Máy đào HuynDai R250 - P3 5

... 3-2 3The oil from the front and rear pump flows through the neutral oil passage, bypass oil passage ... MOTORARM1BOOM2SWINGTRAVEL(LH)TRAVEL(RH)OPTIONBOOM1BUCKETARM2dr2~dr8BUCKET CYLINDERBOOM CYLINDERXBkXBp1STRAIGHTTRAVEL SPOOLGROUP 5 COMBINED OPERATION25073HC21 3-2 4When the swing and boom functions are operated, simultaneously the swing spool and boom spoolschanged. ... MOTORARM1BOOM2SW...

Ngày tải lên: 27/10/2012, 10:55

... Plug3 Plug4 O-ring5 Spool6 Shim7 Spring8 Spring seat9 Stopper10 Spring11 Plug12 Rod seal13 O-ring14 Push rod15 Plate16 Bushing17 Joint assembly18 Swash plate19 Adjusting nut20 Lock nut21 O-ring22 ... Insert25 Boot26 Handle27 Switch assembly28 Screw29 Switch assembly30 Switch cover40 Boot 2-7 1CROSS SECTION14072SF80 2-7 22. FUNCTIONSFUNDAMENTAL FUNCTIONSThe pilot valve is a valve that co...

Ngày tải lên: 27/10/2012, 10:55

... SYSTEMGroup 1 Hydraulic Circuit 3-1 Group 2 Main Circuit 3-2 Group 3 Pilot Circuit 3-5 Group 4 Single Operation 3-1 3Group 5 Combined Operation 3-2 3 GROUP 1 HYDRAULIC CIRCUITSECTION ... Accumulator36 Accumulator37 Stop valve38 Port relief valve39 Port relief valve40Selector valve 3-1 25073HC01

Ngày tải lên: 27/10/2012, 10:55

... hydraulic tank through the control valve and the oilcooler.To oil coolerSuction filter(290LC-7) 3-2 3-3 All oil from each actuator returns to the hydraulic tank through the control valve.The bypass ... flow filterCheck valve(1)5.0kgf/cm2Check valve(2)3.0kgf/cm2Check valve(3)1.5kgf/cm2Oil cooler25073HC02 3-4 3. DRAIN CIRCUITBesides internal leaks from the motors and main pump, the oil...

Ngày tải lên: 27/10/2012, 10:55

... LEVER(RH)HYDTANKLINEFILTERSAFETYSOLENOID VALVEMAX FLOW CUT OFFSOLENOID VALVEPm2MPm2Pm1Pm1BUCKET CYLINDERBOOM CYLINDER25073HC08 3-1 2When carrying out the combined operation of swing and boom or arm of the left control valve, ... boost solenoid valveLine filterMax flow cut off solenoid valveSwing speed reducing valve25073CI03 3-6 BUCKET CYLINDERBOOM CYLINDERARM CYLINDERTRAVEL MOTORSWING...

Ngày tải lên: 27/10/2012, 10:55

... R2FRONTPUMPREARPUMPMAKE UP VALVERELIEF VALVEBOOM HOLDING VALVEBUCKET CYLINDERBOOM CYLINDER25073HC11 3-1 5When the LH control lever is pulled back, the arm spools in the main control valve are ... R2FRONTPUMPREARPUMPXAa1XAa2XBa1XBa2Aa1Ba1PaLXBa2XAa2ARM1MAKE UPVALVERELIEFVALVEARM HOLDING VALVEBUCKET CYLINDERBOOM CYLINDER25073HC13 3-1 6When the LH control lever is pushed forward, the arm s...

Ngày tải lên: 27/10/2012, 10:55

... 5-8 GROUP 5 TRAVEL SPEED CONTROL SYSTEMTravel motorRegulatorRegulatorMain control valveArm 1Boom

Ngày tải lên: 27/10/2012, 10:56

... Set spring656 Block cover708 O-ring722 O-ring723 O-ring724 O-ring725 O-ring728 O-ring730 O-ring732 O-ring733 O-ring734 O-ring735 O-ring755 O-ring756 O-ring763 O-ring801 Nut814 Snap ring836 Snap ... sizeSAE6000psi 3/4"SAE2500psi 2 1/2"PF 3/4 - 20PF 1/4 - 15PF 1/4 - 15PF 1/4 - 15PF 1/4 - 15PF 1/4 - 14PF 1/2 - 19PF 3/4 - 20.521072MP01 2-2 MAIN PUMP(1/...

Ngày tải lên: 27/10/2012, 10:55

... 511K1C1CP2P2L1155167P2CP2551561521511P2L1AtlBtlSECTION C-C SECTION D-D SECTION E-ESECTION F-FSECTION G-GSECTION J-J SECTION P-PSECTION K-KSECTION L-LSECTIONL1-L116625072MC02 2-2 42. HYDRAULIC CIRCUITXBp1XBp2Dr2FrFlBPPBPNR1 ... A-A SECTION B-BSECTION I-ISECTION H-HSECTION M-M SECTION N-N975101 Casing A102 Casing B103 Straight travel valve104 Boom priority valve153 Plug154 Plug155 Plug158 Pl...

Ngày tải lên: 27/10/2012, 10:55

... Roller bearing451 Spring pin464 Plug468 Plug469 Plug471 O-ring472 O-ring485 O-ring487 O-ring488 O-ring491 Oil seal702 Piston706 O-ring707 O-ring712 Brake spring742 Friction plate743 Separate plate744 ... theresult, the pressure in chamber(g) equals(Ps).Ps×A1=Fsp+Ps×A2Ps=Fsp A1-A2 64mng76gP=P2P=Ps③④(210LC-7) 4-2 9(210LC-7) 4-4 9 2-5 5BRAKE SYSTEMControl valve swing brake systemThis is t...

Ngày tải lên: 27/10/2012, 10:55