Page
2
DRUCEGROVE Ltd, Unit 12 Abbey Mead Industrial Park,
Brooker Road, Waltham Abbey, Essex EN9 1HU
Phone:
+44 (0) 1992 650486
Fax:
+44 (0) 1992 652226
[email protected]
www.drucegrove.com
Rope Tensioning System
Equator
®
THE IMPORTANCE OF EQUALISING THE ROPE TENSION
The importance of equal tension in lift hoist ropes is well known to Maintenance Engineers
and Lift Installers. Unequal tension creates vibration and rope slip, which leads to premature
and excessive wear of ropes and sheave grooves.
To help prevent this, it is important to ensure rope tensions are equal on all hoist ropes
supporting the lift car and counterweight.
So how do we know when the hoist rope tensions are equal?
A coarse method of checking for equal rope tension can be achieved by observing the adjust-
ment of springs at rope terminations or by ‘rule of thumb’. These are, at best, approximate
methods and cannot be relied upon.
The
Equator Rope Tensioning System
from Drucegrove is a quick and easy method to
accurately adjust and equalise rope tensions It uses two identical injection moulded gauges
to compare and ensure the tensions in lift hoist ropes are equalised.
The Equator system is fast to implement and the rope tensions measured are accurate
because the two gauges are initially site calibrated on the same rope.
The ranges of lift ropes that can be checked are from 6mm (¼") to 20mm (¾").
