MANUAL BRAKE RELEASE PUMP MAINTENANCE - CONTINUED
CLEANING AND INSPECTION
Cleaning compound, solvent MIL-PRF-680 Type III is an environmentally compliant and low toxic
material. However, it may be irritating to the eyes and skin. The use of protective gloves and goggles is
suggested. Use in well-ventilated areas. Keep away from open flames and other sources of ignition.
Particles blown by compressed air are hazardous. DO NOT exceed 15 psi (103 kPa) nozzle pressure
when drying parts with compressed air. Use a maximum of 30 psi (207 kPa) when cleaning compo-
nents. DO NOT direct compressed air against human skin. Failure to follow this warning may cause
injury or death. Make sure air stream is directed away from user and other personnel in the area. To pre-
vent injury, user must wear protective goggles or face shield.
Clean all metal parts with cleaning compound, solvent.
Thoroughly clean O-ring grooves in valve body.
Use compressed air to dry valve body.
Check bores for scratches or damage.
Check valve body for cracks or damage.
Check all threads for peeled or crossed condition.
Inspect hand pump (CB534B) for cracks, nicks or stripped threads.
Replace all damaged parts.
Place manual brake release pump (15) in soft-jawed vise.
On CB534B Roller, install expansion plug (33) in manual brake release pump (15).
Install new O-ring (32) (CB534C) and plug (31) in manual handle release pump (15).
Install two check valves (30) in manual brake release pump (15).
On CB534B Roller, lubricate area of hand pump (29) that will be located inside the manual brake release pump (15)
with clean lubricating oil.
On CB534B Roller, install hand pump (29) in manual brake release pump (15) and tighten nut (27).