-30-
Model W1855 (For Machines Mfd. Since 6/17)
SE
RV
IC
E
To.replace.and.tension.drive.belt,.do.these.steps:
1
. DISCONNECT MACHINE FROM POWER!
2
. Remove drive belt cover plate (see
Figure
30
).
3
. Loosen (3) belt housing screws shown in
Figure
30
to
relieve tension on drive belt.
4
. Remove old drive belt and place new drive belt
around pulleys.
5
. Insert screwdriver into tension hole, as shown in
Figure.31
, and pull up against belt housing to
tighten drive belt.
6
. While keeping tension on belt with screwdriver, use
other hand to tighten belt-housing screws from
Step.
3
.
7
. Test belt tension by squeezing belt between your fin-
gers. There should be no more than
1
⁄
4
" of deflection
in belt.
.
Note:
Too much tension in belt will cause increased
noise and may overload motor. However, if drive belt
is too loose, it may slip and cause excessive wear on
belt.
8
. Replace drive belt cover plate.
Replacing.Drive.Belt
Figure.30.
Example of drive belt housing
screws.
Drive Belt
Housing
Screws
Drive Belt
Housing
To ensure optimum power transmission, the belt must be
in good condition (free from cracks, fraying, and wear)
and properly tensioned. After the first 16 hours of belt
life, re-tension the belt, as it will stretch and seat during
this time.
Figure.31.
Prying housing up to tension
belt.
Tension
Hole