MCi Crusader II 1989 Maintenance Manual page 87

Date
1-1-89
Page. ____
3-_14 _ _
MC-9 MAINTENANCE MANUAL
NOTE: Cement must be sprayed on
smoothly. If spraying equipment Is not
available, the cement can be brushed on;
however, appllcatlon must be thin, uniform
and smooth.
1. Apply masking tape around the outside area of the precise
area to be covered by the patch. Using medium grit (120) sand-
paper on a sanding block, thoroughly abrade the entire area
that is to be covered. Wipe all residue off the surface with a
tack-rag or with a clean cloth dampened
with
isopropyl alcohol.
Spray or brush a thin, uniform DI-NOC brand primer 8004 on the
surface and allow to dry for approximately 15 minutes. Remove
all masking tape before the primer dries.
2. Cut the patch of 3M vinyl to the precise size of the area to
be covered. Oversized patches will not adequately adhere to
the unprimed edges and undersized pieces will leave non-
coated areas of film which would be susceptible to staining and
discoloration.
3. To remove the liner, place the vinyl face down on·a clean,
flat surface, hold firmly and remove the liner or backing with
a
smooth 180° motion. During hot or humid weather a slight
jerking motion will aid in the liner or backing removal.
NOTE:
Always remove the liner or backing
from the vinyl; never the vinyl from the liner
or backing as vlnyl stretching may rnuit.
4. Cut the liner or backing into two pieces (about 1 /3 and
2/3 of its original size). Do not cut the vinyl.
See
figure 3-8.
Place patch face down on a flat surface. Peel back and cut off
approximately 1 /3 from one edge.
Figure 3-8. Cutting Uner or Backing.
5. Replace the two liner or backing pieces on the vinyl
(adhesive side), leaving a gap of one to two inches between the
two pieces (figure 3-9). Replace liner paper on adhesive, plastic
side down, exposing about 1-2" (25.4-50.8 mm) of adhesive.
Figure 3-9. Replacing Lining Paper.
6. Use plastic applicator to burnish the exposed section of
the vinyl. Use firm, overlapping strokes working from the center
to the edge. This section will now act as a hinge when applying
the rest of the vinyl. Apply marking along line of exposed adhe-
sive. This will now act as a hinge.
Figure 3-10. Burnishing Vinyl.
7. Lift the smaller (1 /3) section of the vinyl and remove the
liner or backing as you "squeegee" with firm. overlapping
strokes. Repeat with larger (2/3) section. Go over all edges to
ensure that they are firmly adhered.
See
figure 3-10.
CLEAN-UP
Use a clean cloth dampened with either MEK (Methyl Ethyl
Ketone) or lacquer thinner to clean up any residual adhesive
which may have oozed out from beneath the vinyl.
WARNING:
Dl•NOC brand Primer
8004,
MEK (Methyl Ethyl Ketone) and lacquer
thinner are flammable liquids. Use only In
well ventilated areas away from flames or
sparks. Do not soak the vinyl with these
materials.
ALTERNATE METHOD OF VINYL REPAIR
A vinyl repair product is available from Advance Color Cor-
por~tion_. 800 South Vail Avenue, P.O. Box 54870, Los Angeles,
Cahforn,a 90054. This product. called Instant Vinyl, is used for
r~pairing cuts, tears. cigarette burn holes and the like in any
vinyl upholstery material. Instant Vinyl is a clear, jelly-like sub-
stance which acts as a bond between the edges of the original
vinyl and. in effect, replaces vinyl, providing a smooth and
completely flexible seam or weld.
REPLACEMENT OF FLOOR COVERING
1. Remove existing daf'!\aged floor covering from wood floor.
Thoroughly clean the floor by
wire
brushing or sanding.
2. Remove all sanding dust and other foreign matter. Floor
must be clean before applying adhesive.
3. Under passenger seats, on center aisle, driver's area and
entrance area, apply a coat of Armstrong Lino Cement No.
SP235 (M.C.I. Part No. 19-16-353) adhesive to plywood floor.
Vinyl covering can be applied immediately.
IMRON PAINT
If sheet metal parts are purchased from Universal Coach
Parts Inc., Northlake, Illinois and in Canada from Motor Coach
Industries, Service Parts Division, they will be forwarded in a
primed condition. It is then only necessary to apply finish coats
as outlined.
MCI model coaches are painted
with
Dupont lmron paint.
Instructions on painting with lmron follow.
This high gloss polyurethane enamel finish is designed for
exposure to extreme conditions. The 2-package product is
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