Komatsu PC58UU-3, Руководство по ремонту

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DISASSEMBLY AND ASSEMBLY PRECAUTIONS WHEN PERFORMING OPERATION
PC58UU-3
30-5
2
★
After replacing or flushing the hydraulic tank oil, filter element, or strainer, or when removing and
installing any hydraulic cylinder, hydraulic pump or any other hydraulic equipment or work equipment
piping, always bleed the air as follows after completion of the installation.
1. Run the engine at low idle, and extend and retract the steering, bucket, and lift arm cylinders 4 - 5
times without going to the end of the strike. (Stop approx. 100 mm before the end of the stroke.
2. Operate the steering, bucket, and lift arm cylinders 3 - 4 times to the end of the stroke, then stop the
engine and bleed the air from the plugs at the top of the hydraulic tank filler.
3. Raise the engine speed and repeat Step 2. to bleed the air. Repeat this procedure until no more air
comes out from the plugs.
4. After completing bleeding the air, tighten the plugs.
★
If the engine is run at high speed from the start, or the cylinders are operated to the end of the
stroke, the air inside the cylinder will cause damage to the piston packing.
★
After repair or long storage, follow the same procedure.
Plug: 11.3 ± 1.5 Nm {1.15 ± 0.15 kgm}