TM 9-2590-209-14&P
Section XII. MAINTENANCE OF MANIFOLD UNLOADER ASSEMBLY
4-47. Description. The manifold unloader assembly
4-48. Removal (Fig. 4-14).
is mounted inside the manifold assembly located on the
front of the tank. Hydraulic oil from the control valve
a. Open line carefully to relieve
pass through the unloader assembly to the two
pressure. Drain hydraulic fluid from system
cylinder assemblies. If there is a pressure
overload, the unloader assembly relieves the
pressure and returns the bypassed oil to the
b. Remove 12 screws and lockwashers
reservoir.
securing manifold assembly cover and gasket,
and remove cover and gasket.
CAUTION
Do not remove drain plugs or
c. Disconnect tube assembly located
disconnect tubes while engine is
between control valve and unloader assembly.
running to prevent damage to
hydraulic pump.
d. Remove unloader assembly from
manifold assembly by unscrewing from elbow.
e. Remove elbow from manifold assembly
Figure 4-14. Removal, disassembly, assembly or installation of manifold unloader assembly.
4-32
