Siemens SQM5 - Manual (Page 7)

SQM5… Reversing Actuators Technical Instructions
Document No. 155-517P25
July 9, 2007
Siemens Building Technologies, Inc. Page 7
Installation and
Operation
Instructions
SQM5… actuators are sometimes shipped without the shaft installed. To install the
selected shaft:
1. Loosen the two screws on the actuator cover corners. See Figure 2.
2. Lift the screws and raise the cover. See Figure 3.
Shaft Installation
EA0564R1
Figure 2.
EA0568R1
Figure 3.
3. Each shaft is supplied with two washers and a “C” clip. See Figure 4. Using
spreading pliers, remove the “C” clip and the washers from the shaft.
WASHERS ON
BOTH SIDES
OF THE BEARING
SHAFT KEY
EA0559R1
C-CLIP
INSERT END
KEY END
Figure 4.
4. Insert the “insert end” of the shaft into the “gear end” of the actuator.
5. Push the shaft until the “insert end” reaches just short of the brass bushing at the
other end of the actuator.
6. Put one of the washers on the insert end of the shaft. See Figure 5.
WASHERS
EA0569R1
Figure 5.
7. Line up the “shaft key” with the key slot on the “gear end” of the actuator and slide
the shaft until the “insert end” is completely through the brass bushing.
8. Place the second washer onto the “insert end” of the shaft. Using spreading pliers,
install the “C” clip.