SK
36
2.2.3 Dismantling the piston – supports – seals assembly
The piston assembly does not need periodic maintenance.
Operations are limited to a visual check of the draining of the cooling circuit. If there are
anomalies/oscillations in the outlet pressure gauge, or pulsations in the cooling circuit drainage pipe (if
elastic), then the seal packing must be checked and, if necessary, replaced.
To extract the piston assemblies work as follows:
Separate the head and the spacer for liners from the pump casing as shown in 2.2.1 (from fig.106 to fig.113).
Remove the upper inspection cover (pos.
c
, fig.120) and the lower inspection cover (pos.
c
, fig.121) by
unscrewing the 4+4 attachment screws. Slip off the O-rings and replace them if necessary.
Remove the pumping elements with an open-ended wrench (pos.
c
, fig.122) and check their state of wear
(pos.
c
, fig.123). Replace them if necessary.
fig. 122
1
fig. 123
1
fig. 120
1
1
fig. 121
Summary of Contents for SK Series
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