< ACCUMULATOR, HA01 > < 2WAY_PROPORTIONAL RCV > 28 RH LH (CLAMP) < 2WAY + ROTATING_PROPORTIONAL RCV > A < DOZER DPC VALVE, DV01 > C D 0.35L (RELEASE) LH 7 ACC SAFETY RH LH RH (ROTATOR RH-R) (ROTATOR LH-R) (RELEASE) (CLAMP) ( 2 ,A4) LH-B (2WAY),INSTEAD OF STOP VALVE ( 2 ,B4) RH-B (2WAY),INSTEAD OF STOP VALVE 41 LH-R (ROTATING) RH-R (ROTATING) D 6-2 < RCV LEVER (LH) > SWING P 34 < RCV LEVER (RH) > ARM [CLAMP] ( 2 ,Pa4) ( 2 ,Pb4) A1 26 BUCKET P BOOM [RELEASE] [ROTATING, LH-R] A2 [INSTEAD OF RCV 2WAY, ( 2 ,Pb10) 22 ] ( 2 ,Pb5) P2 FLOW G P C A D B F E P3 FLOW 8 IN ( 2 ,Pb3) ( 2 ,Pa5) ( 2 ,Pa3) P1 FLOW 1 4 2 3 UP DOWN OUT OUT SWING D 2 1 3 4 CCW CW IN DOZER ( 29 ,T3) BOOM SWING B PTO ( 29 ,P3) ARM IN PTO2 2 3 UP DOWN OUT A T BOOM T 1 4 H BUCKET P TRAVEL J F BOOM TRAVEL T BR < RCV LEVER (RH) > ARM CONNECTING SWING P ( 2 ,Pb3) 31-1 AR PaR < RCV LEVER (LH) > BUCKET 2 OUT A 2-2 PTO2 1 3 4 CCW CW IN 34 6-2 B P B ( 38 ,A3) 34 5-3 T T C 39 K3 34 5-2 J F H A B D ( 2 ,Pb10) RELIEF SETTING PR. 31-1 ( 2 ,Pa10) ( 2 ,Pa8) ( 2 ,Pb8) ( 2 ,Pa5) ( 2 ,Pa3) ( 2 ,Pb5) ( 2 ,Pa4) ORV (AR, BR) 245k at 5LPM ( 2 ,Pa10) ( 2 ,Pa8) ( 2 ,Pb8) ( 2 ,Pb4) ( 2 ,PaR) < BOOM SAFETY LOCK, BS01 > ( 2 ,PbR) E 33 ( 2 ,B8) 38 A1 A2 A3 A4 40 P 160k PS E T [ROTATOR , LH-R] ( 29 ,P3) PbR [ROTATOR ( 29 ,T3) , RH-R] T ( 38 ,A4) 22 [INSTEAD OF RCV_2WAY, OR 2-EPPR VALVE, 26 31-1 B V2 Pi1 ( 31 ,T) D [ROTATING, RH-R] ] ( 2 ,A9) ( 2 ,Pb8) < AIR CONDITIONING MODE, AC01/AC02 > I < ARM SAFETY LOCK, AS01 > ( 7 ,T) 1 A1 A2 A3 A4 PC ( 2 ,A5) T E F 32 V2 Pi1 E ( 2 ,Arm crowd) ( 2 ,B5) S1 LEGEND 42 A < TRAVEL ALARM, EA01 > P T 23 < QUICK COUPLER, HQ02 > ( 29 ,T2) H SAFETY P 7 A2 [RH, CLAMP] T K4 [LH, RELEASE] A BW Accumulator 28. Accumulator C. 2-way proportional and rotating proportional remote control valve (optional) 2-2. 5-3. 6-2. 38. 39. Main control valve Remote control valve (proportional, left-hand) Remote control valve (proportional, right-hand) 4-EPPR (Electronic Proportional Pressure Reducing) valve Quick coupling (quantity 4) 4 FW 3 BW D. Blade lifting cylinder with DPC valve (optional) 41. Blade lifting cylinder with DPC valve (without angle dozer) E. Boom cylinder (with holding valve) (optional) 33. 40. Boom cylinder holding valve Overload pressure switch ( 2 ,Pa7) ( 2 ,Pa6) 32. Dipper cylinder holding valve Quick coupler (optional) 36. 37. 27. Pressure switch Shuttle valve Solenoid valve Air-conditioning mode (not equipped) 42. Solenoid valve F. Dipper cylinder (with holding valve) (optional) G. Travel alarm (optional) H. I. B 40k PS TR 27 B. [RH] 1 P 36 T ( 30 ,C1) ( 8 ,F) 37 ( 2 ,Pb6) Remote control valve (left-hand) Remote control valve (proportional, right-hand) 2-EPPR (Electronic Proportional Pressure Reducing) valve 2-way proportional (optional) T 2-SPEED K3 P2 ( 29 ,T4) [LH] 2 FW P1 34 5-2. 6-2. 26. A. < RCV PEDAL_TRAVEL > ( 29 ,P4) A1 ACC 14 G ( 2 ,Pb7) E37C EXCAVATOR HYDRAULIC SCHEMATIC 51591453EN - 2/3