LiftMaster RSL12V RSL12V User Manual - Page 4

MAINTENANCE DESCRIPTION External Entrapment Protection System Photoelectric Sensors Warning Signs Gate Drive Chain (Slide Only) CHECK AT LEAST ONCE EVERY MONTH TASK Check and test for proper operation Check and test for proper operation Make sure they are present Inspect for wear or damage Check for excessive slack and lubricate The following should be checked by an authorized LiftMaster dealer: DESCRIPTION Manual Disconnect Sprockets and Pulleys Accessories Electrical Chassis Mounting Bolts Operator Batteries TASK CHECK AT LEAST ONCE EVERY 6 MONTHS 3 YEARS Check and test for proper operation X Check for excessive slack and lubricate X Check all for proper operation X Inspect all wire connections X Check for tightness X Inspect for wear or damage X Replace 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 (SLIDE ONLY) 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. 3