ZIEHL-ABEGG ZAS0, Operating Instruction

Page: 13 / 72

" Pre-tension the rubber ring (1) between the anchor plate (2) and the disk (3) to 3 mm.
" Lock the nuts (4).
" Connect the brake lever (6) to the amature plate (2).
" Install the brake lever according to the chapter "Maintenance and service – maintenance of the
operating brake".
" The distance between the magnet housing (5) and the anchor plate (2) must be at least 0.5 mm
and 1 mm at the maximum.
" Lock the nut (8).
" Set the brake spring (9) so that a brake liner (7) safely decelerates the cabin at full downward
load (recommended value: approx. 1 fl oor distance).
" Pre-tension the brake spring (9) to dimension "L" with engaged brake at the maximum (see
table below and picture 4.6.4).
The dimension "L" indicates the distance between the end of the eye bolt (A) and the disk (B).
" Lock the nuts (10).
" The optimum setting of the operating brake is reached when the brake opens fully after pre-
tensioning the compression spring and setting the air gap. Complete opening of the operating
brake is indicated by grinding noises audible between the brake liner and the brake disk when
turning the hand wheel. But at the same time no loud knocking noise should be heard when the
anchor plate is attracted by the magnet housing.
" Mark all nuts with sealing varnish.
" Note: The fi rst four steps must only be performed if the brake lever have been changed
completely.
Gear settings
Lift ma-
chine (type)
Spring wire di-
ameter d [mm]
Magnet
size (type)
Spring
length
L
O
[mm]
Dimension L / braking
torque (factory setting)
[mm] / [Nm]
Dimension L / braking
torque (maximum value)
[mm] / [Nm]
ZAS0 4.0 G231 72 12 mm / 83 Nm 14 mm / 99 Nm
ZAS1 5.0 G231 88 25 mm / 101 Nm 30 mm / 136 Nm
ZAS2 5.5 G232 110 30 mm / 139 Nm 35 mm / 174 Nm
ZAS3 7.0 G233 115 47 mm / 277 Nm 50 mm / 312 Nm
Table: Setting the spring pre-tension
Warning!
The maximum admissible spring pre-tension may not be exceeded. There is a danger of
material fracture or malfunctioning of the brake!
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ZAS0 Mechanical installation
A-TBA11_06-GB
Part.-No. 01008051-GB
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