Replacing An End Gasket; Replacing A Lip Seal; Figure 15 End Gasket In The End Base Cavity - Federal Signal Corporation Legend LGD Installation, Operation And Service Manual

Maintaining and Servicing the Legend
5. Slide the base onto the extrusion. For a flush fit between the bases, apply
pressure to the ends of the outer bases and tighten the base retainer screw.
6. Reinstall the PCBs.
a. Reconnect the cable clamp on the cable entry side.
b. Reconnect the wires and harnesses and invert the PCB on the plastic standoffs.
c. Reconnect the ground wire(s) to the aluminum extrusion using the 5/16-inch hex
7. Reinstall the domes as described in "Reinstalling the Domes" on page 40.

Replacing an End Gasket

The end gaskets cushion the aluminum extrusion against the end of the end bases
for a snug fit. Check the end gaskets for cracks, tears, or brittleness.
To replace the gasket:
1. Remove the old gasket from inside the end base.
2. Peel the paper backing from the new gasket.
3. Center the gasket in the end of the cavity in the end base.
4. Press the gasket along its length so that it adheres evenly.

Figure 15 End gasket in the end base cavity

END
GASKET

Replacing a Lip Seal

Check the lip seals for cracks tears, or brittleness.
To replace the seal:
1. Remove the light bar's domes as described in "Removing and Inspecting the
Domes" on page 39.
2. Note the joint position of the seal, then remove the old lip seal.
3. Install the seal with the fins angled downward as shown in Figure 16,
positioning the joint in the same position as original (slightly off-center along
the straight surface where the bases mate). The edge of the seal should be
flush with the top surface.
42
Ensure that the ground wire is not caught between the edges of the PCBs.
bolt(s) removed in step 1.b. on page 40. Do not overtighten the bolts.
290A5989C
Legend LGD and Legend LPX Light Bars
Federal Signal www.fedsig.com