Repairing Hydraulic Parts; Disassembly Of The Head-Valve Units - Interpump Group KT-WK Serie Manual De Reparación

Once the type and number of shims have been determined
using the table, check the following: assemble the shim pack
on the indicator side cover centering (Fig. 15), secure the cover
to the casing, following the procedure in par. 2.1.2, and tighten
the screws to their recommended torque.
Check that the shaft rotation stall torque is between 4 Nm and
6 Nm.
If this torque is correct, connect the con-rods to the bend
shaft and to the next stages. If it is not, redefine the shim pack,
repeating the operations.
2.2

REPAIRING HYDRAULIC PARTS

2.2.1 Disassembly of the head‑valve units
Operations are limited to inspection or replacement of valves,
if necessary and, however, at the intervals indicated in the
"PREVENTIVE MAINTENANCE" table in chapter 11 of the use
and maintenance manual.
The valve units are assembled vertically inside the head.
Operate as follows to extract them: unscrew the 8 M14x40
valve cover fixing screws (Fig. 16);
using the extractor hammer code 26019400, extract:
A) Valve plugs (Fig. 17);
B) Outlet valve units (Fig. 18);
C) Valve bushes (Fig. 19), combined with tool code 27513600;
E) The suction valve units (Fig. 20); while for the KT16-KT18-
WK525-WK530 pump outlet valve units, being without
threading for extraction, should they remain glued in
place on the head, use a simple tool as indicated in
(Fig. 21):
Fig. 15
Fig. 16
20
Fig. 17
Fig. 18
Fig. 19
Fig. 20