Maintenance

Maintenance

Preventive Maintenance

Schedule

The operating conditions of your particular system determine how often maintenance is required. Establish a preventive maintenance schedule by recording when and what kind of maintenance is needed, and then determine a regular schedule for checking your system.

Wet-Cups

See FIG. 3. Check the wet-cup (AC) daily. Keep the wet-cup 1/3 filled with Graco Throat Seal Liquid (TSL) or compatible solvent.

Using the supplied wrench (108), adjust the packing nut weekly so it is just snug; do not overtighten. Torque to 135-169 N•m (100-125 ft-lb).

Flushing

• Flush before changing colors, before fluid can dry in the equipment, at the end of the day, before storing, and before repairing equipment.

Flush at the lowest pressure possible. Check connectors for leaks and tighten as necessary.

Flush with a fluid that is compatible with the fluid being dispensed and the equipment wetted parts.

1.Follow Pressure Relief Procedure, page 12.

2.Remove spray tip and soak in solvent.

3.Place siphon tube in grounded metal pail containing cleaning fluid.

4.Set pump to lowest possible fluid pressure, and start pump.

5.Hold a metal part of the gun firmly to a grounded metal pail. Trigger the gun until clean solvent dis- penses.

6.Remove gun from hose. See gun manual to further clean gun.

7.Follow Pressure Relief Procedure, page 12, and remove fluid filter and soak in solvent. Replace filter cap.

Corrosion Protection

Always flush the pump before the fluid dries on the dis- placement rod. Never leave water or water-based fluid in the pump overnight. First, flush with water or a compati- ble solvent, then with mineral spirits. Relieve the pres- sure, but leave the mineral spirits in the pump to protect the parts from corrosion.

Hydraulic Systems

CAUTION

Keep the hydraulic supply system absolutely clean at all times. Blow out hydraulic lines with air and flush thoroughly with solvent before connecting to the hydraulic motor, to avoid introducing harmful contami- nants into the motor. Plug the hydraulic lines immedi- ately when they are disconnected.

Do not exceed 54°C (130°F) hydraulic oil tempera- ture.

Carefully follow the manufacturer's recommendations on reservoir and filter cleaning, and periodic changes of hydraulic fluid. Use only Graco-approved hydraulic oil. Order Part No. 169236, 5 gal. (19 liter) or 207428, 1 gal. (3.8 liter). Do not substitute a lower grade oil or one with a lower flash point.

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Hitachi 1800 important safety instructions Maintenance

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.