[1] – Park machine safely. (See procedure in Section 10, Group 5.)
[2] – Allow engine to cool
[3] – Clean the injection pump lines and area around the pump using a parts cleaning solvent or steam cleaner.
[4] – Slowly loosen fuel line connectors (A) at injection pump to release pressure in the fuel system. When loosening connectors, use a backup wrench to prevent delivery valves (B) from turning.
[5] – Loosen fuel line nuts (C) at fuel injector nozzle.
[6] – Remove injector line nuts at the injection pump and the injector nozzles and remove injector lines.
[7] – Disconnect the leakoff hose (D).
[8] – Remove nuts (E) and leakoff line assembly (F).
[9] – Remove bronze washers (G).
[10] – Remove injector nozzle assembly (H).
[11] – Test injector nozzles. (See Test Fuel Injection Nozzle in Section 230, Group 15.)
[12] – Install injector nozzles in the reverse order of removal.
a. Replace bronze washers.
b. Replace heat protectors.
c. Tighten injector nozzles to specification.
d. Tighten nuts (E) to specification.
