Disassembly / Reassembly Operation
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Disassembly of the pump
Unscrew the nuts (19) and put aside the flange (1), the tie
rods (14) and the protection (4),
Clamp the pump horizontally through the body (7) with a
vice,
Unscrew the nut (35) and take off the shovel (34), the
washer (33) and the spacer (32),
Unscrew the tube (37) and take off the seal (36),
Unscrew the valve body (21) and the outlet with the lower
valve (28) and its seat (30),
Remove the piston / shovel rod assembly,
Unscrew the cylinder (10).
Cup seals
Nota: the pump body (7) consists of a cartridge (7b) to make
easier the changing of the seals.
Unscrew the cup (5),
Take off the 12 screws (7d) that tighten the cartridge (7b) in
the body (7a),
Take off the cartridge (7b) screwing the extractors in the 3
M8 holes of the cartridge,
Take off the washers (6 & 12) and the seals (11),
Change the seals (11),
Change the seal (7c).
Clean and reinstall the parts in the reverse order of the
disassembly sequence.
7d
7b
7c
7a
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