TM 1-1730-232-13&P
3-154.4 Hydraulic Pump Replacement, Model 204-050-200-5 (AVUM)-Continued
NOTE
Only hydraulic pump assembly with part number 61780 can be used to replace either defective
pump removed above. A mounting plate and hydraulic fitting guard are already Installed on
the replacement pump assembly
B. INSTALL
Install a hydraulic pump as follows:
1.
Refer to figure3-6 and install Hydraulic Pump (4), with part number 61780.
a.
Position hydraulic pump (4) on cradle assembly (10) and align mounting holes
b.
Insert bolts (25) through holes in pump mounting plate and hydraulic fitting guard; attach with washers (17)
and nuts (26).
c.
Install bolt (18) over pump (4) body and insert through holes in cradle, attach with washers (17) and nuts
(16).
d.
Install tee fitting (27), wrapped with Teflon Tape (item 8, Appendix D), In reducer/metering valve in pump.
e.
Connect hose assemblies to both sides of tee fitting (27), but do not tighten completely at this time.
Ensure that hoses do not rub on wheels.
f.
Perform fill and bleed procedure of hydraulic system in accordance with service procedure in C below..
NOTE
If an older version pump (BU0953B) was removed as part of a disassembly procedure, it will be reinstalled using
following procedure.
2.
Refer to figure 3-5 and install Hydraulic Pump (5), with part number BU0953B.
a.
Position hydraulic pump (5) on cradle assembly (10) until It is centered over four mounting holes in cradle.
b.
Install spacer (20) under pump at front, install U-bolt (19) over pump body (5) and insert through holes in
spacer and cradle; attach U-bolt with washers (17) and nuts (16).
c.
Install bolt (18) over pump body (5) and insert through holes in cradle; install washers (17) and nuts (16).
d.
Install tee fitting (27), wrapped with Teflon Tape (item 8, Appendix D), in reducer/metering valve in pump.
e.
Connect hose assemblies to both sides of tee fitting (27), but do not tighten completely at this time.
Ensure that hoses do not rub on wheels.
f.
Perform fill and bleed procedure of hydraulic system in accordance with service procedure in C below.
GO TO NEXT PAGE
3-21
