Two piece firewall shield, 3/8-Inch hole and various dimple sizes for grommets.
Two piece shields for use over cables or wires with large end-fittings
or existing installations. Single piece for use where the cable or wire
may pass through the hole. Flat shields designed for use on wooden or
composite firewalls using a fire resistant sealant to prevent leaks. Both
types of shield available in flat or with dimple to accommodate rubber
grommets up to outside diameter.
Actual hole size in 2 piece shields is slightly larger than indicated to
prevent chafing cable. Ream pilot hole in single piece shields oversize
for the size grommet used. Use grommets that fit tightly around the cable
or wire to insure a good seal.
Shields may be installed with screws, bolts and plate nuts or rivet nuts.
Install cable and grommet in firewall. Locate the shield to insure that it
is centered on the cable - then drill attach holes in firewall. Shields predrilled
with 5/32” mounting holes. If more than one cable passes through
grommet fire resistant sealant must be applied to grommet.
**Caution: Any holes drilled in the firewall are potential source of carbon
monoxide in the cockpit. Extreme caution must be exercised when
installing firewall shields in your aircraft. They do not provide the nec essary
seal around cables or wires to prevent carbon monoxide, smoke or
fire from entering the cockpit. The shields are designed only to protect
the sealing material (grommets/gaskets) from excessive heat.