KONE Maintenance Method
MX10 / MX20 MCP Procedures - ASME A17.1-2013 / CSA B44-13
© 2014 KONE Corporation PSK8-604-MX10/MX20
All rights reserved.
21 (-) 2014-12-15
Brake Maintenance Safety: MX10 and MX20
• General KONE safety regulations are to be followed during the work. All safety measures
signified for normal elevator maintenance are to be implemented and local safety regulations
followed.
• Use carefully the manual brake release because the elevator will accelerate very quickly to a
high speed.
• Use the stop switch in the vicinity of machine or main switch to prevent an unexpected
movement of the elevator.
• Check that the motor cables are safely de-energized.
The following safety items must be complete prior to starting the actual work
1. Drive the elevator to the suitable position and block it using the blocking device on the car
roof. NOTE: Mind the step when exiting the top of the car (if needed, use an approved
workbench as an extra step at the landing level).
In case the brake does not operate, use the rescue equipment or counterweight lifting device
to position the car in the correct position. NOTE: Follow local practice to inform customer and
end users.
2. Switch OFF the main switch (220)
3. Lock and tag the main switch
4. Keep the control panel / maintenance access panel closed and locked.
5. Erect barricades at the hoistway entrance.
Inverter drives usually remain energized for about 5 minutes
after power has been disconnected. DO NOT work on the
drive, hoisting motor or braking resistor until you have
verified that this energy has been discharged. Test
equipment must be set to the 1000 VDC range. The test
equipment must be checked before and after the test to
ensure that it functions correctly.
Tools required for brake adjusting: MX10 and MX20
• 0.05 mm (0.002 in) feeler gauge
• 0.1 mm (0.004 in) feeler gauge
• 5 mm Allen wrench
• 19 mm open end wrench
• 17 mm open end wrench
• Medium Phillips screwdriver
• Electrical brake opening tool
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