KONE Maintenance Method
MX10 / MX20 MCP Procedures - ASME A17.1-2013 / CSA B44-13
© 2014 KONE Corporation PSK8-604-MX10/MX20
All rights reserved.
58 (-) 2014-12-15
3.5 Maintenance Procedures in the Pit
8.6.4.4: Maintenance Procedure for Oil Buffers (if installed)
Procedure Service Intervals
Check the oil level Once a year
Drive the car or counterweight on the buffer and check to ensure
the piston returns to its normal position.
Once a year
Check to ensure the safety switch operates properly. Once a year
Oil Filling
8.6.4.4.1: Check the oil level from the oil level indicator (see the figure on the right).
- If the oil level does not reach the oil level indicator, disassemble the piston top (see the figure
on the left) and fill in oil (OB buffers: ISO VG46, OLEO and YH buffers: ISO VG68).
- Install the piston top parts and let the buffer rest (piston compressed 40...50 mm).
- Re-check the oil level from the oil level indicator.
- If much oil (1 liter/year) is needed replace the buffer.
- Clean the pit if there has been an oil leak and handle the waste in line with a sound
environmental policy.
8.4.4.4.2: Clean the buffer plungers. Remove any paint or other substance that could possibly
interfere with its proper operation.
- Check alignment of the buffers to the strike plates. Correct any misalignment.
- Check security of all buffer fastenings. Tighten as required.
8.6.4.4.3: Do not store additional buffer oil in the pit or on the car top.
NOTE! Make sure that the hole is on the opposite side of the air hole when assembling.