TM 55-1730-229-12
b. Hydraulic Fluid Fill at Reservoir
(6) Using a funnel, slowly pour hydraulic fluid
into extension tube until reservoir fluid level is 3/4 to 7/8
Breather Vent.
full.
(1) Connect reservoir servicing unit (tool 18-C)
(7)
Close RESERVOIR DRAIN valve.
to Reservoir Breather Vent using bulkhead union (tool
20-C).
(8) Loosen the fill extension tube and swivel fill
tube to the left to drain excess fluid into a container. Re-
NOTE
move fill extension tube.
You should hear the reservoir relief valve open.
This is normal.
(9) Install reservoir breather vent and SYSTEM
DRAIN port caps.
(2) Pump reservoir servicing unit until reservoir
is to desired level.
(10) Replace protective caps onto both ends of
fill extension tube and store on inside of hydraulic control
(3)
Disconnect reservoir servicing unit.
panel access door.
(4)
Replace plug on reservoir breather vent.
(11)
Wipe up any fluid spillage.
(5)
Wipe up any fluid spillage.
d. Hydraulic Fluid Fill Using Suction Method.
c.
Hydraulic Fluid Fill Using External Fill Tube.
(1) Remove cap from reservoir breather vent at
top of reservoir.
This procedure requires that at least one inch of
fluid is visible in the reservoir level gauge and
(2)
Remove cap from SYSTEM DRAIN port.
that the hydraulic system is known to be oper-
ational. Attempts to fill by this method when
hydraulic pump is not primed will damage the
(3) Remove fill extension tube from bracket in-
pump.
side hydraulic control panel access door.
(1) Remove cap from reservoir breather vent at
(4) Remove protective caps from fill extension
top of reservoir.
tube and attach short section of tube to the SYSTEM
DRAIN port.
(5)
Open RESERVOIR DRAIN valve.
