3–4 489 GENERATOR MANAGEMENT RELAY – INSTRUCTION MANUAL
CHAPTER 3: INSTALLATION
FIGURE 3–4: Bend Up Mounting Tabs
3.1.4 Unit Withdrawal and Insertion
TURN OFF CONTROL POWER BEFORE DRAWING OUT OR RE-INSERTING THE RELAY TO
PREVENT MALOPERATION!
If an attempt is made to install a unit into a non-matching case, the mechanical key
will prevent full insertion of the unit. Do not apply strong force in the following step or
damage may result.
To remove the unit from the case:
Z Open the cover by pulling the upper or lower corner of the right side,
which will rotate about the hinges on the left.
Z Release the locking latch, located below the locking handle, by pressing
upward on the latch with the tip of a screwdriver.
FIGURE 3–5: Press Latch to Disengage Handle
Courtesy of NationalSwitchgear.com
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