Troy-Bilt 645A Super Bronco- Manual

Page 2 - Content; Copy the model number here:

2 TABLE OF CONTENTS FINDING MODEL NUMBER This Operator’s Manual is an important part of your new tiller. It will help you assemble, prepare and maintain the unit for best performance. Please read and understand what it says. Before you start assembling your new equipment, please locate the model pla...

Page 3 - Safety Alert Symbol; WARNING

3 Training 1. Carefully read this Own- er’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 en-gine. Know how to stop the unit and disen-gage the controls quickly. 2. Never allow c...

Page 4 - Maintenance and Storage

4 5 . If the unit should start to vibrate abnor- mally, stop the engine, disconnect the spark plug wire and prevent it from touch-ing the spark plug, and check immediately for the cause. Vibration is generally a warning of trouble. 6 . Stop the engine, disconnect the spark plug wire and prevent it f...

Page 5 - Decals; TO AVOID SERIOUS INJURY:; Operating Symbols

5 Decals For your safety and the safety of others, vari-ous safety and operational decals are located on your unit (see Figure 1-2). 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. Refer to the Pa...

Page 6 - STEP 1: UNPACKING INSTRUCTIONS; Loose Parts List; Description; STEP 2: ATTACH HANDLEBAR; to; to the outside; STEP 3: MOVE TILLER OFF CRATE

6 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 instructions in this manual. INTRODUCTION Carefully follow these assembly steps to correctly prepare your tiller for use. ...

Page 9 - FF

9 STEP 6: CHECK TRANSMISSION OIL LEVEL The transmission was filled with gear oil at the factory. However, you should check the gear oil level at this time to make certain it is correct. IMPORTANT: Do not operate the tiller if the gear oil level is low. Doing so will result in severe damage to the tr...

Page 10 - INTRODUCTION; ENGINE CONTROLS; FOR WHEEL DRIVE MODE; SECTION 3: FEATURES AND CONTROLS

10 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. INTRODUCTION This ...

Page 11 - FORWARD CLUTCH BAIL

11 WARNING: Before starting engine, be sure that both wheels are in WHEEL DRIVE position. See Wheels Drive Pins for instructions.Engaging the Forward Clutch Bail or Reverse Clutch Control (if equipped) when the wheels are not in WHEEL DRIVE could allow the tines to rapidly propel the tiller forward ...

Page 12 - Starting the Engine; SECTION 4: OPERATION

12 WARNING: Before operating your machine, carefully read and understand all safety (Section 1), controls (Section 3) and operating instructions (Section 4) in this Manual, the separate Engine Owner’s Manual, and on the decals on the machine. Failure to follow these instructions can result in seriou...

Page 13 - OPERATING THE TILLER; Do not till while in

13 Stopping the Engine and Tiller1. To stop the wheels and tines, release the Forward Clutch Bail (all models) or the Re-verse Clutch Control (Models 643B & 645A) — whichever control is in use. 2. To stop the engine, put the ignition switch and/or the throttle control lever in the “OFF” or “STOP...

Page 14 - TILLING TIPS & TECHNIQUES

14 Preparing Seedbeds Tilling wet soil often results in large, hardclumps of soil that can interfere with plant-ing. If time permits, wait a day or two afterheavy rains to allow the soil to dry beforetilling. Test soil by squeezing it into a ball. Ifit compresses too easily, it is too wet to till. A...

Page 15 - Tilling On Slopes; Read the following recommendations before tilling on slopes:; Tilling Up and Down Slopes (Vertical Tilling); Clearing the Tines

15 Tilling On Slopes Read the following recommendations before tilling on slopes: If you must garden on a moderate slope, please follow two very important guidelines: 1. Till only on moderate slopes, never on steep ground where footing is difficult (review safe-ty rules in Section 1: Safety of this ...

Page 17 - MAINTENANCE SCHEDULE; PROCEDURE; TILLER LUBRICATION; CHECK HARDWARE; CHECK FOR OIL LEAKS; SECTION 5: MAINTENANCE

17 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.Failure to follow these instructions can result in seri...

Page 18 - BOLO TINES

18 4. The gear oil level is correct if the gear oil is approximately halfway up the side of the main drive shaft. 5. If the gear oil level is low, add gear oil as described next. If the gear oil level is okay, securely replace the oil fill plug. IMPORTANT: Do not operate the tiller if the gear oil l...

Page 19 - Replacement Belt Information; FORWARD

19 CHECKING AND ADJUSTING FORWARD DRIVE BELT TENSION It is important to maintain correct tension on the forward drive belt. A loose belt will cause the tines and wheels to slow down — or stop completely — even though the en-gine is running at full speed. A too tight belt can result in unintentional ...

Page 20 - ENGINE CLEANING; A B

20 FORWARD CLUTCH BAIL ADJUSTMENT If the Forward Clutch Bail does not func-tion properly, first check that the forward drive belt is adjusted properly (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 fo...

Page 22 - TROUBLESHOOTING; PROBLEM

22 TROUBLESHOOTING PROBLEM POSSIBLE CAUSE CORRECTION Engine does not start 1. Spark plug wire disconnected. 1. Reconnect wire. 2. Engine Throttle Control Lever incorrectly set. 2. Put lever in START position. 3. Fuel tank empty. 3. Add fuel. 4. Choke control (if so equipped) in incorrect position. 4...

Page 23 - NOTES

Page 27 - FRONT

27 MODELS 643C, 643B & 645A * Use as required to obtain between .005” and .030” allowable end-play. REF NO. PART NO. DESCRIPTION 2 1909950 Retainer, Snap Ring 3 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...

Page 32 - TROY-BILT TILLER LIFETIME LIMITED WARRANTY

TROY-BILT TILLER LIFETIME LIMITED WARRANTY WHAT PRODUCT All Troy-Bilt branded 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 thetiller, to the original purchaser only. WHAT IS COVE...