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Perkins — Weekly

A Perkins service procedure — check it applies to your exact model before use.

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Before you start

  • If the priming pump does not function it is pos-
  • Per NFPA 25 standards, the fuel tank level must
  • Both fuel filters can be primed by top filling,
  • This shield must be replaced when finished.

Procedure

  1. Make certain the condition that caused air has been cor- rected. Do not attempt to loosen fuel injector lines to eliminate air.
  2. Operate the hand priming pump located on the bottom of the fuel lift pump on the engines' right side. Note: If the priming pump does not function it is pos- sible the cam lift lobe is up. Turn the engines crankshaft one full turn clockwise. Retry priming pump.
  3. Locate the air vent valve (black plastic valve with screw driver slot) in the primary fuel filter base. Slightly open the vent, operate the hand primer until fuel is observed coming from vent. If this cannot be accomplished, there is an obstruction between the filter and tank which includes the lift pump. Locate and repair before any attempt to proceed.
  4. Once fuel is observed a

Source: manual:Manual_PDFP_MP-5_C13196.sflb.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.