Craftsman 987.889 Lawn Mower User Manual


 
SERVICE AND ADJUSTMENTS
WHEELDRIVEBELT
ADJUSTMENT
The wheel drive belt requires an
adjustment if loss of drive belt ten-
sion (slippage) occurs. This is
most noticeable when more trac-
tion is required (such as going up
slopes).
ToTestWheel Traction
1. Park machine on a paved (con-
crete, etc.) surface with front edge
up against a sturdy wall, fence,
etc.
2. Put Gear Select Lever in No. 1
setting.
IMPORTANT: Do not park against
a painted or sided wall. Testing
the wheel drive system requires
machine to be forcibly pushed
against wall. Damage to paint or
siding could result.
3. With engine running, and ma-
chine placed firmly up against
wall, hold down Operator Pres-
ence Control and fully engage
wheel drive by squeezing Wheel
Drive Control until it contacts
handlebar.
4. Wheels should slip on paved
surface. If they do not, an adjust-
ment is required.
ToAdjustWheel Drive Belt
1. Stop engine, wait for all parts
to stop moving, and disconnect
spark plug wire.
2. Remove cotter pin (A, Figure
5-12A) from upper end of Wheel
Drive Control rod. Slide red out of
lever assembly.
3. Loosen jam nut (D, Figure
5-12).
Figure 5-12: Wheel drive belt adjustment.
4. Thread red (E, Figure 5-12) one
or two turns clockwise for more
tension or counterclockwise for
less tension.
5. Insert rod back into hole in
Wheel Drive Control lever and in-
stall cotter pin. Bend ends of cot-
ter pin to secure.
6. Retest wheel traction. Repeat
adjustment procedure, if neces-
sary. Most comfortable operation
will be obtained when the adjust-
ment allows the lever tojust make
contact with the handgrip as suffi-
cient wheel traction is achieved.
When adjustment is complete,
tighten jam nut (D) firmly against
block (B).
E
B
Figure 5-12.4
A
30"