Kistler-Morse KM L-Cell Bolt-On - Manual (Page 52)

Chapter 5. L-Cell Installation on Skirt-Supported Vessels
5-15
10. See Figure 5-31, 5-32, and 5-33. Peel the protective backing from the
double-sided tape on the environmental cover’s inside flange.
A. Align the cover over the L-Cell, with the cable through the
cover’s exit channel. Press the cover onto the mounting surface.
B. Spread a 1 / 8 ” (3.2mm) bead of sealant around the joint between
the cover and mounting surface. Add extra sealant to the cable
exit channel and between cable and skirt.
C. Use your finger to smooth the sealant around all edges and
joints, eliminating areas where moisture may pool, especially
along the top edge. Verify the sealant forms a continuous,
watertight seal.
CAUTION
Only use Sikaflex 1A polyurethane sealant or Dow Corning
RTV 739 or RTV 738. Other sealants may contain acetic acid,
which is harmful to sensors and electronics.
11. Repeat Steps 1 through 10 to install the L-Cell on the inside of the
skirt wall.
12. Thread the outside L-Cell cable through the 3 / 16 ” diameter hole in
the skirt wall to bring the cable to the inside of the skirt.
13. Clean with degreaser and then spread Sikaflex 1A sealant:
A. Over the open hole on the backside of each screw,
B. Over the template mounting hole, and
C. Around the cable routing hole in the skirt wall. Use your finger
to press sealant into each hole.
Note
Mounting hardware for the junction box is not supplied by K-M.
Screw size up to
1 / 4 -20 screw is compatible with the box.
1. Remove the junction box cover.
2. See Figure 5-34. Hold the junction box at the previously marked
mounting location. Use a pencil to mark the two center mounting
holes.
3. Drill and tap the mounting holes.
4. Mount the junction box with screws and flat washers. Tighten the
screws until snug. Replace the junction box cover and screws if not
ready to begin wiring the junction box, to ensure no moisture
enters the junction box.
Mounting the Junction Box
Figure 5-34. Junction Box Mounting
Outside Mounting Holes for Flat
Surfaces (4 places)
Figures 5-31, 5-32, 5-33.
Installing Cover