MAINTENANCE & TROUBLESHOOTING
WARNING
: For your own safely, turn switch "OFF" and remove plug from power
source outlet before adjusting, maintaining, or lubricating your belt and disc sander.
WARNING
: To avoid electrocution or fire, any repair to electrical system should be
done by qualified service technicians. Unit must be reassembled exactly to factory
specifications.
LUBRICATION
The ball bearings in this machine are packed with grease at the factory. They require
no further lubrication. All other moving parts should be sprayed with a liquid lubricant
to ensure smooth operation.
INSTALLING/TENSIONING DRIVE BELT
1. Using a Phillips screwdriver, remove the flat head screw (A) Fig.14 located in the
middle of the drive belt cover (B).
2. Remove the cover (B) from the belt housing (C).
3. Loosen 3 screws (A) Fig.15 allowing the pulley to shift enough to position or remove
belt (B). Place new belt around motor pulley and drive pulley as shown if belt is ever
broken.
4. Slightly tighten the 3 screws (A) Fig.15. Adjust tension of belt by putting a flat head
screwdriver in the bracket slot hole (C), just below the bottom of the belt housing
(C) Fig.14. Pushing up on screwdriver will tighten the tension of the belt between
the pulleys.
5.Tighten the 3 screws (A) Fig.15 being careful not to disturb belt and pulley position.
6. Test belt tension by placing fingers on either side or belt and squeeze, refer to
Fig.16. There should be about a 1/4" give to the belt.
NOTE
: Excessive tightness on pulley belt may cause increased noise and will over
load motor. Excessive looseness on pulley belt may cause belt to fail prematurely.
7. Reinstall the belt cover (B) Fig.14 using flat head screw (A) and a Phillips screw
driver.
TROUBLESHOOTING
Figure 14
Figure 15
Figure 16
TROUBLE
Motor will not run.
Machine slows down when
sanding.
Belt runs off drums.
Wood burns while sanding.
Excessive noise.
PROBABLE CAUSE
1. Defective ON-OFF switch.
Defective switch cord.
Defective switch box.
2. Burned out motor.
1. Drive belt is too tight.
2. Applying too much pressure to
workpiece.
1. Not tracking properly.
1. Sanding disc or belt is glazed with
sap.
1. Drive belt is too tight.
SOLUTION
1. Replace defective parts before using sander again.
2. Any attempt to repair this motor may create a hazard un-
less repair is done by a qualified service technician.
1. Decrease belt tension.
2. Ease up on the pressure.
1. Adjust tracking.
1. Replace disc or belt.
1. Decrease belt tension.
