because the hydraulic system is under
pressure at all times.
a. General. For identification of the hydraulic lines
that connect to the various components of the hydraulic
system, refer to figure 1-5.
b.
Removal.
(1)
Loosen or remove the hydraulic hose boot
or support.
(2)
If more than one hose is to be removed,
tag the hoses so they can be reinstalled in the correct
position.
(3)
Refer to figure 4-6 for identification and
removal of the hydraulic hoses and fittings.
c.
Cleaning, Inspection and Repair.
(1)
Wipe
all
parts
clean
with
a
cloth
dampened with cleaning solvent (Fed Spec P-D-680)
and dry thoroughly.
(2)
Inspect all fittings and hoses for damaged
threads.
(3)
Inspect the hoses for cracks, breaks or
other damage.
(4)
Repair by replacement of defective parts.
d.
Installation.
(1)
Refer to figure 4-6 and install the hydraulic
hoses.
(2)
Install the boot (30) and hose supports
and remove identification tags.
(3)
Refer to LO 5-3820-241-12 and service
the hydraulic system.
(5)
Operate the rock drill (para 2-5) and check
for leaks.
4-16.
Hydraulic Pump Shut Off Valve
a.
Removal.
(1)
Refer to figure 3-4 and release the air
pressure from the hydraulic system.
(2)
Remove the hydraulic pump shut-off valve
as illustrated in figure 4-7.
4-12
