45
Roll-Up-Door
Step 33
BW45
STEP
2
STEP
1
CAUTION:
FROM THIS POINT ON, BE SURE
TO USE EXTREME CAUTION
UNTIL THE DOOR IS PROPERLY
SPRUNG AND OPERATING
1
Attach "S" hooks to both springs.
Fasten sheave and spring clevis to
opposite ends of springs using a 3/8-
16x1 1/2" hex head bolt and 3/8 nut.
Attach spring assemblies to spring
support brackets.
2
Carefully raise the door to a fully
open position and prop. Make sure
the door is level in the opening. Slip
the keyed end of the keyed cable
over the studs of the bottom brackets.
Thread cable over front sheave,
around spring sheave and attach end
to cable lacer. Attach cable lacer
with "S" hook in a convenient hole in
horizontal track angle, keeping equal
tension on both springs, so that door
hangs level. Once cable is installed,
remove prop and lower door.
3
Adjust vertical tracks so rollers seat
in "U" of track and bottom rollers fit
snug against bottom brackets, but
not too tight, so rollers will operate
freely. When complete, tighten all
track bolts.
4
Adjust striker plates for proper en-
gagement with the latches. Adjust
the top fixture up or down and tighten
the screws to hold the third door panel
against the lintel.
NOTE
Recheck all door fasteners and
hardware to be sure that each
fastener is tight and secure.
CHECK
Be sure that the lift cables do not rub and/or the rollers do not
bind in the track when door is opened or closed. Recheck the
springs to be sure that there is equal tension on both springs. This
is extremely important for proper door operation.
ADJUST
Springs by changing location of "S" hooks to another hole on
support angle of the horizontal track.
