Midilift XLplus
Maintenance Guide
Jan
2014
Issue
4
15
If counterweight comes into contact with pit buffer before the ultimate limit switch operates, it is possible to remove
the counterweight packers situated at the bottom of the counterweight. If all packers are removed and problem still
occurs, inform customer and supervisor that lift should be taken out of service and suspension ropes should be
replaced.
10.5 Earth bonding, insulation and electrical
•
Required
standard
Ensure that all earth bonds are present and that any terminations are secure.
•
Required
action
If a lift fails to be sufficiently earthed, this will result in a substantial risk to the user. If immediate earth bonding
cannot be achieved then the lift must be taken out of service and the customer and supervisor is to be informed on
the future remedial work.
11 MAINTENANCE INSTRUCTION – PHASE 2
11.1 Roof
top
•
Required
standard
Important note: Persons are not permitted to stand on the car roof
. On access of the ceiling (
4.4 Ceiling
removed, pg 5
), check all light fittings and check any loose electrical terminations or signs of overheating. The
engineer must be able to access roof top and replace roof top with ease and ceiling must be secure once returned
to normal operating position.
•
Required
action
If any terminals are loose, re tighten and assess the cause. If there is any damage to any component, record
manufacturer and part number and inform supervisor and customer of any remedial work required. If there is any
issue with ceiling access, carry out any remedial work required and inform supervisor and customer if any further
remedial work is required.
11.2 Upper shaft work
•
Required
standard
Important note: Persons are not permitted to stand on the car roof.
On access of the upper shaft work (
4.4
Ceiling removed, pg 5
), firstly check the traction sheave to ensure there is no indication of cracking and the keyway
has no signs of any movement. Ropes must be sitting at the same depth within grooves and there must be no
signs of fleeting or riffling.
Check all fixings, guides, sheave guard, overspeed governor and horizontal member. Look for any unexpected
debris. Ensure ropes pass through bedplate without clashing with any of the metal work.
•
Required
action
If there is any damage, looseness in keyway or excessive groove wear, inform supervisor and customer
immediately and advise on required remedial work. Assess whether to advise customer on possible lift shut down.
Re-tighten any loose fixings and if there is any unexpected debris found around bedplate, investigate both. If there
is any clash with ropes and metal work, carry out any immediate remedial work. If not resolvable, inform supervisor
and customer on further remedial work required.
