Despatch S Type - Manual (Page 92)

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OPTIONAL S-TYPE OVEN VERTICAL LIFT DOOR INSTALLATION
The following is a narrative describing the steps for the adjustment of a lift door.
Step #
Description
1.
Lay oven front down on a flat level surface and flush out front sections. The oven
fronts generally ship in three pieces. Dependent on oven temperature design a bead
of either Oven Cement or Silver Seal (refer to manual for temperature limitations) must
be applied between the butt joints where the oven fronts join together. Bolt the oven
front pieces together, check to make sure oven front and door opening is square and
flush with each other. Some oven front styles must be welded together at assembly,
in these cases the welds must be ground smooth to eliminate sealing problems. Refer
to oven front detail drawing for oven front style.
2.
Install packing insulation around front side panel pockets. Dependent on oven
temperature design a bead of either Oven Cement or Silver Seal (refer to manual for
temperature limitations) must be applied around the inside perimeter of the front
where roof and side panels lap.
3.
Slide front section in place making sidewall panel lap joints simultaneously, and using
a 3 or 4 foot level or plumb-bob, plumb the oven front and fasten to the sidewall
panels with self drilling screws at the top portion only. See body detail drawings for
particulars.
4.
With a tape line, measure diagonally corner to corner at top of front and square up
accordingly, check door opening in the same fashion. Run additional fasteners in
fastening front to side panels, one at midpoint and one at the bottom.
5.
Final oven front mounting is achieved by securing the oven front mounting angles
located at the base of each door post to the factory floor. Drill 5/8” holes in the
concrete factory floor for 5/8” WEJ-IT anchors supplied with field ship. Insert anchor
with washer and nut, with the nut at the top of the anchor lightly tap anchor into hole
using top of nut so threads are protected. Drive in anchor till nut makes contact with
angle and tighten down nut.
6.
Connect the chain to the door, adjusting connecting rods by lowering the chains with
the pneumatic cylinder.
7.
Remove door roller rests before the following adjustments.
8.
Raise the door and level it with the eye bolts, approximately 1" from floor.
9.
Adjust the positions of the sprockets that carry the chains holding the door as follows:
Move the eye bolts in the slots to the front of the door. Next, move the top sprockets
so that the centerline of the chain is vertical from the door when the door is pushed up
tight against the oven front. The positions of the sprocket and eye bolt should create a
pendulum causing the door to swing in towards the oven front.
10.
Lower the door so it is 1/2" from the floor. Push the door against the front, making sure
that the pins/rollers on the door do not interfere with the roller guides. Push the door
flush against the front using a man lift or fork truck.