Рет қаралды 166,803
Greetings Heavy Equipment
Follow Instagram
/ ujang_suhendar
How to Quickly Deal with the weak hydraulic problems komatsu Excavators
First do the Hydraulic Relief measurements on the All Attachment and Travel system ... if the main pressure is lacking, try adjusting the Main relief valves
Please watch the video until it's complete
This method is the same for PC200-7, PC200-8, PC200-8MO, PC210-10 excavator units
Adjust work equipment and travel relief pressure
If the relief pressure of the work equipment during travel is not
normal, adjust the main relief valves (1) and (2) as follows.
(1): F main relief valve
(2): R main relief valve
• To adjust the front pump-side main relief valve (1), remove
the cover at the lower part of the control valve.
• To adjust the rear pump-side main relief valve (2), remove
the cover at the upper part of the control valve.
• On each main relief valve, adjust only the low-pressure
settings (By adjusting the low-pressure setting, high-pressure setting is automatically adjusted).
REMARK
• Turning the holder (5) clockwise increases the pressure, and turning it counterclockwise decreases the
pressure.
• Amount of adjusted pressure per rotation of holder (5):
Approximately 20.5 MPa {209 kg / cm2} REMARK
• Turning the holder (5) clockwise increases the pressure, and turning it counterclockwise decreases the
pressure.
• Amount of adjusted pressure per rotation of holder (5):
Approximately 20.5 MPa {209 kg / cm2} REMARK
• Turning the holder (5) clockwise increases the pressure, and turning it counterclockwise decreases the
pressure.
• Amount of adjusted pressure per rotation of holder (5):
Approximately 20.5 MPa {209 kg / cm2}
#MRV
#LowPower
Excavator