Figure 4--7 Hose Back Positioning; Figure 4--8 Hole-Saw Cuts In Floor; Figure 4--9 Hole-Saw Cuts Joined; Figure 4--10 Rear Wall Access - Carrier Transport Air Conditioning Installation Procedures Manual

Figure 4- -7 Hose Back Positioning
Before drilling holes for the hoses in the wall or through
the floor, make sure there are no electrical harnesses,
braces, etc. in the path of the hose routing and hole saw.
4. Drill a 3/16 inch pilot hole in the center of where you
are going to drill the two 1 1/2 inch holes. This will
show you if you can safely cut the two 1 1/2 inch
holes in the floor.
5. Drill two 1-1/2 inch holes side by side within the hose
cover markings (see Figure 4--8).
Figure 4- -8 Hole-Saw Cuts in Floor
6. Saw out any material remaining between the two
holes, leaving an oblong hole to route the hoses
through (see Figure 4--9).
Figure 4- -9 Hole-Saw Cuts Joined
Repeat steps 1. through 6. to obtain access to the wall or
floor, depending which one you start with.
Figure 4- -10 Rear Wall Access
7. Remove any sharp edges from around the holes to
prevent hose cutting and/or chaffing.
After holes are drilled, sawed and deburred, you are
ready to mount the hose cover backs using common
fasteners such as screws or pop rivets (see Figure 4--11
& Figure 4--12).
The opening in the vehicle floor must be
sealed to minimize introduction of exhaust
4--3
CAUTION
T--311