TM 5-3895-371-24 & P
(10)
Install harness clamp (1) at bottom of hydraulic control box in cab.
(11)
Start engine, activate control box switches and have second mechanic check for proper
functions.
Section XVI. MAINTENANCE OF AIR CONTROL BOX
2-20. Air Control Box.
NOTE
If a known solenoid does not function and the air pressure
is normal, first check for proper voltage at the solenoid
terminal with the switch applied. If no voltage is present
repair electrical failure. If voltage is present and solenoid
does not function, replace the solenoid.
a.
Removal of Bar On-Off Solenoid Valve. (Refer to fig. 2-16.)
(1)
Remove air control box assembly cover (59) as follows:
(a) Remove hex nut (45) and flat washer (46) that fastens knob (47) to control valve;
then pull knob straight off.
(b)
Remove cover (59) by removing sixteen screws (58).
(2)
Remove center toggle switch (61) on top of air control box (64).
(3)
Disconnect two lines (4) and remove two elbows (32).
(4) Remove two bolts (62), two washers (6), three nuts (40), tubing clamp (39), and care-
fully remove solenoid valve (43) as far as attaching wires permit.
(5) Disconnect nylon tubes (30) and (49), two male connectors (5), pipe tee (20), pipe
nipple (3), globe valve assembly (44) and nipple (35).
(6)
Disconnect solenoid wires at terminal strip (56). Tag wires to aid in reassembly. (Refer
to fig. 2-18.)
(7)
Remove capscrew (41) and washer (42); then separate bracket (60) from solenoid valve
(43).
Installation of Bar On-Off Solenoid Value. (Refer to fig. 2-16, 2-17, and 2-18.)
b.
(1)
Install solenoid valve (43) on bracket (60) and fasten with capscrew (41) and washer
(42).
(2) Install two tubing elbows (32), nipple (35), globe valve assembly (44), pipe nipple (3),
pipe tee (20) and two male connectors (5).
Connect nylon tubes (30) and (49).
(3)
(4)
Connect wires to terminal strip (56). (Refer to fig. 2-18.)
(5)
Connect two nylon tubes (4) to tubing elbows (32) on solenoid valve (43).
(6)
Install center toggle switch (61) on top of air control box (64).
2-45
