Troy-Bilt 645A-Bronco - Manual (Page 25)

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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 equipment dealer or the factory for all other service problems.
PROBLEM POSSIBLE CAUSE CORRECTION
Engine does 1. Spark plug wire disconnected. 1. Reconnect wire.
not start. 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. See Engine Owner’s Manual.
5. Stale gasoline. 5. Drain fuel and add fresh fuel.
6. Dirty air filter(s). 6. Clean or replace filter(s).
7. Defective or incorrectly gapped spark plug. 7. Inspect spark plug.
8. Carburetor out of adjustment. 8. See Engine Service Dealer.
9. Misadjusted throttle control cable. 9. See Engine Service Dealer
10.Dirt or water in fuel tank. 10. See Engine Service Dealer.
Engine runs poorly. 1. Defective or incorrectly gapped spark plug. 1. Inspect spark plug (see Engine Owner’s Manual).
2. Dirty air filter(s). 2. Clean or replace (see Engine Owner’s Manual).
3. Carburetor out of adjustment. 3. See Engine Service Dealer.
4. Stale gasoline. 4. Replace with fresh gasoline.
5. Dirt or water in fuel tank. 5. See Engine Service Dealer.
6. Engine cooling system clogged. 6. Clean air cooling system (see Engine Owner’s Manual).
Engine overheats. 1. Engine cooling system clogged. 1. Clean air cooling area (see Engine Owner’s Manual).
2. Carburetor out of adjustment. 2. See Engine Service Dealer.
3. Oil level is low. 3. Check oil level (see Engine Owner’s Manual).
Engine does not
shut off.
1. Misadjusted throttle control or ignition switch. 1. See Engine Owner’s Manual or Engine Service Dealer.
Wheels and Tines 1. Improper use of controls. 1. Review Sections 3 and 4.
will not turn. 2. Worn, broken, or misadjusted drive belt(s). 2. See “Checking Drive Belt Tension,” Section 5.
3. Internal transmission wear or damage. 3 Contact local dealer or the factory.
4. Bolt loose in transmission pulley. 4. Tighten bolt.
Tines turn, but 1. Wheel Drive Pins not in WHEEL DRIVE. 1. See “Wheel Drive Pins” in Section 3.
wheels don’t. 2. Internal transmission wear or damage. 2. Contact local Dealer or the Factory.
Wheels Turn, but 1. Tine holder mounting hardware missing. 1. Replace hardware.
Tines Don’t. 2. Internal transmission wear or damage. 2. Contact local Dealer or the Factory.
Poor tilling 1. Worn tines. 1. See “Tines” (Section 5).
performance. 2. Improper Depth Regulator setting. 2. See “Tilling Tips & Techniques,” Section 4.
3. Incorrect throttle setting. 3. See Section 4.
4. Forward Drive Belt slipping. 4. See “Checking Forward Drive Belt Tension,” Section 5.