LiftMaster 41A3261-1 Instrucciones página 2

TYPE 1
3.1
TIPO 1
3.1i
3.1b
TYPE 2
3.2
TIPO 2
3.2c 3.2g
4.1
4.1a
4.1d
4.2
4.2c
4.2a
5
5a
3.1g
3.1c
Top view of capacitor
Vue supérieure du condensateur
Vista superior del capacitor
3.1i
3.1f
3.1a
3.1d
3.1e
3.2g
3.2e
3.2d
Top view of capacitor
3.2a
Vue supérieure du condensateur
Vista superior del capacitor
4.1b
4.1c
4.1e
4.2d
4.2b
5b
3. Disassemble opener
3.1h TYPE 1 - Limit switch (3.1)
_ Remove the retainer clip and limit drive gear (3.1a).
_ Remove the limit switch assembly (3.1b) by squeezing the sides just
below the motor bracket near the drive gear (3.1c).
_ Allow the limit switch assembly to hang by the wires.
_ Unplug the wire harness (3.1d) from the RPM sensor (3.1e) and
remove the RPM sensor.
_ Disconnect the 3 wires (3.1f) leading from the motor (RED, WHITE,
BLUE), noting their position. Keep same color wires from capacitor
together for reassembly: RED/RED (3.1g), BLUE/BLUE (3.1h).
_ Remove the 4 screws (3.1i) fastening the motor bracket to the
chassis. Support motor before removing final screw. Place motor/
bracket assembly aside.
TYPE 2 - Travel module (3.2)
_ Remove the retainer clip from the travel module (3.2a).
_ Unplug the wire harness (3.2b) from the travel module.
_ Remove the travel module using the tip of a screwdriver to gently
pry the travel module from the motor bracket (3.2c).
_ Disconnect the 3 wires (3.2d) leading from the motor (RED, WHITE,
BLUE), noting their position. Keep same color wires from capacitor
together for reassembly: RED/RED (3.2e), BLUE/BLUE (3.2f).
_ Remove the 4 screws (3.2g) fastening the motor bracket to the
chassis. Support motor before removing final screw. Place motor/
3.2b
bracket assembly aside.
3.2f
4. Removal and replacement of the worm gear
For belt drive (MVIS) (4.1)
_ Separate bracket from motor by removing the 3 screws (4.1a).
_ Use a 5/32" punch and hammer to drive roll pin (4.1b) from motor
shaft (4.1c) and slide worm gear (4.1d) off.
_ Remove "O" ring, "C" ring and spacer (4.1e).
_ Replace with new parts in proper sequence.
_ Reassemble the motor and bracket assembly.
For all other models (4.2)
_ Remove interrupter cup, collar, washers, and bearing (4.2a) from
motor shaft (4.2b) and set aside in proper sequence for replacement.
_ Separate bracket from motor by removing the 3 nuts (4.2c).
_ Remove worm gear(4.2d) from motor shaft and replace with new,
fitting the slots in the worm gear over roll pin on shaft.
_ Replace with new parts in proper sequence. Replace only those parts
used on your model.
_ Reassemble the motor and bracket assembly.
5. Removal and replacement of the sprocket assembly
_ Remove the 3 screws (5a) from under the chassis and lift out entire
assembly by sprocket.
_ Apply grease generously to each tooth on new drive gear (5b) and
worm gear.
_ Refasten assembly to opener chassis.
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