7
T51002 E
InstallatIon, servIce and troubleshootIng Procedures
PREPARING TRAILER FOR SERVICE
NOTE: DO NOT service a suspension or any
components that are under warranty without
first contacting Hendrickson Technical
Services. Refer to CONTACT HENDRICKSON for
details.
WARNING: To prevent serious eye injury, always
wear safety glasses when performing
trailer maintenance and service.
Figure 1:
Trailer preparation
Before beginning any work on a trailer suspension
system, the following steps help to ensure conditions
are safe. Refer to GENERAL SERVICE NOTES on
page 4.
1. Park trailer on a level, debris-free surface.
2. Set trailer parking brakes.
3. To prevent the trailer from moving, chock wheels
on axle not being raised.
4. Exhaust air from the trailer suspension.
5. Release trailer parking brakes.
6. If necessary, using a jack, raise trailer until
wheels clear the work surface.
7. Support raised trailer with safety stands.
WARNING: Do not work under a trailer supported
only by jacks. Jacks can slip or fall
over, resulting in serious personal
injury.
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