KONE Maintenance Method
MX10 / MX20 MCP Procedures - ASME A17.1-2013 / CSA B44-13
© 2014 KONE Corporation PSK8-604-MX10/MX20
All rights reserved.
108 (-) 2014-12-15
125% Lower and Hold test
Prior to performing 125% lower and hold test, perform 125% load brake functional check and
verify each brake independently holds 125% load.
1) Move the elevator to an upper landing from where the car can accelerate down and reach
maximum speed.
2) Use switch 270 to put the car on machine room inspection while doors are still open.
3) Use switches 261 and 263 on LCECPU to inhibit landing calls and door opening.
Note: Overrides the 110% load limit and prevents doors from opening.
4) Load car with 125% of nominal load.
5) Check user interface menu 5-1. Menu should display about 125.
6) Put the car on automatic. The car may relevel.
7) Run car down to bottom floor.
Note: Make sure car runs down and stops at bottom floor.
8) Slide CPU switch 263 to the right and open doors by registering "at floor" car call.
9) Remove test weights from car.
10) Check menu 5-1. Verify loadweigh reads 0% after test weights are removed, +/- 5%.
Note: For additional information, refer to appropriate AM for loadweighing information.
8.6.4.20.5: For Future Use
8.6.4.20.6: EMERGENCY TERMINAL STOPPING AND SPEED- LIMITING DEVICES
ETSL board functional check
ETSL is required for all elevators equipped with reduced stroke buffers and for speeds > 700
FPM.
1) Capture elevator and inhibit hall calls and door operation.
2) Drive car to middle of hoistway. Elevator must be outside ETSL switch area and location must
be selected so elevator is able to accelerate to ETSL tripping speed.
3) Disconnect connectors on one ETSL board at a time.
• XSWB for driving DOWN test
• XWST for driving UP test
4) Give call to terminal floor. Elevator will stop upon reaching ETSL tripping speed.
5) Reconnect connector to ETSL board.
6) Repeat test in opposite direction.
7) Repeat test for second ETSL board if present.
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