Husqvarna 917.27909 - Manual (Page 28)

TROUBLESHOOTING POINTS
PROBLEM CAUSE CORRECTION
Engine dies when
tractor is shifted
into reverse
1. Reverse operation system
(ROS) is not "ON" while
mower or other attachment
is engaged.
1. Turn ignition key to
ROS "ON" position.
See Operation section.
Engine continues to run
when operator leaves seat
with attachment clutch
engaged
1. Fauity operator-safety presence controi system. 1. Check wiring, switches and connections. If not
corrected, contact an authorized service center/
department.
Poor cut - uneven 1. Worn, bent or loose blade.
2. Mower deck not level.
3. Buildup of grass, leaves, and trash under mower.
4. Bent blade mandrel.
5. Clogged mower deck vent holes from buildup of
grass, leaves, and trash around mandrels.
1. Replace blade. Tighten blade bolt.
2. Level mower deck.
3. Clean underside of mower housing.
4. Replace blade mandrel.
5. Clean around mandrels to open vent holes.
Mower blades will not
rotate 1. Obstruction in clutch mechanism.
2. Worn/damaged mower drive belt.
3. Frozen idler pulley.
4. Frozen blade mandrel.
1. Remove obstruction,
2. Replace mower drive belt.
3. Replace idler pulley.
4. Replace blade mandrel.
Poor grass discharge 1. Engine speed too slow.
2. Travel speed too fast.
3. Wet grass.
4. Mower deck not level.
5. Low/uneven tire air pressure,
6. Worn, bent or loose blade.
7. Buildup of grass, leaves and trash under mower.
8. Mower drive belt worn.
9. Blades improperly installed.
10. Improper blades used.
11. Clogged mower deck vent holes from buildup of
grass, leaves, and trash around mandrels.
1. Place throttle control in “FAST” position.
2. Shift to slower speed.
3. Allow grass to dry before mowing.
4. Level mower deck.
5. Check tires for proper air pressure.
6. Replace/sharpen blade. Tighten blade bolt.
7. Clean underside of mower housing.
8. Replace mower drive belt.
9. Reinstall blades sharp edge down.
10. Replace with blades listed in this manual.
11. Clean around mandrels to open vent holes.
Headlight(s) not working
(if so equipped) 1. Light switch is “OFF”.
2. Bulb(s) or lamp(s) burned out.
3. Faulty light switch.
4. Loose or damaged wiring.
5. Blown fuse.
1. Turn light switch “ON”.
2. Replace bulb(s) or lamp(s).
3. Check/replace light switch.
4. Check wiring and connections.
5. Replace fuse.
Battery will not charge 1. Bad battery cell(s).
2. Poor cable connections.
3. Faulty regulator (if so equipped).
4. Fauity alternator.
1. Replace battery.
2. Check/clean all connections.
3. Replace regulator.
4. Replace alternator.
Loss of drive 1. Freewheel control in “disengaged” position.
2. Motion drive belt worn, damaged, or broken.
3. Air trapped in transmission during shipment
or servicing.
1. Place freewheel control in “engaged” position.
2. Replace motion drive belt.
3. Purge transmission.
Engine “backfires” when
turning engine “OFF”
1. Engine throttle control not set between half and
full speed (fast) position before stopping engine.
1. Move throttle control between half and full speed
(fast) position before stopping engine.
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