hp20mdl1sm-rev0621
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• Model HP20 High Pressure
sandpiperpump
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com
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TECHNICAL NOTES :-
Removal of Diaphragm Shaft :-
After first removing manifolds and air-hoses, remove both outer covers (27), followed by frontplates (51), diaphragms (5), bac kplates (2)
and bumpstops. Remove air-chamber assy, by removing nuts & bolts This allows access to locknuts (16) to remove air
diaphragm, backplates & thrust washer (29), (27) & (15). Diaphragm Shaft can now be removed. Assembly is reverse of removal, applying a
small amount of Loctite grade 242 to locknuts prior to refitting air-chamber assy.
16
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5
51
27
4: AIR
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