TM 9-2330-381-14
NOTE
Apply only enough pressure on cylinders to force fluid/air out of cylinders. Do not
allow steerable axles to move or too much pressure has been applied.
8.
Slowly operate steering valve for a right turn. Use caution not to turn any of the steerable axles. Observe fluid/air
flow out of one tube (2). Continue to hold pressure on steering valve (para. 2-6) until a steady stream of hydraulic
fluid flows out of tube (2) for approximately 10 seconds; then, close that bleed valve (3). Release steering valve.
9.
Slowly operate steering valve for a left turn. Use caution not to turn any of the steerable axles. Observe fluid/air
flow out of other tube (2). Continue to hold pressure on steering valve (para. 2-6) until a steady stream of hydraulic
fluid flows out of other tube (2) for approximately 10 seconds; then, close that bleed valve (3). Release steering
valve.
10.
Remove both tubes (2) from bleed valves (3).
11.
Repeat steps 5 thru 10 for bleeding streetside gooseneck steering cylinder.
WARNING
To avoid injury to personnel when bleeding platform steering cylinders, use three
people to perform the following steps. One person is required to operated steering
valve, a second person is required to check fluid/air flow out of the bleed tubes,
and a third person is required to relay signals between the other two.
12.
Repeat steps 5 thru 10 for bleeding curbside platform steering cylinder.
13.
Repeat steps 5 thru 10 for bleeding streetside platform steering cylinder.
14.
Shut down APU (para. 2-16) and check fluid level in hydraulic tank (para. 4-19) and refill as necessary.
15.
Release semitrailer brakes. Start APU (para. 2-16). Turn on tractor clearance lights and manually steer full left and
full right several times and return steering to center. Steering pressure indicator light should not be lit.
16.
If steering pressure indicator is lit, rebleed steering hydraulic system.
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