SECTION 7
HIGH PRESSURE WATER
Nov 2002
p. 7-8
05126826
7.2.4 Hydraulic Seal Cartridge & Plunger -- Remove/Install
With the HP cylinder removed from the hydraulic cylinder head (Section
7.2.3), the following items become accessible:
• Cartridge retainer flange
• Hydraulic seal cartridge
• Plunger
• Hydraulic cylinder head
• Hydraulic piston and cylinder
1. Remove the proximity switch on the intensifier side nearest HP cylinder to
be serviced. This procedure will allow hydraulic oil to drain to tank and will
minimize oil spillage. Draining takes about 5 minutes.
2. To remove the hydraulic seal cartridge, use a screwdriver to remove the
internal retaining (snap) ring that holds in the cartridge retainer flange.
Remove cartridge retainer flange.
Item Description
(1) Cylinder Head (2) Plunger
(3) Hydraulic Cartridge, Plunger Seal (4) Bushing Retainer Flange
(5) Retaining Ring (6) Hydraulic Cylinder
(7) Plunger Removal Tool