O P E R A T I O N A N D M A I N T E N A N C E; Maintenance - Chamberlain CB24 Owner's Manual

M A I N T E N A N C E
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CAUTION CAUTION
RESIDENTIAL USE 1-50 CYCLES/DAY (350 PER WEEK)
COMMERCIAL USE 50+ CYCLES/DAY (350+ PER WEEK
DESCRIPTION
External entrapment
protection systems
Gate warning signs
Manual disconnect
Gate
Accessories
Electrical
Frame bolts
Total unit
NOTES:
1. Disconnect power before servicing.
2. Severe or high cycle usage will require more frequent maintenance checks.
3. Inspection and service should always be performed anytime a malfunction is observed or suspected.
4. When servicing, please do some "house cleaning" of the operator and the area around the operator. Pick up any debris in the area.
Clean the operator as needed.
5. It is suggested that while at the site voltage readings be taken at the operator. Using a Digital Voltmeter, verify that the incoming
voltage to the operator it is within ten percent of the operators rating.
To reduce the risk of SEVERE INJURY or DEATH:
1. READ AND FOLLOW ALL INSTRUCTIONS.
2. NEVER let children operate or play with gate controls.
Keep the remote control away from children.
3. ALWAYS keep people and objects away from the gate.
NO ONE SHOULD CROSS THE PATH OF THE MOVING
GATE.
4. Test the gate operator monthly. The gate MUST reverse
on contact with a rigid object or stop when an object
activates the non-contact sensors. After adjusting the
force or the limit of travel, retest the gate operator.
Failure to adjust and retest the gate operator properly
can increase the risk of INJURY or DEATH.

O P E R A T I O N a n d M A I N T E N A N C E

TASK
Check for proper operation
Make sure they are present
Check and operate
Inspect for wear or damage
Check all for proper operation
Inspect all wire connections
Check for tightness
Inspect for wear or damage
IMPORTANT SAFETY INSTRUCTIONS
To reduce the risk of SEVERE INJURY or DEATH:
• Disconnect ALL power BEFORE performing ANY

maintenance.

• ALL maintenance MUST be performed by a LiftMaster
professional.
MONTH
DAILY
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CAUTION CAUTION
5. Use the emergency release ONLY when the gate is not
moving.
6. KEEP GATES PROPERLY MAINTAINED. Read the
owner's manual. Have a qualified service person make
repairs to gate hardware.
7. The entrance is for vehicles ONLY. Pedestrians MUST
use separate entrance.
SAVE THESE INSTRUCTIONS.
8.
16
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CHECK AT LEAST ONCE EVERY
3 MONTHS 6 MONTHS 12 MONTHS
WEEKLY MONTHLY 6 MONTHS
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