... 1C L K B 1C L K A 2C L K 11 1Q A 1Q B 1Q C 1Q D 2Q A 2Q B 2Q C 2Q D 14 23 22 13 21 20 A B C D 10 12 1C LR 2C L R 16 19 G1 G2 10 11 12 13 14 15 10 11 12 13 14 15 16 L S1 Sơđồ m ạch qu ét m àn ... thái ban đầu 28 Thiết kế mạch logic số Phần II: ThiÕt kÕ phÇn cøng Vcc DEM1CHIEU Vcc 11 13 15 10k 17 19 1uF 1A1 1A2 1A3 1A4 2A1 2A2 2A3 2A4 1Y1 1Y2 1Y3 1Y4 2Y1 2Y2 2Y3 2Y4 18 16 14 12 Xoá đếm 16x8 ... 14 Clock 3 CLKB CLKA G2A G2B G1 I C38 QA QB QC QD COUNTER 74LS138 10 11 12 13 14 A B C OE CS 22 Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 20 DECODE 15 74LS373 12 11 Vcc RO1 RO2 I C 42 749 3 Sơđồ quét đọc ký tù tõ...
... 1C L K B 1C L K A 2C L K 11 1Q A 1Q B 1Q C 1Q D 2Q A 2Q B 2Q C 2Q D 14 23 22 13 21 20 A B C D 10 12 1C LR 2C L R 16 19 G1 G2 10 11 12 13 14 15 10 11 12 13 14 15 16 L S1 Sơđồ m ạch qu ét m àn ... thái ban đầu 28 Thiết kế mạch logic số Phần II: ThiÕt kÕ phÇn cøng Vcc DEM1CHIEU Vcc 11 13 15 10k 17 19 1uF 1A1 1A2 1A3 1A4 2A1 2A2 2A3 2A4 1Y1 1Y2 1Y3 1Y4 2Y1 2Y2 2Y3 2Y4 18 16 14 12 Xoá đếm 16x8 ... 14 Clock 3 CLKB CLKA G2A G2B G1 I C38 QA QB QC QD COUNTER 74LS138 10 11 12 13 14 A B C OE CS 22 Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 20 DECODE 15 74LS373 12 11 Vcc RO1 RO2 I C 42 749 3 Sơđồ quét đọc ký tù tõ...
... (negative flow) (20 ) Negative flow control orifice (21 ) Boom II control valve (22 ) Stick I control valve (23 ) Center bypass passage ( 24 ) Swing control valve (25 ) Left travel control valve (26 ) Load check ... 18/03 /20 02 320 C U & 320 C LU Excavators MAC00001-UP (MACHINE) POWERED BY 3066 Engine(S Page of 10 (18) Straight travel control valve (21 ) Boom II control valve (22 ) Stick I control valve ( 24 ) Swing ... control line (left pump) (39) Inlet port (right pump) (40 ) Negative flow control line (right pump) (41 ) Left pump ( 42 ) Pilot pump (43 ) Right pump (44 ) Hydraulic tank mhtml:file://C:\V-Trac\Phu tung,bao...
... bucket) ( 24 ) Left travel control valve (25 ) Pilot control valve for stick and swing (26 ) Pilot control valve for boom and bucket (27 ) Variable swing priority valve (28 ) Pilot line (STICK OUT) (29 ) ... valves) (44 ) Pilot line (pilot oil to straight travel control valve) (45 ) Swing parking brake solenoid valve (46 ) Valve (hydraulic activation) (47 ) Pressure reducing valve for swing priority (48 ) ... solenoid valve ( 54) The pilot oil then shifts valve (46 ) The pilot oil now flows through valve (46 ) and pilot line (43 ) The pilot oil now flows to pilot control valves (5), (25 ) and (26 ) for implements,...
... ( 14) Case drain line (15) Center bypass passage (16) Return line (17) Slow return check valve (18) Hydraulic oil cooler (20 ) Left pump (21 ) Right pump (22 ) Pilot pump (23 ) Case drain filter ( 24 ) ... pump (21 ), left pump (20 ) and pilot pump (22 ) flows into case drain line (26 ) Case drain oil from swing motor (1) and travel motors (2) flows into respective case drain lines (3) and (4) The ... 18/03 /20 02 320 C U & 320 C LU Excavators MAC00001-UP (MACHINE) POWERED BY 3066 Engine(S Page of When the oil temperature is very low, most of the oil is returned through bypass check valve ( 24 ) to...
... DRAIN RETURN 126 -20 75 MOTOR GP COOLING FAN 24 2-69 04 A2 IN OUT FILTER GP RETURN 173- 343 4 A T PG TANK GP HYDRAULIC 22 7- 043 1 a1 T P2 A4 B1 Dr1 A PS1 A1 a4 L2 FILTER GP RETURN 173- 343 4 B B FILTER ... Pp2 PR bR3 JR1 Pi1 A3 A4 A5 A6 A7 P2 B B1 aR4 VALVE GP CHECK SLOW RETURN 185-03 84 B2 B3 bL3 bL4 B4 B5 aL3 B6 aR3 B7 bR2 DR1 DR B8 bR3 aR2 DR1 VALVE GP SWING BRAKE SOL 121 - 149 1 B1 PSA1 A1 B2 A2 ... GP JOINT 22 5 -45 47 E AR2 A E AL1 BL1 VALVE GP CHECK BOOM/STICK (2) 23 9-89 02 VALVE GP PILOT CONTROL TRAVEL 165-9 522 VALVE GP CHECK BOOM (2) 23 9-8906 TP TT TRAVEL(L) TRAVEL(R) BR3 aR4 MU2 AR3 A A...