Disassembly / Reassembly Operation
Disassembly of the pump
Lower valve
Wet cup seals
Piston head
40
Unscrew the 2 nuts (16) and put aside the flange (1), the tie
rods (10) and the protection (4),
Clamp the pump horizontally through the body with a vice
(7),
Unscrew the foot-valve body assembly (23) taking off if
necessary the washer (25),
Take off the piston (11) downwards,
Put aside the cylinder (21).
Push the ball (19) to remove the spacer (18),
Take off the seat (20), the seal (22) and the pin (24),
Put aside the seal (9),
Clean the parts, check them if they are damaged or worn.
Reinstall the parts in the reverse order of the disassembly
sequence.
Unscrew the wetting cup nut (5),
Take off the washers (6 & 13),
Put aside the seals,
Clean the parts, check them if they are damaged or worn.
Reinstall the parts in the reverse order of the disassembly
sequence.
Unscrew the seat (17),
Take off the ball (15), the washers (6 & 13) and the seals (14),
Clean the parts, check them if they are damaged or worn.
27/10/2020
582131110-2B0225-indA-EN.docx