SECTION 7
HIGH PRESSURE WATER
May 2003
p. 7-11
49831951
7.2.6 Hydraulic Cylinder Head and Piston—Removal / Re-Installation
1.
Remove HP and LP piping/ hose, then remove HP cylinder jug following
procedure 7.2.2 above.
2.
Remove proximity switch (19) at cylinder end to be serviced. Loosen the
remaining proximity switch to drain hydraulic oil in tank.
3.
Remove hydraulic seal cartridge (8). Seal cartridge (8) removal is
recommended to avoid sliding cylinder head (4) over plunger (2). The
plunger need not be removed at this stage.
4.
Loosen and remove 8 each socket head cap screws (18) retaining cylinder
head (4) to hydraulic cylinder (15). The cylinder head and its O-ring (16)
can be removed. The proximity switch mounting flats provide a small lip
for loosening the cylinder head.
5.
To remove the hydraulic piston (21) from the hydraulic cylinder (15),
remove one cylinder head, remove the proximity switch toward that end.
On the opposite end remove the HP cylinder and end cap, then remove
the retainer flange and hydraulic cartridge. The piston must be driven
from the cylinder bore due to the seal squeeze and friction. Use a plastic
head hammer to avoid striking the assembly with a metal object. See
Section 7.3.7 for servicing the hydraulic piston.
6.
Reassemble the hydraulic cylinder by reversing the above steps.
Tighten 12M socket head capscrews (8 per cylinder head) in a crossing
pattern to 190-210 N-m (140- 155 ft-lbs).
CAUTION
--Remember to install and tighten proximity switches. Failure to do
so will result in considerable spraying of hydraulic oil.
7.
Install HP cylinder jug to hydraulic cylinder head per paragraph 7.2.2.
Содержание STREAMLINE SL-IV PLUS
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