SL 90X-91X
Technical Manual
NAM-SL 90X-91X-TM-04-EN-E
With a constant view to adopting the latest technological developments, Automatic Systems reserves the right to amend the above information at any time
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9.10.
BALANCING SPRINGS AND ADJUSTMENT
Look for premature damage and metal grindings.
Grease moving parts, springs and bushings.
Make sure nuts and bolts are tight [1] (see
9.11.
SHUTTER, SHUTTER GUIDES, PROTECTORS AND SLIDING BANDS
Figure 20 Shutter assembly
The shutter is the strip that covers the opening left by the moving obstacle when it is in the open
item [3]). The shutter guides are the gray channels
Figure 19 Upper balancing spring bolt
Figure 18 Lower balancing spring bolts