General Pump VF Repair Manual - Manual (Page 9)

GENERAL PUMP
A member of the Interpump Group
VF SERIES
Page 9
2.2 Fluid End Repair
2.2.1 Disassembly of the Head - Liners - Valves
The pump head does not require periodic maintenance. Service operations are limited to valve inspection or
replacement if needed. To extract the valve units proceed as follows:
A) Loosen the M8 x 100 screws that fix the liners to the head as shown in fig. 12.
B) Unfasten the head screws M12 x 260, #5 and #6 as shown in fig. 13, replacing them with two
auxiliary screws (p/n 27508200) as shown in fig. 14; then remove the remailing screws.