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Description 

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312111A

Description

The Model 288776 2-quart (1.9-liter) pressure 
cup is designed to be used with any pressure 
feed manual spray gun when more than 1 
quart of fluid will be used. Pressure cups pro-
vide a better degree of control over atomizing 
air and fluid pressure than siphon feed equip-
ment. The Model 288776 enables you to spray 
a wider range of refinish materials and has a 
full 2-quart (1.9 liter) capacity when needed. 
The regulator assembly controls pressure of 
fluid in the cup from 0-50 psi (0.35 MPa, 3.5 
bar). The manual pressure relief valve allows 
air pressure to bleed from cup.

Set-Up

1. Connect air hose to air inlet of gun and to 

air outlet on cup regulator as shown.

2. Connect fluid hose to fluid inlet of gun and 

to cup fluid outlet as shown.

3. Connect handle to top of cup as shown.

4. It is best for the air supply line to pass 

through a Graco Air Control Unit to filter 
dirt from the air and extract water and oil. 
Connect the air supply hose to the air inlet 
fitting on cup regulator.

Note: Follow the manufacturer’s directions for the mixing and preparation of material. Strain 
material using a fine mesh screen to prevent the entry of foreign matter and the clogging of fluid 
passageways.

Never tamper with the automatic pressure 
relief valve (6b). The automatic relief valve 
limits the maximum air pressure entering the 
cup. If the relief valve does not work properly, 
over-pressurization may occur and cause the 
cup to rupture or explode. Air pressure in the 
cup must never exceed 50 psi (0.35 MPa, 3.5 
bar).

Always disconnect cup assembly from air sup-
ply and relieve pressure in cup (open manual 
relief valve counter-clockwise) before installing 
or removing canister from lid assembly.

Summary of Contents for 288776

Page 1: ...8776 50 psi 0 35 MPa 3 5 bar Maximum Regulated Fluid Pressure 50 psi 0 35 MPa 3 5 bar Maximum Air Inlet Pressure This manual is available in the following languages Contents Warnings 2 Description 3 S...

Page 2: ...top operation immediately Do not use equipment until you identify and correct the problem Keep a working fire extinguisher in the work area EQUIPMENT MISUSE HAZARD Misuse can cause death or serious in...

Page 3: ...ntainers and dispose of it according to appli cable guidelines Always wear impervious gloves when spraying or cleaning equipment PRESSURIZED ALUMINUM PARTS HAZARD Do not use 1 1 1 trichloroethane meth...

Page 4: ...utlet as shown 3 Connect handle to top of cup as shown 4 It is best for the air supply line to pass through a Graco Air Control Unit to filter dirt from the air and extract water and oil Connect the a...

Page 5: ...bar 7 To decrease paint flow pull out regulator knob and turn counter clockwise to lower cup pressure Open the relief valve to bleed off excess pressure Reseal relief valve Repeat step 6 The cup lid h...

Page 6: ...nob to the full off position counter clockwise and reliev ing cup pressure by opening counter clock wise manual pressure relief valve CAUTION Never clean your Model 288776 in a gun washer The automati...

Page 7: ...Troubleshooting 312111A 7...

Page 8: ...Parts 8 312111A Parts 7 1 2 9 6e 6b 6c 6d 8 3 6a 4 5 10 11 12 13 14 15 16 17 18 Fluid Pressure Regulator Model 288776 Part Number 234434...

Page 9: ...G tee 1 7 288837 CUP handle nut and fluid outlet 1 8 288836 CANISTER 2 Quart 1 9 288778 NIPPLE 1 4 npt 1 10 ADJUSTING KNOB 1 11 CAGE spring 1 12 SCREW adjusting assembly 1 13 SPRING top 1 14 DIAPHRAGM...

Page 10: ...or workmanship repairs will be made at a reasonable charge which charges may include the costs of parts labor and transportation THIS WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ANY OTHER WARRANTIES EXPRE...

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