Allis-Chalmers — Priming Low Pressure Fuel System With Heavy Duty Filters
Maintenance
From a Allis-Chalmers operator's manual covering: 6138, 685, SERIES 6138, SERIES 670. Check it applies to your exact model before use.
Before you start
- Clean up all spilled fuel to prevent a potential fire hazard and other unsafe or slippery conditions
Procedure
- Follow steps a, b, c covering standard filter arrangements
- Disconnect load from engine
- With vent cock open, turn key on instrument panel to ON energizing electric fuel pump
- Operate pump until fuel free of air bubbles appears at vent cock
- Tighten vent cock and turn key to OFF position
Source: Allis-Chalmers operator's 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.