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,

Dinstall or clean the spray tip.

1.Engage the gun safety latch.

2.Open the bypass valve.

3.Turn the ignition key to OFF.

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

5.Engage the gun safety latch.

6.Open the pressure drain valve, having a container ready to catch the drainage. Leave the 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, wrap a rag around the tip guard retaining nut or hose end coupling and VERY SLOWLY loosen the part to relieve pressure gradually, then loosen completely. Now clear the tip or hose.

1.Prepare the Fluid

a.Prepare the fluid according to the fluid manu- facturer’s recommendations.

b.Place the pump or suction tube into the fluid container.

2.Starting the Sprayer

a.Open the bypass valve to make startup easier. In the open position, the valve lever is parallel to the body of the valve. See Fig 6. Close the filter drain valve.

b.Turn the pressure control knob counterclock- wise until all spring tension is relieved. You will be able to feel it. The sprayer is now set at the lowest pressure setting. Turning the knob fur- ther will cause it to fall off.

c.Attach fuel hose from tank.

d.If the engine is cold, close the choke by mov- ing the choke lever. See Fig 6.

3.Turn and hold the ignition key to START until you hear the engine “catch”, then release the key to RUN. See Fig 6. If the engine does not start, open the choke a little (move lever). If the engine floods, open the choke all the way and try again.

e.After the engine is warm, gradually open the choke lever (move choke lever) and close the bypass valve. See Fig 6.

CHOKE

ON/OFF

SWITCH

AIR FILTER

PRESSURE

CONTROL

KNOB

BYPASS

VALVE

Fig 6

7874b

 

NOTE: In cold weather, run the engine for about 15 minutes with the bypass valve open before starting the displacement pump, to help avoid hydraulic motor stalling.

f.Follow the Pressure Relief Procedure Warning on page 10, to shut off the sprayer.

WARNING

To stop the engine in an emergency, turn OFF the ignition key. Close the bypass valve if possible. See Fig 6. Then follow the Pressure Relief Proce- dure Warning on page 10.

10 307616

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Graco Inc 231733, 230975, GH 733 Operation, Pressure Relief Procedure, Prepare the Fluid, Starting the Sprayer
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230975, 231733, GH 733 specifications

Graco Inc. is widely recognized for its innovative fluid handling products and diverse range of equipment designed for various applications. Among its product lineup, the Graco GH 733 is a standout piece of machinery, particularly known for its performance in high-demand environments. The model number 231733 refers to a specific configuration of the GH 733, and 230975 points to another variant, showcasing Graco's commitment to customization and versatility in their offerings.

One of the main features of the Graco GH 733 is its powerful engine, designed to deliver efficient performance even in the most challenging conditions. The machine boasts a robust hydraulic system that facilitates the movement of fluids at high pressures, making it ideal for applications such as painting, coating, and other fluid dispensing tasks. This ensures that users can achieve superior results with precision and speed.

The GH 733 is equipped with advanced technologies that enhance usability and functionality. For example, it incorporates an electric start feature, reducing the hassle of manual cranking and enabling quick operation. Moreover, Graco has designed this model with an intuitive control panel that allows users to easily adjust settings and monitor performance, reducing the learning curve for new operators.

Another critical characteristic of the GH 733 is its portability. The unit is designed with features such as sturdy wheels and a compact frame, which allow it to be easily transported across job sites. This mobility is particularly beneficial in construction and industrial environments, where equipment needs to be moved frequently.

Durability is a cornerstone of the Graco GH 733 design. Constructed from high-quality materials, the machine is built to withstand the rigors of demanding work environments. Graco's commitment to quality ensures that users receive a reliable product that minimizes downtime and maintenance costs.

In summary, the Graco GH 733, along with its configurations like 231733 and 230975, exemplifies efficient design and advanced technology. With a focus on performance, ease of use, portability, and durability, it meets the needs of professionals looking for high-quality fluid handling solutions. The combination of these features makes the GH 733 a preferred choice for many applications across various industries. Whether for large-scale projects or detailed work, this equipment stands out as a testament to Graco's engineering excellence.
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