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Home›Repair guides›Primary Fuel Filter Installation

Perkins — Primary Fuel Filter Installation

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

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Before you start

  • Ensure plastic tube assemblies are installed in original positions
  • Failure to connect correctly will allow contamination to enter the fuel system

Procedure

  1. Ensure fuel filter base is clean and free from damage
  2. Install a new filter element to fuel filter canister
  3. Install new O-ring seals to connections
  4. Install connections to primary fuel filter and tighten to 20 N·m
  5. Install plugs with new O-ring seals and tighten to 20 N·m
  6. Install vent screw assembly with new O-ring seal
  7. Install water in fuel sensor with new O-ring seal
  8. Position the assembly of primary fuel filter onto mounting bracket
  9. Install bolts to primary fuel filter assembly and tighten to 50 N·m
  10. Remove plugs from plastic tube assemblies
  11. Connect plastic tube assemblies to connecting ports
  12. Connect OEM harness assembly to water in fuel sensor
  13. Turn the fuel supply to the ON position
  14. Turn the battery disconnect switch to the ON position
  15. Remove the air from the fuel system

Specs & torque values

  • Connection torque: 20 N·m (177 lb in)
  • Bolt torque: 50 N·m (37 lb ft)

Source: manual:Disassembly and Assembly-SM-PERKINS 850 SERIES 854E-E34TA AND 854F-E34T.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.