INSTALLATION NOTICE: If installing the idrive® opener on a door currently installed with Torquemaster® Plus counterbalance system,
start the installation with Step: R1 below. For Torquemaster® counterbalance system, start the installation with Step R1 on page 3.
Retro-Fit TorqueMaster® Plus
R1 |
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| |
Drum Wrap & End Bracket | |||
Removal | |||
Tools Needed: | IMPORTANT! RIGHT AND LEFT HAND IS | ||
ALWAYS DETERMINED FROM INSIDE THE | |||
Step Ladder | BUILDING LOOKING OUT. | ||
NOTE: Warning tag removed for illustration | |||
| |||
Flat Blade | clarity. | ||
Starting on the right hand side, unlock the | |||
Screwdriver | |||
drum wraps from the cable drums. | |||
| hinged latch. PULL COUNTERBALANCE | ||
| CABLE SLIGHTLY OUTWARD FROM THE | ||
| JAMB to allow hinged latch to pass to the left | ||
| of the cable. Pry radially outward with a small | ||
| screwdriver on the three tabs (one at a time) | ||
| while maintaining pressure on drum wrap in | ||
| direction shown to remove. Repeat drum wrap | ||
| removal for left side. | ||
Before
Tab x 3
Drum Wrap
Hinged Latch 
Drum
Counterbalance
Cable
After
Hinged Latch
Counterbalance
Cable
R2
Tools Needed:
Ratchet Wrench
5/8” Socket
3” Extension
Gloves
Step Ladder
Spring Tension Removal
Counterbalance spring tension must be relieved before removing any hardware.
WARNING
A POWERFUL SPRING RELEASING ITS ENERGY SUDDENLY CAN CAUSE SEVERE INJURY.
Starting with the right hand side, ensure pawl knob is in upper position. Place a ratchet with a 5/8” socket on the winding shaft.
NOTE: A 3” extension is also recommended for added clearance from the horizontal
TORQUEMASTER® PLUS END BRACKET
(Right hand shown, left hand bracket symmetrically opposite)
END BRACKET
END BRACKET
PAWL KNOB
IN UPPER POSITION
Ratchet Wheel
PAWL KNOB
IN LOWER POSITION
angle.
To remove spring tension, ensure the ratchet and socket is set so that it will add tension (counter clockwise) on the right hand side and (clockwise) on the left hand side. Rotate ratchet to relieve pressure between the pawl and the ratchet wheel. Push in on the pawl to allow the ratchet wheel teeth to pass by.
NOTE: In the event of a broken spring, it might not be necessary to unwind spring(s).
IMPORTANT! BE PREPARED TO HOLD THE FULL TENSION OF THE SPRING.
Gently let the ratchet rotate upward, while watching the number of teeth on the ratchet wheel pass by the pawl. Remove 3/10 of a turn (watch the 3 teeth of the ratchet wheel pass the pawl). Release the pawl to allow it to engage with the ratchet wheel. Repeat this process until all spring tension has been removed from spring(s). Cables should be loose and the torque tube should be free to rotate in either direction.
IMPORTANT! SPRING(S) ARE FULLY UNWOUND WHEN COUNTERBALANCE CABLES HAVE NO TENSION.
IMPORTANT! DO NOT USE AN IMPACT GUN TO UNWIND THE SPRINGS.
Pawl Knob In Upper Position | Pawl Knob In Lower Position | |
| RATCHET PAWL | RATCHET WHEEL |
Marks |
|
| Ratchet |
| PAWL Pushing in on Pawl Causes |
| Ratchet Pawl to move away |
Pawl | from Ratchet Wheel, allowing |
| wheel teeth to pass by. |
RIGHT HAND SIDE | 3” Extension |
| |
| Marks |
Ratchet |
|
| Pawl |
3” Extension | LEFT HAND SIDE |
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