Replacing Actuator - Electrolux T3900 Service Manual

40

Replacing actuator

Troubleshooting:
• Voltage of screw terminals B must be 18V AC,
fig. 1.
• Damper must be adjusted correctly, wide open
or shut.
Dismounting actuator
1. Disconnect the power to the dryer.
2. Loosen the Allen screws A. This releases the
damper shaft (Note! It is a 1/8" key, not mm key)
3. Dismount the 3 wires in the screw terminals
B (mark out the wiring positions).
4. Unscrew screw C.
The actuator is now dismountable.
Mounting new actuator
1. Mount the screw C
2. Turn the actuator as shown on fig. 3.
3. Stick the end of the shaft through the hub at
the Allen screws A.
4. Release the declutch lever and rotate the hub
until it is in the same position as shown on fig 3.
5. Insert the range stop pin in position D
(supplied with the actuator). (Do not insert the
range stop pin D until the hub position shown
on fig. 3 has been reached). The range stop pin
is clipped into its final position only after the pin
passes through both actuator plates. The range
stop pin should snap into position and not be
removable manually.
6. Tighten the Allen screws A into the damper
shaft with 5 Nm. It is possible to adjust the
damper opening by turning the manual declutch
lever (Note! When tightening the end of the
shaft the damper must be open).
To be continued on the following page
8
40. Heating system
1
CW COM
0
18V
B P10-6 P10-11 P10-5
2
A
5 Nm
Manual declutch lever
3
A
A
D
Service
manual
CCW
18V
B
C
B
487 03 29 41