Introduction; Description Of Symbols; Repair Guidelines; Repairing Mechanical Parts - Pratissoli LK Serie Manual De Reparación

1

INTRODUCTION

This manual describes the instructions for repairing LK 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 oil, you must remove the oil filler cap pos. , Fig. 1
and then the drain plug pos. , Fig. 1.
The used oil must be placed in a suitable
container and disposed of in special centres.
It absolutely should not be discarded into the
environment.
2.1.1

Disassembly of mechanical parts

The correct sequence is as follows:
Completely empty the pump of oil, as indicated in par. 2.1.
Remove the valve lifters from the head and the head from the
pump casing as shown in par. 2.2.1 (from Fig. 103 to Fig. 105).
Detach the upper inspection cover and the lower inspection
cover by unscrewing the 4+4 attachment screws, as shown in
par. 2.2.3 (Fig. 139 and Fig. 140).
Remove the O-rings and replace them if necessary.
Remove the three pistons and the liner/gasket support
assemblies, as shown in par. 2.2.3 (Fig. 138, Fig. 141 and
Fig. 142).
Remove the three spray-guard spacer rings and the spray-
guards, as shown in par. 2.2.3 (Fig. 143 and Fig. 144).
Unscrew the M6 locking grub screws of the three oil seal
covers (pos. , Fig. 2).
Screw in a threaded bar or an extractor M6 screw in the holes
in the oil seal covers (pos. , Fig. 3) and remove the covers
from the pump assembly (pos. , Fig. 4).
Fig. 1
37
Fig. 2
Fig. 3