Ito power generator parking need to pay attention to what matters?
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Stop the engine for a few minutes before parking
It is important that the engine be idled for 3 to 5 minutes before stopping to allow the lubricant and cooling water to take away heat from the combustion chamber, bearings, and shaft. This is especially important for turbocharged engines .
Bearings and oil seals in turbochargers are all affected by high exhaust temperatures. When the engine is running, this heat is carried away by the circulating oil. However, if the engine suddenly stops, the booster temperature may increase by as much as 56°C. The result of overheating will cause the bearing to jam or the oil seal to fail.
Do not make the engine idle for too long
Prolonged idle operation is detrimental to the engine because the temperature of the combustion chamber is too low to allow complete combustion of the fuel. This will cause carbon deposits, which will clog the injector orifice and Piston Ring and may trap the valve.
If the temperature of the engine coolant becomes too low, some of the unburned diesel will flush the lubricating oil on the cylinder wall and dilute the oil in the crankcase, causing all the moving parts in the engine to suffer from poor lubrication.
If the engine is not in use, stop it.
 
Turn the key switch to the "off" position to turn off the engine
For engines with an electric shut-off valve, the engine can be shut down completely by turning off the key switch or by turning the manual valve. The key switch controls the electric shut-off valve. As long as the manual control knob on the shut-off valve is not locked in the open position, turning off the key switch can always stop the engine. If you use the manual control knob on the electric shut-off valve, turning the knob counterclockwise turns the engine off. The key switch must not be used to shut off the valve before the engine is fully stopped.
Note: Never place the key switch or control knob in the open position or in the operating position when the engine is stopped. The high position fuel tank will allow diesel to flow into the cylinder, causing hydraulic lock.
Stop any engine immediately if any parts are faulty
In fact, all failures always give the operator some warning before parts fail and the engine is damaged. Some alert and experienced operators noticed alarm signals (sudden drop in engine oil pressure, abnormal sound, etc.) and stopped the engine immediately, saving many engines.

Excavator Main Valve

Excavator Main Valve Including Hydraulic Main Relief  Valve, PPC Valve ,  Unloading Valve , Safety Oil Suction Valve ,  By-pass Valve , Combined Shunt Valve .

Excavator Main Valve

1. Excavator Main Valve  Parts number and List For Komatsu Excavators 

709-70-51200

PC120-5/PC200-3

709-40-50100

PC200-6(6D95)

723-40-51102

PC200-6(6D102)/PC200-7

723-40-91102

PC200-6(6D102)/PC200-7

723-40-50401

PC200-6(6D102)

723-40-56302

PC200-6(6D102)

723-40-56100

PC200-6(6D95)

723-40-56900

PC200-7

723-30-90101

PC120-6

723-30-50101

PC120-6

4372038

EX200-5/ZX200/SH240

420-00257

EX200-5/ZX200/SH240

723-30-56100

PC120-6

723-50-55100

PC120-6 

702-73-01520

PC120-6

723-20-61101

PC60-7/PC75/PC78

2420-1225A

SH120/SH200A3/HD820/EC210

21113-50306

SH300/HD1250/HD1430

708-2L-24122

PC200-6

723-40-90200

PC200-6/PC300-6/PC400-6

723-40-90101

PC200-6/PC300-6/PC400-6

708-25-04311

PC200-5

6E-5933

E320

6E-1915

E320

6E-2914

E320

723-46-43200

PC200/300-6

723-46-44100

PC300/PC400-6

159-7732

E320B/E320C/E320D

4372034

control valve

723-46-48100

serivce valve

4242176

EX200-2



2. Excavator Main Valve  Manufactures

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Excavator Main Valve Manufactures


3. Excavator Main Valve Brand  

   Kawasaki Hydraulic Final Main Valve

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   Bosch Rexroth  Hydraulic Main Valve

   KPM Hydraulic Main Valve   

B45017C For Excavators made in Janpan

KPM Main Valve KMX15RA /B45017C For Excavators made in Janpan 

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Jining Kunpeng Construction Machinery Equipment Co., Ltd , https://www.excavatorenginepart.com