Halls SILVERLINE 86 LEAN TO, Руководство пользователя

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7. Roof Vent
Remember, glass is FRAGILE ! Handle with care using gloves.
Working on a flat surface, cut four pieces of gasket ( 138 ) as in fig. 11 so that the edges of
the glass are completely covered by the gasket. Do not stretch. Cutting the gaskets slightly
oversize will ensure a tight fit at the corners.
Place one length of gasket onto the bottom edge of the glass, fit vent bottom bar (
915 ).
Place centrally over the glass. Knock down with a wooden,rubber or hide mallet with the
glass held vertical, supporting the free edge on a wooden block as in TT .
Repeat at the opposite glass edge with vent top bar ( 981 ) making sure the part is the
correct way up.
Repeat the other two sides , making sure they are the correct way round, n oting the hole
nearest the end of the roof vent side bar is at the top nearest the ridge.
Apply a small amount of silicon sealant to each corner joint to seal join in gasket.
Assemble the corners of the frame by means of the four self-tapping screws (
1106
) as in
XX and YY , straightening the bars if bowed.
Check the diagonal measurements for squareness. Adjust if necessary and tighten the
screws.
Bed gaskets down onto frame on both sides of the glass using a flat wooden stick, as in UU .
Slide the top bar of the roof vent into the mating portion at the end of the ridge bar and
slide along ridge bar into position required as in
VV
.
If you have difficulty sliding the roof vent into place, the parts may be lubricated with a little
petroleum jelly or grease.
Loosely fit the roof vent stay (
983 ) to the approximate middle of the roof vent bar and the
sill bar (picture SS) using self-tapping screws ( 229 ) as in WW .
Adjust roof vent sill bar with vent in closed position.
If the roof vent catches on the top
o f the glazing bar, the nut holding this bar may
be slackened off and the glazing bar moved slightly.
The nuts holding the roof vent sill (SS) should be left loose for adjustment when fitting
the roof vent.
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