Instruction/ maintenance manual of the product 644H-Bronco Troy-Bilt
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Operator ’ s Manual 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).
2 TABLE OF CONTENTS FINDING MODEL NUMBER This Operator’s Ma nual is an important part of your new lawn tractor. It will help you assemble , prepare and maintain the unit for best performance.
3 T raining 1. Carefully read this Owner’s Manual, the separate Engine Owner’s Manual, and any other literature you may receive. Be thoroughly familiar with the controls and the proper use of the tiller and its engine. Know how to stop the unit and disengage the controls quickly.
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.
Section 1: Safety 5 Decals For your safety and the safety of others, various safety and operational decals are located on your unit (see Figure 1 below). Keep the decals clean and legible at all times. Contact your local service dealer or the factory for replacements if any decals are damaged or missing.
6 W ARNING 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.
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), two 3/8” flat washers (C) and 3/8"-16 hex locknuts (D).
8 Section 2: Assembly STEP 4: Install Forward Clutch Cable 1. Carefully unwrap the forward clutch cable (the cable without a knob attached to it) from its shipping position and slide the thin cable wire (T, Fig. 2-4) into the slot in the cable bracket.
9 Section 2: Assembly Fig. 2-8: Install reverse cable mounting bracket and the reverse clutch cable. 3. Use a cable tie (EE, Fig. 2-9) to fasten the reverse clutch cable to the left side handlebar. 4. Test the function of the reverse clutch cable by pulling the knob out and releasing it.
Wheel Drive Pins Each wheel is equipped with a Wheel Drive Pin (A, Figures 3-2 and 3-3) that secures the wheel to the wheel shaft (B). The wheels can be positioned in either a WHEEL DRIVE or a FREEWHEEL mode.
11 Section 3: Features and Controls 4. FOR WHEEL DRIVE 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).
12 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.
13 Figure 4-1 Section 4 Operation W ARNING 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.
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 operating instructions in this Section. Also review the safety rules in Section 1: “Safety” and the tiller and engine controls information in Section 3: “Features and Controls.
Section 4: Operation Let the tiller move at its own pace and do not push down on the handlebars to try to dig deeper– this takes weight off the wheels, cuts traction, and causes the tines to try and propel the tiller. 5. For reverse motion of the wheels and tines: (a) Look behind and exercise caution when operating in reverse.
16 Section 4: Operation T illing Tips & T echniques 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.
17 Section 4: Operation T illing Tips & T echniques Clearing the 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.
18 Section 4: Operation LOADING AND UNLOADING THE TILLER • Before loading or unloading, stop the engine, wait for all parts to stop moving, disconnect the spark plug wire and let the engine and muffler cool. • The tiller is too heavy and bulky to lift safely by one person.
19 Section 5 Maintenance REQUIRED MAINTENANCE SCHEDULE Before Every Every As PROCEDURE Each 10 30 Noted Use Hours Hours Check engine oil level • And every 5 operating hours Clean engine • ▲ Chec.
20 Section 5: Maintenance TILLER LUBRICA TION Proper lubrication of the tiller is an essential part of maintenance. After every 10 operating hours, oil or grease the lubrication points shown in Figures 5-1 and 5-1A and described below.
Section 5: Maintenance B. To Drain the Transmission Gear Oil: The transmission gear oil does not need to be changed unless it has been contam- inated with dirt, sand or metal particles. 1. Drain gasoline from the fuel tank or run the engine until the fuel tank is empty.
22 Clutch Bail all the way up to the bottom of the upper handlebars, you will need to loosen the belt tension. Also check the belt for cracks, cuts or frayed edges and replace it as soon as possible. • Check belt tension after the first two hours of initial operation (new belt).
Section 5: Maintenance W ARNING Before inspecting, cleaning or servicing the unit, shut off engine, wait for all 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.
24 Section 5: Maintenance W ARNING Before inspecting, cleaning or servicing the unit, shut off engine, wait for all 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.
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 th e correct safety precautions and operating or maintenance procedures. Contact your local authorized Engine Service Dealer for engine service.
TR O Y -BIL T TILLER LIFETIME LIMITED W ARRANTY WHAT PRODUCT All Troy-Bilt brand ed rear tine walk-behind tillers with gear drive transmissions. IS COVERED This warranty begins on the date of purchase and is warranted by Troy-Bilt LLC for the life of the tiller, to the origin al purchaser only.
An important point after buying a device Troy-Bilt 644H-Bronco (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Troy-Bilt 644H-Bronco yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Troy-Bilt 644H-Bronco - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Troy-Bilt 644H-Bronco you will learn all the available features of the product, as well as information on its operation. The information that you get Troy-Bilt 644H-Bronco will certainly help you make a decision on the purchase.
If you already are a holder of Troy-Bilt 644H-Bronco, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Troy-Bilt 644H-Bronco.
However, one of the most important roles played by the user manual is to help in solving problems with Troy-Bilt 644H-Bronco. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Troy-Bilt 644H-Bronco along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
