THRUSH AIRCRAFT, INC – MODEL S2R-R1340
AIRCRAFT MAINTENANCE MANUAL
9-4
Effective: 01/01/08
accelerate curing. A maximum of
150
°
F for four hours is
recommended followed by ten or
more hours at 70
°
F.
F. Brush the resin generously over the
entire area. Apply alternate layers of
fiberglass cloth and mat. Each layer
should overlap the preceding layer
approximately one inch. After each
layer is in place, use a squeegee
and/or roller to remove excess resin
and air voids.
Figure 9-2: Hopper Repair
HOPPER GATE BOX REMOVAL
Ref. Figure 9-3
Remove the aircraft skins to gain access
to hopper gatebox bolts and nuts.
Disconnect dump fork, spray tube,
adapter box and vent, emergency shut
off cable and spray pump. Remove the
nuts and bolts attaching the gate box to
the adapter box and pry off the two apart.
If bolts do not drive out easily,
turn bolts to break glue, and
then drive bolts out.
Clean off all old gasket material by
scraping, being careful not to gouge
mating surfaces.
HOPPER GATE BOX INSTALLATION
Ref. Figure 9-3
Before installing gate box, be sure that all
mating surfaces are clean and dry. For
maximum strength, apply 3M Scotch-
Weld™ DP-190 Translucent Epoxy
adhesive evenly to both mating surfaces
and both sides of gasket thoroughly.
Using alignment pins to hold gaskets in
place and to help align gate box, install
bolts using large area washer on hopper
side and tighten nuts.
CAUTION
