Illustration 1 g00847833 (1) Pilot oil filter The oil delivery from the pilot pump flows through pilot oil filter (1) and into the components in…

Illustration 1 g01230561 Pilot pump The pilot pump is a gear type pump that supplies oil flow to the pilot system. The pilot pump is…

Illustration 1 g03443860 (1) Swing brake (2) Displacement change valve (left travel motor) (3) Displacement change valve (right travel motor) (4) Line (pilot oil from…

Illustration 1 g03367609 (1) Machine ECM (2) Engine speed dial (3) Switch panel (4) Clench pressure sensor (attachment) (5) Manual low idle switch (6) Implement…

Main Hydraulic Schematic Illustration 1 g03435379 (1) Swing motor (2) Left travel motor (3) Right travel motor (4) Bucket cylinder (5) Stick cylinder (6) Travel…

ReferenceFor testing and adjusting of the hydraulic system, refer to Testing and Adjusting, “Excavator Hydraulic System” for your machine. ReferenceFor systems operation of the electronic…

Illustration 1 g00721434 Relief valve locations (A) Main relief valve (B) Boom cylinder line (head end) (C) Boom cylinder line (rod end) (D) Stick cylinder…

Illustration 1 g01242804 Flow meter tool layout (1) Swing motor (2) Connector at swing motor (3) 6V-9840 Swivel tee (4) Makeup line (swing motor) (6)…

Introduction Adjust the negative flow control if the flow test results differ greatly from the specification. Adjustment Procedure Illustration 1 g02100279 Pump Compartment (1) Adjustment…

This test measures individual pump flow at the pump while a fixed negative flow control pressure is sent to the main pump regulator. Each pump…