(b)
Do a check for leaks of hydraulic fluid at the bodies of the antiskid valves and at the hydraulic tubing connections to the antiskid valves.
S 216-004
(4) Do a check of the wheel speed transducer at each wheel location.
NOTE: To do a check of a wheel speed transducer, it it
____ necessary to remove the related hubcap assembly for access. Refer to 32-42-11/401 for instructions on removal and installaton of the hubcap assembly.
(a)
Do a check of the connection of the spider to the hubcap assembly and make sure the spider is not loose.
(b)
Do a visual check of the spider and make sure there is not any unusual wear or damage at the spider.
(c)
Do a visual check of the transducer in the area of the drive shaft. 1) Make sure there is not leakage at the seal around the drive
shaft.
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2) Make sure the transducer housing adjacent to the drive shaft is not damaged.
(d)
Do a check that the lockring that secures the transducer is tight.
(e)
Do a visual check of the drive coupling for wear and damage.
(f)
Turn the drive coupling quickly and make sure the wheel speed transducer operates smoothly and quietly.
S 766-005
(5)
Do a contunity test of the circuits for the antiskid valves and wheel speed transducers.
(a)
Make sure the ANTISKID switch on the Center Instrument Panel P2, is in the ON (guarded) position.
(b)
If necessary, release the parking brake.
(c)
Supply electrical power (Ref 24-22-00/201).
(d)
Pressurize hydraulic system B (Ref 29-15-00/201).
(e)
Do these steps to do a continuity test of the circuit for each of the antiskid valves: 1) Set the WHEEL SELECT switch to one of the positions
specified below:
a) LI (switch position to test the circuit for the normal antiskid valve related to the left inboard wheel location)
b) LO (switch position to test the circuit for the normal antiskid valve related to the left outboard wheel location)
c) RI (switch position to test the circuit for the normal antiskid valve related to the right inboard wheel location)
d) RO (switch position to test the circuit for the normal antiskid valve related to the right outboard wheel location)
e) L ALT (switch position to test the circuit for the alternate antiskid valve related to the left wheel locations)
f) R ALT (switch position to test the circuit for the alternate antiskid valve related to the right wheel locations).
2) Push and hold the VALVE switch on the front panel of the antiskid control unit.
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(f)
(g)
(h)
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3) Make sure the center green LED on the front panel of the antiskid control unit comes on.
4) Release the VALVE switch.
5) Make sure the center green LED on the front panel of the antiskid control unit goes out.
6) Do the above series of steps with the WHEEL SELECT switch set to each of the positions specified above.
Do these steps to do a continuity test of the circuit for each
of the wheel speed transducers:
1) Set the WHEEL SELECT switch to one of the positions specified below: a) LI (switch position to test the circuit for the wheel speed transducer at the left inboard wheel location) b) LO (switch position to test the circuit for the wheel speed transducer at the left outboard wheel location) c) RI (switch position to test the circuit for the wheel speed transducer at the right inboard wheel location) d) RO (switch position to test the circuit for the wheel
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