TM-9-2350-238-20-2
CRANE (CAB) COMPONENTS RECOVERY VEHICLE, FULL TRACKED: LIGHT,ARMORED, M578
TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL
MAY 1993
CHANGE 1
TM-9-2350-238-20-2 - Page 437 of 495
TM 9-2350-238-20- 2
F-9. TRAVERSING HYDRAULIC SUBSYSTEM .
Functional Description .
a.
The hydraulic fluid power for th e
direction through the hydraulic motor (9) ,
operation of the traversing subsystem is
which traverses the cab to the right .
supplied by the hydraulic power subsystem .
e.
When directional control valve (2) i s
b.
The traversing hydraulic subsyste m
in neutral position, hydraulic fluid flows
controls the power for rotational movemen t
through the open center port to the flow
of the cab .
divider manifold in the hydraulic power
subsystem .
c .
Depressing the forward portion of th e
foot pedal of the directional control valv e
f.
When the engine is not operating o r
(2), directs hydraulic fluid at 2050 ps i
during hydraulic power failure, the travers-
(14,135 kPa) through the solenoid valve (4)
ing brake (7) can be manually released by
to the brake release valve (6), releasing th e
setting the brake release valve (6) to HAND
brake (7), and to the hydraulic motor (9) ,
PUMP PRESSURE and operating the han d
which traverses the cab to the left. Th e
pump, so that the cab can be rotated .
return flow from the hydraulic motor (9)
passes through the solenoid valve (3) an d
g .
During tow winch operation, ca b
the directional control valve (2) and back t o
traversing is controlled automatically by a n
the reservoir .
electrical sensing system. The sensin g
system energizes either the solenoid valv e
d.
Depressing the rear portion of th e
(3) for right traversing, or the solenoi d
foot pedal of the directional control valv e
valve (4) for left traversing. Hydraulic
(2) has the same effect as when traversin g
pressure at 1750 psi (12,066 kPa) is sup-
Ieft, described above, except that th e
plied by the 8 gpm pump in the hydraulic
hydraulic fluid is routed in the opposit e
power subsystem .
F-1 8
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