Cummins/Onan — FUEL CONTROL ARM

For these Cummins/Onan models: 12, 0MDJC-3CR, 12.0MDJF-53CR, 15.0MDJF-3cR, 3omDJaiR, 4.0MCCK-3cR, 6.0MDJE-53CR, 6.5MCCK-3CR, 6.OMDJE-S18R, 612-4792, 7.SMOJE-18R, ISOMDJF-3GR.

Applies to: Cummins Onan 12 0Mdjf 53Cr, Cummins Onan 15 0Mdjf 3Cr, Cummins Onan 3Omdjair, Cummins Onan 4 0Mcck 3Cr, Cummins Onan 6 0Mdje 53Cr, Cummins Onan 6 5Mcck 3Cr, Cummins Onan 6 Omdje S18R, Cummins Onan 7 Smoje 18R, Cummins Onan Isomdjf 3Gr, Cummins Onan Mcck Spec H, Cummins Onan Mdje 8, Cummins Onan Spec H, Cummins Onan Tsmdje 3Cr

Procedure

1. 1. Locate injection pump on service side of engine and remove necessary sheet metal and hardware to make pump accessible. injector nozzles, both ends. Cap all lines and fittings using extreme care to keep all fuel system components clean adapter assembly. Position fuel control shaft and yoke as shown in 2 Carefully clean injection pump assembly and place it in a clean place. Retain shims between Pump and adapter as they are needed for reassembly. AND SEAL fai tat. A ny plece of cto he injection eytem may stop your unit. When opening any part of the fuel system beyond the they are removed. inaaling new or used pats, tush them thoroughly, and install white sil we SHAFT POSITION OF LAT FOR REMOVING ANO INSTALLING PUMP TO ADAPTER (OVERLOAD FUEL PLUNGER ‘ADJUSTED AT FACTORY CHANGE Lock Nur oe ADAPTER ‘Boss ADAPTER Dowel PIN HOLES (2) DOWEL PIN ADAPTER MOUNTING Poe Moulins “f Hager ‘)(aRyce ONLY) ADAPTER ASSEMBLY REMOVAL Remove fuel control arm. Remove four mounting bolts and lift adapter of to tap assembly with lead or plaste hammer in order to loosen adapter from gasket.
2. 3. Discard old gasket and clean area on engine block. A new gasket is required for reassembly of adapter to prevent oil leaks. Thoroughly clean adapter assembly before replacing new bearings and oil seal. removing and installing bearings and seal rs Do not clamp in a vise unless machined surfaces are protected from damage by the REPLACEMENT PROCEDURE After adapter assembly has been removed from the engine, replace the bearings and seal on the yoke shaft as follows:
3. 1. Referring to Figure 3-48, press shaft and yoke assembly towards center of adapter until shaft and bottom bearing slips out bottom end. Be fe eq 1 iz | SEAL | 2 We areca 1 eS str Pp aaens yore} > | | BEARING DRIVER
4. 420. 0377 420.0376

Source: manual:932-0405 Onan Marine Genset MCCK MDJA MDJC MDJE MDJF Training Manual (07-1979).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.