Cummins N14 STC, Celect, Celect Plus – Service Manual 003-010   Rocker Lever Bushings

Install the rocker lever in an arbor press.

Use rocker lever block and mandrel set (1), Part Number ST-691, and a support (2) to push the bushing out of the rocker lever.

WARNING  When using solvents, acids, or alkaline materials for cleaning, follow the manufacturer’s recommendations for use. Wear goggles and protective clothing to reduce the possibility of personal injury.

WARNING  Wear appropriate eye and face protection when using compressed air. Flying debris and dirt can cause personal injury.

Use a 240 grit, or finer, emery cloth to remove any rough edges or burrs from the bore of the rocker lever.

Use solvent to clean the rocker levers.

Dry with compressed air.

NOTE: If cracks in the rocker lever are suspected, complete a magnetic crack inspection. Refer to Procedure 003-013 in Section 3.

Measure the inside diameter of the rocker lever bore.

Rocker Lever Bore Inside Diameter

NOTE: If the rocker lever bore is worn larger than the maximum specification, the rocker lever(s) must be replaced.

NOTE: The oil holes in the rocker lever bore (1) and the oil holes in the bushing (2) must be aligned correctly to supply oil to the adjusting screws, the crossheads, and the injector link.

Install the bushing in the valve rocker lever with the split clinch joint (1) toward the top of the lever.

The short “slot hole” (2) must be aligned with the oil hole to the adjusting screw. The long “slot hole” (3) must be aligned with the oil hole to the lever pad.

Install the bushing in the injector rocker lever with the split clinch joint toward the top of the lever.

The square hole must be aligned with the oil hole to the adjusting screw. The slotted hole must be aligned with the oil hole to the injector link socket.

Use an arbor press and rocker lever block mandrel set, Part Number ST-691, to push the bushing into the rocker lever.