Troubleshooting - Ariens 911086 - LM21, 911087 - LM21S Owner's/Operator's Manual

PROBLEM
Engine will
not start
Engine is
difficult to
restart
Cut is poor
Grass does
not disperse
evenly
Mower does
not bag
clippings
Wheel drive
does not
engage (Self-
Propelled
models).

TROUBLESHOOTING

PROBABLE CAUSE
1. Fuel tank empty or low.
2. Spark plug wire loose or off.
3. Engine/Blade control cable
detached, broken, or not
adjusted properly.
1. Mower clogged with grass.
1. Worn blade.
2. Too much grass is being
removed per cutting.
3. Grass is too wet.
4. Mowing speed is too fast.
1. Too much grass is being
removed per cutting.
2. Grass is too wet.
3. Mowing speed is too fast.
1. Grass bag is overfilled.
2. Mulching plug is installed.
1. Wheel drive control not
engaged.
2. Drive belt out of position.
3. Drive belt worn or damaged.
4. Rear wheels in different cutting
heights.
5. Idler spring detached.
6. Wheel drive control cable
detached or broken.
7. Friction disc not adjusted
properly or damaged.
8. Bearings damaged.
9. Debris in gear set.
CORRECTION
GB - 19
1. Check fuel level. Fill tank if
necessary.
2. Check connection.
3. Check cable. Adjust, repair
or replace as necessary.
1. Clear clippings from under
mower. (Allow the mower to
clear clippings before
shutting off engine.)
1. Check blade (See
Maintenance).
2. Raise cutting height.
3. Allow grass to dry.
4. Mow slower.
1. Raise cutting height.
2. Allow grass to dry.
3. Mow slower.
1. Empty grass bag and do not
allow it to overfill.
2. Remove mulching plug.
1. Engage wheel drive control.
2. Check drive belt. Adjust as
necessary (See Service and
Adjustments).
3. Replace belt (See Service
and Adjustments).
4. Adjust rear wheels to same
cutting height (See
Operation).
5. Attach idler spring to notch
on idler arm. Contact your
Dealer.
6. Check wheel drive control
cable. Adjust or replace as
needed. See Service and
Adjustments.
7. Contact your Dealer.
8. Contact your Dealer.
9. Contact your Dealer.