Kone MX20 - Page 95

KONE Maintenance Method
MX10 / MX20 MCP Procedures - ASME A17.1-2013 / CSA B44-13
© 2014 KONE Corporation PSK8-604-MX10/MX20
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95 (-) 2014-12-15
6) Compare speed measurements to governor electrical trip speed recorded on governor
nameplate.
• All three speed measurements should be approximately equal.
• If electrical trip point is within tolerance, proceed to next step.
• If electrical trip point is not within tolerance, governor must be replaced.
7) Use same procedure as above to check mechanical trip speed three times and record results.
8) Compare speed measurements to governor mechanical trip speed recorded on governor
nameplate.
• All three speed measurements should be approximately equal.
• If mechanical trip point is within tolerance, proceed to next step.
• If mechanical trip point is not within tolerance, governor must be replaced.
9) Once governor trip points are confirmed, replace governor rope on governor sheave.
10) Unblock governor tension weight.
11) Reset the tension weight switch.
12) Make sure governor rope is hanging freely.
13) Make sure governor jaw is reset (OL 100 only).
14) Reset governor electrical overspeed switch.
15) If there is a counterweight governor, test electrical and mechanical trip points using above
procedure.
16) If all speed trip points are satisfactory, remove lock and tag, and turn on mainline disconnect.
17) Check operation.
EcoSystem MR®
• Run car on machine room inspection and verify car runs.
MRL
• Disengage car top locking device.
• Run the car top back to floor level and step off the car top.
• Turn off the top of car inspection.
• Return car to normal operation.