hydraulic system mannul液压系统手册.pdfVIP

WorkingMediumManagement

Inordertoachievehigherefficiency,preventdamageandensurethestability,

commissionandmanagementworkshouldbedone.Itisveryimportanttoprotect

workingmedium.Therefore,maintainandcommissionshouldkeeptothefollowing

step:

1.Fluidtype:VG46/40℃hydraulicmedium.

2.Viscosityrange:41.4-50.6cst.Thisrangeisinthetemperatureof40℃.Medium

producercanprovidetemperaturecurveoftheviscosity.

3.Cleanness:seetechniquerequirementNAS1638-*degree.

4.Periodicalcheck:

Initialperiod:500hours.

Normallywork:2000hours.

Sampleoftestis1liter.Askforthemediumproducertocheck.

5.Changemedium:changemediumafterrunningevery4500hours.Sometimesthe

testresultisgoodenough,butitisbesttochangeallworkmediums.

6.Checkitemeachday:

1)Colorchanging:waterorairimmersingcancausecolorchanging.

2)Odor:pollutionandmetamorphosecancauseodor.

3)Foreignbodyimmersion:foreignbodyimmersioncanshortenthemedium

usinglife.

4)Waterremoving:ventthewaterfromthedraineratthebottomoftheoilstorage.

Dotheworkoncepermonth.

Trim

1.Piping

1)Flushthepipefully,makesurethatthecleannessreachesNAS1638-*

degree.

2)Prepareenoughframes.Distancweentheframesis500mm-1000mm.

3)Haveenoughoverpressureresistant:about1.25-1.5timesofworking

pressure.

2.Electricappliance

1)Motorrotarydirection:accordingtothearrowheadinthenameplateorthe

rotarydirectionintheschematic