Never attempt to disengage the free spool clutch when winch is under load.
WARNING
These winches are not intended for use in the lifting or moving of personnel.
INTRODUCTION
PLEASE READ THIS MANUAL CAREFULLY BEFORE INSTALLATION OR OPERATION
OF THE WINCH.
Ramsey Winches are widely used for commercial purposes throughout the world. As the
new owner/operator of a RAMSEY WINCH, it is important that you read and digest the
information contained in this Handbook. The winch is of the highest quality and has been
designed to give a robust and efficient service for many years if care and attention are
given at all times to correct, safe operation and maintenance.
Do not underestimate the potential danger in winching operations. Neither should you fear
them. Do learn the basic dangers and avoid them. Respect for your winch and common
sense in its operation, will ensure complete safety and reliability.
WINCH RATING
The Ramsey Winch rating on this model refers to its maximum rated line pull, measured as
the force being applied to the winch in a horizontal plane. As in the case of all winches,
this refers to the first layer of rope on the drum.
In most cases, when the winch is being used, there is no way of accurately determining
the exact pull being applied. It is important, however, to try and establish that it is within
the working capacity of both the winch and wire rope and this can be done by considering
the following formulae which applies for gradients up to an angle of 45°. For wheeled
vehicles, the pull required to move the load equals:
W
+ (W x angle of gradient).
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Where W = load in tonnes and angle of gradient is in degrees.
EXAMPLE
If W, the load of the vehicle is 4 tonne and is being pulled up skids, which form a gradient
of 18°, the force on the rope is:
4 + (4 x 18) = 0.16 + 1.2 = 1.36 tonne.
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Remember the winch pulling capacity reduces as the number of layers of wire rope
increase on the drum.
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