Wacker Neuson HI750 Series, Operator'S Manual, Page: 93 / 144

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HI750 Burner Setup—Gas
8.11 Changing the Burner from Natural Gas Burning to LP Burning
Requirements
■
Machine shut down
■
Machine cool
Background The burner is set up at the factory to burn natural gas (NG). By changing the burner
orifice and adding an air restricting washer, the burner can burn LP gas. A kit is
included with new machines with the appropriate orifice and the air restricting
washer.
Procedure Perform the procedure below to change the burner from NG to LP.
1. Shut down the machine and allow it to cool.
2. Remove the combustion head assembly. See topic Removing the Combustion
Head Assembly .
3. Remove the natural gas orifice (e) (marked “3.7”).
4. Lift the distributor plate (h) off the combustion head assembly and place the air
restricting washer (i) on the combustion head assembly as shown. Then,
re-install the distributor plate (and the air restricting washer) to the burner head
with the new LP/propane orifice (marked “2.0”).
Note: The air restricting washer must be removed when changing back to NG.
5. Affix the LP gas label to the burner.
6. Re-install the combustion head to the burner and adjust the head setting.
Result The burner is now ready to burn LP.
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e
h
Fuel
Orifice
marking
NG 3.7
LP 2.0
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i
without washer with washer