Inspection- And Maintenance Instructions - Yale MWW Series Operating Instructions Manual

Wire rope fixing
ATTENTION:
With wrong rope coiling the brake is not effective
Rope coiling has to be effected according to the
drawing
The wire rope descent must unconditionally (see
illustration) follow from the rear drum border (250-1500kg)
in the upward direction respectively from rear drum border
in downward direction (2000-2500kg)
The winch should be turned 180° when installed with a
downward rope descent direction.
Pay attention to correct rope direction (see picture)
The fastening of the wire rope is to be made with the
built-in rope clamping device.
For rope selection pay attention to the technical data for
the rope.
Calculate the rope length in such a way that at least 3 full
turns of rope remain on the drum in lowest load position.
Operating Instructions
The winch must first be run with 50% of the nominal load before operation.
Before operating the winch the drum must have at least 3 rotations with 50 % of the nominal load. The grease of
the wormgearing should be put back into the gearing by means of a brush. After this operation the winch can be
put into full use.
At least 25 % of the nominal load must be on the winch as load for the proper working of the friction brake.
Safety Instruction: The winches are only suited for manual operation.
Lifting the load by turning the crank in clockwise direction.
Lowering the load by turning the crank in counter-clockwise direction.

Inspection- and Maintenance Instructions

Safety Instruction
Before carrying out inspection and maintenance works ensure the winch is unloaded.
Inspection Intervals Maintenance- Inspection Works
daily
quarterly
annually
1)
for example by Yale service department.
Visual examination of rope - hook (carrying device)
Function of the winch
Function of brake
Grease gearing
Check the load pressure brake for brake function and wear. If necessary; the brake discs or
the complete load pressure brake have to be replaced by a competent person
Attention: No lubricant must be brought to the brake discs and their stopping
faces.
Examine the rope for wear according to DIN 15020 page 2 and execute maintenance
works. Check cable on minimum breaking power.
Check the fixing screws for firm seat.
Check all parts of the winch and crank for wear. If necessary, replace defect parts and
grease them.
Only use the grease recommended by us.
Check Name-plate for legibility
Arrange for an examination by a competent person
1)
1)