Kone MX20 - 3.3 Maintenance Procedures on the Car Top

KONE Maintenance Method
MX10 / MX20 MCP Procedures - ASME A17.1-2013 / CSA B44-13
© 2014 KONE Corporation PSK8-604-MX10/MX20
All rights reserved.
48 (-) 2014-12-15
3.3 Maintenance Procedures on the Car Top
8.6.4.1: Suspension and Compensating Wire Ropes
Hoist and comp rope condition
Procedure Note
Check hoist and compensating ropes for:
• excessive wear
• breaks
• rouge
• proper diameter
Note: Refer to A17.2 and/or A17.6 for
additional information about checking
the condition of the hoist and
compensating ropes.
8.6.4.1.1: Hoist and comp rope cleaning
Procedure Note
Clean the hoist and compensating ropes
annually in preparation for an examination of
the ropes.
• Manual cleaning – Wear leather gloves to prevent
injury from broken wires. Use a bristle brush (not
a wire brush) soaked in gear oil to remove any
buildup of dirt from the cables. Remove excess
oil with a heavy cloth rag.
• Auto-lubricator: Follow the manufacturer’s
recommendations.
Note: Do not use a cleaning solution as
it will damage the internal lubrication of
the rope.
8.6.4.1.3: Hoist rope tension
Procedure Note
Check the tension of the hoist ropes with the top of
the cab approximately halfway between the top
landing and the counterweight. Use one of the
following two methods.
1) Measure each rope with a hoist rope tension
measuring tool. All hoist ropes must have equal
tension.
2) Check the tension by pulling each hoist rope in
succession with an index finger. Measure the
distance each rope deflects using a fixed reference
point.
Note: Suspension members are
considered to be equally tensioned when
the smallest tension measured is within
10% of the highest tension measured.