SUPPORT AS 3208850 - Caterpillar

Personal injury can result from hydraulic oil pressure and hot oil.Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.Make sure all of the attachments have been lowered, oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Identify all hydraulic lines as they are removed for reinstallation purposes. Cap and plug all lines and fittings to prevent any contaminants from entering the system.1. Release the pressure in the hydraulic system by slowly loosening the fill cap on top of the hydraulic oil tank.2. Drain the hydraulic oil from the hydraulic oil tank into a suitable container. The capacity of the hydraulic oil tank is 72 liters (19 U.S. gal). 3. Mark or identify all electrical wires for installation purposes. Disconnect the two electrical wires from neutral start switch (1). Remove the cable ties that fasten the wiring harness to the pumps.4. Remove the cotter pin and pin that fastens control cable (3) to plate (2).5. Loosen jam nut (5), and remove control cable (3) from bracket (4). Move the control cable out of the way.6. Remove the two nuts and bolts, and remove plate (2) from the propel pump.7. Remove the two bolts, and remove bracket (4) from the propel pump. 8. Disconnect hose assemblies (7) and (8) from vibratory pump (6). Cap and plug immediately. 9. Disconnect hose assemblies (9) and (10) from propel pump (11). Cap and plug immediately. 10. Disconnect hose assemblies (12) from propel pump (11). Cap and plug immediately. 11. Disconnect hose assemblies (13) and (14) from the vibratory pump. Cap and plug immediately. 12. Disconnect the electrical connector for electrical connectors (15) from the main wiring harness. 13. Disconnect hose assemblies (16) and (17) from the propel bump. Cap and plug immediately. 14. Remove two bolts (19), and move vibratory flushing valve (18) out of the way. 15. Attach a suitable lifting bracket and lifting strap to vibratory pump (6) and propel pump (11) as shown.16. Remove two bolts (20), and remove the vibratory pump and propel pump as a unit from the pump drive. The weight of the vibratory pump and axle propel pump as a unit is 65 kg (143 lb).17. After the vibratory and propel pumps have been removed, remove the two nuts and bolts that fasten the pumps