General Pump SM Repair Manual - Manual (Page 27)

GENERAL PUMP
A member of the Interpump Group
SM SERIES
Page 27
2.1.3 Increase and Reduction Classes
INCREASE TABLE FOR CRANKSHAFT AND CONNECTION ROD HALF-BEARINGS
Recovery classes
(mm)
P/N
Half-bearing
Upper
P/N
Half-bearing
Lower
Correction on the shaft pin
diameter
(mm)
0.25 F90928100 F90928400 Ø79.75 0/0.02 Ra 0.4 Rt 3.5
0.50 F90928200 F90928500 Ø79.50 0/0.02 Ra 0.4 Rt 3.5
INCREASE TABLE FOR PUMP CASING AND PLUNGER GUIDE
Recovery classes
(mm)
P/N
Plunger Guide
Adjustments on the Pump
Casing housing
(mm)
1.00 F73050243 Ø71 H6 +0.019/0 Ra 0.8 Rt 6
Ref 300894 Rev.A
06-12
2.2 Repairing Hydraulic Parts
2.2.1 Dismantling the Head-Liners-Valves
The head does not require periodic maintenance.
Operations are limited to inspection or replacement of the valves, when necessary. To extract the valve
assemblies work as follows:
Unscrew the M10x140 head liner fixing screws without removing them (1, fig. 95) in such a way as to free them.