Figure 13 Four Barrel Nuts In Passenger-Side End Dome; Table 13 Domes And Roc Panel Assemblies For Lgd/Lpx Models - Federal Signal Corporation Legend LGD Installation, Operation And Service Manual

Table 13 Domes and ROC panel assemblies for LGD/LPX models

Model
LGD24/LPX24
LGD32/LPX32
LGD45/LPX45
LGD53/LPX45
LGD61/LPX61
LGD70/LPX70
Removing and Inspecting the Domes
To remove and inspect the domes:
1. Remove the 1/4-20 Phillips-head barrel nuts securing the dome, then carefully
remove the dome to avoid damaging the lip seal. See Figure 13.
2. Verify that an O-ring is under the head of each barrel nut and not stuck to the
dome. Use a wooden or plastic pick to carefully remove the O-rings from the
dome to prevent damaging them.
3. Inspect the O-rings and the lip seal for deformation, brittleness, cuts, or tears.
To maintain watertightness, replace a questionable O-ring or seal.
4. Inspect the dome for cracks, crazing (hairline cracks), discoloration, and other
defects. Replace defective domes. For replacement parts, see Table 15 on page
51.

Figure 13 Four barrel nuts in passenger-side end dome

Installation, Operation, and Service Manual
Federal Signal www.fedsig.com
Domes ROC Panels
Driver Side
Two End
Passenger Side
Driver Side
Two End
Center
One Center
Passenger Side
Driver Side Two End
Passenger Side Two Intermediate
Driver Side Two End
Center One Center
Passenger Side Two Intermediate
Driver-Side
Two End
Center 1
Two Center
Center 2
Two Intermediate
Passenger Side
Driver-Side
Center 1 Two End
Center 2 Three Center
Center 3 Two Intermediate
Passenger Side
Maintaining and Servicing the Legend
290A5984
39