weber 3500 - Manual (Page 21)

Step 14
Purge air from gas lines
You will need: one burner control knob.
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DANGER
Be sure there are no sparks or open flames
in the area while purging. This can cause
fire, explosion or serious bodily injury.
Figure 22
21
Step 13
Install manifold bracket
You will need: manifold bracket.
Hook the bracket onto the manifold at the center burner
valve. Figure 21. Place your hand underneath the bracket.
Lift the bracket, manifold and cooking box slightly as a unit
and hook onto the frame brace. Figure 21 (a).
View from below
cooking box
Frame brace
Manifold bracket
Figure 21
(a)
It is necessary to bleed the air out of newly installed gas
lines. Turn gas supply ON at the source. Put on the front
burner control knob. Push the front burner control knob
down and turn to HI. When you start to smell gas, turn front
burner control knob to OFF. Figure 22.
Slide the side burner assembly into the open end of
the right frame. Route the side burner hose so that it
parallels the front of the barbecue. Loop the hose so
that it reaches the side burner connection. Attach hose.
Figure 20. Install burner grate. Check to be sure the side
burner valve is OFF. Push side burner control knob down
and turn clockwise. Figure 20.
Figure 20