General Pump MW Repair Manual - Manual (Page 31)

GENERAL PUMP
A member of the Interpump Group
MW/S SERIES
Page 31
It is now possible to remove the head from the pump casing, unscrewing the 8 M16 x 180 screws
(1, fig. 106). During assembly of the head, pay special attention not to hit the plungers (1, fig. 107).
2.2.2 Assembling the MW32A, MWS36A, MWS40A - Valve Units
Pay particular attention to the conditions of the various components and replace if
necessary. At every valve inspection, replace all O-rings both in the valve unit and in
the valve plugs.
Before repositioning the valve unit, thoroughly clean and dry the relative housings on
the head indicated by the arrows (1, fig. 108)
Proceed with reassembly following the reverse order indicated in 2.2.1.
Ref 300791 Rev.C
11-12