Power Window Installation; Roof Escape Hatch; Repair - PREVOST H3-41 Maintenance Manual

SECTION 18a: H3 SERIES BODY
9. Detach the motor and actuator guide from
the support and plastic shield. Replace parts
as required.
FIGURE 22: DRIVER'S WINDOW

12.2 POWER WINDOW INSTALLATION

1. Energize the motor and position the actuator
to its full extended position.
2. Using alcohol, a sharp knife or 240-grit
sandpaper, clean off the butyl strip from the
shield and frame. Install new butyl strip on
plastic shield.
3. Install new window in opening. Use duct tape
to hold it in upper position. Fix the window
support using
disassembly. Use Loctite on threads.
4. Fasten window support to actuator using the
recovered bolts (item 1). Use Loctite on
threads.
5. Expose the other sticky side of the butyl
strip. Install motor support and actuator
assembly using recovered bolts (item 2).
Stick plastic shield in place.

13. ROOF ESCAPE HATCH

The vehicle can be equipped with one or two
escape hatches. The escape hatch is designed
to provide years of reliable service with a
minimum of maintenance. All components are
rust proof, and moving parts are Teflon coated to
eliminate need for lubrication. Should water
infiltrate the vehicle from the escape hatch, refer
to the heading "Sealing" in this section for
procedures on how to seal this area.
32
PA1621 Maintenance Manual All Series
23358
bolts recovered from
|
Revised Sept 2019
CAUTION
Use of lubricants, paints, or other coatings
such as graffiti deterring sprays is not
recommended.
Suggested maintenance
inspection of fasteners for evidence of loosening
due to tampering, and regular cleaning with mild
soap and water.
Although there are other cleaning solutions
available, some contain solvents and other
chemicals that can attack the high strength
materials used in the production of the escape
hatch.
CAUTION
Ensure that cleaning solutions are compatible
with the materials used on the escape hatch.
Graffiti removing cleaners often contain acetone,
ether, lacquer thinner or other solvents known to
destroy the high strength properties of many
plastics. Use of these cleaners must be avoided.
Graffiti-resisting coatings often leave a sticky
residue that interferes with smooth up/down
movement of the hatch mechanism. Some of
these coatings also contain solvents that will
reduce the strength of certain components.
CAUTION
Use of these coatings is at considerable risk
and should be avoided.

13.1 REPAIR

All components used in the production of the
escape hatch are available as service parts,
except for one hinge that represents a possible
hazard when improperly reattached to a hidden
tapping plate, itself often damaged whenever the
hinge is damaged. The tapping plate is
permanently laminated between the inner and
outer cover assemblies, and it cannot be
inspected or replaced. It is therefore necessary
to replace the entire assembly following damage
to the hinge. See Figure 23 and Figure 24.
includes periodic