Dry Cleaning; Cleaning With Covers In Place; Coach Side Windows; Emergency Exit Windows - PREVOST H3-41 Maintenance Manual

direction of the pile which can easily be
recognized by running a hand lightly over the
pile. If the fabric become excessively dirty,
particles of grit will cause gradual wear, reducing
the life span of the fabric.

15.3.2 Dry Cleaning

If covers are to be removed for cleaning, dry
cleaning is recommended since washing might
cause some shrinkage, preventing the covers
from being reapplied to the seats without
damage. Other than spot cleaning the covers
while they are in place, dry cleaning is not
recommended, since the resulting fumes could
be hazardous in the confines of the coach and
the solvent could be detrimental to the foam
padding of the seats.

15.3.3 Cleaning With Covers in Place

The most effective and economical method to
clean the fabric seat covers is by washing with
either an approved foam upholstery cleaner or
with a mild household detergent.
Thoroughly vacuum the upholstery. Remove any
spots or stains before the seats are washed to
avoid a cleaning ring.
Dilute household detergent or liquid foam
cleaner according to directions on the container.
Pour a small quantity into a flat pan and work
into a thick foam with a sponge or brush.
Apply only the foam to the fabric with a sponge
or brush. Clean a small area of the fabric at a
time with the foam. DO NOT SOAK. Rub
vigorously.
Sponge the suds from the fabric with a clean
sponge or cloth moistened with water. Rinse the
sponge or cloth often and change the water
when it becomes dirty.
Allow the upholstery to dry completely before the
coach goes back into service. To speed up
drying, excess moisture can be blown off the
fabric with compressed air.
CAUTION
Oil in the air line will soil the fabric. Blow the
line clear and test air discharge against a plain
white piece of paper. It is also effective to
press the edge of a flat hardwood stick down
on the cushion and slowly draw it across the
fabric.
Even very soiled areas can be returned to their
original appearance by a thorough cleaning, but
a regular schedule of cleaning that keeps the
upholstery reasonably clean at all times will
greatly enhance the life span of upholstery.

16. COACH SIDE WINDOWS

Seven passenger side windows are provided on
each side on H3-41, while the H3-45 has eight.
They are made of fixed, single or double-glazed,
heat absorbing AS-3 glass. Windows are
mounted in painted aluminum extrusions, which
hold the glass in place from the top rail of the
coach. The extrusion also serves as a hinge to
allow the window to swing open when needed.
The single-glazed windows are made of tinted
tempered safety glass, while the double-glazed
windows are made of tinted tempered safety
glass outside and clear tempered glass inside.
The two trapezoidal windows are also mounted
on an aluminum extrusion (except for H3-45 VIP,
where they're mounted with adhesives. Refer to
"Adhesive Mounted Windows" in this section, for
more information on this type of installation). The
trapezoidal windows are made of fixed, double
glazed, heat absorbing AS-3 tempered safety
glass inside and tempered glass outside.

16.1 EMERGENCY EXIT WINDOWS

Three of the windows on each side serve as
emergency exits on the H3-41, while there are
three of them on curb side of the H3-45, and four
on driver's side. See Figure 32 and Figure 33.
Except for the window upper edge, the three
other glass edges are unprotected, which
causes the workers to be exceptionally careful
when manipulating or installing such windows.
In addition, when it becomes necessary to lay
down the unprotected edges of the glass
window, never use a steel or concrete floor
support. It is recommended to use a wooden
support, even better, a padded surface.
PA1621 Maintenance Manual All Series
SECTION 18a: H3 SERIES BODY
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Revised Sept 2019
43