SERVICE MANUALROBERT BOSCH MODEL MW INJECTION PUMPSection 11INJECTION PUMP DELIVERYVALVE HOLDER MUST BE HELDWITH A WRENCH TO PREVENTMOVEMENT WHEN HIGHPRESSURE PIPING IS REMOVEDFROM INJECTION PUMP. IF THEDELIVERY VALVE HOLDER ISROTATED DURING INJECTIONPIPE REMOVALIINSTALLATION,FUEL LEAKAGE MAY RESULT.CG-9871Figure 20. - Removing Injection Pipes8.Disconnect lubricating oil line from injection pumpand intake manifold line to aneroid line.9.Remove ground and power supply from electricshutoff solenoid.10. Disconnect electric shutoff assembly from injectionpump by removing capscrew from shutoff lever andmounting bracket from engine.11. Disconnect fuel return hose at flex connector locatedjust below center of intake manifold. Fuel returncheck valve is part of replacement injection pumpassembly. Low pressure fuel lines must remain withthe engine as they are not part of replacementinjection pump assembly. Fuel return hose betweenfuel return check valve and engine fuel returncontains an orifice restriction fitting to limit fuel returnflow. Cap openings to keep dirt out of fuel system.12. Disconnect fuel lines and hoses to supply pump.Disconnect final filter hose to injection pump at finalfilter header. Cap openings to keep dirt out of fuelsystem.13. Remove injection pump drive gear access covercapscrews, washers and bolts (Figure 21).Figure 21. - Drive Gear Access Cover14. Remove injection pump drive gear bolts andwashers from injection pump hub and remove pumpfrom engine (Figure 22).CGES-185-3PRINTED IN UNITED STATES OF AMERICAPage 17
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
