Emerson Process Management 760004-A - Manual (Page 49)

Instruction Manual
760004-A
February 2002
Rosemount Analytical Inc. A Division of Emerson Process Management Maintenance and Service 4-11
Model NGA 2000 HFID
c. Burner Jet Installation
WARNING
BURNER CONTAMINATION
Do not handle internal parts of the burner
with bare hands. All tools used for main-
tenance must be free of contaminates.
1. Install new lower gasket, jet assembly
and upper gasket into burner base,
finger-tight jet nut.
2. Install new sample jet (with gasket)
and tighten.
3. Tighten jet nut.
4. Install air baffle per Figure 4-8.
NOTE
Incorrect installation of air baffle will
cause ignition failure.
5. See Figure 4-7B. Insert new o-ring
into burner base.
6. Set combustion chamber into burner
base being careful not to move air
baffle.
7. See Figure 4-7A. Insert new gasket
on combustion chamber, install
burner cap and burner cap retainer,
torque screws to 6 inch lbs.