General Pump MK Repair Manual - Manual (Page 35)

GENERAL PUMP
A member of the Interpump Group
MK SERIES
Page 35
Remove the wiper rings from the plunger guides (1, fig. 116).
If replacement of the plunger guide oil seal is needed, disassemble the oil seal cover by operating as follows:
Unfasten the two screws of the oil seal cover (1, fig. 117).
Extract the oil seal cover by screwing a threaded M5 bar or screw into the correct holes on the cover
(1 fig. 118); extract the oil seal cover from the pump unit (1, fig. 119).