Flushing Of Hydraulic Circuit - Komatsu D155A-6 Assembly Instruction Manual

Assembly process No.
M-3
After the assembly work is completed, flush the hydraulic circuit.
Run the engine at mid-range speed, extend and retract each cylinders for several minutes not to reach
cylinders to the stroke end.
a Never run the engine at high idle to avoid the damage to the flushing elements.
(a) Extension and retraction of blade lift
cylinder for 5 minutes
(b) Extension and retraction of blade tilt
cylinder for 5 minutes
(c) Extension and retraction of ripper lift
cylinder for 5 minutes
(d) Extension and retraction of ripper tilt cylin-
der for 5 minutes

Flushing of hydraulic circuit

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