Install Instructions

Siemens Energy & Automation, Inc. 1000 McKee Street Batavia, Illinois 60510
75-HEF14
Page 2
February, 2000
Supersedes July, 1985
Instructions
Disassembly - Continued
4. The movable contact bar includes a raised area in the center
for spring seating or for aligning the spring retainer. Remove
and discard the worn movable contact bar, spring and spring
retainer observing the following:
a. For contact without a spring retainer, compress the
spring and remove it from the cross arm. Remove the
movable contact bar.
b. For contact with a spring retainer, pry the spring retainer
away from the movable contact bar and slide the bar
from the cross arm. Compress the spring against the
spring retainer (toward the contact board) and tip the
spring out of the cross arm. Remove the spring retainer
from the cross arm.
5. Remove the worn line side stationary contact from the con-
tact board by partially backing out the self-tapping screw
that secures the contact. Keep the screw in the contact to
avoid any problems that losing the screw in the equipment
might cause. If the worn contact includes a line side power
take off lug, remove the lug from the contact and install the
lug on the new line side contact. Discard the worn contact.
6. Remove the worn load side stationary contact from the con-
tact board as in step 5 above. Discard the contact.
Reassembly
Use all parts furnished in the kit. Factory recommended assem-
bly torques are as follows:
Assembly Item
Minimum Torque
(Inch-pounds)
Stationary contact mounting screw C 14
Power pole line and load terminal screws 18
Overload relay to enclosure or
mounting panel mounting screw(s) 18
1. Secure the load side stationary contact B to the contact
board with self-tapping screw C. The contact mounting hole
is sized for the screw.
2. Secure the line side stationary contact A to the contact
board with self-tapping screw C.
3. Install movable contact bar F observing the following:
a. For contact without a spring retainer, install the movable
contact bar F in the cross arm. Compress spring D and,
while holding the movable contact bar toward the sta-
tionary contacts, insert the spring in the cross arm.
b. For contact with a spring retainer, insert spring retainer E
in the cross arm with the retainer edges facing away
from the contact board as shown in the illustration.
Compress spring D with tweezers or similar tool. While
holding spring retainer E toward the contact board side
of the cross arm, insert spring D in the cross arm.
Compress the spring with the spring retainer and slide
the properly oriented movable contact bar F into the
cross arm.
4. Manually operate the controller cross arm and check for
proper spring seating and contact mating.
5. To assemble the overload relay to the contactor, reverse the
removal procedures.
6. Secure the removed terminal clamps and lugs, as applicable,
to the contactor line and load terminals. Connect any
removed wires.
7. Secure the contact board cover to the controller.
The interlock pole contact kit is not inter-
changeable with the power pole contact kit.
Using an interlock pole contact on a power
pole will result in damage to the controller.