PREVOST Le Mirage XL II Ultimate, Service Manual

Page: 14 / 53

XL2 SLIDE-OUT SERVICE MANUAL
This rod allows an adjustment between the slide-
out horizontal member and the roof. When
screwing the turnbuckle, the roof is moved
upward, and vice versa. Use this rod to adjust
the horizontal member parallel to the slide-out. A
member not parallel with the slide-out may
cause the inflatable seal to leave the wiper seal.
4. RACK
Slide-out movements are made by a system of
racks and pinions. There are four racks on each
slide-out (figure 2 and figure 3). These racks are
made of plastic. Because of that, the pinion
should never have to be replaced, but only the
racks.
4.1 MAINTENANCE
Once a year, check the racks for broken or worn
teeth, especially the front slide-out racks. Also,
check the bottom rack fastening hole teeth that
are weaker and might break (figure 18). Replace
the racks if excessive wear is present. Clean
racks from sand or other debris. Check that the
bolts are tight and check the backlash between
the gear and the rack. Excessive backlash
indicates rack wear.
FIGURE
18 :
BOTTOM RACK
4.2 UPPER RACK REPLACEMENT
ON BOTH SLIDE-OUT
The procedure is the same for both units.
1. The slide-out must be retracted and all the
pins locked.
2. Deflate the air seal completely to prevent
any damage (see the slide-out operation
manual).
3. Loosen the pinion keyless bushing of the
rack to be changed and slip the bushing out
of the pinion.
4. From inside the slide-out, unscrew all the
rack screws (figure 2 and figure 3).
5. Move the pinion away from the rack and
remove the rack from its location by pulling it
out.
6. Remove the old waterproof material from the
slide-out structural rack seat.
7. Apply Sika 221 sealant or equivalent product
in the rack seat to prevent water infiltration.
8. Install a new rack in the rack seat. Apply
sealant Sika 221 or equivalent product on
screw thread before screwing them.
9. Reinstall the keyless bushing into the pinion.
Tighten the pinion keyless bushing
according to the procedure in section 5.6.
Caution: Make sure all keyless bushings are
tightened to 125 lb-ft before unlocking the pins
or moving the slide-out. Refer to section 5.6 for
torque wrench settings.
10. Re-inflate the air seal at 10 psi.
4.3 FRONT SLIDE-OUT LOWER
RACK REPLACEMENT
1. Remove the slide-out from the vehicle as
described in section 1.3.
2. From under the slide-out, unscrew all the
rack screws and remove the rack.
Note: The rack for the pinion and guide wheel
assembly is narrower than the other one.
3. Install a new rack. Tighten the screws using
Loctite 242 or equivalent product.
4. Reinstall the front slide-out inside the vehicle
as described in section 1.4.
Caution: Make sure all keyless bushings are
tightened to 125 lb-ft before unlocking the pins
or moving the slide-out. Refer to section 5.6 for
torque wrench settings.
4.4 REAR SLIDE-OUT LOWER RACK
REPLACEMENT
1. Deflate the air seal completely to prevent
any damage (see the slide-out operation
manual).
R3 14 May 3, 2002