Repair manual

PS2 500, PSA2 500 Repair
Repair.fm 75
Test Oil Chamber Pressure
1. After installing mechanical seal, attach a vacuum pump to oil
housing.
2. Raise negative pressure inside the oil chamber to 60 cmHg (11.6
in.Hg).
IMPORTANT: DO NOT exceed 60 cmHg (11.6 in.Hg).
3. Hold the vacuum position for 10 seconds. The gauge should
remain absolutely stable.
—Replace mechanical seal upon failing vacuum test.
6.3.2.4 Motor Reassembly
Note: If upon inspection and testing, a pump component requires
replacement, use only original manufacturer’s replacement
cables complete with anti-wicking block assembly and
certified for submersible use.
Note: Use only new gaskets and o-rings when reassembling pump.
1. Insert thin metal piece (cw) into recess of rubber plug (rp).
2. With stator (ar) inside motor housing, turn motor housing upside
down and insert the previously assembled pieces into casting.
3. Temporarily attach oil housing (ak) with three hex socket bolts (al).
4. Turn pump upright so it rests on three stud bolts protruding from oil
housing.
5. Carefully lower rotor (av) into center of stator (ar) guiding rotor
shaft through center of oil housing (ak).
6. Holding rotor (av) in place, tuck motor leads inside housing and
turn motor and motor housing upside down. Make sure wires are
not pinched and housing sits on a clean, flat surface.
7. Remove three bolts (al) that secure oil housing (ak) to motor
housing (l). Lift oil housing (ak) off and set aside.
8. Slide mechanical seal (am) over exposed shaft of rotor (av).
Note: Apply oil before assembly.
9. Lay o-ring (as) in place and assemble oil housing (ak) to motor
housing (l) with three socket hex bolts (al).
—Tighten bolts sequentially one quarter turn at a time until tight.
Mechanical seal becomes slightly compressed in the process.
10.Press rubber wear ring (an) to bottom of oil housing (ak).
11.Dip white plastic bushing in clean SAE 10W/20W oil and push into
recess of housing until it seats itself flush with the mating surface.
12.Slide dust seal and sleeve (ao & ap) on rotor shaft.
13.Align impeller keyway with rotor shaft keyway. Slide impeller (aq)
on shaft.