Installation Instructions

Document No. A6V10549963

January 13, 2016

Siemens Industry, Inc. Page 3 of 7

Figure 2. Guide Piece Removal (Shaft Size not 1/2-

Inch).

2. Do one of the following:

– If the shaft diameter measures 3/8-inch (8 to10

mm), install the metal insert into the actuator hub

(Figure 3).

Figure 3. Installing Metal INsert for 3/8-inch Shafts.

– If the shaft diameter measures 5/8-inch (15 to17

mm), no insert is necessary.

CAUTION! The metal insert MUST be used if the

damper shaft diameter equals 3/8-inch.

 Using pliers if necessary, rotate the damper

shaft counterclockwise until it fully stops. Mark

the end of the shaft for reference if it is not

already marked.

3. Confirm that the actuator’s adjustment lever is

also in counterclockwise position; adjust if

necessary (Figure 4).

CAUTION! The DXR circuit board and the

actuator have little clearance between them. If

the actuator is secured with its adjustment lever

in clockwise position (instead of

counterclockwise as called for in Step 4), the

slight side-to-side movement of the actuator

during normal operation will be toward the circuit

board instead of away from it. If the actuator

impacts the circuit board, equipment damage

may result.

Figure 4. Actuator Initial Position.

4. Position the DXR Actuator Package onto the

damper shaft.