Troubleshooting – Troy-Bilt TUFFY 634BM User Manual
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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.
PROBLEM
TROUBLESHOOTING
POSSIBLE CAUSE..........................
CORRECTION
Engine does not start
1.
Spark plug wire disconnected, .....................
2.
Engine Throttle Control Lever incorrectly set.
3.
Fuel tank empty. ;
..... ;
4.
Choke control (if so equipped) in incorrect position
5.
Siaie gasoline.
0.
: Dirty air fiiter.
7.
Defective or incorrectly gapped spark plug.
8
.
Carburetor out of adjustment. L L
9.
Misadjusted throttle control.
10. Dirt or water in fuel tank.
Reconnect wire.
Put lever in START position.
Add fuel. : : ........................' :
See Engine Owner’s Manuai.
Drain fuel and add fresh fuel.
Clean or replace filter,
Inspect spark plug.
See Engine Service Dealer.
See Engine Service Dealer
See Engine Service Deaier.
Engine runs poorly.
Defective or incorrectly gapped spark plug.
Dirty air filter(s). L :)
Carburetor out of adjustment.
Stale gasoline. L L
Dirt or water in fuel tank. L
Engine cooling system clogged.
1.
Inspect spark plug (see Engine Owner’s Manual).
2.
Clean or replace (see Engine Owner’s Manuai).
3.
See Engine Service Deaier.
4.
Replace with fresh gasoline.
5. : See Engine Service Dealer.
6
.
Clean air cooling system (see Engine Owner’s Manuai).
Engine overheats.
1.
Engine cooling system clogged.
2.
Carburetor out of adjustment. :
3.
Oil level is low. ................................
1.
Clean air cooling area (see Engine Owner’s Manual).
2.
See Engine Service Dealer. ''
) ::
3.
Check oil level (see Engine Owner’s Manuai). ...................
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 will not turn
Improper use of controls.
,
Worn, broken, or misadjusted drive beit(s).
Internal transmission wear or damage.
4. Bolt loose in transmission pulley.
1.
Review Sections 3 and 4.
I) )
2.
See “Checking Drive Belt Tension," Section
6
.
3.
Contact local dealer or the factory. : : : : : : : : :
4.
Tighten bolt. .............................................................
Tines turn, but wheeis don’t.
1
.
2
.
3. Internal transmission wear or damage.
Wheel Drive Pins not In WHEEL DRIVE.
Bolt loose in transmission pulley..............
1.
See “Wheel Drive Pins” in Section 3.
2.
Tighten bolt.
3.
Contact local Dealer or the Factory.
Wheeis Turn, hut Tines Don’t.
Tine holder mounting hardware missing.
Bolt loose In transmission pulley,
internal transmission wear or damage.
1.
Replace hardware. 7
7 7
2.
Tighten bolt. \
7
7
7
3.
Contact local Dealer or the Factory,
Poor tilling performance.
Worn lines.
.........
improper Depth Regulator setting,
incorrect throttle setting, : :
Forward Drive Belt slipping, ..............
Section 4.
See “Boio Tines” (Section 5).
See “Tilling Tips & Techniques,”
See Section 4.
7
7
See “Checking Forward Drive Belt Tension," Section 5.
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