GEBUWIN MR500 Manuel D'utilisation page 9

Belt mounting
Table 1 should be consulted for the choice of lifting strap.
Ensure that the locking plate for the lifting strap is properly attached to the drum.
The webbing should slope upwards from behind the drum. However, on some versions, the belt can also run horizontally
from below to the back.
Beware:
If the tyre runs in the wrong direction, the brake will not work.
The belt length should be such that at least 3 windings remain on the drum when the load is in the lowest position.
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
To engage:
Turn the clutch handle in direction B. Rotate the cable drum in direction B until it locks. The winch is now ready to hoist.
The FSB versions are equipped with an adjustable slipping clutch. The slipping clutch enables the cable to be discharged in a controlled manner in the free
spool mode. The slipping clutch can be set by unscrewing the 4 adjustment screws. De spring will be set correctly for the right torque.
3.6. ATEX
The winches with EX coding can be used in ATEX zones 2 and 22. In addition, a distinction has been made in coding for the worm gear winches (WW), spur gear
winches (TL) and worm gear marine (MR) winches. See type plate for corresponding coding.
The codes have the following meaning:
a. CE marking in accordance with the European Machinery Directive
b. Ex marking for explosion safety
c. Group II for use in all environments (industrial use) except mining
d. Category 3 is the level of protection and is suitable for either:
G (gas environments)
D (dust environments)
Followed by 'Ex' (explosion proof)
e. Suitable for or:
II (Gas group II)
III (Dust group III)
Our marine (MR) winches have a higher ignition energy (IIB) in the gas group than our worm gear and spur gear (WW/TL) winches (IIC).
The ignition energies of the dust group are the same for all types of winches, namely IIIC.
f. Temperature class for or:
T4 (temperature <135 ºC), T135 ºC (temperature <135 ºC)
T3 (temperature <200 ºC), T200 ºC (temperature <200 ºC)
Our worm gear and marine (WW/MR) winches are T4 marked. Our spur gear (TL) winches have a T3 marking.
g. Equipment Protection Level:
Gc (gas) or Dc (dust)
h. Ambient temperature (ambient) for use from -20ºC up to 70 ºC
4. Maintenance
The winch must be unloaded for inspection and maintenance tasks. Inspection and maintenance tasks must be performed by skilled personnel, e.g.
via your Gebuwin dealer.
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