No. 110-2100

. . . . . . 6Blade, Brake and Clutch Assembly

. . . . . . 7Engine and Tank Assembly

. . . . . . 8Handle and Bail Assembly

. . . . . . 9Rear Suspension Assembly. . . . . . 10Wheel and Tire Assembly No. 115-3813. . . . . . 11Grass Bag Assembly No. 115-3815

Description Page. . . . . . 12Cylinder and Crankcase Assembly. . . . . . 13Piston and Crankshaft Assembly. . . . . . 14Valve and Camshaft Assembly. . . . . . 15Lubrication Equipment Assembly. . . . . . 16Cooling Equipment Assembly. . . . . . 17Electrical Equipment Assembly. . . . . . 18Control Equipment Assembly. . . . . . 19Carburetor Assembly. . . . . . 20Air Filter and Muffler Assembly. . . . . . 21Starter Assembly

111-2129 Rev B

Housing Assembly

2

Ref Part No. Qty. DescriptionDeck ASM1 115-3810 1Decal-Danger1:2 110-4977 1Decal-Danger1:3 110-4978 1Decal-Danger, Ce1:4 112-8760 1Nut-Lock2 54-9190 2Washer3 115-0972 2Nut-Lock, Cone4 32152-2 2Front Spring Arm ASM5 115-0980 2Spacer-Bearing6 75-5310 2Arm-Pivot, Front7 61-8300 2Spacer-Wheel8 52-2480 2Screw-Shoulder9 114-3468 2Wheel And Tire ASM10 115-3849 2Screw-HH11 323-12 2Knob-HOC12 110-0549 2Plate-Front HOC, LH13 115-0960 1Washer14 115-0956 2Plate-Rear HOC, RH15 115-0978-08 1Sheild-Trailing17 110-0509 1Rod-Shield18 33-3202 1Plate-Rear HOC, LH19 115-0977-08 1Gear Case ASM20 110-2100 1Door-Access, Rear21 107-4288 1Screw-HH22 32144-17 10

Ref Part No. Qty. DescriptionScrew-HWHTF24 49-2040 4Cover-Belt, Lower25 107-4297 1Cover-Belt, Upper26 107-4298 1Screw27 32144-32 3Nut-Clip28 611380 1Nut-Type J29 3290-171 2Washer-Flat32 3256-14 1Baffle-Chute, Floor33 115-0973 1Screw-HWHTF34 49-2040 4Guard-Engine35 110-4876 1Plate-Front HOC, RH43 115-0961 1Shield48 46-5400-03 1Screw-HWHTF49 49-2040 3Washer-Flat56 3256-3 2Tube-Spacer57 95-6063 1Decal-Hayter58 410087 1

3

111-2129 Rev B

Wheel and Tire Assembly No. 115-3849

A1

Ref Part No. Qty. DescriptionTire1 53-7740 1Wheel ASM2 1Hub And Bearing ASM2:1 1Hub-Bearing2:1:1 52-2410 1Spacer-Bearing2:1:2 52-2440 1Bearing-Wheel2:1:3 52-2450 2Plate-Wheel, Half2:2 115-3806 2Screw-HH2:3 321-2 4Nut-Lock, NI2:4 3296-42 4

4

111-2129 Rev B

Gear Case Assembly No. 110-2100

A2

Ref Part No. Qty. DescriptionCase-Gear, Lower2 74-1920 1Bracket-Guide, Belt3 49-8461-03 1Shaft-Output4 74-1890 1Ring-Retaining5 32151-57 1Washer-Thrust6 47-2910 1Input Shaft ASM7 13-5149 1Zerk7:1 302-63 1Pulley8 39-6740 1Upper Gearcase ASM9 13-9739 1Seal9:1 47-7260 1Bearing9:2 47-7270 2Nut-Lock10 3296-5 1Pinion-Bevel11 39-6660 1Key-Shift12 29-9330 2Collar-Shift13 29-9340 1Gear-38T14 42-4740 1Gear-42T15 29-9271 1Yoke-Shift16 60-8870 1Bushing-Yoke17 29-9570 1Seal-Oil18 47-6730 2Sleeve-Gear19 55-8010 1Sleeve20 39-6720 1Retainer-Key21 55-8020 1Pin-Groove22 3285-19 1

Ref Part No. Qty. DescriptionScrew-HWHTF24 49-2040 8Washer25 29-9690 1Gear26 46-3560 1Key-Woodruff27 3257-1 2Bearing-Roller28 48-2060 2Washer29 36-4770 3Bearing-Closed30 252-103 2Washer-Thrust31 36-4792 4Gear-18T32 39-6650 1Gear-14T33 46-3550 1Gear-12T34 46-3540 1Gear-Bevel35 74-1760 1Shaft-Intermediate36 53-7950 1Washer-Plain37 36-4780 3Key39 39-7842 1Arm-Actuating, Gear Case44 108-2648-03 1Washer-Flat45 3256-45 1

5

111-2129 Rev B

Blade, Brake and Clutch Assembly

3

Ref Part No. Qty. DescriptionRetainer-Belt4 108-3790 1Spacer-Pulley6 110-2142 1Disc8 108-3787 1Key-Woodruff9 3257-17 1Pulley-Driver10 56-6180 1Pulley-Driver, Upper11 107-4277-03 1Screw-HH12 104-5936 2Drum13 107-0754 1Bearing-Ball14 100-1048 3Spacer-Plate, BBC15 107-4293 2Shield-BBC16 110-0508 1Spacer-Blade17 107-4275 1Screw-HH18 3212-4 1Blade-21 Inch19 91-2256-03 1Screw-HWH20 32144-85 4Washer-Spring21 1-603610 2Nut-Lock22 54-9190 2Nut23 603773 2Brake Arm ASM24 107-7477 1Bolt-Shoulder25 107-0759 1Spacer-Bearing26 107-0758 1Washer27 605256 1Plate-Guide28 107-7471 1Screw-CARR29 3231-25 1

Ref Part No. Qty. DescriptionBelt-BBC30 110-1790 1Spring-Tension, Brake31 108-3792 1Plate-Mounting, BBC32 107-4280 1Bushing33 107-0797 1Washer-Flat34 3256-16 1Nut-Lock, NI35 3296-42 1Screw-HHF36 33104-020 3Screw-TAP37 32144-9 1Spacer-BBC38 107-4292 1Nut-Lock, NI39 3296-27 1Cup-Scalp, Anti40 80-2770 1

6

111-2129 Rev B

Engine and Tank Assembly

4

Ref Part No. Qty. DescriptionGas Cap ASM1 93-7198 1Tank-Fuel2 106-0625 1Screw-HWH4 46-8091 2Screw-Taptite5 95-1727 4Tank Mount ASM7 115-0954-03 1Hose-Fuel8 109-0296 1Valve-Fuel9 1-603770 1Clamp10 2412-98 4Hose-Fuel11 109-0650 1Screw-HWH12 104-2628 3Door-Discharge, Rear13 114-3445-03 1Rod-Door14 107-4286 1Spring-Torsion, Door15 110-5005 1Pushnut-Cap, Washer16 32112-1 2Engine ASM17 1Decal18 111-1918 1

7

111-2129 Rev B

Handle and Bail Assembly

5

Ref Part No. Qty. DescriptionHandle1 107-4162-03 1Control-Shift2 110-5026 1Latch-Lever, BBC3 115-0999-01 1Spacer-Flange4 110-0542 2Spring-Torsion, Latch5 115-0996 1Screw-HH6 321-10 2Anchor-Cable7 115-4453 1Screw-HH8 321-3 3Nut-Lock, NI9 3296-42 4Nut-Lock, NI10 3296-29 4Washer-Flat12 3256-1 2Screw-HH13 322-4 2Washer-Belleville14 3290-456 4Screw-HH15 322-7 2Screw-HH16 321-9 1Tie-Cable17 3290-378 4Washer18 115-0995 5Screw-HH19 321-13 2Screw-HH20 322-12 2Spring-Torsion21 115-0993 1Spacer-Support22 49-1631 2Spacer23 59-4310 1Cable-BBC24 107-4296 1Bracket-Cable, BBC25 115-4455 1

Ref Part No. Qty. DescriptionNut-Lock, NI26 3296-58 2Cable-Shift28 107-4295 1Traction Bail ASM29 115-4454-03 1Decal-Control30 110-2115 1BBC Bail ASM31 115-4452-03 1Anchor-Cable, Upper32 92-7729 1Screw-HWH33 32144-110 1Cable-Traction36 107-4294 1Throttle Cable ASM37 110-4923 1Control-Head, Throttle38 108-2645 1E-Ring39 32151-86 4Decal-Protection, Ear44 98-4387 1

8

111-2129 Rev B

Rear Suspension Assembly

7

Ref Part No. Qty. DescriptionV-Belt1 612652 1Ring-Retaining2 32151-36 2Washer3 74-1810 2Bushing-Flange4 115-0966 2Nut-Lock, Cone5 32152-2 2Washer-Thrust, Outer6 62-3830 2Gear-Pinion7 39-9160 2Cover-Wheel8 74-1640 2Wheel And Tire ASM9 115-3813 2Screw-HH10 323-13 2Spacer-Cover, Wheel11 74-1650 2Spring-Compression12 39-9650 2Key13 612066 2Ring-Retaining14 32151-68 4Washer-Thrust, Outer15 49-7700 2Pivot Arm ASM16 74-1851 2Seal-Oil16:1 47-6730 1Bearing-Roller16:2 48-2060 1Bearing-Wheel16:3 52-2450 1Zerk16:5 92-6316 1Rear Spring Arm ASM17 115-0979 2Knob-HOC18 110-0549 2Lever-Shift19 29-9560 1Pin-Coil20 32121-99 1

Ref Part No. Qty. DescriptionClamp-Cable21 62-3720 1Screw-HWHTF22 32144-70 1Grass Bag ASM23 115-3815 1

9

111-2129 Rev B

Wheel and Tire Assembly No. 115-3813

A3

Ref Part No. Qty. DescriptionTire1 53-7740 1Wheel ASM2 1Hub And Bearing ASM2:1 1Hub-Bearing2:1:1 52-2410 1Spacer-Bearing2:1:2 52-2440 1Bearing-Wheel2:1:3 52-2450 2Screw-HH2:2 321-2 4Nut-Lock, NI2:3 3296-42 4Plate-Wheel, Half2:4 115-3806 1Wheel Half And Gear ASM2:5 115-3848 1

10

111-2129 Rev B

Grass Bag Assembly No. 115-3815

A4

Ref Part No. Qty. DescriptionFrame ASM1 110-0510-03 1Grass Bag ASM2 115-3817 1

11

111-2129 Rev B

Cylinder and Crankcase Assembly

E2

Ref Part No. Qty. DescriptionGasket-Head1 108-2627 1Head-Cylinder2 108-2501 1Case-Rocker3 108-2502 1Gasket4 108-2503 1Gasket-Case, Rocker5 108-2504 1Gasket-Breather6 108-2505 1Cover-Complete7 108-2506 1Cover-Breather8 108-2507 1Valve-Breather9 108-2508 1Crankcase-Complete10 108-2509 1Pin11 108-2510 2Seal-Oil12 108-2511 2Tube13 108-2512 1Bolt-Flanged14 100-2804 4Bolt-Flanged15 100-2610 7Bolt-Flange16 108-2513 1Bolt-Flange17 108-2514 4Screw-Pan18 100-2763 5Pin-Dowel19 108-2515 2

12

111-2129 Rev B

Piston and Crankshaft Assembly

E3

Ref Part No. Qty. DescriptionPiston-Engine1 108-2516 1Pin-Piston2 108-2517 1Ring-Set, Piston3 108-2518 1Crankshaft-Comp (BBC)4 108-2626 1Connecting Rod ASM5 108-2520 1Ring-Snap6 108-2521 2Bolt-Flange7 108-2522 2

13

111-2129 Rev B

Valve and Camshaft Assembly

E4

Ref Part No. Qty. DescriptionValve-Intake1 108-2523 1Valve-Exhaust2 108-2524 1Retainer-Spring, Valve3 108-2525 2Collet4 95-9744 4Arm-Rocker5 108-2526 2Tappet6 108-2527 2Camshaft Valve ASM7 108-2528 1Weight8 108-2529 1Guide9 108-2530 1Rod-Push10 108-2531 2Arm11 108-2532 1Spring-Valve, Engine12 108-2533 2Screw13 108-2534 2Nut14 93-8534 2Pin15 108-2535 3Spring16 108-2536 1Bolt17 108-2537 2

14

111-2129 Rev B

Lubrication Equipment Assembly

E5

Ref Part No. Qty. DescriptionGasket1 100-2644 1Gasket2 108-2538 1Cap ASM3 108-2539 1Rotor-Pump4 108-2540 1Rotor-Pump5 108-2541 1Pipe6 108-2542 1Filter-Oil7 KW10761 1Filler8 108-2543 1Bolt9 108-2544 1Bolt10 108-2545 1Bolt11 108-2546 3Clamp12 108-2547 1O-Ring13 100-2690 1Plug- Oil Drain14 112-9991 1O-Ring15 100-2690 1

15

111-2129 Rev B

Cooling Equipment Assembly

E6

Ref Part No. Qty. DescriptionBracket-Fan1 108-2548 1Screen2 108-2549 1Cover3 108-2550 1Fan4 108-2551 1Housing-Fan5 108-2552 1Bolt-Flanged6 100-2804 2Label-Manual7 108-2624 1Label-Warning8 108-2625 1

16

111-2129 Rev B

Electrical Equipment Assembly

E7

Ref Part No. Qty. DescriptionCover1 100-2652 1Cover2 108-2553 1Insulator3 100-2653 1Terminal4 100-2796 1Coil Ignition ASM5 108-2554 1Flywheel6 108-2555 1Wire-Lead7 108-2556 1Key8 93-8571 1Spark Plug9 KW10676 1Bolt10 108-2544 2Bolt11 108-2558 1Bolt12 108-2559 1Bolt-Flanged13 95-9893 2Nut-Hex14 100-2668 1Washer-Plain15 100-2798 1

17

111-2129 Rev B

Control Equipment Assembly

E8

Ref Part No. Qty. DescriptionLever1 108-2560 1Lever2 108-2561 1Link-Choke3 108-2562 1Link-Throttle4 108-2563 1Arm-Pivot5 108-2564 1Spring-Govenor6 108-2565 1Control Panel ASM7 108-2566 1Sleeve8 108-2567 1Arm-Governor9 108-2568 1Governor ASM10 108-2569 1Bolt11 108-2570 1Nut12 108-2571 1Nut13 108-2572 1Washer14 100-2715 2Washer15 93-8612 1Clamp16 95-9849 1Collar17 100-2718 2Spring18 93-8588 1Spring-Throttle19 108-2573 1Spring20 108-2574 1Bolt21 95-9853 1Washer22 108-2575 1Bolt-Flanged23 100-2804 2Bolt-Flange24 108-2576 1

Ref Part No. Qty. DescriptionScrew-Pan25 108-2577 1Pin-Snap26 108-2578 1

18

111-2129 Rev B

Carburetor Assembly

E9

Ref Part No. Qty. DescriptionGasket1 108-2579 1Gasket2 108-2580 1Gasket3 108-2581 2Shaft4 108-2582 1Carburetor ASM5 108-2583 1Needle-Jet6 108-2584 1Screw-Pilot, Air7 108-2585 1Chamber-Float8 108-2586 1Valve-Throttle9 108-2587 1Shaft-Carburetor10 108-2588 1Shaft-Carburetor11 108-2589 1Insulator12 108-2590 1Float ASM13 108-2591 1Choke Valve ASM14 108-2592 1Limiter15 108-2593 1Nozzle-Main16 108-2594 1Screw17 108-2595 1Screw18 108-2596 1Jet-Main (#74)19 108-2597 1Spring20 108-2598 1Seal21 108-2599 2Spring22 108-2600 1Screw23 108-2601 1

19

111-2129 Rev B

Air Filter and Muffler Assembly

E10

Ref Part No. Qty. DescriptionCase-Filter, Air1 108-2602 1Element-Filter, Air2 108-2603 1Air Filter Element ASM3 108-2604 1Gasket-Pipe, Intake4 108-2605 1Gasket-Muffler5 108-2606 1Pipe-Intake6 108-2607 1Muffler7 108-2608 1Cover-Muffler8 108-2609 1Nut9 108-2610 2Bolt10 108-2611 1Nut11 108-2612 1Bolt-Stud12 100-2761 2Bolt13 100-2762 2O-Ring14 108-2613 1

20

111-2129 Rev B

Starter Assembly

E11

Ref Part No. Qty. DescriptionStarter-Recoil1 108-2614 1Bolt2 108-2615 4

21

NOTES

NOTES