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Allison Transmission AT 543 Service Manual

Allison Transmission AT 543
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iv Copyright © 1996 General Motors Corp.
LIST OF WARNINGS
This manual contains the following warnings —
IT IS YOUR RESPONSIBILITY TO BE FAMILIAR WITH ALL OF THEM.
When checking the transmission fluid level, be sure that the parking brake
and/or emergency brakes are set and properly engaged, and the wheels are
blocked. Unexpected and possible sudden movement may occur if these
precautions are not taken.
While conducting a stall check, the vehicle must be positively prevented from
moving. Apply the parking brake and service brake, and block the wheels
securely. Warn personnel to keep clear of the vehicle and its travel path.
Failure to do so can cause serious injury.
Observe safety precautions during hydraulic pressure check procedures. All
personnel must stand clear of the vehicle. Take precautions against movement
of the vehicle. Be sure that gauges (vacuum, pressure, tachometer) have
extended lines so that they can be read from inside the vehicle.
Do not burn discarded Teflon
®
seals; toxic gases are produced by burning.
Never dry bearings with compressed air. A spinning bearing can disintegrate
allowing balls or rollers to become lethal flying projectiles. Also, spinning a
bearing without lubrication can damage the bearing.
Be sure all pressure is exhausted from the torque converter before loosening
the test fixture nut and removing the test fixture.
The retarder control priority valve and plug and regulator valve and plug are
spring-loaded and must be restrained while the retaining pins are being
removed.
The retarder control autoflow valve plug is spring-loaded and must be
restrained while the snapring is being removed.

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Allison Transmission AT 543 Specifications

General IconGeneral
BrandAllison Transmission
ModelAT 543
CategoryMicrophone system
LanguageEnglish

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