General Pump LK Repair Manual - Manual (Page 41)

GENERAL PUMP
A member of the Interpump Group
LK SERIES
Remove the upper inspection cover (pos. 1. fig. 139) and the lower inspection cover (pos. 1, fig. 140) by
unscrewing the 4 attachment screws.
2.2.3 Dismantling the Plungers-Supports-Seals Assembly
The plunger assembly requires regular inspection as indicated in the preventive maintenance table in the
Owner’s Manual. Operations are limited to a visual check for any draining from the hole in the lower cover. If
there are anomalies/oscillations in the outlet pressure gauge, or drips from the drain hole, then the seal
packing must be checked and, if necessary, replaced. To extract the plunger assemblies, work as follows:
To access the plunger assembly, unscrew the M16X150 screws and dismantle the head.
Take the greatest care when sliding out the head to avoid subjecting the plungers to
knocks or bumps.
Remove the plungers by unscrewing the attachment screws (pos. 1, fig. 138). Slide the plunger from the gas-
ket support and check that its surface does not have scratches, signs of wear or cavitation.
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