TM 9-2320-289-348-5.POWER STEERING PUMP REPAIR (Con’t).10.Remove 2 dowel pins (29) from pumpring (23). Remove drive shaft seal(26) and 2 “O” rings (27 and 28).Discard “ O“ rings,b. CLEANING AND INSPECTION WARNING• Dry cleaning solvent P-D-680 is toxic and flammable. Always wearprotective goggles and gloves and use only in a well-ventilated area,Avoid contact with skin, eyes, and clothes and DO NOT breathe vapors.DO NOT use near open frame or excessive heat. The solvent’s flashpoint is 100°F-138°F (38°C-59°C). if you become dizzy while usingcleaning solvent, immediately get fresh air and medical help, if solventcontacts eyes, immediately wash your eyes with water and get medicalaid.• Compressed air used for cleaning purposes should never exceed 30 psi(207 kPa). Use only effective chip guarding and personal protectiveequipment (goggles/shieid, gloves, etc.). Failure to follow this warningmay result in injury to personnel.1.Clean all parts with dry cleaning solvent, Dry with compressed air.2.Inspect the following rotating group components:(a) Vanes (22) for scoring or excessive wear; and fit of vanes in rotor (20) for sticking orexcessive play.(b) Rotor (20) slots for burrs and excessive wear at thrust faces.(c) Inner surface of pump ring (23) for scoring or wear.If any of these conditions exist, replace rotor, vanes, pump ring, and retaining ring (21) as anassembly.TA505028-35
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