Cub Cadet ZT1 42 FAB Operation Manual - Page 31

This addresses minor service issues. To locate the nearest authorized service center,

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SERVICE AND MAINTENANCE Troubleshooting WARNING Before performing any type of maintenance/service, disengage all controls and stop the engine. Wait until all moving parts have come to a complete stop. Disconnect spark plug wire and ground it against the engine to prevent unintended starting. Always wear safety glasses during operation or while performing any adjustments or repairs. This section addresses minor service issues. To locate the nearest authorized service center consult the separate supplement sheet for contact information. PROBLEM Engine fails to start CAUSE 1. PTO/Blade Engage knob engaged. 2. Parking brake not engaged. 3. Spark plug wire disconnected. 4. Throttle control lever not in correct starting position. 5. Fuel tank empty or stale fuel. 6. Blocked fuel line or fuel filter. 7. Faulty spark plug. 8. Engine flooded. 9. Fuse(s) blown. REMEDY 1. Place knob in disengaged (OFF) position. 2. Engage parking brake. 3. Connect wire to spark plug. 4. Place Throttle lever to FAST position. 5. Fill tank with clean, fresh (less than 30 days old) gas. 6. Replace fuel line. See a qualified service dealer. Replace fuel filter. 7. Clean, adjust gap or replace plug. 8. Crank engine with throttle in FAST position. 9. Replace fuse. Engine runs erratically 1. Tractor running with Choke activated. 2. Spark plug wire loose. 3. Blocked fuel line or stale fuel. 4. Vent in gas cap plugged. 5. Water or dirt in fuel system. 6. Dirty air cleaner. 1. Check that the electric choke is working. See a qualified service dealer. 2. Connect and tighten spark plug wire. 3. Replace fuel line. See a qualified service dealer. Fill tank with clean, fresh gasoline and replace fuel filter. 4. Clear vent or replace cap if damaged. 5. Drain fuel tank. Refill with clean, fresh gasoline. 6. Clean or replace air cleaner paper element or clean foam pre-cleaner. Engine overheats 1. Engine oil level low. 2. Air flow restricted. 1. Fill engine with proper amount and type of oil. 2. Clean grass clippings and debris from around the engine's cooling fins and blower housing. Engine hesitates at high RPMs Engine idles poorly Excessive vibration Uneven cut 1. Spark plug gap set too close. 1. Fouled spark plug. 2. Dirty air cleaner. 1. Cutting blades loose or unbalanced. 2. Damaged, dull or bent cutting blade. 1. Deck not leveled properly. 2. Dull blade. 3. Uneven tire pressure. 1. Remove spark plug and adjust gap. 1. Replace spark plug and adjust gap. 2. Clean or replace air cleaner element and/or clean pre-cleaner. 1. Tighten blade and spindle. Balance blade. 2. Replace blade. 1. Perform side-to-side deck adjustment. 2. Sharpen or replace blade. 3. Check tire pressure in all four tires. 31

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31
SERVICE AND MAINTENANCE
Troubleshooting
WARNING
Before performing any type of maintenance/service, disengage all controls and stop the engine. Wait until all moving parts have
come to a complete stop. Disconnect spark plug wire and ground it against the engine to prevent unintended starting. Always
wear safety glasses during operation or while performing any adjustments or repairs.
This section addresses minor service issues. To locate the nearest authorized service center
consult the separate supplement sheet for contact information.
PROBLEM
CAUSE
REMEDY
Engine fails to start
1.
PTO/Blade Engage knob engaged.
2.
Parking brake not engaged.
3.
Spark plug wire disconnected.
4.
Throttle control lever not in correct
starting position.
5.
Fuel tank empty or stale fuel.
6.
Blocked fuel line or fuel filter.
7.
Faulty spark plug.
8. Engine flooded.
9.
Fuse(s) blown.
1.
Place knob in disengaged (OFF) position.
2. Engage parking brake.
3.
Connect wire to spark plug.
4.
Place Throttle lever to FAST position.
5.
Fill tank with clean, fresh (less than 30 days
old) gas.
6.
Replace fuel line. See a qualified service
dealer. Replace fuel filter.
7.
Clean, adjust gap or replace plug.
8.
Crank engine with throttle in FAST position.
9.
Replace fuse.
Engine runs erratically
1.
Tractor running with Choke activated.
2.
Spark plug wire loose.
3.
Blocked fuel line or stale fuel.
4.
Vent in gas cap plugged.
5.
Water or dirt in fuel system.
6. Dirty air cleaner.
1.
Check that the electric choke is working. See
a qualified service dealer.
2.
Connect and tighten spark plug wire.
3.
Replace fuel line. See a qualified service
dealer. Fill tank with clean, fresh gasoline and
replace fuel filter.
4.
Clear vent or replace cap if damaged.
5.
Drain fuel tank. Refill with clean,
fresh gasoline.
6.
Clean or replace air cleaner paper element or
clean foam pre-cleaner.
Engine overheats
1.
Engine oil level low.
2. Air flow restricted.
1.
Fill engine with proper amount and type
of oil.
2.
Clean grass clippings and debris from around
the engine’s cooling fins and blower housing.
Engine hesitates at
high RPMs
1.
Spark plug gap set too close.
1.
Remove spark plug and adjust gap.
Engine idles poorly
1.
Fouled spark plug.
2. Dirty air cleaner.
1.
Replace spark plug and adjust gap.
2.
Clean or replace air cleaner element and/or
clean pre-cleaner.
Excessive vibration
1.
Cutting blades loose or unbalanced.
2.
Damaged, dull or bent cutting blade.
1.
Tighten blade and spindle. Balance blade.
2. Replace blade.
Uneven cut
1.
Deck not leveled properly.
2. Dull blade.
3. Uneven tire pressure.
1.
Perform side-to-side deck adjustment.
2.
Sharpen or replace blade.
3.
Check tire pressure in all four tires.