d.
e.
f.
g.
h.
i.
j.
k.
l.
TM 55-4920-428-13
Remove the hardware which attaches the valve to the panel. Remove the valve.
Remove the union, elbow, and packings from the valve.
Install the union, elbow with nut and packings. Coat with hydraulic fluid (item 2, table 5-2).
Position the valve on the panel. Install the retaining hardware.
Install knob and pin. Tighten setscrew.
Connect the two tubes to the unions.
Perform an operational check. (Ref para 5-18.)
Perform the proof pressure test. (Ref para 5-44.)
Install the panel in the case. (Ref para 5-45.)
5-35. Replacement of Low Pressure Limiter Valve.
a.
b.
c.
d.
f.
g.
e.
h.
(See fig. 6-5.) Remove the panel from the case. (Ref para 5-22.)
Disconnect the two tubes from the valve fittings. Remove the valve (103).
Remove the two nipples from the valve.
Install the two nipples on the replacement valve. Use teflon tape. (item 3, Table 5-2,) as required.
Position the valve. Connect the two tubes.
Adjust the low pressure limiter valve. (Ref para 5-43.)
Perform a proof pressure test. (Ref para 5-44.)
Install the panel in the case. (Ref para 5-45.)
5-36. Replacement of Check Valves.
a. (See fig. 6-5.) Remove the panel from the case. (Ref para 5-22. )
NOTE
Prior to removing a check valve, record the direction of the free flow ar-
row.
b. Disconnect the two tubes from the valve (61) fitting. Remove the valve.
c. Remove the two nipples from the valve.
d. Install the two nipples on the replacement valve. Use teflon tape (item 3, table 5-2) as required.
e. Position the valve. Check the direction of the free flow arrow. Connect the two tubes.
f. Perform an operational check. (Ref para 5-18.)
g. Perform a proof pressure test. (Ref para 5-44.)
h. Install the panel in the case. (Ref para 5-45.)
5-37. Replacement of ILCA Manifold.
a.
b.
c.
d.
(See fig. 6-5.) Remove the panel from the case, (Ref para 5-22.)
Disconnect the six tubes from manifold (104).
Remove the four nuts and screws attaching the manifold to the panel. Remove the manifold.
Remove the six unions and packings from the manifold.
5-11
