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5
A) To replace the cover, while holding the cover
at an angle, gently move the top rear edge of
the cover over the top of the control unit and
match up the grooves where the top edge of
the cover meets the backplane. Gently push
the edge into place.
B) Lower the bottom of the cover until it is
secured in place.
Replacing System Modules
1
A)
To power down the control unit, pull out the
main circuit breakers on both carriers.
On a PARTNER II 220V system, move the
on/off switch to the "off" position ("O").
To remove the cover, place one hand on the
B)
handle on the bottom front of the cover and
place your other hand on the top of the cover.
C)
Gently pull the cover up from the bottom and tilt
it towards the top until it detaches from the
backplane.
2
Check the slack in the wires. If there is not
A)
enough slack to remove the module without
pulling the line and extension cords free,
label and disconnect the wires before
continuing with Step 2B.
B)
Place one hand on top of the module. With
your other hand, grip the plastic bracket on
the bottom front of the module, and use your
middle finger to hold down the locking tab just
below the bracket. Pull out the old module.
To insert the replacement, hold down the
C)
locking tab and align the dovetail guides on
the sides of the modules. Push slowly but
firmly until the module locks into place with
two snaps, and is attached to the rear of the
backplane and held in place by the locking
tab. Do not force the module. If it does not
insert easily, remove the module, clear any
obstruction, and reinsert it.
20
Equipment Upgrades
Main
Cicuit Breaker
Power
Jack
Handle
Locking
Tab
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