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M414038
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Specific Conversion Procedures
How to Convert Gas Valve from Regulated to
Unregulated
NOTE: Conversion from regulated to unregulated
is only needed when regulated tumblers were
ordered, but unregulated tumblers were needed.
1. B-M gas valve:
(120 Pound Models)
Refer to Table 2.
a. Disconnect electrical power from tumbler.
Close gas shut-off valve to tumbler. Refer to
Figure 2.
b. Remove converter cover screw. Invert brass
converter and install with breather hole down.
Reinstall converter cover screw. Refer to
Figure 4.
c. Change injector size as required by the
appropriate table according to How to
Change Injector (Orifice) Size.
d. Commission tumbler for use.
2. Johnson GM2000 gas valve:
(170 Pound Models)
Refer to Table 3.
a. Disconnect electrical power from tumbler.
Close gas shut-off valve to tumbler. Refer to
Figure 2.
b. Loosen screws on regulator adjustment knob,
then turn knob clockwise. When knob no
longer turns, retighten screws. Refer to
Figure 3.
c. Change injector size as required by the
appropriate table according to How to
Change Injector (Orifice) Size.
d. Commission tumbler for use.
Figure 3
TMB1272N
TMB1272N