PREVOST H3-41 Maintenance Manual page 663

FIGURE 54: WCL UPPER ARM AND RAIL
3. Pull the door in or push from the outside to adjust the door with reference to the vehicle outside
surface.
4. - Unfasten the upper arm bolt located on the door side.
- Position the top rail at 3mm from the ceiling bracket.
- Force the upper arm down then tighten the upper arm fixing bolt.
- Pull the upper rail towards the inside in order to remove the play between the roller and the upper
rail then tighten the rail fixing bolt at the back.
- Push the lower rail towards the outside in order to remove the play between the roller and the lower
rail then tighten the rail fixing bolt at the back.
FIGURE 55: WCL LOWER RAIL INSTALLATION
5. Adjust the gap between the positioning lugs and their housing, required gap: 0.5 – 1.5mm. Add shims
underneath the lugs to get the proper adjustment.
6. Take away the plays from the upper arm assembly by lifting the main hinge using a crowbar. Tighten
the main hinge bolts
NOTE
Do not exert too much force to lift the door.
7. Open WCL sliding door completely.
8. - Pull the upper rail towards the inside in order to remove the play between the roller and rail then bolt
the rail at front and center. Add some shims if necessary between the rail and the structure before
tightening the bolts.
TORQUE: 31-38 lb-ft (42-52 Nm)
PA1621 Maintenance Manual All Series
SECTION 18a: H3 SERIES BODY
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Revised Sept 2019
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