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6.27 COMMUNICATIONS INTERFACE MODULE
INSTALLATION
CB1
Figure 6-36. Communications Interface
Units with communication interface module provision
have the required wiring installed. The provision wiring
kit (part number 76--00685--00), includes three
pre--addressed wires installed between the circuit
breaker and communication interface module locations.
These wires are to be connected to the module and
circuit breaker to allow the module to communicate over
the power system. To install the module, do the
following:
THE UNIT POWER PLUG MUST BE DIS-
CONNECTED TO REMOVE POWER FROM
CIRCUIT BREAKER CB1
a.. CB1 is connected to the power system, see wiring
schematic. Ensure that the unit power is off AND
that the unit power plug is disconnected.
b.. Open control box, see Figure 6-36 and remove low
voltage shield. Open high voltage shield.
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Installation
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c.. Remove the circuit breaker panel, with circuit
breaker, from the control box.
d.. Locate,
wires
CB23/CIA7 that have been tied back in the wire
harness. Remove the protective heat shrink from
the ends of the wires.
e.. Attach the three wires as addressed to the LOAD
side of the circuit breaker.
f.. Refit the circuit breaker panel.
g. Fit the new RMU into the unit.
h. Remove plugs CIA, CIB and CID from the wiring
harness and attach to the module.
.i. Replace the low voltage shield.
Table 6-6 Recommended Bolt Torque Values
BOLT DIA. THREADS
FREE SPINNING
#4
40
#6
32
#8
32
#10
24
1/4
20
5/16
18
3/8
16
7/16
14
1/2
13
9/16
12
5/8
11
3/4
10
NONFREE SPINNING (LOCKNUTS ETC.)
1/4
20
5/16
18
3/8
16
7/16
14
1/2
13
9/16
12
5/8
11
3/4
10
6-32
CB21/CIA3,
CB22/CIA5
TORQUE
MKG
5.2 in-lbs
0.05
9.6 in-lbs
0.11
20 in-lbs
0.23
23 in-lbs
0.26
75 in-lbs
0.86
11 ft-lbs
1.52
20 ft-lbs
2.76
31 ft-lbs
4.28
43 ft-lbs
5.94
57 ft-lbs
7.88
92 ft-lbs
12.72
124 ft-lbs
17.14
82.5 in-lbs
0.95
145.2 in-lbs
1.67
22.0 ft-lbs
3.04
34.1 ft-lbs
4.71
47.3 ft-lbs
6.54
62.7 ft-lbs
8.67
101.2 ft-lbs
13.99
136.4 ft-lbs
18.86
and
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