SERVICING YOUR SUPERMAX
29
REPLACING SANDING DRUMS
Changing drums on the SUPERMAX is a relatively
rare procedure, most often the result of external
damage or damage resulting from improper set-
tings for the stock being sanded.
To begin, disconnect power to sander. Remove
the sandpaper on the drums and level the sanding
drums to each other. Next, loosen the pinch bolt
of the motor support casting, loosen two screws in
lower belt guard, raise the motor, and retighten the
pinch bolt. With this done, follow the steps below
for dual drum sanders. The procedure is basically
the same for single drum sanders except there is
only one driven pulley and drum.
Disassembly Procedure
1. Disengage the outer belt guard cover by remov-
ing the four 10-32 screws and the two
5/16" x 1/2" bolts holding it in place. (Fig. 29).
Take the V-belt off driven pulleys.
2. Level the drums to each other (see pages 7 and
8 in this manual). Then raise the conveyor bed
until the drum(s) rest on the conveyor bed.
3. Remove the four 3/8" x 2 1/4" bolts from the
drum support casting on the right side (see Fig.
30). Remove on/off switch, bracket, and depth
gauge.
4. Remove the top two 3/8" x 2 1/4" bolts from
the drum support casting on the left (outboard)
side of the sander. Loosen the bottom two 3/8" x 2
1/4" bolts from the left drum support casting, but
do not remove them.
5. Lift the right (inboard) side of drums and place
a 2x6 on edge under the drums (Fig. 32). Loosen
and remove the V-belt pulleys from drum shafts.
Important: Make sure to note the location of the
pulleys. Also measure the distance from pulley
edge to the drum support casting to use as a refer-
ence when reinstalling pulleys so they will be prop-
erly aligned.
6. Loosen the set screws in the two V-belt pulleys
and remove the pulleys. Next, loosen the two set
screws in each of the four bearing collars (Fig. 33).
Now remove the sanding drum support brackets that
hold the bearings (Fig. 34). Remove the sanding
drums at this time and install the new drums. If the
bearings need replacing, replace them at this time
(see page 33).
Fig. 29. Removing outer belt guard. Fig. 30. Removing bolts from drum support casting.
To Next Page
Loading...
