11
PLANNED MAINTENANCE
—QUARTERLY INSPECTION
Insulated Door Panel and Door Seal Inspection
Door panels and bulb seals should be regularly
checked for ice buildup, damage, and wear. Ice
buildup in and around the bulb seal gaskets and door
path can impede the door seal and performance,
cause erratic operation, potentially damage
mechanical systems, allow air infiltration, and
increase energy use. Bulb seals should last 36-48
months with proper stay roller pressure/adjustment.
A repair kit is available for rips or tears to the
thermoplastic exoskeleton of the door panel.
1. Move the door to the fully closed position.
IMPORTANT: Operate the door with the drive
motor to ensure the panels and
seals are positioned and com-
pressed as in normal use.
2. Remove power to the control panel by placing
the fused disconnect in the OFF position.
The disconnect must be in the OFF position and
properly locked and tagged before performing the
following procedure.
3. Release the door panel(s) from the drive chain
with the chain release assembly to allow manual
movement of the panel(s) for inspection.
4. Inspect the hardware used to attach each panel
to its respective trolleys and both sides of each
door panel for loose, worn, missing, and
damaged items.
Replace or repair any missing, worn, or damaged
hardware, components, or seals. (See Figure 25,
26, and 28)
5. Inspect the end seal around the perimeter of
each panel. The end seals must be securely
adhered to the panels, not cracked or damaged.
Repair as necessary. (See Figure 28)
Figure 28
6. Inspect the floor sweep along the bottom edge of
each door panel. The cover should not be frayed,
torn, or loose. Replace or adjust as necessary.
Figure 29
7. Make sure a short foam block is installed in the
end of each top panel bulb seal. Replace any
block if
it’s missing, torn, or damaged. (See
Figure 29)
8. Manually move the door to the fully open
position.
9. Inspect the bulb seals along the back side of
each panel. The seals should not be worn, torn
or damaged. Replace as necessary. (See Figure
30)
Figure 30
10. Check the floor sweep seal along the bottom
edge of each panel. Because there is a sweep
around each panel face, you will need to use
your fingers to verify the seal along the floor on
both sides of the panel. The seal below the door
panel should be a full seal with the floor and no
gaps along the entire width of the panel.
Floor sweep seals are normal wear items and will
need to be replaced approximately every two
years, depending on usage and local
environment. Replace as necessary.
If an adjustment to any floor sweep seal is
necessary, see
“DOOR PANEL FLOOR SWEEP
SEAL ADJUSTMENT
” on page 17 for adjustment
procedures.
11. Verify that there is a tight seal between the bulb
seals and the back side of each door panel. The
door panels should depress the bulb seals
between ¼” – ½”.
Standard Perimeter
Elastomer seal
Top bulb seal
foam end block
Bulb Seal
Top bulb seal
foam end block
Bulb Seal
Bulb Seal
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