Rockwell Automation 1500SM BULL 1500-ISOLATOR ADJ MAINT - Manual (Page 2)

Instructions • Adjustment and Maintainance
Bulletin 1500 Isolator Assembly
2
Essentially Two Adjustments Exist:
•
rod assembly (Item 1 on 80098-596)
• stop bracket (Item 3 on 80098-596)
Rod Assembly (Refer to Item 1 80098-596):
When the switch handle is in the open position the isolating switch blades
should touch or be within 1/16" of touching the ground pin on item 1 80098-595.
In the “on” position, blades should fully engage the back terminal. Adjust rod
to optimize operation (on to off, off to on).
Stop Bracket (Refer to Item 3 on 80098-596):
The distance between item 4 and 5 should be between 0.045" to 0.060".
Torque item 7 to 75 inch pounds and apply Locktite 290 to the screws.
(Allen-Bradley gauge CTR 9145 may be used for this purpose)
Isolator Switch Handle Mechanism (Refer to 80098-596)
• operation of switch with door closed from either “on” or “off’ position
should drop out contactor from test or run position
• should not be able to open door to power cell unless the isolator is
opened and grounded. Verify pin on isolator handle has not been broken
off as this could allow door to be opened while isolator is closed.
• isolator should be prevented from operating from “off” to “on” position
while door is open.
Specific Information on
Isolator Adjustment