Rockwell Automation 1500SM User Manual

Bulletin 1500 Isolator Handle and
Isolator AssemblyAdjustment and
Maintainance

Instructions

Refer to the contactor publication provided under this tab for an illustration and
general instructions on the interlock mechanism.

The two drawings provided we to be used by the customer to identify major
components referenced in the following instructions. They may or may not
relate directly to the assemblies supplied on the customer’s order.

Lubrication

Electrically Conductive Part Lubrication:

(Using Aeroshell 7 or equivalent NO-OX-ID “a special” Dearborn Chemical)

• lubricate switch plates (Item 2 on 80098-595)

• lubricate grounding pins located on ground bar (Item 1 on 80098-595)

• lubricate back terminals (Item 3 on 80098-595)

Mechanical Part and Linkage Lubrication:

(Using Mmolykote Dow Corning 55m silicon grease)

• lubricate isolator shaft support molding (both ends) to allow smooth
rotation of the shaft (Item 7 on 80098-595)

• lubricate isolator shutter lever assembly pin which controls moveable
shutter (Item 17 on 80098-595)

Isolation Switch Shutter Lubrication:

(Using Chesterton Dry Lube Spray NR677)

• spray between the two shutter surfaces of the moveable and stationary

shutter (Items 5 and 6 on 80098-595)

Instructions • Adjustment and Maintainance

Bulletin 1500 Isolator Assembly

Specific Information on
Isolator Adjustment

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.

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