Toro 22177TE Operator's Manual page 32

Problem
Engine runs rough
Lawn mower or engine
vibrates excessively
Uneven cutting pattern
Mower does not self-propel
Possible Cause
1. The wire is not
connected to the spark
plug.
2. The spark plug is pitted,
fouled, or the gap is
incorrect.
3. The throttle lever is not
in the Fast position.
4. The air lter element is
dirty and is restricting
the air ow.
1. The blade is bent or is
out of balance.
2. The blade mounting
nuts are loose.
3. The underside of the
mower housing contains
clippings and debris.
4. The engine mounting
bolts are loose.
1. All 4 wheels are not at
the same height.
2. The blade is dull.
3. You are mowing in the
same pattern repeatedly.
4. The underside of the
mower housing contains
clippings and debris.
1. The self-propel
drive cable is out
of adjustment or is
damaged.
2. There is debris under the
belt cover.
32
Corrective Action
1. Connect the wire to the
spark plug.
2. Check the spark plug
and adjust the gap if
necessary. Replace the
spark plug if it is pitted,
fouled, or cracked.
3. Move the throttle lever
to the Fast position.
4. Clean the air lter
pre-cleaner and/or
replace the paper air
lter.
1. Balance the blade. If the
blade is bent, replace it.
2. Tighten the blade
mounting nuts.
3. Clean under the mower
housing.
4. Tighten the engine
mounting bolts.
1. Place all 4 wheels at the
same height.
2. Sharpen and balance the
blade.
3. Change the mowing
pattern.
4. Clean under the mower
housing.
1. Adjust the self-propel
drive cable. Replace the
cable if necessary.
2. Clean the debris from
under the belt cover.