0639-990-21---30j_2010.07.indd
SLA
M6
0630-637
6,4/12x1,6
M6x8
LB
500 g
10...20
= = B
A
HSK
0639-990/22j
Page 30 of 46
Operating instructions
1. Check the tension of the toothed belt (by means of 500 g): Measure 10...20 mm.
2. If required correct the tension: with des-
place the guide unit.
Attention:
Proceed carefully when tigh-
tening the toothed belt. An
obliquely mounted guide unit
respectivelyaninsufcientor
anexcessivetensionofthetoo-
thed belt increases its wear and
causes a noisy operation.
3. Setting the door center:
Slightly loosen both belt connection
pieces on the running carriage, shift
the sliding wings together until the
distances A and B are equal, then re-
tighten the belt connection pieces.
Attention:
Checking the OPEN stop pi-
eces: In the OPEN position, the
sliding doors must touch both
stop pieces.
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