TM 9-2330-381-14
2-34.
OPERATION WITH DISABLED BOGIE (CONT)
CAUTION
When installing the axle isolation chain assembly on the bogie, make sure that the
chains do not contact any hydraulic lines or air brake hoses. Contact of chains on
the lines and hoses may cause chafing or parting of lines/hoses, loss of air brake
pressure, loss of hydraulic fluid, and damage to equipment.
d. Route hook (3) of streetside chain (4), along streetside of bogie between both hydraulic and air brake lines and
upper suspension arm, into opening in upper suspension arm casting (5).
e. Position chain assembly bracket (6) underneath square opening of axle casting (7), making sure that streetside
chain (4) is on streetside of parking brake chamber (8).
f. Route hook (3) of curbside chain (9), along curbside of bogie between both hydraulic and air brake lines and
upper suspension arm, into opening in upper suspension arm casting (5).
g. Position chain assembly bracket (6) so that bottom rear edge of square axle casting (7) sits between blocks (10)
and pins (11) of bracket (6).
h. Take up slack in chains by tightening adjustment nuts (1) on eyebolts (2).
WARNING
Make sure suspension isolation valve at the affected bogie is closed (handle facing
outward) prior to adjusting platform height or the suspension chain can break and
cause injury to personnel and damage to equipment.
i. Pull suspension valve (12) handle outboard to closed position to isolate affected bogie.
j. Except at affected bogie, ensure that all remaining suspension isolation valves (para. 2-6) are in open position
(handles inboard).
k. Raise platform (para. 2-19) to normal running height of 43 inches (109 cm).
CAUTION
Brakes on the disabled bogie must be released without contacting the brake drum
or damage to equipment may result.
l. Rotate dual tire assembly (13) in both directions and check for brake drag or contact with brake drum. If
necessary, turn nut (14) clockwise until dual tire assembly (13) spins freely without brake drag or contact with
brake drum.
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