CHARGE AND SCAVENGE PUMP PUMPS
10A - 9
INSPECTION
1. Tie bolts (1 and 2), seal repair kit (4 through 14) and seal
retainer washer (25) are only serviced parts. If any other part
other than these need replacement, replace complete pump.
2. Clean all parts and dry thoroughly with compressed air. Inspect
edges and faces of gears for scoring or roughness. If possible,
remove with Carborundum stone. Inspect shaft and bushings for
excessive wear. Inspect remaining parts for wear, cracks and
breakage.
REASSEMBLY
REMARK
Callouts from exploded and cross section views correspond with
callouts in following steps.
REMARK
When assembling pump, absolute cleanliness is a must to prevent
premature failure. Lubricate all parts liberally as they are assem-
bled with clean oil.
1. Install thrust plate (13), bronze side up, with cut out towards
suction port, large port, to back plate (24).
2. Coat section o-ring (6) with amber grease and install to groove
in back plate.
3. Aligning match marks, install rear housing (23) to back plate.
4. Install rear gears (22) into rear housing.
5. Using a dull tool, tuck the diaphragm seal (9) into grooves of
center housing (20) so the open part of "U" section is down.
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