Adjustment - Chamberlain MHS Installation Manual

WARNING
1
CAUTION
ADJUST THE LIMITS
Depress retaining plate
Retaining Plate
OPEN Limit Nut
AVERTISSEMENT
ATTENTION
SAFETY Limit
Switch
NOTE: When retaining plate is released, verify that the retaining plate is fully seated with the notches of the limit nut.
2
ADJUST THE CLUTCH
• Apply power to operator
• Turn clutch nut to release tension.
• Re-tighten nut until there is just enough
tension to permit smooth operation.
• Secure clutch nut with cotter pin.
ADVERTENCIA
PRECAUCIÓN
A D J U S T M E N T
Adjust OPEN limit
OPEN Limit Switch
CLOSE Limit Nut
CLOSE Limit Switch
To Tighten
To avoid SERIOUS personal INJURY or DEATH from
electrocution, disconnect electric power BEFORE moving limit
nuts or adjusting clutch nut.
Decrease Door
Travel
Increase Door
Travel
A
To Loosen
Clutch Nut
13
WARNING
WARNING WARNING
Adjust CLOSE limit
AVERTISSEMENT
AVERTISSEMENT
Decrease Door
Travel
ADVERTENCIA
ADVERTENCIA
Replace Cotterpin
B
Bend ends
of cotterpin
to secure
clutch nut
Increase Door
Travel