Problem
Loss of power
1. Cutting too much grass/too
2. Throttle in "Choke" position.
3. Build-up of grass, leaves and
4. Dirty air filter.
5. Low oil level/dirty oil.
6. Faulty spark plug.
7. Dirty fuel filter.
8. Stale or dirty fuel.
9. Water in fuel.
10. Spark plug wire loose.
11. Dirty engine air screen/fins.
12. Dirty/clogged muffler.
13. Loose or damaged wiring.
14. Carburetor out of adjustment.
15. Engine valves out of
Excessive vibration
1. Worn, bent or loose blade.
2. Bent blade mandrel.
3. Loose/damaged part(s).
Engine dies when
1. Reverse Operation System
engaging tractor
reverse gear
Engine continues to
1. Faulty operator-safety
run when operator
leaves seat with
attachment clutch
engaged
Poor cut - uneven
1. Worn, bent or loose blade.
2. Mower deck not level.
3. Buildup of grass, leaves, and
4. Bent blade mandrel.
5. Clogged mower deck vent holes
Probable cause
fast.
trash under mower.
adjustment.
(ROS) not ON while mower
or another attachment is
coupled.
presence control system.
trash under mower.
from buildup of grass, leaves,
and trash around mandrels.
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Solution
1. Set in "Higher Cut" position/reduce
speed.
2. Adjust throttle control.
3. Clean underside of mower housing.
4. Clean/replace air filter.
5. Check oil level/change oil.
6. Clean and re-gap or change spark
plug.
7. Replace fuel filter.
8. Drain fuel tank and refill with fresh
gasoline.
9. Drain fuel tank and carburetor, refill
tank with fresh gasoline and replace
fuel filter.
10. Connect and tighten spark plug wire.
11. Clean engine air screen / fins.
12. Clean/replace muffler.
13. Check all wiring.
14. See "To Adjust Carburetor" in Service
Adjustments section.
15. Contact TRAPP nearest authorized
service center.
1. Replace blade. Tighten blade bolt.
2. Contact TRAPP nearest authorized
service center.
3. Tighten loose part(s). Replace damaged
parts.
1. Turn ignition key to ROS "On"
position. See "Operation" section.
1. Check wiring, switches and
connections. If not corrected, contact
an authorized service center/
department.
1. Replace blade. Tighten blade bolt.
2. Level mower deck.
3. Clean underside of mower housing.
4. Contact TRAPP nearest authorized service
center.
5. Clean around mandrels to open vent
holes.