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2.4 Service Kit GM64108, Retrofit Timer
Replacement Kit for the Service
Entrance Rated 200 Amp Model RDT
See Figure 6 and Figure 7. Use Service Kit GM64108 to
replace an old style timer GM39330 with timer
GM64028. The service kit includes retrofit mounting
panel GM64074.
Tools Required:
D Electric drill with 1/4 in. chuck (minimum)
D 1/4 inch dia. drill bit
NOTICE
Foreign material contamination. Cover the transfer switch
during installation to keep dirt, grit, metal drill chips, and other
debris out of the components. Cover the solenoid mechanism
during installation. After installation, use the manual operating
handle to cycle the contactor to verify that it operates freely. Do
not use a screwdriver to force the contactor mechanism.
GM47597
1
1. Timer GM64028 with screws X-49-2 (qty. 4)
2. Mounting bracket GM64074 with nuts X-6210-1 (qty. 4)
2
Figure 6 Retrofit Timer Replacement Service Kit
GM64108 for Service Entrance-Rated 200
Amp Model RDT
1. Using the dimensions in Figure 7 or retrofit panel
GM64074 as a guide, mark four holes on the
existing mounting bracket at the locations of the
four studs on the retrofit panel. Cover the
components inside the enclosure to protect them
from metal drill chips. Drill four 1/4 inch diameter
holes through the existing mounting bracket at the
marked locations.
2. Align and insert the mounting studs on the retrofit
mounting bracket through the newly drilled holes
on the existing mounting bracket. Thread nuts
X-6210-1 onto the mounting studs to secure. See
Figure 6 and Figure 7.
3. Secure the timer to the four standoffs using the four
mounting screws X-49-2 provided with the kit.
4. Proceed to the Wiring Section for timer
connections.
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2
1
1
2
Figure 7 Retrofit Mounting Panel GM64074
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