PREVOST H3-41 Maintenance Manual page 784

SECTION 18b: X3 SERIES BODY
FRONT STEPS GLUING
1. Use step nosing to measure and cut
necessary length of white safety strip.
2. Use a screw
countersinking in step nosing. Screw top
must not stick out beyond the aluminum
surface. Countersink if needed.
3. Apply some Sika 252 onto the step; make
sure to cover the whole surface of the step.
Use a serrated spreader with 1/8-inch
serration to spread Sika.
4. Apply a bead of Sika 221 onto the perimeter
of the step.
5. Install step and press with hands. If Sika
overflows, clean with Sika 208. Repeat
previous stages for each step if applicable.
6. Remove protective film from double-coated
self-adhesive tape located underneath step
nosing, position step nosing then press. Drill
and fix using screws.
7. Clean top of step nosing using Sika 205
(refer to Section B).
8. Apply some Sika 221 onto white safety strip,
spread with a spatula to cover the whole
surface.
100
PA1621 Maintenance Manual All Series | Revised Sept 2019
to check depth of
9. Position white safety strip then press using
hands. If Sika overflows, clean with Sika
208.
10. Temporarily fix white safety strip with a piece
of duct tape, leaving 1 to 2 inches free at
each end.
11. Apply some masking tape onto the step
perimeter, clean using Sika 205 (refer to
Section B) then apply a bead of Sika 252
black. Smooth out the joints then remove
masking tape.
12. Install weights onto the steps. Minimum
waiting time: 2 hours.
X3