Troy-Bilt 630B-Tuffy, 634F-Bronco, 634B-Super Bronco Tiller User Manual


 
22 Section 5: Maintenance
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.
WARNING
TROUBLESHOOTING
Before performing any troubleshooting procedures, refer to the appropriate safety, operating or maintenance instructions in this
Manual or in the Engine Owners Manual. Contact your authorized engine service dealer for engine service. Contact your autho-
rized tiller 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 Owners 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. 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 Owners Manual).
2. Dirty air filter(s). 2. Clean or replace (see Engine Owners 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 Owners Manual).
Engine overheats. 1. Engine cooling system clogged. 1. Clean air cooling area (see Engine Owners Manual).
2. Carburetor out of adjustment. 2. See Engine Service Dealer.
3. Oil level is low. 3. Check oil level (see Engine Owners Manual).
Engine does not 1. Misadjusted throttle control or ignition switch. 1. See Engine Owners Manual or Engine Service Dealer.
shut off.
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 dont. 2. Bolt loose in transmission pulley. 2. Tighten bolt.
3. Internal transmission wear or damage. 3. Contact local Dealer or the Factory.
Wheels Turn, but 1. Tine holder mounting hardware missing. 1. Replace hardware.
Tines Dont. 2. Bolt loose in transmission pulley. 2. Tighten bolt.
3. Internal transmission wear or damage. 3. Contact local Dealer or the Factory.
Poor tilling 1. Worn tines. 1. See Bolo 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.
TILLER ATTACHMENTS
The attachments listed below are available for your tiller. The information is the most current at the time this manual was printed.
Contact your authorized dealer or the factory for current information.
BUMPER The tubular steel bumper surrounds the engine to protect the air cleaner, starter assembly and fuel tank from damage.
OEM-290-256 fits Tuffy, OEM-290-254 fit Bronco
FRAME WEIGHTS Solid steel weights attach to the sides of the tiller frame to provide added traction to the wheels.
OEM-290-265 fits Tuffy, Bronco & Super Bronco