Komatsu PC88MR-10 Shop Manual page 1213

a Do not scrape excessively and damage the
coating surface. Even if the adhesive and
dam rubber are left on the sheet metal
surface, it is OK as long as they do not
prevent the bonding effect of new adhesive.
(If the coating surfaces are damaged,
adhesion will be lowered.)
(Figure shows the operator's cab on a wheel
loader.)
2. By using white gasoline, remove oil, dusts and
stains from bonding surfaces on operator's cab
(8) and window glass (9).
a Clean them thoroughly since insufficient
cleaning induces defective adhesion.
a Clean all the black part on the back of the
window glass.
a After cleaning, leave them for more than 5
minutes for natural drying.
3. Apply primer (10).
a Since useful life of primer is 4 months from
the date of production, do not use an
overdue primer (10).
a Make sure to use primer within 2 hours from
opening its cap.
a Even when putting the lid again immediately
after opening, be sure to use it within 24
hours from opening. (A primer must be
disposed when 24 hours have elapsed from
opening.)
PC88MR-10
50 Disassembly and assembly
1) Stir both primers for paint surface and glass
thoroughly before use.
a If a primer was chilled-stored in a
depository, leave it at least half a day in
room temperature before stirring it. (If you
open the lid of a primer immediately after
having been chilled-stored, dew will
condense on the surface of primer. So
allow a sufficient period of time for the
primer to be settled in the room
temperature.)
2) When reusing a brush (11) for applying a
primer, clean it with white gasoline before
use.
a After cleaning, check again that the brush
is free from stains or fouling.
a Provide a brush for the primer for paint
surface and another for glass.
3) Apply primer for paint surface uniformly to
the mounting position of the dam rubber of
operator's cab (8) and the portion outside of
it to which adhesive is applied.
Primer for surface to be coated:
SUNSTAR paint surface primer
580 SUPER
a Primer is applied for up to 2 times.
(Application more than 2 times cause
degradation.)
a Area to be coated: Entire area of
dimension (a).
Primer coating dimension (a): 25 mm
Cab and its attachments
50-185