Wayne-Dalton DS-350 - Manual (Page 7)

7
side and position the door as close as possible to the door header. Be sure that the door is able to revolve without
scraping against door header or guides. Rotate door assembly so that bottom bar angle is at bottom of curtain roll.
To avoid serious injury or death, never walk, stand, or work
below door assembly before it is secured to support brackets.
STEP 6
SECURE AXLE SADDLE CASTINGS
Making sure that the bottom bar angle is at the bottom of the
curtain roll; place the axle saddle castings around the axle on each
side, with the flat keeper plate on top. Install the 3/8-24 x 3-1/2”
bolts, flat and lock washers, and 3/8-24 nuts as shown. Be certain
to tighten both nuts to a torque of 40 foot-pounds. Spring tension
will be lost if both axle saddles are not tightly secured.
Axle saddles hold extreme spring tension. Loose axle saddles
could result in loss of spring tension, causing door to fall,
possibly producing serious injury or death.
STEP 7
PRE-TENSION THE DOOR SPRINGS
Starting with the bottom bar angle at the bottom of the curtain roll, apply two complete
turns of pretension to the springs by rotating the curtain roll in the direction shown. The
amount of tension required may vary slightly. Final adjustment, if necessary, will be made
in Step #10.
Spring tension can cause curtain roll to rotate rapidly.
Securely hold curtain roll from rotating while applying
pretension or serious injury or death could result.
Securely hold door curtain until bottom bar stop fasteners
have been tightened. If not securely held, door may raise or
drop, possibly causing injury or death.
Do not apply pretension to larger
doors using ladders. Ladders may fall
causing serious injury or death.
Cut the tape that holds the door in a roll and gently pull the curtain down into the
guides on both sides until the bottom bar is below the bottom bar stops. Do not pry on
the bottom bar stops to get bottom bar past, loosen fasteners until bottom bar angle
easily clears stops. If the door has a tendency to close, secure in position using clamps.
If the door has a tendency to rise, secure in position using a wood prop as shown.
While the door is secured from moving, tighten the bottom bar stop fasteners on both
guide assemblies .
Tighten bottom bar stop fasteners with impact gun
to prevent bolts from spinning.
WARNING
WARNING
WARNING
WARNING
HINT:
WARNING