TIP AS 4720825 - Caterpillar

1. Disconnect cable from lever (1).2. Remove air line (3).3. Remove wire seal (2).4. Remove two bolts (4) that hold fuel ratio control to governor.5. Pull out and up on the fuel ratio control to remove it from the governor.Install Fuel Ratio Control
1. Install fuel ratio control making sure the plunger is engaged with the groove in rack stop collar on the governor.2. Install two bolts (5) that fasten the fuel ratio control to the governor.3. Install a new wire seal (2).4. Install air line (4) to fuel ratio control.5. Connect cable (1) to lever (3).6. Make an adjustment of the fuel ratio control. See FUEL RATIO CONTROL SETTING in TESTING AND ADJUSTING.end by: a) install hoodDisassemble Fuel Ratio Control
start by: a) remove fuel ratio control1. Remove three bolts (1), housing (5) and cover (2). Remove lever (4) from screw (3). Remove screw from housing.2. Remove seal from housing (5) with tooling (A).3. Remove two bolts (9) and cover (8) from housing.4. Remove bolt assembly (6) from housing.5. Remove dowel (11), washer (7), diaphragm (13) and retainer (12) from the bolt.6. Remove bushing (10) from housing with tooling (B).Assemble Fuel Ratio Control
1. Install the bushing (2) in housing (1) with tooling (A).2. Install retainer (5), diaphragm (6), washer (7), and dowel (4) on the bolt (3).3. Install heavier spring (8) and bolt assembly (9) in housing.4. Put the spring (10) and cover (11) in position on the housing and install two bolts that hold them. When installing the cover (11) make sure the outer edge of diaphragm is in the groove in the face of the cover.5. Install the seal in housing with tooling (A).6. Put screw (12) in the housing.7. Put cover (14) and housing (13) in position and install the bolts that hold it.8. Install lever (15) on screw (12). If the rubber diaphragm has damage, the fuel ratio control will not operate correctly.end by: a) install fuel ratio control