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INSTALLATION OF AIR-RAID SIREN
The sound carrying
ability and the efficient operation of the Chrysler Air Raid Siren will
be affected if care in the selection of the location and manner of
installation are not given careful consideration.
The following recommendations should be considered.
1. The Siren is manufactured and built to standard
specifications and thoroughly tested. All possible precautions are taken
in making the Siren ready for shipment, therefore, it is important that
suitable and adequate equipment is used in unloading it at destination.
2. The Siren is mounted on a shipping Skid, with both
Turntable Base and Frame anchored to the Skid. If Siren is to be started
while still on Skid, Frame anchors or Turntable belts first must be
3. The Siren when reaching destination should be
thoroughly inspected for damage and any irregularities should be
reported to the carrier.
1. If full coverage is desired, the Sirens should not
be more than Two (2) miles apart.
2. The highest building in each locality, with a
structural strength sufficient to withstand a weight of approximately
6500 pounds should be selected.
3. Consideration should be given to the accessibility
of the roof. An outside stairway is preferred although a fire escape may
4. Any necessary reinforcements that may apply to the
individual structure should be made and, at the same time, making
certain the base or foundation upon which the siren unit is to be
installed, is level.
1. Installation should be made on a corner of the
structure, or over a supporting wall, and as convenient as possible to
the entry to the roof.
2. The Siren should be installed level, with the base
of the Turntable securely bolted to its foundation. See (Figure 12) for
location of bolts.
3. Provisions for a 110 volt AC 15 ampere load
electric line should be made to the siren installation to be used in
connection with the Engine water jacket heaters, Battery heater and the
Battery trickle charger.
TO DISASSEMBLE SIREN
The Engine and Compressor units are properly aligned
on a rigid frame. Therefore, it is advisable to make installation of the
Siren as a complete unit. In any instance where the Siren must be
disassembled for installation purposes, the following procedure will
TO REMOVE COMPRESSOR UNIT
1. Remove Siren unit from shipping skid.
2. Remove propeller shaft metal guard between Engine
unit and Compressor unit.
3. Remove Engine unit side panels.
4. Place wooden blocks under each end of Siren frame
so it will not tip when weight of Compressor unit is removed.
5. Disconnect propeller shaft at Compressor shaft
end, by removing four (4) bolts connecting propeller shaft coupling to
Compressor shaft coupling.
6. Remove propeller shaft, by sliding, propeller
spline shaft out of Engine end of connection (wrap shaft with clean
cloth to prevent dirt adhering to splines).
For raising and lowering the Compressor assembly
slings should be attached as shown in Figure 13 under no circumstances
should slings be placed under the Horns.
If it is necessary to set Compressor unit on the
floor it should rest on Twelve (12) Inch by Twelve (12) Inch timbers as
indicated in (Figure 13). Do not permit the unit to rest directly upon
the Compressor housing or the Horns.
7. Remove four (4) bolts securing Compressor base to
8. Hoist Compressor unit and rest bases on timbers as
indicated in (Figure 13).
TO REMOVE ENGINE UNIT
1. Loosen idler adjusting pulley.
2. Remove belt from Engine power take-off pulley to
3. Disconnect and remove Battery ground cable.
4. Disconnect and remove cable from Battery to Startix.
5. Remove Battery.
6. Remove screws holding Engine water heater cable
out-let box to frame.
7. Disconnect Engine water heater cables and conduit
from circuit breaker box, place identification tags on wires, leave
wires in conduit, slide conduit under Engine and secure temporarily to
8. Remove Turntable slip ring cover.
9. Place identification tags on the four (4) wires
attached to the four (4) lower slip ring brush holders for proper
reinstallation. 10. Remove four (4) wires of wiring harness attached to
the four (4) lower slip ring brush holders.
11. Remove wiring harness assembly from frame cable
clips and fold back into Engine unit housing and temporarily secure to
12. Remove eight (8) bolts securing Engine unit base to Siren frame.
13. Attach slings through the four (4) hoisting holes in Engine unit
14. Hoist Engine unit.
TO REASSEMBLE THE SIREN, REVERSE ABOVE OPERATIONS.
If it is necessary to remove Compressor Horns for
installation purposes, the following procedure will apply.
Under no circumstances
should the whistle plates, under Horns, secured to Compressor housing by
two (2) cap bolts each, be disturbed, Horns must be removed and replaced
in groups of two, upper two, center two and lower two, do not to disturb
Horns outer end long spacer bolts. Chalk mark Horns for replacement
1. Remove the two (2) bolts securing the outer ends
of the two upper Horns to the two center Horns.
2. Remove the four (4) cap bolts per horn securing
the two upper Horns to the whistle plates, lift off Horns.
3. Repeat above operations on the center and lower
To reassemble Compressor Horns, reverse above operations.
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