7
Figure 6
11
12
10
10
Figure 7
Figure 8
See Page 9 For
Bill Of Materials
See Page 9 For
Bill Of Materials
Increase
Tension
Decrease
Tension
5
5
20
20
21
21
23
Figure 9
3/8“ to 5/8”
3/8“ to 5/8”
1/8"
to
3/8“
1/8"
to
3/8“
Figure 5
1/4"
1/4"
1/4"
1/4"
NOTE: Distances are measured
from the inside of the guide.
decals to guides at eye level.
16. Apply
“WARNING”
and
“DO NOT LUBRICATE”
15. Tie rope to bottom bar.
14. Install slide locks to bottom bar as shown in Figure 9.
if necessary.
e. Check door operation. Readjust spring tension
d. Tighten set screw on chain hoist, if present.
of door shaft.
dd. Tighten saddle clamp bolt nuts at both ends
DO NOT
adjust more than ¼ turn at any time.
cc. Adjust spring tension as desired.
NOTE:
of the door shaft.
bb. Loosen saddle clamp bolt nuts at both ends
aa. Apply torque to door shaft using a pipe wrench.
following procedure:
c. Adjust spring tension (Figure 8) according to the
b. Loosen set screw on chain hoist, if present.
a. Raise curtain to fully OPEN position.
TO ADJUST SPRING TENSION:
Steel
Masonry
Masonry
Wood
Wood
Steel
880CD
890CW
890CW
All Sizes
All Sizes
All Sizes
All Sizes
Over 15’
All Sizes
Up to 15’
