Troy-Bilt 644H manual

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 l[...]

TABLE OF CONTENTS Content Page Calling Customer Support .................................................... 2 Safety ................................................................... 3 Assembly ................................................................. 6 Features and Controls ....................................................... 10 Oper[...]

n Safety SPARK ARRESTER WARNING TO RESIDENTS OF CALIFORNIA AND SEVERAL OTHER STATES Under California law, and under the laws of several other states, you are not permitted to operate an internal combustion engine using hydrocarbon fuels on any forest, brush, hay, grain, or grass covered land; or land covered by any flammable agricultural crop witho[...]

Section 1: Safety 7. Take all possible precautions when leaving the machine unattended. Stop the engine. Disconnect spark plug wire and move it away from the spark plug. Be sure both wheels are in the Wheel Drive position. 8. Before cleaning, repairing, or inspect- ing, stop the engine and make certain all moving parts have stopped. Disconnect the [...]

Section 1: Safety Decals For your safety and the safety of others, various safety and operational decals are located on your unit (see Figure 1 below). Keepthe decals clean and legible at all times. Contact your local service dealer or the factory for replacements if any decals are damaged or missing. Refer to the separate parts catalog for decal l[...]

I] Assembly WARNING To prevent personal injury or property damage, do not start the engine until all assembly steps are complete and you have read and understand the safety and operating instruc- tions in this manual. Introduction Carefully follow these assembly steps to correctly prepare your tiller for use. It is recommended that you read this Se[...]

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. Using the middle holes in the handlebar support brackets (E and F, Fig. 2-2), loosely attach the[...]

Section 2: Assembly STEP4: Install Forward Clutch Cable 1. Place the 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. Carefully unwrap the forward clutch cable (the cable without a kn[...]

Section 2: Assembly 4. Insert the cable up through the slot in the cable bracket and position the threaded assembly as shown in Fig. 2-8. Make sure that the flat side of the threaded assembly is aligned with the flat side of the mounting hole. Slide the large hex nut (DD) up the cable and tighten it securely. 5. Use a cable tie (EE, Fig. 2-9) to fa[...]

n Features and Controls WARNING Before operating your machine, carefully read and understand all safety, controls and operating instructions in this Manual, the separate Engine Owner's Manual, and on the decals on the machine. Failure to follow these instructions can result in serious personal injury. Forward Reverse Clutch ClutchBail Control [...]

Section 3: Features andControls 4. FORWHEELDRIVE mode (Figure 3-2): Slide the wheel outward and align the holes in the wheel hub (D, Figure 3-2)) and the wheel shaft (B). Insert the wheel drive pin (A) through the wheel hub and the wheel shaft. Secure the wheel drive pin with the hairpin cotter (C) by pushing the hairpin cotter in as far as it will[...]

Section 3: Features and Controls Depth Regulator Lever This lever (G, Figure 3-5) controls the tilling depth of the tines. Pull the lever straight back and slide it up or down to engage the notched height settings. The highest notch (lever all the way down) raises the tines approximately 1- 1/2" off the ground. This "travel" setting [...]

n Operation WARNING Before operating your machine, carefully read and understand all safety (Section 1), controls (Section 3) and operating instructions (Section 4) in this Manual, in the separate Engine Owner's Manual, and on the decals on the machine. Failure to follow these instruc- tions can result in serious personal injury. INTRODUCTION [...]

Section 4: Operation Starting the Engine The following steps describe how to start and stop the engine. Do not attempt to engage tines or wheels until you have read all the operatinginstructions in this Section. Also review the safety rules in Section 1: "Safety" and the tiller and engine controls information in Section 3: "Features [...]

Section 4: Operation WARNING Do not push down on the handlebars to try to make the tiller till more deeply. This prevents the wheels from holding the tiller back and can allow the tines to rapidly propel the tiller backward toward the operator, which could result in loss of control, property damage, or personal injury. Let the tiller move at its ow[...]

Section 4: Operation Tilling Tips & Techniques Let the tiller do the work • While tilling, relax and let the wheels pull the tiller along while the tines do the digging. Walk on the side that is not yet finished (to avoid making foot- prints in the freshly tilled soil) and lightly, but securely grip the handlebar with just one hand. See Figur[...]

Section 4: Operation Tilling Tips & Techniques Clearingthe tines Dry grass, stringy stalks or tough vines may become tangled in the tines. Follow these procedures to help avoid tangling and to clean the tines, if necessary. • To reduce tangling, set the depth regulator to maximum depth. • While tilling, try swaying the handle- bars from sid[...]

Section 4: Operation LOADING AND UNLOADING THE TILLER WARNING Loading and unloading the tiller into or from a vehicle is potentially hazardous. We don't recommend doing so unless absolutely necessary, as this could result in person- al injury or properly damage. However, if you must load or unload the tiller, follow the guidelines given next. [...]

n 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. Failure to follow these instructions can result in serious personal injury or property damage. REQUIRED MAINTENANCE SCHEDULE Before Eve_ Eve[...]

Section 5: Maintenance WARNING Before inspecting, cleaning or servicing the unit, shut off engine, wait for all i_ parts to come to a complete stop, disconnect spark plug wire and move wire away from spark ..,Lol plug. Failure to follow these instructions can result in serious personal injury or MI property damage. TILLER LUBRICATION Proper lubrica[...]

Section 5: Maintenance WARNING Before inspecting, cleaning or servicing the unit, shut off engine, wait for all I" parts to come to a complete stop, disconnect spark plug wire and move wire away from spark ....t....[ plug. Failure to follow these instructions can result in serious personal injury or property damage. B. To Drain the Transmissio[...]

Section 5: Maintenance WARNING Before inspecting, cleaning or servicing the unit, shut off engine, wait for all t parts to come to a complete stop, disconnect spark plug wire and move wire away from spark ._L..I plug. Failure to foilow these instructions can resuit in serious personai injury or property damage. TINE OPERATOR POSITION C A jR:"_[...]

Section 5: Maintenance WARNING Before inspecting, cleaning or servicing the unit, shut off engine, wait for all t parts to come to a complete stop, disconnect spark plug wire and move wire away from spark ..L./ plug. Failure to follow these instructions can result in serious personal injury or MI property damage. from turning by gripping the upper [...]

Section 5: Maintenance WARNING Before inspecting, cleaning or servicing the unit, shut off engine, wait for all i" parts to come to a complete stop, disconnect spark plug wire and move wire away from spark ..£,.I plug. Failure to follow these instructions can result in serious personal injury or nl property damage. ENGINE OIL SERVICE Check th[...]

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 maintenance procedures. Contact your local authorized Engine Service Dealer for engine service. Contact your local authorized equipme[...]

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MODELS 644H & 645A REF NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 PART NO. DESCRIPTION 1185469 710-0597 710-0599 710-0874 1186331 712-0291 712-3004A 712-3009 736-0119 GW-55013-1 GW-55013-2 GW-55015 GW-55018 686-04029 GW-55088 GW-9384 GW-9534 710-04048 618-04046 1916569 1916570 710-3073 1916771 1107382 710-3025 1[...]

MODELS 644H & 645A 2 ! / 16 12 2O 17 22 1 ji! 18 / 25 7 20 / 14 J 18 23 28[...]

MODELS 644H & 645A REF NO. 1 1916719 2 1916755 3 1917479 4 1918745 5 710-0599 6 710-3008 7 712-3009 8 GW-55042 9 GW-55043 10 GW-55102 11 GW-55044 12 GW-9855 13 725-0157 14 736-3050 15 1916674 16 1916712 17 710-0106 18 710-0216 20 710-0805 21 712-0121 22 712-0291 23 712-3000 25 736-0119 PART NO. DESCRIPTION Cable Assembly, Reverse Clutch Upper H[...]

MODELS 644H & 645A 5 / / REF NO. 1 GW-9517 2 GW-1714 3 GW-50043 4 711-04110 5 GW-1224-1 * GW-1224-2" GW-1224-3" GW-1224-4" -- GW-13250 PART NO. DESCRIPTION Snap Ring Bearing, Tapered Roller (with race) Support Washer, Rear Drive Shaft(ORT) Shim,Rear Bearing Cap, .010" thick Shim, same as above, except .030" thick Shim, [...]

MODELS 644H & 645A FRONT 8 11 3 4 REF PART NO. NO. 1 GW-9512 2 1909950 3 GW-1166-1" GW-1166-2 * GW-1166-3 * GW-1166-4 * GW-1166-5 * GW-1086 711-04092 GW-9305 GW-1132-2 1904278 711-04078 GW-1104 1904279 4 5 6 7 8 9 10 11 7 4 3 DESCRIPTION Retainer, Snap Ring,"E" Type Retainer, Snap Ring Shim, 0,062" thick Shim, 0,030" th[...]

MODELS 644H & 645A 2 4 10 3 * included with transmission when purchased as an assembly only. Remove and discard when installing the transmission on tiller. REF NO. 1 2 3 4 5 6 7 PART NO. GW-9727 710-04049 736-0119 1918377 1916641 GW-50032 721-04030 DESCRIPTION Plug, Transmission OilFill HexHd.Flange Screw, 5/16-18 x 5/8,G r. 5 LockWasher, 5/16 [...]

Hold Tines With Cutting Edgeat the TOP of each tine facing TOWARDYou RIGHT-HAND TINE LEFT-HAND TINE f 10 WHEELSHAFT 8 / MODELS 644H & 645A FRONT/ =ORWARD 11 ENGINE ,,_DENOTES CUTTING EDGE OFTINE TINE SHAFT 1 5 5 REF NO. 1 2 3 4 5 6 7 PART NO. 710-3008 1817060 712-3009 710-3096 1817059 1916702 1916703 DESCRIPTION Hex Hd. Screw, 5/16-18 x 3/4, [...]

MODELS 644H & 645A I_i_ccLREVERSE UTCH CABLE 1_o j• 2 41 _3 , 25 4 FORWARD CLUTCH CABLE 38 24 84[...]

MODELS 644H & 645A (A) For Model 644H (B) For Model 645A REF PART NO. DESCRIPTION NO. 1 1107382 2 714-0139 1108841 3 1916531 619-04016 4 1916532 5 1916535 6 1916652 7 1916657 8 1916658 9 1916660 10 1916724 11 1916725 12 1916726 13 1916794 14 1916795 15 1917326 16 1917746 17 1918731 18 1918744 19 710-0117 20 710-0237 21 710-0376 22 710-04049 23 [...]

TROY-BILT TILLER LIFETIME LIMITED WARRANTY WHATPRODUCT ISCOVERED All Troy-Bilt branded rear tine walk-behind tillers with gear drive transmissions. 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 Troy-Bilt LLC will, at its option, repair or rep[...]