Brake Service |
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Tools Needed: | Qty |
14mm Open End Wrench | 1 |
Small Snap Ring Pliers | 1 |
6mm Hex Wrench | 1 |
#2 Phillips Screwdriver | 1 |
Eventually the brake pads will wear out. Checking and replacing these is a simple project that can be done in the shop, with the exception of having the rotor resurfaced on a lathe.
To check the brake pads:
1.DISCONNECT THE SANDER FROM THE POWER SOURCE AND REMOVE AIR PRESSURE COMPLETELY!
2.Remove the four screws that secure the access panel on the
3.The brake caliper is located underneath the rotor in Figure 25, which is attached to the motor arbor.
Caliper
Figure 25. Disc brake.
4.The brake pads consist of a metal plate with a composite pad. With a fine ruler, measure the thickness of the composite pad only. If one of the pads is below 1⁄8" (approx. 3mm), replace both.
To replace the brake pads:
1.DISCONNECT THE SANDER FROM THE POWER SOURCE AND REMOVE AIR PRESSURE COMPLETELY!
2.Remove the nuts from the two mounting bolts and the two snap rings on the mounting pins behind the bracket.
3.Pull the mounting pins out of the caliper bracket and remove the air line from the caliper. The caliper should now be able to be removed.
4.Disassemble the brake caliper and remove the cap screws securing the brake pads.
5.Remove the brake rotor and have it profes- sionally resurfaced at an automotive machine shop if it has gouges in it. If visible cracks are present in the brake rotor, replace it with a new one. Remove oil and dirt from the rotor with automotive brake cleaner. Once clean, only handle the rotor with a dry rag and install exactly the reverse of removal.
6.Install new brake pads, mount the caliper and reconnect the air line.
7.Test the safety shutdown operation by run- ning the sander and pressing the emergency stop controls.
G0486/G0487 Wide Belt Sander |