ACA CD-107 Kurulum, Çalıştırma, Bakım ve Parça Kılavuzu - Sayfa 9

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PRE-OPERATION CHECKS (Mechanical)

A - Gear reducer lubricant level.

B - Lubricant on gear reducer drive chain.

C - Final check all bolted or assembled components.

PRELIMINARY TEST

Prior to final wiring connection of Radio Decoder, Timer or

Telephone Relays and with power connected to the starter

controls, a check for proper motor rotation MUST be made.

Have one person observe the open siren air intake.

Momentarily energize the motor through the magnetic

starter contacts.

counterclockwise. If rotation is not correct, interchange line

one and line three on a three-phase siren.

LUBRICATION (See Figures 10 and 11)

DISCONNECT POWER FIRST.

A self-aligning ball bearing is installed above the collector ring

assembly. This bearing is sealed for lifetime use and no additional

lubrication is necessary.

Another self-aligning ball bearing is installed under the base in the

center of the assembly. This bearing has an external grease fitting and

has been lubricated at the factory so no additional lubricant is necessary

for one year. When greased, one shot of the grease gun is sufficient. If

excess flows from the seals, remove it from inside the base with a rag.

Use Molub Alloy #171 graphite grease manufactured by the Imperial

Oil and Grease Co. or equivalent.

Oil in the gear reducer should be changed each year. Use high quality

SAE IOW-30 Motor oil and fill to oil level hole.

Before operating, check drive chain under circular base for protective

grease coating. If needed, grease with Molub Alloy #171 graphite

grease or equivalent. Do not over-grease. Check the setscrews in the

sprockets, collars and couplings when greasing the chain.

Siren motor rotation should be

MAINTENANCE INSTRUCTIONS

NOTE

FINAL WIRING AND TESTING (See Figures 11 through 14

and refer to wiring diagrams)

Connect the signal source wires to the magnetic starter control cabinet

terminal block. Proceed to test the entire operation of the siren using

the radio controls, timer or telephone system.

WEAR EAR PROTECTION. With the installation complete, the

siren SHOULD NOT BE ALLOWED TO SOUND FOR ANY

PROLONGED PERIOD (more than 30 seconds) while any person is

on the same level as the horn. Ear guards must be worn by personnel

on the same level as the horn as a precaution at all times during testing

or possible remote starting.

OPERATION

Actuation and control may be by means of remote direct-wired lines,

telephone lines and relays or special radio controls. The activating

and timing equipment, to be provided at time of installation, must be

specified when ordering the siren. This manual will not attempt to

define the exact operational procedure of the siren.

ADJUSTING DRIVE CHAIN TENSION

The rotation drive assembly is factory adjusted to provide slippage as a

precaution against possible component damage if a physical force prevents the

siren assembly from rotating. A torque adjustment is provided. (See Figure

11.) A quick torque check may be made by grasping the upper siren assembly

with both hands and attempting to rotate. Considerable force should be

required to rotate manually. If adjustment is necessary, turn the torque

adjustment nut to increase compression of spring.

CLEANING COLLECTOR RINGS

If the siren is inoperative and all electrical connections such as fuses,

overloads in the magnetic starter and circuits have been checked, inspect the

collector rings in the rotation assembly by removing the fiberglass hood. (See

Figure 11.)

Make certain the electrical power is off.

If the collector rings are discolored or have a dirt or oil film coating, polish

each ring with a fine crocus cloth. This can be accomplished by polishing the

portion of the ring near the opening, and then rotating the assembly by hand

far enough to expose another portion of the collector ring. Also check the

triggers on the brush holders to see if there is sufficient pressure on each brush

to maintain contact.

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CAUTION