Interpump Group Pratissoli EV-E4 Serie Manual De Reparación página 13

1 INTRODUCTION
This manual contains instructions for repairing EV - E4 pumps
and must be read carefully and understood before performing
any work on the pump.
Proper pump operation and duration depend on the correct
use and maintenance.
Interpump Group disclaims any responsibility for damage
caused by negligence or failure to observe the standards
described in this manual.
1.1 DESCRIPTION OF SYMBOLS
Read the contents of this manual carefully before each
operation.
Warning Sign
Read the contents of this manual carefully before
each operation.
Danger Sign
Wear protective goggles.
Danger Sign
Put on protective gloves before each operation.
2 REPAIR GUIDELINES
2.1 REPAIRING MECHANICAL PARTS
Mechanical parts must be repaired after the oil has been
removing from the casing.
To remove the oil it is necessary to remove: the oil dipstick 
and the plug pos. , Fig. 1.
1
2
The used oil must be poured unto a suitable
container and consigned to an authorized
recycling center.
Do not release used oil into the environment
under any circumstances.
2.1.1 Disassembly of the mechanical part
The operations described must be performed after
removing the hydraulic part, ceramic pistons and splash
guards from the pump (par. 2.2.3, 2.2.4).
Remove in the following order:
- the pump shaft tab
- the rear cover
- the con-rod cap as follows:
unscrew the cap fixing screws, remove the con-rod
caps (Fig. 2) paying attention to the sequence during
disassembly.
- the side covers using for extraction 3 fully threaded M6x50
screws, inserting them in the threaded holes as indicated
in Fig. 3.
- Push the piston guides forward with their con-rods to
facilitate side extraction of the pump shaft as shown in
Fig. 4.
Fig. 1
13
Fig. 2
Fig. 3
Fig. 4