Cummins/Onan — Vaporizer Adjustments
Adjustments · LPG vaporizer
From a Cummins/Onan service manual — check it applies to your exact model before use.
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Procedure
- Place vaporizer in a vise or suitable clamp.
- Attach air hose from approximately 75 psi (517.5 kPa) air supply to inlet.
- Attach pressure gauge capable of reading over 7 psi (48.3 kPa) to outlet.
- Back off adjusting screw until only one or two threads are engaged; apply air pressure.
- Turn pressure adjusting screw in slowly until gauge reads 7 psi.
- Tighten lock nut on pressure adjusting screw.
- Turn off air pressure and remove gauge and air line.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Working pressure 7 psi (48.3 kPa).
Source: Cummins/Onan service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.