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MQ Power DCA800SSK — Fuel Priming

Maintenance · fuel system

For the MQ Power DCA800SSK, from the MQ Power service manual.

Applies to: MQ Power DCA800SSK

Before you start

  • DO NOT loosen overflow valves (item 7, left bank or item 8, right bank) or fuel will drain back from the fuel pump(s) to the tank of the unit.

Procedure

  1. Loosen bleeder screw (item 1, right bank) of fuel filter.
  2. Operate priming plunger (item 2, left bank) until hard; fuel from bleeder screw (item 1, right bank) free of air.
  3. Tighten bleeder screw (item 1, right bank) of fuel filter.
  4. Loosen bleeder screw of injection pump inlet joint (item 3, left bank).
  5. Operate priming plunger (item 2, left bank) until hard; fuel from bleeder screw (item 3, left bank) free of air.
  6. Tighten bleeder screw (item 3, left bank).
  7. Tighten priming pump plunger (item 2, left bank).
  8. Loosen bleeder screw (item 4, right bank) of fuel filter.
  9. Operate priming plunger (item 5, right bank) until hard; fuel from bleeder screw (item 4, right bank) free of air.
  10. Tighten bleeder screw (item 4, right bank) of fuel filter.
  11. Loosen bleeder screw of injection pump inlet joint (item 6, right bank).
  12. Operate priming plunger (item 5, right bank) until hard; fuel from bleeder screw (item 6, left bank) free of air.
  13. Tighten bleeder screw (item 6, right bank).
  14. Tighten priming pump plunger (item 5, right bank).
  15. Ensure all bleed screws are secure and start the engine.

Source: MQ Power 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.

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