Chamberlain HD175DM 1/2 HP Garage Door Opener User Manual


 
32
CARE OF YOUR OPENER
LIMIT AND FORCE ADJUSTMENTS:
Weather conditions may cause some
minor changes in door operation
requiring some re-adjustments,
particularly during the first year of
operation.
Pages 27 and 28 refer to the limit
and force adjustments. Only a
screwdriver is required. Follow the
instructions carefully.
Repeat the safety reverse test
(Adjustment Step 3, page 29) after
any adjustment of limits or force.
FORCE CONTROLS
LIMIT CONTROLS
(Left panel)
(Back panel)
1
3
9
7
5
1
3
9
7
5
Kg
Kg
INCREASE TRAVEL
DOWN
UP
THE REMOTE CONTROL BATTERY
The lithium battery should
produce power for up to
5 years.
To replace battery, use the
visor clip or screwdriver blade
to pry open the case as
shown. Insert battery positive
side up (+).
Dispose of old battery
properly. Replace the battery with
only 3V2032 coin cell batteries.
NOTICE: To comply with FCC and or Industry Canada rules (IC), adjustment or modifications of
this receiver and/or transmitter are prohibited, except for changing the code setting or replacing
the battery. THERE ARE NO OTHER USER SERVICEABLE PARTS.
Tested to Comply with FCC Standards FOR HOME OR OFFICE USE. Operation is subject to the
following two conditions: (1) this device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause undesired
operation.
MAINTENANCE SCHEDULE
Once a Month
Manually operate door. If it is unbalanced or binding,
call a trained door systems technician.
Check to be sure door opens & closes fully. Adjust
limits and/or force if necessary. (See pages 27 and 28)
Repeat the safety reverse test. Make any necessary
adjustments. (See Adjustment Step 3)
Twice a Year
Check chain tension. Disconnect trolley first. Adjust if
necessary. (See page 11)
Once a Year
Oil door rollers, bearings and hinges. The opener does
not require additional lubrication. Do not grease the
door tracks.
Battery
positive
side up (+)
To prevent possible SERIOUS INJURY or DEATH:
• NEVER allow small children near batteries.
• If battery is swallowed, immediately notify doctor.
To reduce risk of fire, explosion or chemical burn:
• Replace ONLY with 3V2032 coin batteries.
DO NOT recharge, disassemble, heat above 212°F (100°C)
or incinerate.