C
HAPTER
3. M
AINTENANCE
P
ROCEDURES
3-43
02.9628.0010 CONFIDENTIAL
7-Oct-97
CAUTION
: Space for nutdriver is very limited, be careful not to break
diffuser panel during procedure.
c. Using 1/4 inch nutdriver, remove two 3-56 nylon insert stop
lock nuts that secure sensor to threaded standoffs and
remove sensor.
Step 4. Prepare and install replacement sensor.
a. At replacement sensor assembly, using needle-nosed pliers,
bend unused sensor lead to 45° angle.
b. Trim sensor assembly wires to 21 inches.
CAUTION
: To avoid poor connections, do not reuse MTA connector
from removed sensor on replacement sensor.
c. Using MTA crimper, crimp wires into new 4-pin MTA
connector using the following pinouts:
Pin Wire
4 Blue
3 Blue
2 N/C
1 N/C
d. Install strain relief cover on 4-pin connector. Using
permanent ink marker, mark strain relief DIFF.
Note
: During installation of sensor, make sure that sensor switch is
installed with microswitch pointing toward diffuser opening.
e. Install replacement sensor and re-install diffuser mechanism
by doing Steps 2 thru 5 in reverse.
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