Troy-Bilt TUFFY CRT 640C Operator's Manual
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Troy-Bilt TUFFY CRT 640C Operator's Manual

Troy-Bilt TUFFY CRT 640C Operator's Manual

Rear-tine tiller models
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Operator's Manual
®
Rear-tine Tiller Models
640C--
Tuffy_ CRT
644A m Super Bronco
TM
CRT
Mode1644A Shown
IMPORTANT:
Read safety rules and instructions
carefully
before operating
equipment.
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 attester 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 through your nearest engine authorized service dealer or contact the service department,
P.O. Box 361131
Cleveland, Ohio 44136-0019.
Troy-Bilt LLC, P.O. BOX361131CLEVELAND,OHIO44136-0019
PRINTEDIN U.S.A.
FORMNO. 769-00585C
9/15/04

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Summary of Contents for Troy-Bilt TUFFY CRT 640C

  • 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 through your nearest engine authorized service dealer or contact the service department, Cleveland, Ohio 44136-0019. Troy-Bilt LLC, P.O. BOX361131CLEVELAND,OHIO44136-0019 PRINTEDIN U.S.A. 'w//////al&_Aiiiiiiiiiiiiir...

  • Page 2: Table Of Contents

    If you have difficulty assembling this product or have any questions regarding the controls, operation or maintenance of this unit, you can seek help from the experts. Choose from the options below: Visit troy-bilt.com will get the four options reproduced here. Click on the appropriate button and help is immediately available.

  • Page 3: Safety

    SECTION 1: SAFETY This machine meets voluntary safety stan- dard B71.8-1996, which is sponsored by the Outdoor Power Equipment Institute, Inc., and is published by the American National Standards Institute. WARNING The engine exhaust from this productcontains chemicals known to the State of California to cause cancer, birth defects or other reproduc- SafetyAlert Symbol in this manual and on the unit to alert...
  • Page 4 4.Exercise caution toavoid s lipping o rfall- ing. 5.If theunit s hould s tart t ovibrate a bnor- mally, stop theengine, disconnect the spark p lug wire andprevent itfrom touch- ingthespark p lug, and check i mmediately forthecause. Vibration isgenerally a warning oftrouble.
  • Page 5 Decals For your safety and the safety of others, vari- ous safety and operational decals are located on your unit (seeFigure 1-2). Keepthe decals clean and legible at all times. Contactyour local service dealer or thefactory for replacementsif any decals are damagedor missing.

  • Page 6: Assembly

    15 days after the unit has been delivered. Contact Troy-Bilt LLCif you need assis- tance in this matter. TOOLS / MATERIALSNEEDED (2) 1/2" open-end wrench* (2) 9/16"...
  • Page 7 Fig. 2.2: Attachhandlebar. drive pin (M) through the wheel shaft only (not through the wheel hub). Secure the wheel drive pin with the hairpin cotter (L), pushing the hairpin cotter in as far as it will go. The wheel should now spin freely (freewheel) on the wheel shaft.
  • Page 8 4. Testthe function ofthe reverseclutch by pulling out and releasingthe cable knob. The knob should return to its neutral posi- tion (resting against bracket). If it doesn't, contact your local dealer or Troy-Bilt LLC for technical assistance. Flat Side Fig. 2-8:/nsta//reverse cable bracketand reverse clutchcable.
  • Page 9 6: CHECK TRAHSMiSSiOH OIL LEVEL Thetransmission was filled with gear oil at the factory. However, y ou should checkthe gear oil level at this time to make certain it is correct. IMPORTANT:Donot operatethe tiller if the gear oil level is low. Doing so will result in severe damageto the transmission com- ponents.

  • Page 10: Features And Controls

    SECTION 3: FEATURES A NDCONTROLS operating your machine, ARNING: Before carefully readand understand all safety, controls and operating instructions in this Manual, the separateEngine Owner's Manual,and on the decals on the machine. Failureto follow these instructions can result in serious personal injury. INTRODUCTION This Section describes the location and function of the controls on your tiller.
  • Page 11 _--'i_ ,,_- Figure3-3: FREEWHEEL position. engine, be sure that both WARNING: Beforestarting wheels are in WHEEL DRIVE position. See WheelsDrive Pins for instructions, Engagingthe Forward Clutch Bail or ReverseClutch Control (if equipped) when the wheels are not in WHEEL DRIVEcould allow the tines to rapidly propel the tiller forward or backward.

  • Page 12: Operation

    SECTION 4: OPERATION operating your machine, ARNING: Before carefully readand understand all safety (Section 1), controls (Section 3) and operating instructions (Section 4) in this Manual, the separateEngine Owner's Manual,and on the decals on the machine. Failureto follow these instructions can result in serious personal injury.
  • Page 13 Stopping the Engineand Tiller 1. Tostop the wheels and tines, releasethe Forward Clutch Bail (all models) orthe Re- verse Clutch Control (Model 644A) -- whichever control is in use. 2. Tostop the engine, put the ignition switch and/or the throttle control lever in the "OFF"or "STOP"...
  • Page 14 Tilling Depths WAHNING: Before tilling, contact your telephone or utilities company and inquire if underground equipment or lines are usedon your property. Do not till near buried electric cables, telephone lines, pipes or hoses. • Whencultivating (breakingup surfacesoil around plants to destroyweeds,seeFig.4-9), a just the tines to dig only 1"to 2" deep.Using shallow tilling depths helps prevent injury to plants whose roots often grow close to the surface.
  • Page 15 TILLINGTIPS & TECHNIQUES (CON'T) Tilling On Slopes Read the followingrecommendationsbeforetilling on slopes: If you must gardenon a moderateslope,pleasefollow two very importantguidelines: 1. Till only on moderateslopes,neveron steepground wherefooting is difficult (review safe- ty rulesin Section 1: Safetyof this manual). 2. We recommendtilling up and down slopes ratherthan terracing. Tilling vertically on a slopeallows maximum plantingarea and also leavesroomfor cultivating.
  • Page 16 TerraceGardening(continued) • Tocreate a terrace, start at the top of the slopeand work down. Go back and forth acrossthe first row as shown in Fig.4-10. • Eachsucceedinglowerterrace is startedby walking belowthe terrace you're O preparing.Foraddedstability of thetiller, alwayskeepthe uphill wheel in thesoft, newlytilled soil.

  • Page 17: Maintenance

    SECTION 5: MAINTENANCE WARNING: Before inspecting, cleaning or servicing the machine, shut off engine, wait for all moving parts to come to a complete stop, disconnect spark plug wire and move wire away from spark plug. Remove ignition key on electric start models.
  • Page 18 moving parts to come to a complete stop, disconnect spark plug wire and move wire away from WARNING: spark plug. Failureto follow these instructions can result in serious personal injury or property damage. 4. Thegear oil level is correct if the gear oil is approximately halfway upthe side of the main drive shaft.
  • Page 19 moving parts to come to a complete stop, disconnect spark plug wire and move wire away from WARNING: spark plug. Failureto follow these instructions can result in serious personal injury or property damage. FORWARD Figure 5-3: Instafl tinesso that cutting edge of tines enter soft first when tiller movesforward. CHECKINGAND ADJUSTING FORWARDDRIVE BELT TENSION It is important to maintain correct tension...
  • Page 20 (see Check- ing and Adjusting Forward Drive Belt Ten- sion). If this fails to correct the problem, contact Troy-Bilt LLC or your authorized dealer for service advice. CHECKING ANDADJUSTING RE- VERSEDRIVEBELTTENSION...

  • Page 21: Off-Season Storage

    moving parts to come to a complete stop, disconnect spark plug wire and move wire away from WARNING: spark plug. Failureto follow these instructions can result in serious personal injury or property damage. 3. Cleanaround the oil dipstick or oil fill tube (whichever applies) to prevent dirt from falling into the crankcase.

  • Page 22: Troubleshooting

    moving parts to come to a complete stop, disconnect spark plug wire and move wire away from WARNING: spark plug. Failureto follow these instructions can result in serious personal injury or property damage. PROBLEM Enginedoes not start Spark plug wire disconnected Engine Throttle Control Lever incorrectly set.

  • Page 23: Partslist

    PartsList ;> (A) ForModel640C (B) ForModel644A PART NO. 715-0108 Spirol Pin 710-0597 Hex Hd. Screw, 1/4-20 x 1 710-0599 Screw, Self-Tapping,I/4-20 x 1/2 710-0874 HexHd. Screw,5/16-18 x 1-1/4 710-3008 HexHd. Screw,5/16-18 x .75 712-04064 HexLock Nut, Nylon, 1/4-20 712-04063 HexLock Nut, Nylon, 5/16-18 1916707 ChannelSupport Bracket 736-0119...
  • Page 24 MODELS 640C & 644A...
  • Page 25 PARTNO. 749-04193 Bumper(B) 710-0395 HexScrew,5/16-18x 2-1/4,Gr5(B) 726-0201 Nut,Speed, 5 /16-18(B) 712-04063 HexLock Nut,Nylon,5/16-18(B) (A)ForModel640C (B)ForModel644A PARTNO. DESCRIPTION 1916719 Cable Assembly, Reverse Clutch (B) 1916755 Upper Handlebar 747-04210 Bail, ForwardClutch 1918745 Cable Assembly, Forward Clutch 710-0599 Screw, Self-Tapping,I/4-20 x 1/2 710-3008 Screw, Hex, 5/16-18 x 3/4 712-3009 HexLock Nut, 5/16-18...
  • Page 26 MODELS 640C & 644A PARTNO. GW-9517 GW-1714 GW-50043 711-04110 GW-1224-1* GW-1224-2" GW-1224-3" GW-1224-4" GW-1325C * Useas required to obtain between .005" and .015" allowable end-play. PARTNO. GW-9727 710-04049 736-0119 1918377 1916641 GW-50032 721-04030 721-04031 619-04013 721-04036 736-3008* 718-04008 710-04048 710-3008 *Includedwith transmission whenpurchased as anassembly only.
  • Page 27 FRONT (A) ForModel640C (B) ForModel644A * Useas PARTNO. DESCRIPTION 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 711-04088 Wheel Shaft (A) 711-04092...
  • Page 28 MODELS 640C & 644A I11_ FORWARD...
  • Page 29 PART NO. 736-0159 FlatWasher, 5/16 714-0139 Key, 3/16"x 2" (A) 1108841 Key, 3/16" x 1-1/2" (B) 1916351 Pulley, Engine Drive 656-04023 Transmission Pulley (A) 656-04005 Transmission Pulley (B) 1916535 Pulley, ReverseIdler (B) 1916652 Guard, Belts/Pulleys 1916657 Forward Drive Belt 1916658 ReverseDrive Belt (B) 1916660 Belt Cover...
  • Page 30 MODELS 640C & 644A " FORWARD PARTNO. 710-0514 HexHd. Screw, 3/8-16 x 1, Grade5 GW-50049-02 Single Bolo Tine - Left Hand 712-3000 HexLock Nut, 3/8-16 710-0347 HexHd. Screw,3/8-16 x 1-3/4 GW-50049-01 Single Bolo Tine - Right Hand 1915075 Tine Holder (A) 1916747 Tine Holder (B} 1917486...
  • Page 31 NOTES...

  • Page 32: Warranty

    The provisions set forth in this warranty provide the sole and exclusive remedy arising from the sale. Troy-Bilt LLC shall not be liable for any incidental or consequential damage or expense of any kind, including but not limited to cost of equipment rental, loss of profits, or costs of hiring services to perform tasks normally performed by the equipment.

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Tuffy crt 644a

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