REVERSE
ANGLE
SHIELD
SCREW
HOOK
EMERGENCY
RELEASE
LEVER AND
MOUNTING
BRACKET
VERTICAL
TRACK
BOWDEN
CABLE
D SHACKLE
VERTICAL
TRACK
MARK
AND DRILL
7/32” (5)
HOLES
MARK
AND DRILL
7/32” (5)
HOLES
2” (51)
BOWDEN
CABLE
CABLE
POST
OUTER
SHEATH
D
SHACKLE
REVERSE
ANGLE
SHIELD
EXTENSION
CHAIN
3”(76)
FOR DC7000CH
FIGURE 21
STEP 2
INSTALLING THE EMERGENCY RELEASE ASSEMBLY
Fasten
the cable post which is fastened to the outer sheath of the bowden cable
to the vertical track or track bracket, etc., with the two flat head 7/32" (5) screws
and nuts provided. (If fastened to the jamb, use optional 2 1/2”(64) long hex head
lag screws.) Allow at least 2" (51) slack to the outer sheath of the bowden cable.
Mark and drill two 7/32" (5) holes. See Figures 6a to 7b, 21
Place
screw hook in D-shackle at end of bowden cable or at the end of the
extension chain. See Figures 8a to 9b, 21
The
Emergency Release Lever
should be about 5’ - 6' (1830) above the floor. If
the Bowden cable is not long enough, a short piece of chain (optional) should be
used.
Mark
and drill two 7/32” (5) holes in the vertical track or track bracket, etc., with
the emergency release lever at an 85° angle, never less than 90°. Fasten
emergency release lever with mounting bracket using two 7/32” (5) flat head
screws and nuts provided. See Figures 8a to 9b, 20a, 20b, 21
The Bowden Cable
should be taut when the emergency release lever is at an 85°
angle. Adjust the screw hook as necessary, then tighten the lock nut. Push the
emergency release lever down. Drill new holes and remount if required.
When
the emergency release lever (RED) is pushed down, the drive belt
tensioning plate moves, tightening the drive belt on the motor and torsion shaft
pulley.
The garage door opener will not function without proper drive belt
tension. The computer cannot learn if drive belt slips.
Pushing the
emergency release lever up or down, disconnects or connects the garage door
opener to the garage door.
The garage door should be closed when
connecting or disconnecting the Emergency Release Lever. Following a
power outage etc, disconnect the power from the control box for 30
seconds. After reconnecting the power, open and close garage door two or
more complete cycles (door may run slow).
The computer should restore the
original open and close positions without a calibration reset. See Step 4 for
calibration reset
Note: The emergency release lever is first set at an 85° angle before
engaging, because the chain, cable, belt, etc. will slightly stretch
during the first few cycles. NEVER ALLOW THE EMERGENCY
RELEASE LEVER TO BE MORE THAN 90° WHEN DISENGAGED
WITH THE BOWDEN CABLE TAUT. CHECK DRIVE BELT FOR
PROPER TENSION AFTER ONE MONTH OF USE.
SEE FIGURES 8a to 9b, 20a, 20b, 21
FIGURE 20a 85°
COPYRIGHT © 2008 MARTIN DOOR
9
FIGURE 20b 90°
BOWDEN CABLE AND EMERGENCY RELEASE LEVER FASTENED
TO VERTICAL TRACK - REGULAR LIFT DOORS SEE PAGE 4 FOR
OTHER MOUNTING OPTIONS
ATTENTION! THE OPENER COMPUTER CANNOT LEARN
IF THE DRIVE BELT SLIPS
New Installation
After One Month
1/16” THREADS SHOWING
1/16” THREADS SHOWING
THE DRIVE BELT MAY NEED
TO BE TIGHTENED IF:
1. The opener does not
instantly turn off when
the door is fully open
or closed.
2. The door opener reverts
to continuous “slow
speed” learning mode.
3. The door can be easily
moved by hand with
the opener off.
4. The opener computer
loses its program.
5. The newly installed
opener has been used
for one month.
6. The door has been
opened and closed more
than 5000 times (cycles).
