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Brake Solenoid (bells only -
refer to Figures 6, 16, and 19)
1. Turn off AC Power to the control panel at the
Fused Disconnect and open the cabinet door.
2. Turn off supply air to the cabinet and bleed off
pressure.
3. Disconnect wires for each solenoid from their
termination points on J3 of the breakout board
and TB4.
4. Remove pneumatic tubing from solenoid as-
sembly "IN" and "EXH" ports, as well as from each
solenoid
output port.
5. Remove two mounting screws from solenoid
mounting manifold and remove assembly from
unit.
6. Remove two mounting screws from solenoid
end bracket.
7. Remove suspect solenoid and O-rings and
Figure 16: Brake Solenoid Disassembly
replace.
8. Reinstall the two mounting screws in the sole-
noid end bracket.
9. Reinstall the solenoid manifold assembly in
reverse order of disassembly. Wiring connections
should be made as follows:
From
Wire ID
TB4-4D
COM
J3-25C
25C
TB4-5D
COM
J3-26C
26C
TB4-6D
COM
J3-27C
27C
TB4-4D
COM
J3-28C
28C
TB4-5D
COM
J3-29C
29C
TB4-6D
COM
J3-30C
30C
10. Secure cabinet door and restore supply air
and AC power.
To
SOL1-Bottom
SOL1-Top
SOL2-Bottom
SOL2-Top
SOL3-Bottom
SOL3-Top
SOL4-Bottom
SOL4-Top
SOL5-Bottom
SOL5-Top
SOL6-Bottom
SOL6-Top
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