LiftMaster K71-D1PH Guia De Inicio Rapido página 4

RELEASE CABLE INSTALLATION
FOR H MODEL OPERATORS ONLY
1. Locate the screw threads protruding through the brake mounting plate
opposite the brake solenoid. Mount the new cable clamp to the thread
that is second from the top and closest the motor. Secure in place with
the #10 fl ange nut provided.
2. For left handed operators:
Locate the release cable, cable sleeving and (2) black spring clamps.
Install the two spring clamps onto one end of the sleeving. Feed the
release cable from the side without the spring into the sleeving.
For right handed operators:
Locate the release cable and cable sleeving. Feed the release cable
from the side without the spring into the sleeving.
3. Take the release cable assembly and feed the release cable and
sleeving through the cable clamp installed in step 1. Once you get to
the brake release lever, feed only the release cable through the eyelet.
Secure in place by installing a fl atwasher #8 and a 1/16" cable stop
sleeve. Secure cable stop sleeve in place by crimping down on it with
pliers (Figure 3).
4. For left handed operators:
Locate the frame spacer that has the release chain going through it.
Take the end of the cable sleeving with the two spring clamps and slide
it down into the notch in the center of the bracket (be sure that one
spring clamp is on each side of bracket). Release the clamps and slide
the sleeving until at least 3" (7.6 cm) protrudes out past the bracket.
Secure in place by sliding the clamps as tight to the bracket as possible
(Figure 4).
For right handed operators:
Locate the second silver p-clip, identical to the p-clip used in step one.
Mount the clip as shown in fi gure Figure 3 using the provided bolt and
nut.
5. Pull release chain and release cable so that both are taut, being careful
not to engage either of the two. Connect the two together using the key
ring on the end of the spring.
TEST BRAKE RELEASE
After the installation is complete, pull the release chain to ensure the brake
disengages. If the brake does not fully disengage, it can be adjusted by
hooking the key ring further away from the operator. Move the key ring
one chain link at a time, testing each time (Figure 5).
ADJUSTMENT
1. Install the solenoid cover. The brake lever will contact the bumper pad
inside the cover.
2. Tighten both stop bolts (refer to image to the right) until the bolts
come into slight contact with the lever.
Secure the stop bolts in place by tightening the stop bolt nuts.
3. The spring bolt is pre-adjusted. Tighten or loosen the spring bolt to add
or release brake force as needed.
4. Connect power to the operator. Run the operator and ensure the brake
is working properly.
5. If the solenoid buzzes while running, loosen the spring bolt until the
buzzing is no longer present. A buzzing solenoid will cause it to fail
prematurely. Make any adjustment necessary.
RELEASE CABLE SLEEVE ROUTING
Left Handed
H Operator
FIGURE 4
Align cable and secure
with cable clamp and nut
FIGURE 3
Flatwasher #8
Release Cable
Cable Stop Sleeve
FIGURE 5
Spring Clamp
Cable Sleeving
Shims
Solenoid Cover
4
Right
Handed
H Operator
Cable Sleeving
Release Cable
To adjust tension on brake release,
move key ring away from operator
one link at a time. Be sure to test
after each adjustment.
Brake Pad
Brake Drum
Brake Lever
Stop Bolts
Stop Bolts
Nuts
Spring Bolt