Maintenance - Chamberlain LA400 Installation And Operation Manual

MAINTENANCE

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.
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.
IMPORTANT SAFETY INSTRUCTIONS
To reduce the risk of SEVERE INJURY or DEATH:
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
WARNING
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.
8. Disconnect ALL power BEFORE performing ANY
maintenance.
9. ALL maintenance MUST be performed by a
LiftMaster professional.
SAVE THESE INSTRUCTIONS.
10.
TASK
MONTH
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To reduce the risk of FIRE or INJURY to persons, use ONLY
LiftMaster part #K74-30762 for replacement batteries.
35
CHECK AT LEAST ONCE EVERY
3 MONTHS 6 MONTHS
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CAUTION
12 MONTHS