Fuel System/Stanadyne DB2 or DB4 Fuel Injection Pump CTM3274 (01JUL99) 40-31 Saran Liter Engines 060799 PN=276 STANADYNE DB2 OR DB4 FUEL INJECTION PUMP REMOVAL IMPORTANT: Never steam clean or pour cold water on a fuel injection pump while the -UN-23MAY95 pump is running or while it is warm. Clean the fuel injection pump, lines and area around the pump with cleaning solvent or a steam cleaner. CD7315 Disconnect shut-off system and speed control rod. Disconnect fuel return line (A). Disconnect fuel supply line (B). Disconnect fuel injection lines (C). IMPORTANT: When loosening fuel pressure lines at fuel injection pump, be sure not to turn fuel injection pump fittings.
Turning of -UN-07MAR95 these fittings may cause internal pump damage. Plug all open connections on pump and fuel lines. Do not use fibrous material. CD7204 Remove plug or cover from mounting hole in timing gear cover. Remove nut (D) and washer securing the fuel injection pump drive gear to pump shaft. Attach special tool JDG670A to gear (or KJD10159 to -UN-17FEB95 timing gear cover). Remove the three nuts attaching fuel injection pump to engine front plate. Turn cap screw of special tool clockwise until pump shaft is loosened from conical seat of drive gear.
On engine CD30317 with 37 kW auxiliary drive only, remove the center forcing screw from JDG670A tool and tighten the two cap screws until gear is pulled against cover. This will avoid that gear becomes disengaged from upper idler gear. Check for the presence of timing marks. If necessary, mark both the pump and the front plate. -UN-07MAR95 Pull the fuel injection pump backward from the three studs. NOTE: When removing fuel injection pump be careful not CD30218 to lose pump shaft Woodruff key. CD,3274,G40,17 -19-01FEB94 40 31