Graco Inc GH 733 Prime the Pump, Cleaning a Clogged Tip, Adjusting the Intake Valve Ball Travel

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Operation

If the motor stalls during operation, turn OFF the igni- tion key. With your hand, firmly press straight down on the motor reset button. Now try to restart the sprayer. If it will not start, refer to the separate motor manual, 307158.

CAUTION

Never use a hammer to depress the reset button, as it could cause serious internal motor damage.

4.Prime the Pump

a.Be sure the gun safety latch is engaged.

b.Don’t install the spray tip yet!

c.If the engine has not been started, follow the procedure in Step 2., page 10.

d.Disengage the gun safety latch.

e.Point the gun into a grounded metal pail and hold a metal part of the gun firmly against the pail. See the WARNING below.

f.Squeeze the trigger and slowly turn the pres- sure control knob clockwise just enough to start the pump. See Fig 6.

g.Operate the pump until all air is purged from the pump and hoses and the fluid is flowing freely from the gun.

h.Release the trigger and engage the safety latch.

i.Turn the pressure control knob counterclock- wise until all spring tension is relieved. You will be able to feel it. The sprayer is now at the lowest pressure setting. Turning the knob further will remove it.

j.Follow the Pressure Relief Procedure on page 10. Then install the spray tip in the gun as instructed in the separate gun or tip instruc- tion manual. If you are using the RAC IV supplied with this sprayer, see manual 308644.

5.Adjusting the Pressure

a.Turn the pressure control knob clockwise to increase and counterclockwise to decrease the pressure. Tighten the knob locknut to set.

b.Always use the lowest pressure that is neces- sary to completely atomize the fluid.

CAUTION

Operating the sprayer at a higher pressure than necessary wastes fluid, causes early tip wear, and shortens the sprayer life.

c.If more coverage is needed, use a larger tip rather than increasing the pressure.

d.Check the spray pattern. The tip size and angle determines the pattern width and flow rate. See the separate manual received with your gun.

CAUTION

The engine throttle has been set to a maximum of 3000 RPM. The sprayer warranty will be voided and the hydraulic pump life shortened if this adjustment is changed.

6.Cleaning a Clogged Tip

WARNING

SKIN INJECTION HAZARD

To reduce the risk of a fluid injection injury, NEVER hold your hand, body or a rag in front of the spray tip when

cleaning or checking for a cleared tip. To reduce the risk of a fire or explosion, always hold the gun firmly against the side of a grounded metal waste container when checking to see if the tip was cleared or when using a self–clearing tip.

a.Follow the Pressure Relief Procedure Warning on page 10.

b.Clean the front of the tip frequently during the day to keep the fluid from building up and clog- ging the tip. To clean, and to clear a tip if it clogs, refer to your separate gun instruction manual. If you are using the RAC IV tip guard and SwitchTip, refer to manual 308644.

7.Shutting Off the Sprayer

a.Whenever you stop spraying, even for a short break, follow the Pressure Relief Procedure Warning on page 10.

b.Clean the tip and gun as recommended in your separate gun or tip manual.

c.Flush the sprayer at the end of each work day if using water–based fluid or if it could harden in the sprayer over night. See FLUSHING, page 8. Use a compatible solvent to flush, then fill the pump and hoses with solvent such as mineral spirits to help prevent pump corro- sion. Relieve pressure!

d.For long term shutdown or storage, always fill the sprayer with mineral spirits to prevent pump corrosion. Relieve pressure!

8.Adjusting the Intake Valve Ball Travel.

a.The pump is set to handle medium volume, low viscosity fluid. To adjust the pump for higher flow or heavier viscosity fluid, disas- semble the intake valve as instructed in manual 311762 and move the ball stop pin to a higher set of holes. This increases the ball travel.

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Contents Important Safety Instructions Instructions Parts ListSymbols Table of ContentsExhaust Hazard Skin Injection HazardToxic Fluid Hazard Fuel HazardFire Skin Injection Explosion Hazard Fire and Explosion HazardMoving Parts Hazard Connect the Hose and Gun SetupComponent Identification Check the Engine Oil Level Grade of OIL ChartGasoline Fill CAP OIL Dipstick Engine OIL Fill Plug Check the Hydraulic Oil LevelFire and Explosion Hazard Battery MaintenanceGrounding Startup after storage When to FlushHow to Flush FlushingFlushing Starting the Sprayer Pressure Relief ProcedureOperation Prepare the FluidPrime the Pump Cleaning a Clogged TipAdjusting the Intake Valve Ball Travel Maintenance Problem Cause Solution Troubleshooting108 109 114 115 107 49,66 150,66,64 05 in. ± 27 mm ± Dimension aReconnecting the Displacement Pump Displacement Pump ServiceDisconnect the Displacement Pump Model 230975, GH 733 Sprayer Complete Sprayer Parts DrawingModel 231733, Series D GH733 Sprayer Parts Drawing187 183 124 153 152 141 112 113 117 108 105 106 142 107 110 137 Wheel GH733 Parts ListPage GRACO-APPROVED Hydraulic OIL Technical DataAccessories For Graco Canada Customers Graco WarrantyAdditional Warranty Coverage Graco Phone Number

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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