DRUM GP-DRIVE & VIBRATORY 1865232 - Caterpillar

Hydraulic Tank
Illustration 1 g03660758
Hydraulic Oil Tank
(1) Case drain return port
(2) Implement return port
(3) Pressure reducing valve drain port
(4) Temperature sensor port
(5) Pilot valve drain port
(6) Suction port
(7) Breaker relief valve port
(8) Filler cap
(9) Hydraulic oil tank
(10) Case drain screen
(11) Implement return screen Hydraulic oil tank (9) is located at the rear of the right fender just in front of the fuel tank.Hydraulic oil tank (9) is sealed in order to prevent contamination to the hydraulic oil. Suction port (6) supplies hydraulic oil to the hydraulic pumps. Oil flows from the hydraulic components into hydraulic oil tank (9) through four passages. Pressure reducing valve drain port (3) collects oil from the pressure reducing valve. Oil from pressure reducing valve drain port (3) flows directly into hydraulic oil tank (9).Implement return port (2) collects implement return oil that drains through the inlet manifold. Oil from implement return port (2) flows into hydraulic oil tank (9) through implement return screen (11). Implement return screen (11) stops any debris that is in the hydraulic oil.Case drain return port (1) collects return oil from the following sources:
Case drain from the implement pump
Case drain from the steering pump
Case drain from the steering motorOil from case drain return port (1) flows into hydraulic oil tank (9) through case drain screen (10). Case drain screen (10) stops any debris that is in the hydraulic oil.Pilot valve drain port (5) collects pilot return oil from the pilot control valves. Oil from pilot valve drain port (5) flows directly into hydraulic oil tank (9).