31
TRANSIT WINDOW MAINTENANCE
A. General Care
The vinyl tracks on which the vent and screen slide must be kept clean and clear of dust and sand.
Vacuum and wipe clean with a soft cloth or sponge occasionally. For easier sliding, spray or wipe with
silicone.
B. Removing the Screen Frame
Open vent completely. Remove that portion of the Top Screen Track which is on the stationary side.
Slide screen to the stationary side, lift up into space and remove screen.
C. Rescreening
Remove the spline that holds the screen in. On a table or board, nail 1" blocks of wood 1/4" thick on
the inside of each side (to hold the frame square and straight) with the side having the open groove
upward. Place screen cloth over frame, place spline on top of cloth above the groove. Keep the screen
taut in the direction you are working while forcing spline and cloth into groove. Trim the excess
screen with a sharp edged razor or knife.
D. Replacing the Screen
Insert screen up into space (on stationary side), then down into track. Slide it all the way to the vent
side and replace the removed portion of the Top Screen Track.
E. Removing the Vent
With the screen removed (see above), remove that portion of the Top Vent Track which is on the
stationary side. Slide the vent to the stationary side, lift up into space and remove vent.
F. Replacing the Vent
Insert vent up into space (on stationary side), then down into track. Slide it all the way over the vent
side, and replace the removed portion of the Top Vent Track. If vent is being replaced because of
breakage, be sure all pieces of glass are removed from tracks and frame of window before replacing
vent.
G. Replace and Reglaze Stationary Section
Lift the vinyl glazing bead at a corner and pull out by hand. (Note how the vinyl locks into the frame
so you will know how to reinstall.) Remove cracked glass or bits of broken glass. Slide the vent to its
open position. Pull the vent gasket out of the frame about 6" at the top and bottom. With a hammer
and a piece
of 1 x 4 x 6, tap the mullion to the vent side about 3/4". Remove the black glazing tape
and replace with new glass setting tape 1/16" thick and 1/4" wide or with a non-hardening glazing
putty applied 1/8" thick.
The new piece of glass must overlap the aluminum frame 1/4" on all sides. Order replacement glass
from Hehr International, Inc., Chesaning, Michigan. After the glass has been centered in its frame, tap
the mullion back to its original position. Replace the screws and the glazing bead. Reinstall the vent
gasket.
Glass Replacement Procedure
A. If glass is broken
Remove vinyl glazing bead, remove all glass.
Metal retainer clip can be removed with pli-
ers.
B. If glass is intact
Remove vinyl glazing bead, remove metal re-
tainer clip, starting at end of clip using putty
knife and hammer. Drive down and at a slight
angle until clip pops out. See detail.
C.
Clean out old bedding compound.
D.
Apply new bedding compound. Install glass,
setting blocks, metal clips (hammer and plas-
tic or wood blocks required) and vinyl glaz-
ing bead.