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Cummins/Onan — Check Fuel Pipe

A Cummins/Onan service procedure — check it applies to your exact model before use.

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Before you start

  • CAUTION: Stop the engine when attempting the check and change prescribed above.

Procedure

  1. 1. If the clamp (1) is loose, apply oil to the threads and securely retighten it.
  2. 2. The fuel pipe (2) is made of rubber and ages regardless of the period of service. Change the fuel pipe together with the clamp every two years.
  3. 3. However, if the fuel pipe and clamp are found to be damaged or deteriorate earlier than two years, then change or remedy.
  4. 4. After the fuel pipe and the clamp have been changed, bleed the fuel system.

Tools required

  • Oil for lubrication

Source: manual:981-0533 KUBOTA Z402-B Service Manual (9-2000).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.