W1751 25"
SERVICE
Brake Service
Check the brake rotor (shown in Figure 25) regularly to make sure it is clean and the pads are still in good condition (see Figure 26). Using the emergency stop system for daily machine shutdown will wear out the sanding belts and the brake pads. Inspect for any grease or oil on the brake rotor as oil reduces emergency braking ability. To clean any lubricants from the rotor, only use automotive brake parts cleaner and a dry rag. Replace brake pads if they are contaminated with oil or if you suspect they are failing. DO NOT
To check the condition of the brake pads, do these steps:
1.DISCONNECT THE SANDER FROM POWER, AND SHUT OFF AND RELIEVE THE AIR PRESSURE!
2.Remove the
3.Measure the thickness of each pad, if a pad is below 1⁄8" (Figure 25), then replace both brake pads.
To replace the brake pads, do these steps:
1.DISCONNECT THE SANDER FROM POWER, AND SHUT OFF AND RELIEVE THE AIR PRESSURE!
2.Use a 14mm wrench and remove the two caliper anchor pin retaining nuts and washer (see Figure 25).
3.Use locking pliers to clamp on the anchor pin end and pull the pin from the caliper mount, and remove the springs and caliper (see Figure 26).
4.If the rotor is damaged, remove the rotor and have it surfaced at a machine shop. Clean the rotor with automotive brake parts cleaner and handle it with a dry rag when installing.
5.To finish the job, install the new brake pads, reassemble and mount the caliper, and reconnect the air line if removed.
Rotor
Anchor Pin
Caliper
Figure 25. Brake assembly.
1⁄8" Minimum
Figure 26. Brake caliper removed for
access to brake pads.
SERVICE
6.Test the emergency brake operation!