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Troy-Bilt 645A Operator's Manual

Rear-tine tiller
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0 TRtlI BILT°
Operator's Manual
Rear-tine
Tiller Models
644H--Bronco
TM
645A--Bronco
TM
Model 644H Shown (bumper syles vary)
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 by contacting the service department at Troy-Bilt LLC, P.O. Box 361131 Cleveland, Ohio 44136-0019.
TROY-BILT
LLC, P.O. BOX 361131, CLEVELAND,
OH 44136-0019
PRINTED
IN USA
FROM NO. 769-00585A
(01/2003)

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Summary of Contents for Troy-Bilt 645A

  • Page 1 (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 by contacting the service department at Troy-Bilt LLC, P.O. Box 361131 Cleveland, Ohio 44136-0019. TROY-BILT LLC, P.O.
  • Page 2 For future reference, please copy the model number and the serial number of the equipment in the space below Copy Model Number Here Copy Serial Number Here OTRII BILT" TROY-BILT P. O. BOX 361131 www.troybilt.com CLEVELAND, OH44136 330-558-7220 •...
  • Page 3 Safety SPARKARRESTERWARNING TO RESIDENTSOF CALIFORNIAAND SEVERALOTHERSTATES Under California law, and under the laws of several other states, you are not permitted to operatean internal combustion engine using hydrocarbon fuels on any forest, brush, hay, grain, or grass covered land; or land covered by any flammable agricultural crop without an engine spark arrester in continuous effective working order.
  • Page 4 Section 1: Safety 26. To load or unload the tiller, see the 7. Take all possible precautions when e. Avoid using downwardpressure instructions in Section 4 of this Manual. on handlebars.If need be, use leavingthe machine unattended, Stop the slight upward pressureto keep the engine.
  • Page 5 Section 1: Safety Decals For your safety and the safety of others, Keepthe decals clean and legible at all Refer to the separate parts catalog for decal locations, part numbers and various safety and operational decals are times, Contact your local service dealer located on your unit (see Figure 1 below).
  • Page 6 Assembly NOTE:Be careful not to severely bend any Tools]MaterialsNeededfor WARNING of the control cables on the unit. Assembly To prevent personal injury or 3. Removeall unassembled partsand (1) 3/8" open-end wrench* property damage, do not start the separate hardware bag from the the engine until all assembly (2) 7/16"...
  • Page 7 Section 2: Assembly STEP 2: Attach Handlebar 1. Attach the two legs of the handlebar support (A, Fig. 2-2) loosely to the inner sides of the tiller frame using two 3/8"-16 x 3/4" hex hd. screws (B), 3/8" flat washers (C) and 3/8"-16 hex Iocknuts (D). 2.
  • Page 8 Section 2: Assembly STEP4: Install Forward Clutch Cable 1. Placethe forward clutch cable bracket (P, Fig. 2-4) on the handlebar support (A). Attach the cable bracket using a 1/4"-20 x 1-1/4" hex hd, screw (R, Fig. 2-4) and 1/4"-20 hex Iocknut (S). Tighten securely. 2.
  • Page 9 Section 2: Assembly STEP6: CheckLevelof 4. Insert the cable up through the slot in the cable bracket and position the Transmission GearOil threaded assembly as shown in Fig, 2-8, Make sure that the flat side of the The transmission was filled with gear oil threaded assembly is aligned with the fiat at the factory.
  • Page 10 FeaturesandControls WARNING Before operating your machine, carefully read and Forward Reverse Clutch understand all safety, controls ClutchBail Control and operating instructions in this Manual, the separate ulator Engine Owner's Manual, and on the decals on the machine. ight Failure follow these Adjustment instructions...
  • Page 11 Section 3: Features a ndControls ForwardClutchBail ReverseClutchControl 4. FORWHEELDRIVEmode (Figure 3-2): Slide the wheel outward and align the The Forward Clutch Bail (E, Figure 3-4) The ReverseClutch Control (F, Figure 3-4) holes in the wheel hub (D, Figure 3-2)) controls the engagement of forward drive controls the engagement of reverse drive and the wheel shaft (B).
  • Page 12 Section 3: Features andControls DepthRegulatorLever HandlebarHeightAdjustment Anti-ReverseStake Thislever (G, Figure 3-5) controls the The handlebar height is adjustable to Thisstake is located at the rear of the tilling depth of the tines, Pull the lever three different settings (see Figure 3-6). transmission, u nder the tine hood (see H, straight back and slide it up or down to As a general rule, adjust the handlebars...
  • Page 13 Operation ,Reverse ClutchControl WARNING Before operating your machine, carefully read and understand all safety (Section ForwardClutchBail 1), controls (Section 3) and operating instructions (Section 4) in this Manual, in the separate Engine Owner's ulator Lever Manual, and on the decals on the machine.
  • Page 14 Section 4: Operation in the separate EngineOwner's Manual. Starting the Engine Thiscreates an "uppercut" tine action which digs deeply, uprooting soil and 6. Put ignitionswitch and/or throttle The following steps describe how to start weeds. Don't overload the engine, but dig control lever on engine in "ON,"...
  • Page 15 Section 4: Operation WARNING WARNING Do not push down on the Before tilling, contact your handlebars to try to make the telephone or utilities company tiller till more deeply. This and inquire if underground prevents the wheels from equipment or lines are used in holding the tiller back and can your area.
  • Page 16 Section 4: Operation Tilling Tips & Techniques Let the tiller dothe work Avoidtilling soggy,wet soil In very hard ground it may take three or four overlapping passesto thor- • While tilling, relax and let thewheels Tilling wet soil often results in large, oughly pulverize the soil, (See Figure hard clumps of soil that can interfere pull the tiller along whilethe tines do...
  • Page 17 Section 4: Operation Tilling Tips & Techniques Clearingthe tines Tilling on slopes B. Tilling acrossslopeswithout using terraces: If you must garden on a moderate slope, Dry grass, stringy stalks or tough vines If previously described tilling methods pleasefollow two very important guide- may become tangled in the tines.
  • Page 18 Section 4: Operation LOADINGAND UNLOADINGTHE • Use sturdy ramps and manually (engine • When going down ramps, walk shut off) roll the tiller into and out of the TILLER backward with the tiller following you, vehicle. Two or more people are needed Keep alert for any obstacles behind you.
  • Page 19 Maintenance WARNING Before inspecting, REQUIRED MAINTENANCE SCHEDULE cleaning or servicing the machine, shut off engine, Before Every Every wait for all moving parts to PROCEDURE Each Noted Hours Hours come to a complete stop, disconnect spark plug wire Checkengine oil level And every 5 and move wire away from operating hours...
  • Page 20 Section 5: Maintenance WARNING Before inspecting,cleaning or servicing the unit, shut off engine, wait for all parts to come to a complete stop, disconnectspark plug wire and movewire away from spark ..,Lol plug. Failure to follow these instructions can result in serious personal injury or propertydamage.
  • Page 21 Section 5: Maintenance WARNING Before inspecting, cleaning or servicing the unit, shut off engine, wait for all I" parts to come to a completestop, disconnectspark plug wire and movewire away from spark ..t..[ plug. Failure to follow these instructions can result in serious personal injury or propertydamage.
  • Page 22 Section 5: Maintenance WARNING Before inspecting, cleaning or servicing the unit, shut off engine, wait for all parts to come to a completestop, disconnectspark plug wire and move wire away from spark ..£..I plug. Failure to foilow these instructions can resuit in serious personai injury or propertydamage.
  • Page 23 Section 5: Maintenance WARNING Before inspecting, cleaning or servicingthe unit, shut off engine, wait for all parts to cometo a complete stop, disconnectspark plug wire and move wire away from spark ..L.I plug. Failure to follow these instructions can result in serious personal injury or propertydamage.
  • Page 24 Section 5: Maintenance WARNING Before inspecting, cleaning or servicingthe unit, shut off engine, wait for all i" parts to cometo a complete stop, disconnectspark plug wire and move wire away from spark ._L,.I plug. Failure to follow these instructions can result in serious personal injury or propertydamage.
  • Page 25 Section 5: Maintenance TROUBLESHOOTING Before performing any corrections, refer to the appropriate information in this Manual, or in the Engine Owner's Manual, for the correct safety precautions and operating or maintenanceprocedures, Contact your local authorized Engine Service Dealerfor engine service. Contact your local authorized equipment dealer or the factory for all other service problems. PROBLEM POSSIBLE CAUSE CORRECTION...
  • Page 26 List...
  • Page 27 MODELS 644H & 645A PARTNO. DESCRIPTION 1185469 Spirol Pin 710-0597 HexHal.Screw, 1/4-20 x 1 710-0599 Screw, Self-Tapping,1/4-20 x 1/2 710-0874 HexHal.Screw, 5/16-18 x 1-1/4 1186331 HexHal.Screw, 5/16-18 x 1.0 712-0291 Hex Lock Nut, 1/4-20 712-3004A HexFlangeLock Nut, 5/16-18 712-3009 HexNut, 5/16-18 736-0119 Lock Washer, 5/16 GW-55013-1...
  • Page 28 MODELS 644H & 645A...
  • Page 29 MODELS 644H & 645A PARTNO. DESCRIPTION 1916719 CableAssembly, ReverseClutch 1916755 Upper Handlebar 1917479 Bail, ForwardClutch 1918745 CableAssembly, Forward Clutch 710-0599 Screw, Self-Tapping,1/4-20 x 1/2 710-3008 Screw, Hex, 5/16-18 x 3/4 712-3009 Hex Lock Nut, 5/16-18 GW-55042 Handlebar Support Lower Handlebar GW-55043 Panel GW-55102...
  • Page 30 MODELS 644H & 645A PARTNO. DESCRIPTION GW-9517 Snap Ring GW-1714 Bearing, Tapered Roller (with race) GW-50043 Support Washer, Rear 711-04110 Drive Shaft (CRT) GW-1224-1_ Shim, RearBearing Cap, .010"thick GW-1224-2_ Shim, same as above, except .030" thick GW-1224-3_ Shim, same as above, except .005" thick GW-1224-4_ Shim, same as above, except .062"...
  • Page 31 MODELS 644H & 645A FRONT DESCRIPTION PART NO. GW-9512 Retainer,Snap Ring, "E" Type 1909950 Retainer,Snap Ring GW-1166-1_ Shim, 0.062" thick GW-1166-2_ Shim, 0.030" thick GW-1166-3'_ Shim, 0.015" thick GW-1166-4'_ Shim, 0.010" thick GW-1166-5'_ Shim, 0.005" thick GW-1086 BronzeBushing 711-04092 Wheel Shaft (CRT) GW-9305 Key, Hi-Pro, 1/4 x 1 GW-1132-2...
  • Page 32 MODELS 644H & 645A * Included with transmission when purchasedas an assembly only. Removeand discard when installing the transmission on tiller. DESCRIPTION PARTNO. DESCRIPTION PART NO. 721-04031 GW-9727 Oil Seal,Wheel Shaft Plug, Transmission Oil Fill 619-04013 710-04049 Hex Hd. FlangeScrew, 5/16-18 x 5/8,Gr. 5 Transmission Housing Assembly 721-04036 736-0119...
  • Page 33 MODELS 644H & 645A Hold Tines With Cutting Edgeat the TOP of each tine facing TOWARDYou FRONT/ =ORWARD RIGHT-HAND T INE LEFT-HAND TINE WHEELSHAFT TINE SHAFT ENGINE OFTINE -_DENOTES CUTTING EDGE DESCRIPTION PARTNO. DESCRIPTION PART NO. 1917487 710-3008 Hex Hd. Screw, 5/16-18 x 3/4, Grade5 Wheel &...
  • Page 34 MODELS 644H & 645A I_i_ccLREVERSE UTCH CABLE FORWARD CLUTCH CABLE...
  • Page 35 MODELS 644H & 645A PARTNO. DESCRIPTION 1107382 FlatWasher, 5/16 1108841 Key, 3/16" x 1-1/2" 619-04016 Pulley, EngineDrive 1916532 Transmission Pulley 1916535 Pulley, ReverseIdler 1916652 Guard, Belts/Pulleys 1916657 Forward Drive Belt 1916658 ReverseDrive Belt 1916660 Belt Cover 1916724 ReverseReturn Spring Belt Guide 1916725 Forward Belt Guide 1916726...
  • Page 36 All Troy-Bilt branded rear tine walk-behind tillers with gear drive transmissions. ISCOVERED This warranty begins on the date of purchase and is warranted by Troy-Bilt LLC for the life of the tiller, to the odgina] purchaser only. WHAT IS COVERED...

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