Graco 230975 User Manual

Instructions -- Parts List

GH 733 Hydra--Spray

307616ZAB

Sprayer

3500 psi (240 bar, 24 MPa) Maximum Working Pressure

Model 231733, Series E

Sprayer only. Has Severe-Duty* Displacement Pump

Model 230975

Includes Sprayer 231733, Hose, Swivel, Gun, RACr X, DripLesst Tip Guard and SwitchTipt

*Severe-duty displacement pumps have an abrasion and corrosion-resistant displacement rod and sleeve. Refer to the Technical Data in manual 311762.

Important Safety Instructions

Read all warnings and instructions in this manual. Save these instructions.

9089c

Table of Contents

Warnings 2......................................

Component Identification 5........................

Setup 5.........................................

Flushing 8.......................................

Operation 10....................................

Maintenance 12..................................

Troubleshooting 13...............................

Displacement Pump Service 16....................

Symbols

Warning Symbol

WARNING

This symbol alerts you to the possibility of serious injury or death if you do not follow the instructions.

WARNING

EQUIPMENT MISUSE HAZARD

Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury.

INSTRUCTIONS

D This equipment is for professional use only.

Complete Sprayer Parts Drawing 17................

GH733 Sprayer Parts Drawing 18..................

GH733 Sprayer Parts List 21......................

Accessories 23..................................

Technical Data 23................................

Graco Phone Number 24..........................

Graco Warranty 24...............................

Caution Symbol

CAUTION

This symbol alerts you to the possibility of damage to equipment if you do not follow the instructions.

D Read all instruction manuals, tags, and labels before operating the equipment.

D Use the equipment only for its intended purpose. If you are not sure, call your Graco distributor.

D Do not alter or modify this equipment. Use only genuine Graco parts.

D Check equipment daily. Repair or replace worn or damaged parts immediately.

D Do not exceed the maximum working pressure of the lowest rated system component. Refer to the

Technical Data on page 23 for the maximum working pressure of this equipment.

D Use fluids and solvents which are compatible with the equipment wetted parts. Refer to the Tech-

nical Data section of all equipment manuals. Read the fluid and solvent manufacturer’s warnings.

D Do not use hoses to pull equipment.

D Route hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not expose

Graco hoses to temperatures above 82_C (180_F) or below --40_C(--40_F).

D Do not lift pressurized equipment.

D Comply with all applicable local, state, and national fire, electrical, and safety regulations.

D Wear hearing protection when operating this equipment.

D Do not use 1,1,1--trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or

fluids containing such solvents in pressurized aluminum equipment. Such use could result in a chemical reaction, with the possibility of explosion.

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WARNING

SKIN INJECTION HAZARD

Spray from the gun, leaks or ruptured components can inject fluid into your body and cause extremely serious injury, including the need for amputation. Fluid splashed in the eyes or on the skin can also cause serious injury.

D Fluid injected into the skin may look like just a cut, but it is a serious injury. Get immediate surgi-

cal treatment.

D Do not point the gun at anyone or at any part of the body.

D Do not put your hand or fingers over the spray tip.

D Do not stop or deflect leaks with your hand, body, glove or rag.

D Do not “blow back” fluid; this is not an air spray system.

D Always have the tip guard and the trigger guard on the gun when spraying.

D Check the gun diffuser operation weekly. Refer to the gun manual.

D Be sure the gun trigger safety operates before spraying.

D Lock the gun trigger safety when you stop spraying.

D Follow the Pressure Relief Procedure on page 10 if the spray tip clogs and before cleaning,

checking or servicing the equipment.

D Tighten all fluid connections before operating the equipment.

D Check the hoses, tubes, and couplings daily. Replace worn or damaged parts immediately. Do not

repair high pressure couplings; you must replace the entire hose.

D Fluid hoses must have spring guards on both ends, to help protect them from rupture caused by

kinks or bends near the couplings.

TOXIC FLUID HAZARD

Hazardous fluid or toxic fumes can cause serious injury or death if splashed in the eyes or on the skin, inhaled, or swallowed.

D Know the specific hazards of the fluid you are using.

D Store hazardous fluid in an approved container. Dispose of hazardous fluid according to all local,

state and national guidelines.

D Always wear protective eyewear, gloves, clothing and respirator as recommended by the fluid and

solvent manufacturer.

FUEL HAZARD

The fuel used in this unit is combustible and when spilled on a hot surface can ignite and cause a fire.

D Do not fill the fuel tank while the engine is running or hot.

EXHAUST HAZARD

The exhaust contains poisonous carbon dioxide which is colorless and odorless.

D Do not operate this equipment in a closed building.

3307616

WARNING

FIRE AND EXPLOSION HAZARD

Improper grounding, poor ventilation, open flames or sparks can cause a hazardous condition and result in a fire or explosion and serious injury.

D If there is any static sparking or you feel an electric shock while using this equipment, stop spray-

ing immediately. Do not use the equipment until you identify and correct the problem.

D Provide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid

being sprayed.

D Keep the spray area free of debris, including solvent, rags, and gasoline.

D Disconnect all electrical equipment in the spray area.

D Extinguish all open flames or pilot lights in the spray area.

D Do not smoke in the spray area.

D Do not turn on or off any light switch in the spray area while operating or if fumes are present.

D Do not operate a gasoline engine in the spray area.

D Ground the sprayer to a true earth ground with the ground wire and clamp (supplied).

D Use only electrically conductive hoses.

MOVING PARTS HAZARD

Moving parts can pinch or amputate your fingers.

D Keep clear of all moving parts when starting or operating the sprayer.

D Before servicing the equipment, follow the Pressure Relief Procedure on page 10 to prevent the

equipment from starting unexpectedly .

NOTE: This is an example of the DANGER label on your sprayer. This label is available in other languages, free of

charge. See page 23 to order.

FIRE AND

EXPLOSION HAZARD

Spray painting, flushing or cleaning equipment with flammable liquids in confined areas can result in fire or explosion.

Use outdoors or in extremely well ventilated areas. Ground equipment, hoses, containers and objects being sprayed.

Avoid all ignition sources such as static electricity from plastic drop cloths, open flames such as pilot lights, hot objects such as cigarettes, arcs from connecting or disconnecting power cords or turning light switches on and off.

Failure to follow this warning can result in death or serious injury.

READ AND UNDERSTAND ALL LABELS AND INSTRUCTION MANUALS BEFORE USE

Liquids can be injected into the body by high pressure airless spray or leaks -- especially hose leaks.

Keep body clear of the nozzle. Never stop leaks with any part of the body. Drain all pressure before removing parts.Avoid accidental triggering of gun by always setting safety latch when not spraying.

Never spray without a tip guard. In case of accidental skin injection, seek immediate

“Surgical Treatment”. Failure to follow this warning can result in amputation or serious

injury.

SKIN INJECTION

HAZARD

3076164

Component Identification

YDRA

SUCTION TUBE

ULIC RETURN LINE TO MOTOR

MOTOR RESET BUTTON

HYDRAULIC MOTOR

OUTLET FITTING

HYDRAULIC SUPPLY LINE TO MOTOR

HYDRAULIC RESERVOIR

GASOLINE FILL CAP

PRESSURE

DRAIN VALVE

DISPLACEMENT PUMP

SUCTION HOSE

Fig 1

1. Connect the Hose and Gun

a. Remove the plastic cap plug from the outlet

tee and screw an accessory, conductive or grounded spray hose onto the 1/4 npsm(f) outlet fitting. See Fig 1.

b. Connect a small diameter, 3 ft (0.9 m) whip

hose between the main hose and a spray gun, if desired, for more flexible gun movement.

HYDRAULIC PUMP

9089d

PRESSURE CONTROL KNOB

Setup

c. Don’t use thread sealant on the swiveling nut

of the hose couplings, and don’t install the

spray tip yet.

NOTE: Use thread sealant on all male threads except at

swivel unions. Swivel unions are made to self-seal, and using thread sealant prevents the swivel from turning freely.

2. Fill the Packing Nut/Wet Cup 1/3 full with Graco Throat Seal Liquid (TSL), supplied. See Fig. 2.

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3. Check the Hydraulic Oil Level

a. Unscrew the hydraulic oil fill cap. See Fig 2.

The dipstick is attached to the cap. The oil should be up to the full line on the dipstick.

CAUTION

To prevent damage to the cooling system and hydraulic pump, use only Graco Hydraulic Oil, 169236 (5 gal./20 liter) or 207428 (1 gal/3.8 liter). Other types of hydraulic oil may damage the hydraulic components.

b. Add oil as needed to the proper level. A

completely full hydraulic system contains about 5 gallons (20 liters) of oil.

Setup

GASOLINE FILL CAP

OIL DIPSTICK

ENGINE OIL FILL PLUG

PACKING NUT/ WET CUP

Fig 2

HYDRAULIC OIL FILL CAP

7871b

7872b

Fig 3

4. Check the Engine Oil Level

a. Remove the dipstick. See Fig 3.

b. Check to be sure the oil is up to the full mark

on the dipstick.

c. If oil is needed, see the chart below for the

recommended oil type and weight.

d. Crank case capacity with filter: 2.1 quarts (2.0

liters).

RECOMMENDED LUBRICATION OIL: Use a high quality detergent oil of American Petroleum Institute (API) service class SG or SH for regular use and for breaking in a new engine.

GRADE OF OIL CHART

SEASON OR TEMPERATURE GRADE OF OIL

Spring, Summer, Autumn SAE 10W--30

30_Fto0_,Winter SAE 5W--20 or 5W--30

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Setup

5. Fill the Fuel Tank

WARNING

FIRE AND EXPLOSION HAZARD

Fuel spilled on a hot surface can cause a fire or explosion and serious bodily injury and property damage. Shut off engine and let it cool before filling the tank. Carefully follow steps 5.a. to 5.c., below, being sure not to spill any fuel.

a. Close the fuel shutoff valve. See Fig 3.

b. Use only clean, fresh, well-known brands of

unleaded regular grade gasoline.The minimum octane requirements are 87 octane in the U.S.A. and 96 octane elsewhere.

c. Remove the gasoline fill cap and fill the tank.

Be sure the air vent in the fill cap is not plugged so gasoline can flow to the carburetor, then replace the cap. See Fig 3.

d. External fuel tank capacity: 6.0 gallons (22.7

liters)

e. Gasoline consumption at the maximum oper-

ating speed of 2900 RPM is about 1.3 gallons/ hour (4.9 liters/hour).

6. Grounding

WARNING

FIRE AND EXPLOSION HAZARD

To reduce the risk of static sparking, fire or explosion which can result in serious

bodily injury and property damage, ground the sprayer, all system components, and the object being sprayed as instructed under FIRE OR EXPLOSION HAZARD on page 3.

Connect the ground wire and clamp (provided) to a true earth ground. See Fig 4.

CLAMP

Fig 4

7. Flush the sprayer to remove the oil which was left in the pump after factory testing to protect the pump from corrosion. See Flushing.

8. Battery Maintenance

Always charge a new battery or a battery that has not been in use for a long period.

7873B

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Flushing

When to Flush

1. New sprayer. Y our new sprayer was factory tested with lightweight oil which was left in to protect pump parts from corrosion. Before using oil - base paint, flush with mineral spirits only. Before using water- base paint, flush with mineral spirits, followed by soapy water, then a clean water rinse.

2. Changing colors. Flush with a compatible solvent such as mineral spirits.

3. Changing from water--base to oil--base paint. Flush with soapy water, then mineral spirits.

How to Flush

WARNING

SKIN INJECTION HAZARD Follow the Pressure Relief Procedure Warning on page 10. Remove the spray

tip before flushing.

4. Changing from oil--base to water-- base paint. Flush with mineral spirits, followed by soapy water, then a clean water flush.

5. Storage. Water- base paint: flush with water, then mineral spirits and leave the pump, hose and gun filled with mineral spirits. Follow the Pressure Relief Procedure Warning, page 10. Oil - base paint: flush with mineral spirits. Follow the Pressure Relief Procedure Warning, page

10.

6. Startup after storage. Before using water- base paint, flush out mineral spirits with soapy water and then clean water. When using oil - base paint, flush out mineral spirits with fluid to be sprayed.

8. Turn and hold the ignition key to START until you hear the engine “catch”, then release the key to RUN. See Fig 5. 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.

1. Engage the gun safety latch. Remove the spray tip from the gun.

2. Pour enough clean, compatible solvent to fill the pump and hoses into a large, grounded metal pail.

3. Place the suction tube into the pail or tilt the sprayer back (it will support itself) and place the pail under the pump. Then tilt the sprayer forward to lower the pump into the pail.

4. Turn the pressure control knob counterclockwise until all spring tension is relieved. Y ou will be able to feel it. The sprayer is now set at the lowest pressure setting. Turning the knob further will remove it. Tighten the knob locknut to set. See Fig

5. Open the bypass valve. The valve lever will be parallel to the body of the valve. See Fig 5.

6. Attach fuel hose from tank to engine.

7. Close the choke by moving the choke lever. See Fig 5.

CHOKE

ON/OFF SWITCH

AIR FILTER

PRESSURE CONTROL KNOB

BYPASS VALVE

Fig 5

9. After the engine is warm, gradually open the choke lever (move lever) and close the bypass valve. See Fig 5.

10. Point the gun into the grounded metal pail and hold a metal part of the gun firmly against the pail.

7874b

CAUTION

The bypass valve must be opened when starting the sprayer to prevent damaging the starter.

3076168

NOTE: T o save the fluid in the pump and hose, trigger

the gun into the paint container or a separate clean container. At the same time, slowly turn the pressure control knob clockwise just enough to start the pump. When solvent appears, release the trigger and continue as below.

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