GEBUWIN WW250 Mode D'emploi page 8

3. Technical details
The type designation is as follows:
WW : Wormgear winch with hoisting load 250, 500, 1000, 1500, 2000, 3000, 4000, 5000, 7500 kg
GR : Grey, painted colour RAL7035
EV : Zinc plated (minimum 6 micron)
MR : Marine, painted colour RAL9005
D : Drum, 1 cable compartment
2D : Drum, more cable compartments
GD : Grooved Drum
EX : ATEX certified, zone 2 and 22
FS : FreeSpool, provided with cable drum free-spool device
FSB : FreeSpoolBrake, provided with cable drum free-spool device and adjustable friction brake for controlled cable unwinding
SST : Stainless Steel version
3.1. Function description
The WW type winches are drum winches with a worm gear transmission. The load is held at each required height by a built in load pressure brake. The worm
shaft and cable drum run on bearings. The housing is made of plate steel and is suitable for mounting on walls, masts and the like. The crank is adjustable in
length and detachable. The winches with hoisting loads of 2000, 3000, 4000, 5000 and 7500 kg are fitted with a second drive shaft with another transmission.
3.2. Mounting instructions
The winch must be mounted with the bolts as set out in the corresponding chart (see end of chapter). To avoid tension build up in the winch housing, pay
attention to the following:
there must be a smooth surface at the mounting bolt position;
-
- the wall or other construction must have sufficient carrying power;
the level of the mounted winch must be checked with a spirit level in order to ensure good cable movement.
-
All the nuts of the mounting bolts must be evenly fastened and secured.
3.3. Cable mounting
For the choice of cable, chart 1 must be consulted. The cable must run-off upwards from behind the drum. The cable is allowed to run-off backwards horizontally
from underneath the drum with the WW series as well as with some of the models in the TL series.
Be careful! The brake does not work in the case of an incorrect cable run-off.
The cable length must be of sufficient length to allow for 3 windings to remain on the drum when in the lowest position. The cable mounting is done by means of
the fixed cable clamp.
3.4. Before use
The winch is fitted with a worm wheel gearing. To ensure a long lifespan we recommend that the
winch be run in before use. Allow the winch to make approximately 5 drum rotations whilst loaded
with approximately 50% of the nominal load. Remove the protection cover and using a brush,
redistribute the grease over the worm wheel and the worm gear. Replace the protection cover. The
winch is now ready for use.
Check before each use if the transmission is sufficiently greased. This will
prevent 'galling' and overheating.
To enable the load pressure brake to function correctly, the winch must carry a minimum load of approximately 10% of the nominal load.
3.5. Operating
The winches are suitable for manual operation only. For the load to be hoisted, turn the crank clockwise. For the load to be lowered, turn the crank
anticlockwise.
The FS and FSB type winches are equipped with a Free Spool (FS) option
for the cable drum. Follow the next instructions to engage and disengage
the cable drum.
To disengage:
To be able to operate the Free spool clutch handle ( red lever) there
must be no load on the drum.
Set the cable drum free by turning the drum 4 cm in direction A. Then turn
the clutch handle in direction C. The drum is now free to spool of the cable
6