ENGLISH
154
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Issue
Probable cause
Solution
The engine makes
noises but does not
start
1. Low or discharged battery.
1. Recharge or replace the battery.
2. Battery terminals corroded.
2. Clean the battery terminals.
3. Loose or damaged wiring.
3. Check the entire wiring.
4. Defective starting system or solenoid.
4.
Check/replace the starting system or
solenoid.
Power loss
1. Excessive or too fast lawn mowing.
1. Increase the cutting height/reduce the speed.
2. Accelerator in the position of drowning.
2. Adjust throttle control.
3. Build up lawn, leaves and dirt under the
mower.
3. Clean the bottom of the mower box.
4. Dirty air filter.
4. Clean/replace the air filter.
5. Low/dirty oil level.
5. Check the oil level/change the oil.
6. Defective spark plug or change it.
6. Clean and adjust the spark plug opening.
7. Dirty fuel filter.
7. Replace the fuel filter.
8. Old or dirty fuel.
8. Empty the tank and fill it with gasoline new
and clean.
9. Water in fuel.
9. Empty the tank and the carburetor, fill the
tank with fresh gasoline and replace the fuel
filter.
10. Loose wire on the spark plug.
10. Plug in and tighten the spark plug wire.
11. Cooling system/engine fins with dirt.
11. Clean the cooling system and engine fins.
12. Clogged/dirty muffler.
12. Clean / replace muffler.
13. Loose or damaged wiring.
13. Check the entire wiring.
14. Misaligned carburetor.
14. See “
Adjusting the carburetor
” in the
Repairs and Adjustments section.
15. Engine valves not adjusted.
15.
Seek professional services of the closest
TRAPP Authorized Service Center.
16. The freewheel control is in “unengaged”
position.
16. Set the freewheel control to the “unengaged”
position.
17. The motion trigger belt is worn, damaged
or broken.
17. Replace the motion trigger belt.
18.
Air pockets formed in transmission
transport or maintenance.
18. Purge the transmission.
19. Clean the waste from the steering plate.
(If equipped).
19.
Refer to the “
Cleaning
” item in the
Maintenance section of this manual.
20. Worn, damaged or broken drive belt.
20. Replace the drive belt.
Excessive vibration
1. Spent, bent, or loose blade.
1. Replace the blade. Tighten the blade bolt.
2. Curved blade chuck.
2.
Seek professional services of the closest
TRAPP Authorized servicing.
3. Loose or damaged parts.
3.
Tighten the loose parts and replace the
damaged parts.
4. Excessive motor rotation.
4. Check the engine speed.
Summary of Contents for 17.5 HP
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