15
Jackshaft (JDC) and Hoist (JHDC)
Operators
Carton Inventory
Your door operator is packaged in one carton which contains the motor unit and the parts illustrated below. If anything
is missing, carefully check the packing material.
Description
• Powerhead assembly
• Installation manual and caution labels
• Hardware box (includes fasteners)
• Floor level Wall Controller with LCD display to program and setup the
door and operator system
• LiftMaster Monitored Entrapment Protection, CPS-U
• Hoist hand chain (JHDC models only)
• Sash chain (JHDC models only)
• Door/operator drive chain
JDC Operators also include:
• 700 operators - (2) 4.5 AH batteries and battery mounting tray
• 1200 operators - (2) 4.5 AH batteries and battery mounting tray
• 2200 operators - (2) 7AH batteries and battery mounting tray
NOTE: The new DC logic board includes inputs for CTM (Cable Tension Monitor). Although, not required to operate the
unit, it is highly recommended to include Cable Tension Monitors (part #s: K41-0157-000 and K41-0156-000) in all
Jackshaft installations. The Cable Tension Monitor detects cable slack and will stop and reverse the door.
NOTE: Pusher springs should be used with the door system to help get the door moving in the Close direction. For
certain types of doors, such as standard lift, angled track may also be recommended. Please check with the door
manufacturer for details.
Door Sprockets
Door Sprocket (with setscrew and keyway) will now be sold separately via accessory kits. Please see the guide below for
the correct Door Sprocket kit for your door type and installation.
• Kit :[XXX] For Sectional Doors include 18 tooth sprocket [XXX-verify]
• Kit: [XXX] For Rolling Steel Doors include [XXX- what size sprocket].
• Kit: [XXX]
• Kit: [XXX]
• Kit: [XXX]
• Kit: [XXX]
• Kit: [XXX]
• Kit: [XXX]
• Kit: [XXX]
• Kit: [XXX]
WARNING
To prevent possible SERIOUS
INJURY, DEATH, or uncontrolled
descent of the door:
• When installing a jackshaft-
style operator on a sectional
door, additional precautions
MUST be taken to assure that
proper door cable tension is
present throughout the ENTIRE
travel of the door.
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