idrive™ Retro-fit Installation
Step 1: Extension Spring Relief
Raise the door to the fully open position and clamp locking pliers to the back legs of both vertical tracks, below the bottom rollers to prevent the door from falling (see Fig. 1). By opening the door, you release most of the spring tension. Carefully unfasten the
WARNING COUNTERBALANCE SPRING TENSION MUST BE RELIEVED BEFORE RE- MOVING ANY HARDWARE. A POWERFUL SPRING RELEASING IT’S ENERGY SUDDENLY CAN CAUSE SEVERE, EVEN FATAL INJURY.
NOTE: Only remove springs when door is in the up position and visegrip pliers are attached to the
track. |
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| CAREFULLY REMOVE THE “S” HOOK AND COUNTERBALANCE |
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| FIG. 1 | ||
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| CABLE (REPEAT FOR THE OTHER SIDE) | |
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SAFETY |
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CABLE |
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(LEAVE IN- |
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STALLED) |
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BOTTOM |
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ROLLER |
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LOCKING | ATTACH LOCKING PLIERS TO BACK LEG OF | |
PLIERS | TRACK BELOW ROLLER (BOTH SIDES) | |
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Step 2: Remove Front Sheave | FRONT CABLE | |
SHEAVE | ||
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Disassemble the existing front cable sheaves. Typi- | BOTTOM DOOR | |
cally the front sheave is secured with a bolt and nut to | SECTION | |
the horizontal angle. Repeat for other side. (NOTE: | NUT | |
It may be helpful to refer to the original garage |
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door’s owner’s manual for removing parts from | HORIZONTAL | |
the original door.) | ||
ANGLE | ||
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Extension idrive™ Installation
Step 3: Lifting Cable Loop |
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| PULL LIFTING CABLE | CRIMP SLEEVE | |
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| TIGHT SNUGGING THE |
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Locate the bottom bracket at the lower edge of the bottom |
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| CABLE TO SIZE AROUND |
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section. The lift cable will be attached to the brackets |
| THE FIXTURE |
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milford pin. Measure the diameter of the head of the pin |
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and record the measurement. Locate the drum assemblies |
| LOOP |
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provided with the kit. They will have a cable attached |
| TOOL |
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with a loop formed on the end of the cable. |
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| BRACKET | |
Locate the cable loop tool and install the loop over the |
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shape that corresponds to the milford pin head size you |
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measured. Use the larger size if the milford pin head size |
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is greater than or equal to 1/2”, and the smaller size if the |
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diameter is less than 1/2”. With the cable installed onto |
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the tool, pull the cable tight, forming it around the loop |
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tool. Remove the cable from the tool while holding the |
| MILFORD PIN |
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cable so it does not slip in the crimp sleeve. Place the |
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crimp sleeve on a hard surface and using a hammer, hit |
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the crimp sleeve until it is squeezed tightly around the cable. Verify the loop has been set securely by pulling on the loop. Repeat for the other cable. Set the drum/cable assemblies aside until needed.
WARNING FAILURE TO CRIMP SLEEVE SECURELY TO CABLE, CAN CAUSE CABLE TO SLIP OUT, ALLOWING DOOR TO FALL DURING OPERATION, RESULTING IN SEVERE OR FATAL INJURY.
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