Chamberlain SL 1000-XI - Manual (Page 29)

Rev C Doc 6001194 (01-20259) 26 of 36
PREVENTIVE MAINTENANCE INSTRUCTIONS
Figure 18. Gate Operator Disassembly and Assembly.
Gate Operator Serial Number: Power Fail Option: Yes No
One minute after a power outage the Power Fail Option: Opens Gate Closes Gate
⇒ If switch S2 (Power Fail Open Direction switch) is set to open the gate, cycle the gate to its fully
open position before performing step 1.
⇒ If switch S2 (Power Fail Open Direction switch) is set to close the gate, cycle the gate to its fully
closed position before performing step 1.
♦ Refer to Figure 18, above, to perform the following instructions.
1. Turn off power to the gate operator at the circuit breaker and wait for one minute.
2. Remove the cover mounting bolts and remove the gate operator cover.
3. Push the gate to ensure it rolls freely (grease if necessary). Check (
✓ ) its box in the Maintenance
Schedule.
4. Inspect drive train (sprockets, chain, etc.) for wear and hardware tightness. Check ( ✓ ) its box in
the Maintenance Schedule.
5. Perform preventive maintenance tasks 3 to 14.
6. After completing all checks, perform the procedure found in Part 2, System Installation, paragraph
M, Final Assembly of Gate Operator.