Owner manual

OPERATION AND MAINTENANCE » MAINTENANCE + BATTERY + DRIVE CHAIN
NOTES:
• Severe or high cycle usage will require more frequent maintenance checks.
• Limits may have to be reset after any major drive chain adjustments.
• If lubricating chain, use only lithium spray. Never use grease or silicone spray.
• 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.
Disconnect all power to the operator before servicing.
MAINTENANCE
CHECK AT LEAST ONCE EVERY
DESCRIPTION TASK MONTH 6 MONTHS 3 YEARS
External Entrapment Protection System Check and test for proper operation X
Photoelectric Sensors Check and test for proper operation X
Warning Signs Make sure they are present X
Manual Disconnect Check and test for proper operation X
Drive Chain Check for excessive slack and lubricate X
Sprockets and Pulleys Check for excessive slack and lubricate X
Gate Inspect for wear or damage X
Accessories Check all for proper operation X
Electrical Inspect all wire connections X
Chassis Mounting Bolts Check for tightness X
Operator Inspect for wear or damage X
BATTERY
The battery should be replaced every three years. Use only LiftMaster part 29-NP712
for replacement batteries. The operator comes with one 7AH battery. A second 7AH
(29-NP712) battery may be added or one 33AH (A12330SGLPK) may be used in
place of the 7AH batteries. The batteries contain lead and need to be disposed of
properly.
DRIVE CHAIN
Over time, the drive chain on the operator will stretch and need to be tightened. To
tighten the drive chain adjust either of the two chain eye bolts.
NOTE: The chain should have no more than 1 inch of sag for every 10 feet of
chain length.
Batteries Replace X
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