General Pump MW Repair Manual - Manual (Page 12)

GENERAL PUMP
A member of the Interpump Group
MW/S SERIES
In the event that it is necessary to replace one or more con-rods or plunger guides, operate as follows:
Unscrew the screws with tool #F27566200 to unlock the con-rods (1, fig. 32) and then extract the con-rod
plunger guide units from the back casing opening (1, fig. 33).
It is now possible to disassemble the plunger guide seal rings, taking care to not damage the plunger guide
sliding rod.
Whenever it becomes necessary to replace the plunger guide seal rings without
dismantling the entire mechanical part, it is possible to extract the seal rings with the
use of tool #F27644300 operating as follows:
Insert the tool between the rod and the seal ring (1, fig. 34) and, with the extractor hammer, complete
insertion of the tapered section inside the seal ring (1, fig. 35).
Page 12
Ref 300791 Rev.C
11-12