Rotating/Replacing Drum Bearings
65
Rotating/Replacing Drum Bearings
Replacing the permanently
Lubricated Drum Bearings
on the
SUPERMAX Sander
is a relatively straight-forward
procedure. Bearings should be replaced when they allow excessive play of the drum, make excessive noise, or
otherwise indicate failure.
Note: If
“Clicking Noises”
in the bearings are a problem, rotating may be a solution instead of replacement, as
follows
(See Figure 40)
:
Rotating Bearings:
Step 1.)
Loosen the Set Screws in the bearing collar. Leave the Allen Wrench in one of the Set Screws. Then
rotate the drum within the Bearing and tighten the Set Screws.
Step 2.)
If the clicking persists, or if the drum shaft is tight in the bearing and cannot rotate, then loosen the two
bolts holding the bearing and the flange for the bearing. Now repeat Step 1. After the drum is rotated within the
bearing, tighten the flanges first and then the set screws.
Note:
After tightening the rear bolt in the flange, loosen it approximately 1/4 turn, which allows the rear drum to
pivot. After the machine has run for a half hour, stop to check that the set screws and bearing bolts are tight. The
general procedure outlined below suggests replacing bearings on the left (outboard) side, one at a time, starting
with the rear drum of dual drum sanders, then moving to the front drum. Then, if needed, proceed to the right
(inboard) side, also working on the rear drum of dual drum sanders first, then the front drum.
Disassembly Procedure:
1.) To begin the procedure in all cases, disconnect power to sander.
2.) Remove the outer belt guard cover by removing the two 5/16" x 1/2" screw holding it in place, then the four 10-24
screws in the lower half. Slide the middle section back and the outer guard to the side.
3.) Loosen the pinch bolt of the motor support casting and raise the motor to loosen the V-belt.
4.)
Level the drums to each other
(See pages 17 and 19 in this manual)
. Then raise the conveyor bed until the
drum(s) rest on the conveyor bed. With this done, follow the steps below:
Bearing Replacement (Left Side):
If replacing all bearings, work first on the bearings on the left (or outboard) side of the sander first, one at a time,
Summary of Contents for 37 x 2
Page 2: ......
Page 17: ...General Information 17 Castings...
Page 18: ...Double Drum Sander 37 x 2 18 Supermax Specifications...
Page 19: ...General Information 19 Supermax Accessory Supply Check List...
Page 47: ...Mainteance 47...
Page 54: ...Double Drum Sander 37 x 2 54...
Page 56: ...Double Drum Sander 37 x 2 56 Drumhead Assembly Exploded View...
Page 57: ...Drumhead Parts List 57 Drumhead Parts List...
Page 58: ...Double Drum Sander 37 x 2 58...
Page 59: ...Conveyor Exploded View 59 Conveyor Exploded View...
Page 60: ...Double Drum Sander 37 x 2 60 Conveyor Parts List...
Page 61: ...Conveyor Parts List 61...
Page 62: ...Double Drum Sander 37 x 2 62 Exploded Diagrams...
Page 63: ...Parts Lists 63 Parts Lists...
Page 77: ...Disassembly Procedure 77...
Page 79: ...Warranties 79 Warranties Laguna Tools Warranty...
Page 80: ...Double Drum Sander 37 x 2 80 Modifications RMA Policy Laguna Tools Packaging RMA Procedure...
Page 81: ...Warranties 81...
