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Commercial Door & Gate Operator Modifications

Power Transmission Modifications

65-52081-16

LiftMaster Dual Trolley Mod. #41 Chain for 16ft High Door Includes (2) 16' (Actual length 227") tracks and (1) Round Bar 240"

Provides drawbar-type operation on very wide (over 22 ft) standard lift sectional doors where a Side-mount op. is preferred over a drawbar op.
Includes 16ft tracks Round Bar 1" x 20'
For H/J/GH

65-92131

LiftMaster Dual Aux Trolley Mod. M15 #41 Chain for 12ft High Door

Provides drawbar-type operation on very wide (over 22 ft) standard lift sectional doors where a side-mount op. is preferred over a drawbar op.
Includes up to 12ft of tracks
For H/J/GH

MOD050N2

Manaras Friction Clutch Mod. #50 Chain 1-1/4 RGH

Installed directly on the output shaft of the operator.
Provides added protection by causing the clutch to slip when the door systems requires adnormal torque to be operated.
Includes sprocket for #50 chain
Operator mounting side must be specified
A spreader bar cannot be used in conjunction with this modification
This modification applies to RGH ops

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MOD050

Manaras Friction Clutch Mod. #50 Chain Gear Head Operators

Installed directly on the output shaft of the operator.
Provides added protection by causing the clutch to slip when the door systems requires adnormal torque to be operated.
Includes sprocket for #50 chain
Operator mounting side must be specified
A spreader bar cannot be used in conjunction with this modification
This modification applies to OGH and MGH operators

.......more details