WARNER ELECTRIC EUROPE - Rue Champfleur, B.P. 11095, F - 49182 St Barthélemy d’Anjou Cedex SM344gb - rev 01/06 4/5
Caution: When installing and should the brake ever be
dismantled, make sure that the friction disc heel is the right
way round when the brake is re-assembled (see Fig.1).
• Engage the brake, engage the rear disc with the
intermediate disc and the brake on the hub (line up the
brake on the fixing thread)
•Tighten the 8 fixing screws CHc M12 (star sequence
tightening, Cs: 50 Nm). Finish tightening with a torque,
130 Nm (±10%)
NOTE: Secure the fixing screws (use a safety washer or
thermoplastic liquid such as Loctite)
• Remove the 3 transport screws
• Make all the electrical connections
4 Maintenance
4.1 Adjusting the airgap
Check the airgap at each maintenance inspection.
Reminder: This brake is intended for a static appli-
cation as a safety brake. Any dynamic braking is
restricted to emergency and test braking. Normal use will
not lead to any noticeable wear on the lining. If for any rea-
son it should be necessary to adjust the airgap, proceed
as follows:
• Loosen the attachment screws slightly
• Adjust airgap (Fig. 3) with adjusting screws (hexagonal
bar 21/flat) until they slightly exceed the nominal value
(see Table 1)
• Tighten the screws (refer to point 3.3 Installation)
• Carry out a few successive draws and releases
• Check the value of the airgap at several points
• Repeat the whole process if necessary for the second
4.2 Adjusting the microswitch
Slide a wedge 0,15 mm thick close to the screw between
the face of the magnet and the moving armature. Switch
on the current and tighten the adjusting screw H M4 (7/flat)
in contact with the microswitch until you reach the com-
mutation point. Remove the disc or the wedge. Check
that it functions correctly by a few successive draws and
releases.
Operation microswitch
Current range 10 mA min. to 100 mA max. at 24 VDC.
Maximum electrical lifetime of the microswitch ensure only
by switching under resistive load.
Microswitch
connection
When the coil is switched off, the microswitch is in the
“ NC ” position.
5 Electrical connection
Brakes ERS VAR10 SZ 2500/2500 Warner Electric
part number 1 12 106607 and ERS VAR10 SZ
2500/3000 Warner Electric part number 1 12 106806
operates on a direct current supply. Polarity does not affect
the way the brake operates.
5.1 Important recommendations
All works on the electrical connections have to be
made with power off.
Make sure that the nominal supply voltage is always
maintained. A lack of power results in a reduction
to the maximum airgap.
Fig. 3
Fig. 4
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