135010-0720 ZEXEL 9 411 612 304 BOSCH PUMP HOUSING 9411612304 1350100720 me741978

1. Remove two bolts (1).2. Remove fuel ratio control and gasket.Install Fuel Ratio Control
1. Put gasket (2) in position. Make an alignment with the lever in the shutoff housing with the plunger in the fuel ratio control. control.2. Install fuel ratio control (1) and the bolts that hold it.Disassemble Fuel Ratio Control
start by:a) remove fuel ratio control1. Remove solenoid (1) from the fuel ratio control. 2. Remove bolts (3) and covers (2) and (4). Remove diaphragm (11) and piston (17). Remove gasket (16) from cover (4).
Spring force is present. Slowly loosen the two bolts to release the force.
3. Remove two bolts (5), cover (6) and spring (15).
Spring force is present. Hold diaphragm assembly in position and remove pin (14).
4. Remove pin (14) and slowly release the spring force.5. Remove spring (8) and bolt (7) from housing (12).6. Remove washer (10) and diaphragm (9) from retainer (13).Assemble Fuel Ratio Control
1. Assemble washer (3), diaphragm (2) and retainer (1).2. Install bolt (4) in housing (10).3. Install spring (5), diaphragm assembly (11) and pin (6) in housing (10).4. Install spring (22) in cover (7). Install cover (7) on housing (10) with the two bolts (16) that hold it. 5. Install gasket (13) on cover (8). Install piston (14) to cover (8). Install diaphragm (15) in cover (9). 6. Put covers (8) and (9) in position on cover (7) with the bolts that hold them.7. Install solenoid (17) on the fuel ratio control. end by:a) install fuel ratio control For adjustment of fuel ratio control, see TESTING AND ADJUSTING.