GENERAL PUMP
A member of the Interpump Group
Page 16
EV SERIES
Fig. 27
Check and verify their conditions, replace if necessary.
At every disassembly, all O-rings on the piston unit must be replaced.
2.2.5 Assembly of The Head - Seals - Piston Unit
To reassemble the various components, perform the operations listed above in reverse order to par. 2.2.3,
taking particular care with the following:
A)
Seals pack: respect the same order used during disassembly operations.
B)
Lubricate 2,3,5 components with OCILIS silicone grease code 12001600. This operation is deemed
necessary to facilitate the lip seal adjustment on the piston.
C)
For correct assembly of HP seals in their seats on the head without causing any damage to lip seals,
use suitable tools according to the pump diameters as indicated in chapter 4.
D)
Remount the pistons, tightening the screws with a torque wrench, respecting the tightening torque
value as indicated in chapter 4.
E)
Replace the head as follows:
1. Using two screws – service pins (code 27508200), fasten the crankcase as indicated in (Fig. 28).
Position the complete head, making sure that it is centered only on the central piston.
2. Complete operations, following the tightening procedure. For the values of the torques and
tightening sequences follow the instructions in chapter 3.
Fig. 28
Ref 301038 Rev. A
07-20
