78
English 5.906-548.0 Rev. 00 (04/12)
1 High pressure seal
2 Screwdriver
3 Pump head
Remove the high pressure seals.
Note
Grease the new high pressure seal prior to installa-
tion.
1 Installation mandrel
2 High pressure seal
3 Installation sleeve
4 Pump head
Place the installation sleeve onto the pump head.
Grease the high pressure seal with max. pressure
grease.
Install the high pressure seal into the piston guide
using an installation mandrel into the pump head
(observe installation positioning).
The suction jumper must be removed to replace the
suction valves.
Note
For the HDS 5/12, the suction jumper is made of plas-
tic and does not contain a connection for the deter-
gent suction hose.
1 Fastening screws, suction jumper
2 Suction jumper
3 Pump head
Unscrew the fastening screws of the suction jump-
er.
Remove the suction jumper.
1 Seal of suction jumper
2 Suction jumper
3 Detergent suction hose connection
Remove the seals and clean the seal surfaces.
Grease the new seals and install them.
Unscrew the detergent hose connection, clean it
and replace with a new seal.
6.6.4 Replace high pressure seals
6.6.5 Remove the suction jumper, replace the
seals and the suction valves