seated in the first and second grooves of the cable drum. Pull on the end of the cable to remove all cable slack.
Snug the set screw and then tighten an additional 1-1/2 turns. Measure approximately 6” of cable and cut off excess cable. Insert end of the cable into the hole of cable drum. Repeat for left hand cable drum assembly.
IMPORTANT: Ensure the counterbalance lift cable is aligned and seated in the first and second grooves of the cable drum prior to winding springs.
NOTE: Illustration shows the right hand cable drum assembly, left hand cable drum assembly is symmetrically opposite.
| First and | |
| second grooves | |
| Cam peak | |
| pointing straight up | |
| Cut cable here | |
TorqueMaster® | | Set screw |
6” | |
spring tube | |
| |
| Insert | |
| cable here | Counterbalance |
| | lift cable |
21 | Winding Springs | |
Tools Required: Ratchet wrench, 5/8” Socket, 3” Socket extension, Pliers / Wire |
cutters, Flat tip screwdriver, Step ladder | |
WarningARNING
It is recommended that leather gloves be worn while winding springs. Failure to wear gloves may cause injury to hands.
Double check to ensure the counterbalance lift cable is aligned in the first and second grooves of the cable drum, see step Lift Cable Adjustments. There are two methods for counting the spring turns as you wind. One method is to identify the black tooth on the ratchet wheel inside of the end bracket. When the wheel makes one revolution and the tooth returns to its starting point, one turn has been made. The other method is to make a mark on the winding shaft (or socket) and end bracket, and count your turns in this manner.
Starting on the right hand side, turn the pawl knob on the end bracket to the upper position. Using a ratchet wrench with a 5/8” socket and a 3” extension, wind the spring by rotating the winding shaft counter clockwise, while watching either the black tooth on the ratchet wheel or the mark on the winding shaft.
NOTE: A 3” extension is recommended for added clearance from the horizontal track angle.
IMPORTANT: Pawl knob must be in upper position to add / remove required number of spring turns.
After 2 to 3 turns, remove the ratchet wrench and adjust the counterbalance lift cable on the left side. Ensure counterbalance lift cables are in the first and second grooves of the cable drums, as shown in step Lift Cable Adjustments.
NOTE: Single spring applications require no spring winding on the left hand side, but lift cable tension needs to be adjusted.
IMPORTANT: Counterbalance lift cable tension must be equal on both sides prior to fully winding springs.
See the Winding Spring Turn Chart for the required number of winding turns: For single spring applications:
Return to the right hand end bracket and continue winding the spring to the required number of turns for your door. Place pawl knob in lower position.
For double spring applications:
Either use the black tooth on the ratchet wheel for winding reference or place a mark on the winding shaft and end bracket. Place the ratchet wrench with 5/8” socket and a 3” extension onto the left hand winding shaft end. To wind the spring, rotate the winding shaft clockwise, while watching the black tooth on the ratchet wheel or the mark on the winding shaft. Rotate the winding shaft to the required number of winding turns for your door. Then return to the right hand side and wind the right hand spring to the required number of turns. Place pawl knob in lower position on both sides.
Important: Mark the number of spring turns onto the end bracket warning tag.
NOTE: Since total turns to balance door can deviate from winding spring turn chart values by ± 1/2 turn, adjustments to the recommended number of turns may be required after rear back hangs are installed.
End bracket | | | |
Marks | | | Pawl knob in |
| | |
| | Ratchet | lower position |
| | |
| 5/8” | wrench | |
| | |
Winding | Socket | | |
| | |
shaft | | | |
Black tooth | | | |
on ratchet | | | Pawl knob in |
wheel | | | upper position |
Mark the number of | | 3” | |
spring turns onto the | | |
| Extension | |
end bracket warning tag | | |
| | |
WINDING SPRING TURN CHART | | | |
DOOR HEIGHT | | SPRING TURNS | |
6’-0” | | 14 | |
6’-3” | | 14-1/2 | |
6’-5” | | 15 | |
6’-6” | | 15 | |
6’-8” | | 15-1/2 | |
6’-9” | | 15-1/2 | |
7’-0” | | 16 | |
7’-3” | | 16-1/2 | |
7’-6” | | 17 | |
7’-9” | | 17-1/2 | |
8’-0” | | 18 | |
Securing Drum Wraps | |
22 | Tools Required: Step ladder |
|
NOTE: If you don’t have drum wraps, then skip this step. Refer to Package Contents / Parts Breakdown, to determine if you have drum wraps.
Starting on the left hand side, position the left hand drum wrap, as shown. Slide the left hand drum wrap over the cable drum assembly.
IMPORTANT: Pull the counterbalance lift cable away from the header to clear the latch, while simultaneously sliding the drum wrap against the last rib until the three catches engage the 3rd rib.
Secure the hinge latch by rotating upward until a distinct snap is felt. Confirm the catch is fully engaged by lightly tugging on it. Repeat the same process for right hand side.
Last rib | Drum wrap | Cable | 3 catches | 3rd rib |
| | drum | | |
| | | | 3rd rib |
Counterbalance | | | | |
lift cable. Pull to | | | Re-engage | |
clear latch | | | |
Hinged latch | | hinged latch | |
| | |
23 | Rear Back Hangs |
Tools Required: Ratchet wrench, Socket: 1/2”, 5/8”, Wrench: 1/2”, 5/8”, (2) Vice |
clamps, Tape measure, Level, Hammer, Step Ladder |
IMPORTANT: Hold the door down to prevent it from rising unexpectedly in the event the spring(s) was over-wound and cautiously remove vice clamps from vertical tracks.
Raise the door until the top section and half of the next section are in the horizontal track radius. Do not raise door any further since rear of horizontal tracks are not yet supported.
WarningARNING
Raising door further can result in door falling and cause severe or fatal injury.
Clamp a pair of vice clamps onto the vertical tracks just above the second track roller on one side, and just below the second track roller on the other side. This will prevent the door from raising or lowering while installing the rear back hangs.
Using the chart (Perforated Angle Gauge Weight Limitations) below, use the appropriate