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XL-AS20067BM-en-US · 2021-02-05 · Amendments and Errors Reserved · © SAF-HOLLAND, Inc., SAF-HOLLAND, HOLLAND, SAF,
and logos are trademarks of SAF-HOLLAND S.A., SAF-HOLLAND GmbH, and SAF-HOLLAND, Inc.
Figure 3
Installation Instructions
4. PosiLift AN / AS Installation
IMPORTANT:
The trailer MUST be unloaded before
beginning service procedures.
1. On a level surface, support the front of the trailer with
either a kingpin stand, landing gear, or while coupled
to a tractor.
2. Raise the trailer frame approximately 2" (51 mm) above
the suspension’s specified ride height
(Figure 2)
.
3. At the suspension’s specified ride height, place multiple
jack stands under the vehicle's frame per OEM specified
locations, then lower the trailer onto the jack stands.
Failure to properly support the suspension
during maintenance could create a crush
hazard which, if not avoided, could result
in death or serious injury.
4. Exhaust all the air from the system by:
a. Disconnect the height control valve lower link connection
and rotate the height control valve control arm down
(approximately 20°) to exhaust position.
b. Disconnect the air supply line from the air springs.
5. Set the parking brakes and chock the tires.
Failure to completely exhaust air springs
and chock the tires prior to removal
could result in unexpected vehicle
movement which, if not avoided, could
result in death or serious injury.
IMPORTANT:
If the air spring has a leak and is deflated,
Step 3 MUST still be performed.
6. Raise the axle that will become the lift axle until the air
spring is in the full up position and support with jack stands.
7. Remove the pivot hardware from both suspension frame
brackets and discard.
8. Inspect the suspension frame brackets and other
components for excessive wear.
Failure to replace worn components
could compromise suspension
performance which, if not avoided, could
result in component or property damage.
9. Place the hanger mounted lift bracket under the
suspension frame bracket and attach the tie plate, 1/2" bolts
and nuts to connect the two components.
(Figure 3)
.
Figure 2
“A”
RIDE HEIGHT
SUSPENSION
FRAME BRACKET
TIE PLATE
(INTERNAL)
LIFT BRACKET
