Kone MX20 - Page 111

KONE Maintenance Method
MX10 / MX20 MCP Procedures - ASME A17.1-2013 / CSA B44-13
© 2014 KONE Corporation PSK8-604-MX10/MX20
All rights reserved.
111 (-) 2014-12-15
5) Put car on machine room inspection by putting switch 270 DOWN.
6) Set UI menu 6-72-3, Counterweight Buffer Test.
Note: Overrides manual stopping means.
7) Back out of menu 6.
8) Turn off inspection.
9) Register a call to top terminal floor.
• Car will start.
10) After 77:N turns off, press and hold buffer test button.
• Elevator will continue running up.
Note: Overrides NTS.
11) Watch ETSL LED's CAR TOP switch and
MOTOR TOP switch on ETSL board.
• As soon as CAR TOP switch and
MOTOR TOP switch LED's turn on, car
will drop main brake and slide to a stop.
• Fault 217 will appear on the UI.
• If elevator stops short of top floor,
elevator will recover and level into floor.
If elevator slides onto final limit switch
(151:U) perform following steps.
• Put elevator on inspection, 270 switch
DOWN.
• Temporarily jumper LCEADON2 XH1/1-
5.
• Run elevator down below final limit.
• Remove temporary jumper from
LCEADON2 XH1/1-5.
• Return elevator to normal operation.
• Verify buffer returns within 90 seconds.