Hitachi important safety instructions Dura-Flo 1800 Pumps with NXT Model 3400 Air Motors

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Technical Data

Key

A0.7 MPa, 7 bar (100 psi) air pressure or 10.5 MPa, 105 bar (1500 psi) hydraulic oil pressure

B0.5 MPa, 4.9 bar (70 psi) air pressure or 7.5 MPa, 75 bar (1050 psi) hydraulic oil pressure

C0.3 MPa, 2.8 bar (40 psi) air pressure or 4.2 MPa, 42 bar (600 psi) hydraulic oil pressure Test Fluid: No. 10 Weight Oil

Dura-Flo 1800 Pumps with NXT Model 3400 Air Motors

Cycles per Minute

 

psi (MPa, bar)

9

16

25

32

41

48

57

140

 

 

 

 

 

 

 

 

 

 

 

 

 

1800 (12.6, 126)

 

 

 

 

 

A

 

 

 

 

A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

120

 

 

1600 (11.2, 112)

 

 

 

 

 

 

 

 

 

 

1400 (9.8, 98)

 

 

 

 

 

B

 

100

Air

 

 

 

 

 

 

 

 

 

 

Fluid Pressure

 

 

 

 

 

 

 

 

 

Flow (scfm)

1200 (8.4, 84)

B

 

 

 

 

 

 

80

 

 

 

 

 

 

 

 

1000

(7.0, 70)

 

 

 

 

 

 

 

 

800

(5.6, 56)

 

 

 

 

 

 

 

60

 

 

 

 

 

C

 

 

 

 

 

 

 

 

 

 

 

 

600

(4.2, 42)

 

 

 

 

 

 

 

40

 

 

 

 

C

 

 

 

 

 

 

 

 

400

(2.8, 28)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20

 

 

 

 

 

 

 

 

 

 

 

 

 

200

(1.4, 14)

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

 

 

 

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

 

 

 

 

(3.8)

(7.6)

(11.4)

(15.2)

(19.0)

(22.8) (26.6)

(30.4)

 

Fluid Flow in gpm (lpm)

Dura-Flo 1800 Pumps with NXT Model 6500 Air Motors

psi (MPa, bar) 3500 (24.1, 241)

3000 (21.0, 210)

Cycles per Minute

9

16

25

32

41

48

57

A

A

250

200

Fluid Pressure

2500 (17.2, 172)

2000 (14.0, 140)

1500 (10.3, 103)

B

B

150 AirFlow

(scfm) 100

1000 (7.0, 70)

500 (3.5, 35)

0

C

C

 

50

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

(3.8)

(7.6)

(11.4)

(15.2)

(19.0)

(22.8) (26.6)

(30.4)

Fluid Flow in gpm (lpm)

311826B

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Contents II 2 G Dura-FloPumpsContents Dura-Flo Pumps with NXT Air Motors ModelsFirst Digit Fourth Digit Fifth DigitP15LSB, a P15LCD, aUHMWPE/2 Ptfe P15MCD, a P15MSB, aLower Model, Packings MPa, bar psi Dura-Flo Pumps with Viscount Hydraulic MotorsFire and Explosion Hazard Moving Parts Hazard Flush Before Using Equipment InstallationMounting Accessories GroundingHydraulic Line Accessories Air Line AccessoriesFluid Line Accessories VA Y Typical Installation, Air-Powered Pumps KeyAY T XLR Typical Installation, Hydraulic-Powered Pumps KeyOperation Pressure Relief ProcedureStartup Bleeder Valve and Wet-Cup ShutdownMaintenance Problem Cause Solution TroubleshootingRequired Tools RepairDisconnect the Lower Reconnect the Lower Reconnect the Lower101 105 106 104 103 108 102 107 Parts101 102 103 104 105 106 107 108 115 116 Wrench Collar AdapterParts 311826B Motor Model Pump Model Kg lb DimensionsNXT Model Mounting Hole LayoutsViscount NXT Model Fluid Outlet Pressure Technical DataPump Air or Hydraulic Oil Consumption Dura-Flo 1800 Pumps with NXT Model 6500 Air Motors Dura-Flo 1800 Pumps with NXT Model 3400 Air MotorsDura-Flo 2400 Pumps with NXT Model 6500 Air Motors Dura-Flo 2400 Pumps with NXT Model 3400 Air MotorsDura-Flo 2400 Pumps with Viscount Hydraulic Motors Dura-Flo 1800 Pumps with Viscount Hydraulic MotorsFluid Outlet Pressure Hydraulic Oil Consumption Graco Information Graco Standard Warranty

1800 specifications

The Hitachi 1800 series excavators represent a significant leap in construction and earthmoving technology, designed to enhance productivity while ensuring operator comfort and environmental sustainability. These excavators are emblematic of Hitachi's commitment to advancing machinery engineering, equipped with an array of features and technologies that optimize performance.

One of the standout characteristics of the Hitachi 1800 is its powerful yet fuel-efficient engine. The machine is equipped with a Tier 4 compliant engine, which meets stringent emission regulations while delivering increased power output. This leads to enhanced digging performance and better fuel economy, reducing operational costs for excavating contractors.

The hydraulic system of the Hitachi 1800 is another remarkable feature. It utilizes a closed-center load sensing system that automatically adjusts hydraulic flow based on the load being handled. This technology allows for precise control during operations, whether digging, lifting, or swinging, and improves overall operational efficiency. The responsiveness of the hydraulic system aids in increasing the speed and accuracy of work cycles.

Operator comfort is prioritized in the Hitachi 1800 with its ergonomically designed cab. It offers excellent visibility, reduced noise levels, and adjustable seating, which enhance the operator's experience during prolonged use. Advanced climate control systems ensure that operators remain comfortable in various environmental conditions. The intuitive control layout, combined with a multi-function joystick, allows operators to manage all functions with minimal effort.

Additionally, the Hitachi 1800 incorporates advanced telematics technology, which allows operators and fleet managers to monitor machine performance in real-time. This technology aids in predictive maintenance, helping reduce downtime and extend the life of the excavator.

The excavator’s durability is another core characteristic. It features a robust undercarriage designed to withstand harsh operating environments, and high-strength materials are used across the machine to enhance longevity and reliability.

In summary, the Hitachi 1800 series excavators combine powerful engines, advanced hydraulic systems, and operator-centric designs to provide a robust and efficient solution for construction and earthmoving projects. With their state-of-the-art technology and commitment to sustainability, they represent an excellent investment for professionals looking to enhance productivity and performance on the job site.