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TM 9-2320-360-20-1
NOTE
· Interaxle lockup will not operate until AIR
PRESS gage reads greater than 65 psi
(448 kPa).
· Interaxle lockup will only operate with
TRANSFER CASE shift lever in LOW
position and DRIVELINE control in LOCK
position
· Refer to air hose diagrams in front of this
system troubleshooting section for air line
locations.
Check the following air lines and fittings for leakage and
damage.
Air line no. 2074 from no. 2 air reservoir to air manifold
Air line no. 2785 from air manifold to air manifold
Air line no. 2765 from air manifold to driveline lockup valve
Air line no. 2766 from driveline lockup valve to interaxle
lockup pilot
Air line no. 2761 from air manifold to push valve
Air line no. 2762 from push valve to interaxle lockup pilot
valve
Air line no. 2767 from Interaxle lockup pilot valve to air
manifold
Air line no. 2339 from air manifold to interaxle lockup valve
on no. 2 axle
Air line no 2422 from air manifold to interaxle lockup valve
on no. 3 axle
DRIVELINE LOCKUP VALVE
TEST
(1)
Start engine (TM 9-2320-360-10)
and allow air pressure to build
greater than 65 psi (448 kPa).
(2)
Shut off engine (TM
9-2320-360-10).
(3)
Position DRIVELINE control to
LOCK.
(4)
Loosen air line no 2766 on driveline
lockup valve and check for air flow
from driveline lockup valve.
(5)
Tighten air line no 2766 on driveline
lockup valve.
Change 2 2-883
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