PLATE-RETAINER 1177249 - Caterpillar

Remove Hydra Mechanical Shutoff Control
1. Disconnect tube assemblies (2) from diverter valve (3) and disconnect tube assemblies (1) from the shutoff control. 2. remove the bolts to remove cover (5), tube (4) and the diverter valve as a unit from the shutoff drive housing assembly and the shutoff control. 3. Disconnect tube assemblies (6), (7) and (9) from the shutoff control. Remove the bolts and hydra mechanical shutoff control (8) from the shutoff drive housing assembly. 4. Remove coupling (10) from the end of the shutoff drive gear.Install Hydra Mechanical Shutoff Control
1. Install coupling (2) on the end of the shutoff drive gear. 2. Put hydra mechanical shutoff control (1) and the gasket in position on the shutoff drive housing assembly. Make sure the shaft of the shutoff control is correctly engaged with the coupling and install the bolts to hold the shutoff control in position.3. Connect tube assemblies (3), (4) and (5) to the shutoff control. 4. Put clean engine oil on the O-ring seals and install tube (6) in the bottom of the shutoff control. Put cover (7) and the diverter valve as a unit in position on tube (6) and the shutoff drive housing assembly. Install the bolts to hold these in position. 5. Connect tube assemblies (8) to the shutoff control and connect tube assemblies (9) to the diverter valve.Disassemble Hydra Mechanical Shutoff Control
Start By:a. remove hydra mechanical shutoff control 1. Remove the bolts and remove actuator valve (1) from the pressure control valve.
There is spring pressure on cover (2).
2. Remove the bolts and remove cover (2) from the actuator valve body. 3. Remove springs (4), spacer (5) and valve assemblies (3) from the valve body. 4. Remove tube assembly (7) from the shutoff control.5. Remove pressure control valve (6) from the shutoff control. 6. Put identification marks on valve assemblies (12) and (13) for assembly purposes. Remove rack shutoff valve (12) and air inlet shutoff valve (13) from the pressure control body assembly. Remove three O-ring seals from each valve.7. Remove plug (11) to remove pilot valve (10) and spring (9) from the pressure control body assembly.8. Remove manual shutoff valve (8) as a unit from the pressure control body assembly. 9. Loosen nut (16) to remove knob (17) and nut (16) from valve (14). Remove adapter (18) and spring (19) from valve (14). Remove O-ring seal (15) from adapter (18). 10. Remove seal (20) from adapter (18). 11. Remove eight bolts (22) to remove gerotor pump group (21) from the shutoff control housing assembly. 12. Use Tool (A) to remove ring (24) and the washer from the carrier assembly shaft. Do not remove bolts (23) at this time. 13. Remove carrier assembly (25) from the gerotor pump group. 14. Remove dowels (27) to remove weights (26) from carrier (25). Remove pin (28) and use a press to remove shaft (29) from carrier (25). 15. Remove washer (30) from the pump group. 16. Remove the two bolts (23) to remove cover assembly (31)