Adjust up and down limits, Adjustment, Step1 – Craftsman 139.535006 User Manual

Page 18

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Adjustment

STEP1

Adjust UP and DOWN Limits

The limit adjustment screws are located on the left side panel of the opener chassis as shown LI MIT ADJUSTMENT
settings regulate the points at which the door will stop when moving up or down

NOTE: Door STOPS in UP direction if anything interferes with door travel. Door REVERSES in DOWN direc

tion if anything interferes with door travel (including binding or unbalanced doors).

PROCEDURE:

To operate opener, press Wall Con

trol Push Button or transmitter push button. Run the
opener through a COMPLETE TRAVEL CYCLE. No
adjustments are needed when the door opens and
closes completely and does not reverse uninten
tionally in down direction.
The following char t outlines adjustment procedures.

Run opener through a COMPLETE TRAVEL CYCLE

AFTER EACH ADJUSTMENT.

NOTE: REPEATED

OPERATION OFTHE OPEN ER DURING ADJUST

MENT PROCEDURES MAY CAUSE THE MOTOR

TO OVERHEATANDSHUTOFF. SIMPLYWA1T15

MINUTES AND TRY AGAIN.

Read the chart care

fully before proceeding to Step

Pg. 19 Use a screw

driver to make limit adjustments

Adjustmen! Label

LliVilT ADJUSTMENT CHART

IF DOOR DOES NOT
OPEN COMPLETELY
BUT OPENS AT
LEAST FIVE FEET

Increase UP travel by turning UP LIMIT adjustment screw in
clockwise direction as shown on label One turn equals 2
Inches of travel
If door doesn't open at least 5 feet, adjust OPEN FORCE as
explained in Step 2, Page 19

1. ON SECTIONAL DOORS:

Lengthen the door arm (See Step 10, Page 16).

IF DOOR DOES NOT

CLOSE COMPLETELY

If door arm is at maximum length, increase the DOWN travel
by turning the down limit adjustment screw in a counter

clockwise direction as shown on label. One turn equals 2

inches of travel.
If door still will not close completely, the header bracket is
positioned too high. Repeat Step 2, Page 11

2. ON ONE-PIECE DOORS:

Increase DOWN travel by turning the down limit adjustment
screw in a counterclockwise direction as shown on label. One
turn equals 2 inches of travel.

TEST DOOR FOR BINDING

IF DOOR REVERSES

WHEN CLOSING AND
THERE IS NO INTER-

Pull emergency release handle and manually open and close
the door. If door is binding, call a door ser viceman

1 .

IF OPENER REVERSES BEFORE DOOR CLOSES FULLY:

FERENCETO

TRAVEL CYCLE

Adjust the CLOSE FORCE as explained

Step 2, Page

2. IF OPENER REVERSES IN FULLY CLOSED POSITION;

Decrease DOWN travel. Tur n the down limit adjustment screw
in clockwise direction. One turn equals 2 Inches of travel

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