BIRD TERMALINE 8745 Series, Инструкция

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Maintenance
16
Removing the Front Connector Assembly
Note:
This portion of the load unit consists of the inner conductor
[11] or [13] and the outer conductor [12] or [14], respectively.
1. Remove the six screws [16] at the front of the housing flange.
2. Remove the front connector assembly and inner conductor.
3. Replace the O-ring seal, if needed.
Note:
Do not attempt further disassembly of this part. Return to
the factory for repair, if necessary; consult the company.
Note:
Procurement and use of the accessory protective control system
(comprising the water flow switch and control box) is optional. Consider
the instructions and replaceable parts described in Front Connector
Assembly, Water Flow Switch and Time Delay only when applicable.
Replacing the Water Flow Switch
The Water Flow Switch, P/N 5-898-6, should be checked and cleaned of any
accumulated dirt on scale that might impede free movement of the control
gate in the switch. This should be done after several months use, or if other-
wise indicated. This component is non-repairable; if found defective it must be
replaced. For replacement proceed as follows:
1. Ensure the following is shut off.
z
RF power
z
115/230 VAC
z
Transmitter interlock supply
2. Disconnect the water flow switch leads at the control box.
3. Remove the defective switch.
4. Replace with new unit.
5. Connect the flow switch leads to terminals 3 and S.
6. Perform preoperational checkout. See “Pre-Operational Checkout” on page 6.
Replacing Time Delay Relay
Note:
The Relay Cartridge, P/N 5-1664 or 5-1665, in the control
box cannot be disassembled or repaired in the field. A faulty unit
should simply be replaced according to the following procedure:
1. Ensure RF power, 115/234 VAC, and transmitter inlerlock supply are turned off.
2. Open the door of the control box by turning slotted screw head one quarter
turn.
3. Loosen the 8-32 pan head screw at the top of the relay clamp, P/N 8630-193,
then press legs in slightly lo release the retaining prongs of the clamp.
4. Pull the delay relay cartridge straight out of the socket.
5. Reverse the procedure above to replace the relay.
6. Rotate the cartridge carefully for alignmenl of the center Post nub in the
socket while inserting the relay.
Note:
The socket is an ordinary octal type.