Andco Actuators Linear Electric Actuator 7302S

Disconnect all electrical power to the actuator before disassembly

Wear approved Personnel Protective Equipment (PPE) for the site

Keep hands clear of internal moving parts during operation

Ensure service personnel are licensed/trained and authorized

Use assistance when moving or lifting to avoid injury

Shift the declutch lever (37) to the manual position

Is the drive shaft with gear teeth machined into it present?

Remove the brake cover to expose square head wear adjusting screws (15H) and expose the magnetic air gap “A”.

Measure the air gap “A” using 3/8” to 1/2” wide feeler gauge at the center of the magnet.

Select the model for adjustment

Turn the two square head wear adjusting screws until the air gap “A” measures the specified range for the selected model.

Ensure brakes are not adjusted for higher torques to prevent premature coil burnout.

Ensure no motor control cards are present

Select the voltage setting for the appropriate motor voltage as indicated on nameplate

Set the test equipment to the selected voltage

Contact each test point shown on wiring diagram with the test equipment ground wire contacting the gear case plate

Verify the actuator withstands the applied voltage for one second per test point without breakdown

Note: Motor power circuits are to be tested based on the motor voltage (AC). Dielectric strength tests may be made by applying a direct current (DC) voltage instead of an alternative current (AC) voltage, provided that the voltage used is 1.414 times the values specified above. See wiring diagram for test points.

Disconnect all electrical power to the actuator

Wear approved Personnel Protective Equipment (PPE)

Be aware of internal moving parts and pinch point hazards

Ensure service personnel are licensed/trained and authorized

Use assistance when moving or lifting heavy components

Disconnect electrical power leads to the motor

Disconnect all electrical power to actuator

Remove the position limit switch compartment cover (51)

Remove the motor pipe plug (100)

Rotate the shaft clockwise to extend the actuator shaft

Are the rotor (#36-1) contact fingers closed?

Adjust rotor (#36-1) contact fingers

Clevis Pin Retraction and Second Rotor Adjustment