Interpump Group SWS71 Manual De Reparación página 15

1 INTRODUCTION
This manual describes the instructions for repairing SS71,
SN71, SW71 and SWS71 series pumps and should be carefully
read and understood before any intervention 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.
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 with their lower half-bearings
(Fig. 2) paying attention to the numbered sequence during
disassembly.
To avoid possible errors, caps and con-rod shanks have been
numbered on one side (Fig. 2/a, pos. ).
- The lateral covers using for the extraction No. 3 fully
threaded screws M6x50 inserting them in the threaded
holes as indicated in Fig. 3.
Fig. 1
15
Fig. 2
Fig. 2/a
Fig. 3