Technical Service Manual
MKG Series Gas Griddles
Page 12
L22-296 Rev 0 (4/08)
Photo 23
Photo 24
Photo 25
Photo 26
4.6
ORIFICE/FUEL TYPE CONVERSION
Poor performance may be an indication of a
clogged or damaged burner orifice that needs
replacement. In addition, the gas type of the
appliance may need to be changed to another fuel,
see section 1.3.1 for approved gases.
4.6.1
Changing Burner Orifice
To replace clogged, or convert burner orifices follow
the steps below: Refer to section 1.3.2 to check the
proper orifice size for the appliance.
•
After the upper front panel has been
disassembled, remove the mounting screws(E),
then slide the manifold bracket(D) off of the
burner manifold, See Photo 22.
•
Disconnect the manifold supply tubing at the
brass compression fitting(A). the manifold will
slide out of the burners and runner tube, See
Photo 23. Note the thread engagement of the
orifices for reinstallation, See Photo 24.
•
While securing the manifold in a safe manner,
remove the two main burner orifices(A), and the
runner tube orifice(B). Take care to not damage
the brass fittings or pipe threads, See Photo 24.
•
Prior to installing the new orifices, insure that
the fittings are not clogged, and reapply thread
sealant to all male threads where necessary.
Install new orifices onto manifold as stated
above, if no further service is required replace
manifold to original position.
If Converting Fuel Type, continue here:
•
Change orifices as described in section 4.6.1.
•
Change pilot assembly, see section 4.4.
•
Change the gas supply regulator (D, photo’s
1a & 2a), a new regulator will require thread
sealant on all mating male threads.
•
Perform a gas leak test, and check operating
gas pressure of the appliance, see section
1.3.1. Insure that burners are operating in
accordance with section 4.5.
•
Place the appropriate information label stating
the change in fuel type of the appliance in
close proximity to the data plate, or other
prominent area.
4.7
MAIN BURNER REPLACEMENT
If a burner needs to be removed for replacement
or cleaning, use the following procedures:
•
Remove the manifold, see section 4.6.1.
•
Remove mounting screws(C) from the pilot
cover plate(A), and the burner seal plate(B),
See Photo 25.
Note:
Some burners may require two(2) pilot cover
plates to be removed to access the burner(s).
