Replacing Belts G9903 - Grizzly G9901 Owner's Manual

replacing belts g9903

Replacing Belts
G9903
Replace the belts when they are worn, cracked
or broken. If it is necessary to replace one of the
belts, you may want to replace both belts and the
brake shoes at the same time due to the time and
labor involved.
Call Grizzly Customer Service at (800) 523-4777
to order the following parts:
Part Description
Variable Speed Belt (G9903) ..............P9903727
Ribbed Timing Belt (G9903) ................P9903836
To replace the belts:
1.
With the mill running, change the variable
speed to the highest RPM.
2.
DISCONNECT THE MILL FROM POWER!
3.
Remove the three cap screws and the lower
pulley cover shown in Figure 78.
Figure 78. Lower pulley cover.
Model G9901/G9902/G9903 Milling Machine
4.
Part Number
Figure 79. Location of the two spring retaining
5.
6.
Thread two M6-1 x 60 bolts into the spring
retaining plate holes shown in Figure 79,
then tighten the bolts to compress the spring
slightly.
Note: Tighten the bolts evenly, in small incre-
ments, to compress the spring. For example,
turn one bolt two turns, then turn the other
bolt two turns.
Bolt Holes
Hex Nut
plate holes and hex nut.
Remove the spring retaining plate hex nut
(see Figure 79), then carefully remove the
two M6-1 x 60 bolts and the spring retaining
plate.
Remove the forward/reverse switch from the
side of the mill.
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