Operation

Pressure Relief Procedure

WARNING

SKIN INJECTION HAZARD

The system pressure must be manually relieved to prevent the system from starting or spraying accidentally. Fluid

under high pressure can be injected through the skin and cause serious injury. To reduce the risk of an injury from injection, splashing fluid, or moving parts, follow the Pressure Relief Procedure whenever you:

Dare instructed to relieve the pressure,

Dstop spraying,

Dcheck or service any of the system equipment,

Dor install or clean the spray tip.

1.Lock the gun trigger safety.

2.Close the red-handled bleed-type master air valve (E, required in your system). See Fig. 3 on page 13.

3.Unlock the gun trigger safety.

4.Hold a metal part of the gun firmly to the side of a grounded metal pail, and trigger the gun to relieve pressure.

5.Lock the gun trigger safety.

6.Open the drain valve (F, required in your system), having a container ready to catch the drainage.

7.Leave the drain valve open until you are ready to spray again.

If you suspect that the spray tip or hose is completely clogged, or that pressure has not been fully relieved after following the steps above, very slowly loosen the tip guard retaining nut or hose end coupling and relieve pressure gradually, then loosen completely. Now clear the tip or hose.

Packing Nut

Before starting, fill the packing nut 1/3 full with Graco Throat Seal Liquid (TSL) or compatible solvent. See your separate pump manual.

WARNING

To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure at left.

The packing nut is torqued at the factory and is ready for operation. If it becomes loose and there is leaking from the throat packings, relieve pressure, then torque the nut as specified in your separate pump manual. Do this whenever necessary. Do not overtighten the packing nut.

Flush the Pump Before First Use

The pump is tested with lightweight oil, which is left in to protect the pump parts. If the fluid you are using may be contaminated by the oil, flush it out with a compatible solvent. See Flushing on page 14.

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Hitachi 232437 Operation, Pressure Relief Procedure, Packing Nut, Flush the Pump Before First Use
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232437 specifications

The Hitachi 232437 is a versatile piece of machinery designed to meet the demands of various industrial applications. Known for its robustness and reliability, this equipment has become a mainstay in numerous sectors, including construction, manufacturing, and logistics.

One of the standout features of the Hitachi 232437 is its powerful engine. Equipped with advanced technology, the engine delivers a remarkable output while ensuring optimal fuel efficiency. This not only reduces operational costs but also contributes to a lower environmental footprint, making it a responsible choice for environmentally conscious operators. The machine is designed to minimize emissions, adhering to stringent regulations, and promoting sustainability in industrial operations.

The Hitachi 232437 incorporates cutting-edge hydraulic systems, which provide enhanced performance and precision. The hydraulic components are engineered for responsiveness, allowing for smooth control during heavy lifting and excavation tasks. This technology is particularly advantageous in situations that require delicate maneuvers, improving safety and efficacy on job sites.

Another key characteristic of the Hitachi 232437 is its user-friendly interface. The control panel is designed with the operator’s convenience in mind, featuring intuitive layouts and easy-to-read displays. This facilitates quick learning for new operators and ensures that experienced users can optimize performance effortlessly. Enhanced visibility from the operator’s cabin allows for improved awareness of the surrounding environment, thus enhancing safety.

Durability is a hallmark of the Hitachi 232437. Constructed with high-quality materials, the machine can withstand harsh working conditions, making it suitable for outdoor applications. The chassis and components are resistant to wear and tear, resulting in decreased downtime and lower maintenance costs.

The adaptability of the Hitachi 232437 is another of its main draws. It can be fitted with a variety of attachments and tools, enabling it to perform a multitude of tasks, from digging to material handling. This flexibility not only maximizes the return on investment for users but also allows companies to respond swiftly to changing job requirements.

In summary, the Hitachi 232437 stands out for its powerful engine, advanced hydraulic systems, user-friendly design, durability, and adaptability. These features combine to make it a reliable asset in various industrial operations, helping businesses achieve efficiency and productivity while adhering to environmental standards.
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