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18 Service
MAN0253 (Rev. 3/10/2007)
BELT SERVICE
Use care when installing or removing belt from
spring-loaded idler. Springs store energy when
extended and, if released suddenly, can cause per-
sonal injury.
Belt Adjustment (Figure 10)
A
Figure 10. Belt Adjustment
NOTE: The belt tension is set at the factory, but may
need adjustment after the first hour of initial use. Peri-
odically, the belt should be checked for proper tension
following the procedure below.
1. Loosen lock nut.
2. Tighten draw nut until spring has stretched approx-
imately 8.8" as shown in Figure 10. Tighten lock
nut.
Belt Replacement
NOTE: Major causes of belt failure are improper instal-
lation and tension. Before installing a new belt, check
spindle shafts and bearings for excessive end play and
wear by moving side to side and up and down. Be sure
shafts and bearings turn smoothly and freely.
Make sure idler pulleys are still aligned with spindle
pulleys.
Check pulley grooves for cleanliness and wear. If
grooves require cleaning, use a cloth moistened with a
non-flammable, non-toxic, degreasing agent or com-
mercial detergent and water.
When installing belts, follow the belt routing shown in
Figure 11.
Avoid excessive force during installation. Do not use
tools to pry belt on or roll belt over pulleys. This can
cause hidden damage and premature belt failure.
Figure 11. Belt Routing
CAUTION