LiftMaster LA400 Residential DC Linear Gate Operator - Manual (Page 41)

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OPERATION AND MAINTENANCE
» MAINTENANCE
MAINTENANCE
NOTES:
• Severe or high cycle usage will require more frequent maintenance checks.
• Inspection and service should always be performed anytime a malfunction is
observed or suspected.
• 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.
• 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 operator’s rating.
• See page 33 for instructions on how to adjust the gate force.
CHECK AT LEAST ONCE EVERY
DESCRIPTION TASK MONTH 6 MONTHS 3 YEARS
External Entrapment Protection System Check and test for proper operation X
Manual Release Check and test for proper operation X
Gate Inspect for wear or damage X
Accessories Check all for proper operation X
Electrical Inspect all wire connections X
Mounting Hardware Check for tightness X
Batteries Replace X
Operator Inspect for wear or damage X
Warning Signs Make sure they are present X
Disconnect power before servicing.