EFCO 525 Series - Manual (Page 32)

SECTION VIII-FRAME INSTALLATION
A. SCREW SPLINE
[FIG. 42]
[FIG. 43]
PAGE 30
(CONT.)
C-CLAMP
OR SIMILAR
WOOD BLOCK
OR SIMILAR
In some cases it may be necessary to use a clamping device to get the
mullions together properly, if they cannot be snapped by hand. To do
this, place one clamp at the bottom of the mullions using wood blocks to
protect the extrusions. Tighten the clamp until the mullion halves begin
to snap together. Place another set of wood blocks and a clamp at the
middle of the mullions and tighten it. Then repeat the same process at
the top. Tighten the clamps until the mullion halves are pressed
together. The sight line should be 2 1/2". It may be necessary to work
from one clamp to the next several times, or move the clamps to ensure
the mullions are snapped together evenly. DO NOT try to hammer the
mullion halves together! This will dent, bend, scratch, or deform the
mullions and may cause them to leak. Ensure that the previous module
is fully anchored before installing the 2nd module.
STEP 7) SNAPPING SCREW SPLINE VERTICAL
MULLIONS TOGETHER
525 IMPACT
2 1/2"
DPS 1/2004