TM 10-4610-241-24
TO 40W4-13-42
3-43.1
HIGH PRESSURE PUMP (R.O. PUMP) MOTOR REPAIR (MODELS H-9518-1, H-9518-2, AND
H-9518-3) - continued.
C.
(9)
Using arbor press, remove slinger (20), bearings (21 and 22) and spring washer (23) from shaft of rotor (15).
(10)
Remove four studs (24) from stator (16).
Cleaning
WARNING
Compressed air can blow dust into the eyes. Wear eye protection. Do not exceed 30 psi
(207 kPa) air pressure.
(1)
Wipe rotor (15) with clean rags. Using compressed air, blow dust and grit from stator (16) and rotor (15).
(2)
Clean fan cover (11) vent slots with compressed air and wipe with clean rags.
(3)
Wipe off dirt and grease accumulation on bearings (21 and 22) with clean rags.
(4)
Scrape loose paint from fan cover (11), motor stator (16) and brackets (12 and 17). Prime and paint as
necessary.
d.
Inspection.
( 1)
Inspect leads and windings of stator (16) for evidence of cracked or burned insulation. If cracked or burned,
replace motor.
(2)
Inspect rotor (15) for loose or burned conducting bars. If loose or burned, replace motor.
(3)
Inspect bearings (21 and 22) for wear, leaking seals and binding.
(4)
Inspect brackets (12 and 17) for cracks and corrosion.
e.
Repair
(1)
Replace slingers (19 and 20).
(2)
Replace all defective components.
f.
Assembly
(1)
Using arbor press, install slinger (20) and bearings (21 and 22) on shaft of rotor (15).
WARNING
Rotor is heavy/difficult to handle. Use two personnel when removing rotor from stator
assembly.
CAUTION
Stator assembly wiring inside motor casing can be damaged by rotor or rotor shaft if
rotor is not installed carefully.
Change 1 3-244.3
