EVERY EVERY EVERY EVERY EVERY
ITEM
PROCEDURE
MONTH
3 MONTHS
6 MONTHS
12 MONTHS
24 MONTHS
Instant Reverse Device Test IRD Reversal
z
(IRD)
Fasteners
Check and tighten
as required.
z
◆
Bearings & Shafts
Check for wear
and lubricate.
z
◆
Battery Maintenance
Replace batteries.
◆
z
16
M A I N T E N A N C E
Check at the intervals listed in the following chart:
Repeat ALL procedures.
BATTERY MAINTENANCE / TESTING
The batteries are maintenance free. However, to insure proper and
safe operation, it is recommended that the batteries be replaced
every two years. Battery testing is conducted automatically. See
the Battery Test Description section for manually initiating the
battery test.
BATTERY HANDLING / STORAGE
Refer to the battery manufacturer’s Material Safety Data Sheets
(01-30839 “MSDS Sheets, Battery, Standard”). LiftMaster does
not recommend storage of batteries in the field. Batteries are
intended for immediate use.
GENERAL SERVICE
• Belt loose or needs replacement, adjust with 4 bolts that
support motor to allow 1/4" play.
• Charge voltage for batteries should be 27.5 +0.05, -0 Vdc
with batteries disconnected (Set with R63, shown on the
Control Board Layout page).
• Replace batteries with LiftMaster P/N MBAT batteries. Replace
in pairs.
BATTERY DISPOSAL
Replaced batteries must be treated as a hazardous waste and
disposed of in accordance with State, Local and Federal
Regulations. See the battery manufacturer’s Material Safety Data
Sheets (01-30839 “MSDS Sheets, Battery, Standard”).
BATTERY REPLACEMENT
Service Kits are available for battery replacement. Please contact
Technical Support (see back of this document for contact
information).
To prevent possible SERIOUS INJURY or DEATH from
electrocution or fire, BEFORE proceeding:
• Disconnect ac power at the fuse box.
• Disconnect dc power at the battery connection.
ATTENTION
AVERTISSEMENT
AVERTISSEMENT
AVERTISSEMENT
WARNING
CAUTION
WARNING
WARNING
WARNING
PRECAUCIÓN
ADVERTENCIA
ADVERTENCIA
ADVERTENCIA
