2. HYDRAULIC CIRCUIT 2.
HYDRAULIC CIRCUIT (HL940, HL940XT) 1 Main pump 2 Fan & brake pump 3 Main control valve 4 Remote control valve 5 Steering unit 6 Check valve 7 Safety valve 8 Boom cylinder 9 Bucket cylinder 10 Steering cylinder 11 Cut-off valve 12 Accumulator 13 Accumulator 14 Pressure sensor 15 Brake valve 16 Pressure switch 17 Hydraulic tank 18 Air breather 19 Return filter 20 By pass valve 21 Strainer 22 Oil cooler 23 Pressure sensor 24 Fan motor 25 Directional valve 26 Pump motor (opt) 27 Check block (opt) 28 Pressure sensor (opt) 29 Check valve (opt) 30 Ride control valve (opt) 31 Accumulator (opt) 32 Quick coupler cylinder (opt) 33 Solenoid valve (opt) 34 Accumulator 6-2 9 31 30 Sp T LS a1 3 S A1 SX ( ) ( ) B P ) ( DUMP A Pst ) ( ROLLBACK 34 T 10 ) ( ) ( LH RH b1 5 B.D/F B.U CRAWD DUMP T P 1 3 4 2 1.1 2.1 5 L A1 7 R T P1 T P LS 6 14 PS 27 29 23 X1 1 18 PS S P 28 PS M T P1 B1 19 20 26 E/G M 21 S1 L1 L 17 8 LH RH 23 PS PS 23 a2 a3 B1 A2 B2 A3 B3 DOWNFLOATING UP b2 b3 15 FRONT P1 A1 T1 16 P2 13 13 T2 A2 12 14 REAR 11 S1 B1 B2 S2 S3 PS C5 C6 G1 32 C1 C3 C4 PARKING T/M P B3 33 PS C2 G2 14 2 4 PS PP T1 T2 3 1 22 D 27 29 23 PS S P 28 PS M T P1 B1 26 M P A A B B T 24 2 B 25 S1 L 9406WE01 SX P ( ) ( ) DUMP ) ( ) ( ROLLBACK UP DOWNFLOATING Pst T