Graco PR70 Manual De Usuario

312393G 

 

13 of 50 

Before the machine can be properly calibrated with 
material, it will need to be primed. 

 

 

 

 

 

Read all manufacturer’s warning and material MSDS to know the 
specific hazards of the material used.  

From the Run Screen press 

 then press 

.  The 

following screen will be displayed.

 

 

Key: 
A  Full Retract ICON 
B  Full Extend ICON  
C  Change Dispense Valve Mode 
 

 = Always Open 

 

 = Always Closed 

 

 = Opens at Cylinder Entrance (Automatic) 

D  Current Piston Position 
E  Current Dispense Valve Mode 
F  Screen Number (C1) 
G 

 & 

 keys will navigate to adjacent screens. 

1.  Place a waste container under the dispense valve 

to capture any dispensed material. 

2. Press   until the upper ICON is 

. 

3. Press   to extend the piston fully. 

4. Press   to retract the piston fully. 

5.  Repeat steps 3 and 4 until both materials dispense 

from the valve without air. 

6. Press   twice to return to the Run screen. 

Before the machine will accurately dispense, it must 
be calibrated.  

 

 

 

 

 

Be careful not to pinch fingers when manually moving the machine 
drive block.  

This step should be executed the 1

st

 time the machine 

is setup, and may not need to be re-executed unless 
the position sensor, an electronic component or a piston 
has been replaced.  

From the Run Screen press 

 then press 

.  The 

following screen will be displayed.

 

 

Key: 
A  Full Extend position number from last calibration 
B  Full Extend Command ICON 
C  Full Retract position number from last calibration 
D  Full Retract Command ICON 
E  Cylinder Entrance position from last calibration 
F  Cylinder Entrance Command ICON 
H  Current Piston Position Field 
I 

Screen Number (C1) 

J 

 & 

 keys will navigate to adjacent screens. 

1.  Place a waste container under the dispense valve 

to capture any dispensed material. 

2.  With air pressure applied to the machine, press 

. 

3.  The piston should fully extend and a number 

between 3600 to 3900 should appear for ‘H’ 

4. Press   to accept the number or 

 to keep the 

current number. 

5. Press  . 

6.  The piston should fully retract and a number 

between 1250 to 1600 should appear for ‘H’. 

7. Press   to accept the number or 

 to keep the 

current number. 

8.  Decrease the air pressure by adjusting the machine 

air pressure regulator to a minimal value (i.e. ~ 10 - 
20 psi). 

9. Press  .