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Figure 7
How to Adjust Gas Valve Governor/Regulator
1. Check gas injector (manifold) pressure as
follows. Refer to
Figure 7.
2. Remove screw plug from inside pressure tap.
3. Connect a “U”-tube manometer (or similar
pressure gauge) to the injector (manifold)
pressure tap.
4. Start tumbler and note pressure once flame is
burning. Remove regulator cap and adjust
regulator screw until the injector pressure per
applicable table is achieved. Replace regulator
cap. Refer to
Figure 6.
Figure 8
T137K
1 Burner Tube Attaching Screws 6 Spud Holder Nut
2 Burner Support Bracket 7 Spud Holder
3 Pressure Tap 8 Pressure Tap (Alternate location)
4 Gas Valve 9 Manometer
5 Gas Valve Flange
1
2
4
3
5
6
7
8
9
REQUIRED
INJECTOR
PRESSURE
T025KE1D
1 Size Stamped on Orifice
T025K
1
BURNER INJECTOR
(ORIFICE)