OK International DX-250 Benutzerhandbuch

 

5 

 

 

 

 
 
 
 
 
 
 
 

 

Refer to Figure 1.0  

1.  Turn on the unit by pressing the Power button (1) 
2.  Press the Mode button (2) until “PURGE” appears on the Display 
3.  Turn up the air pressure by rotating the Air pressure regulator knob (6) 

until the desired pressure is indicated on the Air pressure gauge (5).   

4.  After filling the barrel or using pre-packaged Adhesives, attach syringe to 

receiver head assembly.  Make certain that the syringe locks into place. 

5.  Connect the plug end of the receiver head assembly to one of the air 

dispense outlet (7) 

6.  If vacuum “suck back” is needed, rotate the Vacuum regulator (8) counter 

clockwise until the desired vacuum pressure is obtained 

7.  Press and hold the Footswitch to activate dispensed cycle. (The Manual 

Mode is now activated) 

 

1.  Push the Mode button (2) to select “TIMED” mode  
2.  Rotate the Time control knob (9) to set desired dispense time 
3.  Repeat step 3 to 6 in Section 6.1 
4.  Depress Foot switch to activate timed dispensed cycle 

 
 

1 

To Air Source 

2 

Air Filter (Not Included) 

3 Power 

Adapter 

4 Foot 

Switch 

2

1

3

4

 

6

The cycle counter records the numbers of dispense cycle being activated.  
Up to 65,535 cycles can be recorded.  This number is shown at the lower 
right hand corner of the LCD.  Press the Counter Reset button (3) to clear 
the counter.  

LCD does not 
light 

• No power input 

 
 

• Check power cord 

connections 

• Turn on power 

System will not 
actuate 

• Foot switch not 

plugged in or 
improperly plugged 
in 

• Defective foot switch 
 

• Broken wire or loose 

connection inside 
unit 

 
 

• Defective solenoid 

• Defective PC board 

 

• Check foot switch 

connection 

 
 
• Foot switch needs to be 

repaired or replaced 

• Unplug power cord and 

disconnect air supply.  
Remove cover and check 
for broken wires or loose 
connections 

• Replace solenoid 

• Replace PC board 

 

System will not 
pressurize 

• Insufficient air 

pressure 

• Air hoses not 

plugged in 

• Regulator defective 

• Increase air supply 

pressure 

• Check connection 
 

• Replace regulator 

System will not 
pull vacuum 

• Vacuum setting is 

too low 

• Defective solenoid 

• Defective vacuum 

venturi 

• Defective vacuum 

needle valve 

• Increase vacuum setting 

• Replace solenoid valve 
• Replace venture 
 

• Replace needle valve 

Inconsistent 
dispensing 

• Air bubbles in 

Adhesives 

• Dispense time is too 

low 

• Dispense needle 

started to clog 

• Reduce vacuum setting 
 
• Increase dispensing tim 

 

• Replace needle