FILTER GP-OIL 4153387 - Caterpillar

Retracted Undercarriage
Illustration 1 g06122260
Partial hydraulic schematic (retracted undercarriage)
(1) Idler pump
(2) Pilot pump
(3) Drive pump
(4) Variable gauge cylinders
(5) Swivel
(6) Hydraulic oil tank
(7) Pressure reducing valve
(8) Manual control valve
(9) Relief valve
(10) Line
(11) Line
(12) Auxiliary pumpDuring undercarriage retraction, oil flows from drive pump (1) and idler pump (3) to the following components: pressure reducing valve (7), manual control valve (8), swivel (5), and variable gauge cylinders (4).Oil flow from pressure reducing valve (7) flows to manual control valve (8). Oil will flow from manual control valve (8), through swivel (5), and into the rod end of variable gauge cylinders (4). Return oil from the head end of variable gauge cylinders (4) flows through swivel (5), manual control valve (8), pressure reducing valve (7), and into hydraulic oil tank (6).Extended Undercarriage
Illustration 2 g06122277
Partial hydraulic schematic (extended undercarriage)
(1) Drive pump
(2) Pilot pump
(3) Idler pump
(4) Variable gauge cylinders
(5) Swivel
(6) Hydraulic oil tank
(7) Pressure reducing valve
(8) Manual control valve
(9) Relief valve
(10) Line
(11) Line
(12) Auxiliary pumpDuring undercarriage extension, oil flows from drive pump (1) and idler pump (3) to the following components: pressure reducing valve (7), manual control valve (8), swivel (5), and variable gauge cylinders (4).Oil flow from pressure reducing valve (7) flows to manual control valve (8). Oil will flow from manual control valve (8), through swivel (5), and into the head end of variable gauge cylinders (4). Return oil from the rod end of variable gauge cylinders (4) flows through swivel (5), manual control valve (8), pressure reducing valve (7), and into hydraulic oil tank (6).Hydraulic Oil Delivery
Illustration 3 g06136151
Right side view of machine (right side of frame removed for clarity)
(1) Drive pump
(3) Idler pump
(4) Variable gauge cylinders
(5) Swivel
(6) Hydraulic oil tank
(7) Pressure reducing valve
(8) Manual control valveThe main hydraulic system delivers oil flow from drive pump (1) and idler pump (3) to manual control valve (8), and through pressure reducing valve (7). Hydraulic oil then flows through swivel (5) and into hydraulic variable gauge cylinders (4).Undercarriage Cylinder
Illustration 4 g03367102
Top view of undercarriage (fully extended)
(4) Variable gauge cylinderHydraulic cylinders expand the undercarriage and the hydraulic cylinders retract the undercarriage. Expanding the width of the undercarriage will increase the stability of the machine. Retracting the cylinders makes transportation of the undercarriage easier.
Illustration 5 g03366928
The upper structure that is perpendicular to tracks
(A) Fully retracted
(B) Fully extendedTravel the machine during an adjustment for the variable gauge undercarriage. Swing the upper structure of machine until the upper structure is perpendicular to the tracks. In this position, machine weight is evenly displaced across the undercarriage.
Illustration 6 g03367159
Location of locking pin (left side shown)
(12) Locking pinNote: Each track frame has the ability be locked in the retracted position by locking pins (12). Locking pins (12) are mechanical locks for the track frame. Locking pins (12) are to be used for transporting the machine and can be used when manual control valve (8) is in the retracted position. Locking pins (12) should not be in place when manual control valve (8) is in the extend position.There are two hydraulic cylinders that control the width of the