Hitachi EX40U / EX50U Mini Excavator OEM Service & Repair Manual
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Technical Manual
EX40u, 50u
585T-1-1
SECTION 1
GENERAL
CONTENTS
Group 1 Specification
Specifications ............................................ T1-1-1
Working Ranges and Machine
Dimensions for Transportation .................. T1-1-4
Engine Specification .................................. T1-1-6
Group 2 Component Layout
Main Component ...................................... T1-2-1
Electrical System...................................... T1-2-2
Relays ...................................................... T1-2-4
Monitor and Switches ............................... T1-2-6
585T-1-2
(Blank)
GENERAL / Specifications
T1-1-1
SPECIFICATIONS
(40u Type A) … Refer to INTRODUCTION (IN-01) for
the corresponding serial numbers.
Item Unit Canopy Cab
Front Attachment Boom swing type
Bucket Capacity (Heaped) m
3
0.13 (0.17 yd
3
): PCSA (0.12: CECE)
Operating Weight kg (lb) 3980 (8775) 4130 (9105)
Base Machine Weight kg (lb) 3070 (6770) 3220 (7100)
Engine − ISUZU 4LE1 25.0 kW/1900 min
-1
(34 PS/1900 rpm)
A: Overall Width mm (ft in) 1865 (6′ 1″)
B: Cab Height mm (ft in) 2570 (8′ 5″) 2640 (8′ 8″)
C: Rear End Swing Radius mm (ft in) 975 (3′ 2″)
D: Minimum Ground Clearance mm (ft in) 335 (1′ 1.1″)
E: Counterweight Clearance mm (ft in) 650 (2′ 2″) (Rubber Crawler)
F: Engine Cover Height mm (ft in) 1580 (5′ 2″)
G: Undercarriage Length mm (ft in) 2445 (8′) (Rubber Crawler)
H: Undercarriage Width mm (ft in) 1950 (6′ 5″)
I: Sprocket Center to Idler Center mm (ft in) 1955 (6′ 7″)
J: Track Shoe Width mm (ft in) 400 (16″) (Rubber Crawler)
Ground Pressure kPa (kgf/cm
2
, psi) 22.9 (0.23, 3.3) 23.8 (0.24, 3.4)
Swing Speed min
-1
(rpm) 8.3
Travel Speed (Fast/Slow) km/h (mph) 4.3/2.6 (2.69/1.63)
Gradeability % (deg.) 58 (30)
M571-11-001
F
E
C
G
I
B
D
H
J
A
GENERAL / Specifications
T1-1-2
(40u Type B) … Refer to INTRODUCTION (IN-01) for
the corresponding serial numbers.
Item Unit Canopy Cab
Front Attachment Boom swing type
Bucket Capacity (Heaped) m
3
0.14 (0.17 yd
3
): PCSA (0.13: CECE)
Operating Weight kg (lb) 3980 (8775) 4150 (9149)
Base Machine Weight kg (lb) 2900 (6393) 3070 (6768)
Engine − ISUZU 4LE1 25.0 kW/1900 min
-1
(34 PS/1900 rpm)
A: Overall Width mm (ft in) 1865 (6′ 1″)
B: Cab Height mm (ft in) 2570 (8′ 5″) 2665 (8′ 9″)
C: Rear End Swing Radius mm (ft in) 975 (3′ 2″)
D: Minimum Ground Clearance mm (ft in) 335 (1′ 1″)
E: Counterweight Clearance mm (ft in) 650 (2′ 2″) (Rubber Crawler)
F: Engine Cover Height mm (ft in) 1580 (5′ 2″)
G: Undercarriage Length mm (ft in) 2445 (8′) (Rubber Crawler)
H: Undercarriage Width mm (ft in) 1950 (6′ 5″)
I: Sprocket Center to Idler Center mm (ft in) 1955 (6′ 5″)
J: Track Shoe Width mm (ft in) 400 (16″) (Rubber Crawler)
Ground Pressure kPa (kgf/cm
2
, psi) 22.9 (0.23, 3.3) 23.9 (0.24, 3.4)
Swing Speed min
-1
(rpm) 8.3
Travel Speed (Fast/Slow) km/h (mph) 4.3/2.4 (2.69/1.62)
Gradeability % (deg.) 58 (30)
M571-11-001
F
E
C
G
I
B
D
H
J
A
GENERAL / Specifications
T1-1-3
(50u)
Item Unit Canopy Cab
Front Attachment Boom swing type
Bucket Capacity (Heaped) m
3
0.16 (0.21 yd
3
): PCSA (0.14: CECE)
Operating Weight kg (lb) 4450 (9810) 4620 (10185)
Base Machine Weight kg (lb) 3350 (6770) 3520 (7760)
Engine − ISUZU 4LE1 27.9 kW/2000 min
-1
(38 PS/2000 rpm)
A: Overall Width mm (ft in) 1865 (6′ 1″)
B: Cab Height mm (ft in) 2570 (8′ 5″) 2665 (8′ 9″)
C: Rear End Swing Radius mm (ft in) 1000 (3′ 3″)
D: Minimum Ground Clearance mm (ft in) 335 (1′ 1″)
E: Counterweight Clearance mm (ft in) 600 (2′) (Rubber Crawler)
F: Engine Cover Height mm (ft in) 1580 (5′ 2″)
G: Undercarriage Length mm (ft in) 2445 (8′) (Rubber Crawler)
H: Undercarriage Width mm (ft in) 2000 (6′ 7″)
I: Sprocket Center to Idler Center mm (ft in) 1955 (6′ 5″)
J: Track Shoe Width mm (ft in) 400 (16″) (Rubber Crawler)
Ground Pressure kPa (kgf/cm
2
, psi) 25.7 (0.23, 3.3) 26.6 (0.24, 3.4)
Swing Speed min
-1
(rpm) 7.4
Travel Speed (Fast/Slow) km/h (mph) 4.5/2.5 (2.8/1.55)
Gradeability % (deg.) 58 (30)
M571-11-001
F
E
C
G
I
B
D
H
J
A
GENERAL / Specifications
T1-1-4
WORKING RANGES AND MACHINE
DIMENSIONS FOR TRANSPORTATION
(40u)
M570-11-002
T573-01-01-001
40u Type A 40u Type B Category
Item Canopy Cab Canopy Cab
A: Maximum Digging Reach mm (ft in) 5550 (18′ 3″) ←
B: Maximum Digging Depth mm (ft in) 3400 (11′ 2″) ←
C: Maximum Cutting Height mm (ft in) 5350 (17′ 7″) 5220 (17′ 2″) 5350 (17′ 7″) 4890 (16′ 1″)
D: Maximum Dumping Height mm (ft in) 3690 (12′ 1″) 3570 (11′ 9″) 3690 (12′ 1″) 3290 (10′ 10″)
E: Overall Transport Height mm (ft in) 2570 (8′ 5″) 2640 (8′ 8″) 2570 (8′ 5″) 2665 (8′ 9″)
F: Overall Transport Length mm (ft in) 5155 (16′ 9″) 5155 (16′ 9″)
G: Minimum Swing Radius mm (ft in) 2100 (6′ 11″) 2200 (7′ 3″) 2100 (6′ 11″) 2485 (8′ 2″)
I: Blade Bottom Highest Position mm (ft in) 400 (1′ 3.7″) 400 (1′ 3.7″)
J: Blade Bottom Lowest Position mm (ft in) 365 (1′ 2.4″) 365 (1′ 2.4″)
K: Maximum Boom Swing Angle ° L 65, R 75 L 60, R 80
L: Offset Distance mm (ft in) L 780 (2′ 7″), R 800 (2′ 8″) L 800 (2′ 8″), R 800 (2′ 8″)
L(R) L(L)
GENERAL / Specifications
T1-1-5
(50u)
M570-11-002
T573-01-01-001
Item Unit Canopy Cab
A: Maximum Digging Reach mm (ft in) 5800 (19′ 2″)
B: Maximum Digging Depth mm (ft in) 3600 (11′ 10″)
C: Maximum Cutting Height mm (ft in) 5640 (18′ 6″) 5145 (16′ 11″)
D: Maximum Dumping Height mm (ft in) 3950 (12′ 11″) 3515 (11′ 6″)
E: Overall Transport Height mm (ft in) 2570 (8′ 5″) 2665 (8′ 9″)
F: Overall Transport Length mm (ft in) 5325 (17′ 6″)
G: Minimum Swing Radius mm (ft in) 2100 (6′ 11″) 2655 (8′ 9″)
I: Blade Bottom Highest Position mm (ft in) 400 (1′ 3.7″)
J: Blade Bottom Lowest Position mm (ft in) 365 (1′ 2.4″)
K: Maximum Boom Swing Angle ° L 60, R 80
L: Offset Distance mm (ft in) L 800 (2′ 8″), R 800 (2′ 8″)
L(R) L(L)
GENERAL / Specifications
T1-1-6
ENGINE SPECIFICATION
Category
Item
40u 50u
Engine ←
Manufacturer ISUZU ←
Model 4LE1PA-01 ←
Type 4 cycle, water cooled, whirl chamber
type
←
Cyl. Number − bore×stroke 4−85 mm × 96 mm (4−3.3 in × 3.8 in) ←
Piston displacement 2.179 L (132 in
3
) ←
Rated power 25.0 kW/1900 min
−1
(34 PS/1900 rpm) 27.9 kW/2000 min
−1
(38 PS/2000 rpm)
Compression ratio 21.5 ←
Dry weight 163 kg (360 lb) ←
Firing order 1−3−4−2 ←
Rotation direction Clockwise (viewed from fan side) ←
Starting system
Manufacturer HITACHI ←
Motor Solenoid pinion shift type ←
Voltage Output 12 V 2.0 kW ←
Alternator
Manufacturer NIPPON DENSO ←
Type AC type (with IC regulator) ←
Voltage Output 12 V 35 A ←
Fuel system
Type ZEXEL PFR1KX type ←
Governor Centrifugal full speed range control,
spray type
←
GENERAL / Component Layout
T1-2-1
MAIN COMPONENTS
T571-01-02-001
1 - Bucket Cylinder 6 - Hydraulic Oil Tank 11 - Solenoid Valve 16 - Swing Device
2 - Arm Cylinder 7 - Oil Cooler 12 - Travel Device 17 - Boom Swing Cylinder
3 - Boom Cylinder 8 - Radiator 13 - Pump Device 18 - Blade Cylinder
4 - Pilot Valve 9 - Engine 14 - Center Joint
5 - Control Valve 10 - Pilot Filter 15 - Fuel Tank
1
3
2
5
6
4
7
8
9
10
11
13
14
15
16
17
18
12
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Print one or all pages of your manual
$48.99
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