Graco PR70 Operation & Maintenance Manual page 27

8. Select a large size shot.
9. Hold a waste container at the end of the dispense
head (102) and press the cycle pumps button or the
footswitch.
10. Repeat the previous step until no air comes out of
the dispense valve.
11. If phasing adjustments and ratio checking are not
required, use the following procedure to attach the
static mixer.
a. Attach the static mixer with the dispense head
pointed up.
b. Hold waste container at end of dispense
head (102) and press the cycle pumps button or
the footswitch.
c. Repeat the previous steps until static mixer has
been purged of air.
12. Use a 4 mm hex key to loosen screws (102a) hold-
ing dispense head in place.
13. Rotate dispense head back to normal dispensing
position.
14. Use a 4 mm hex key to tighten the screws (102a)
holding the dispense head in place.
15. Adjust snuff back to proper setting for operation.
See Adjust Dispense Valve Snuff Back (MD2
Valve Only) on page 30.
334116D
For Over/Under Block:
1. Remove the pins (200) holding the hoses in the
over/under block. Pull the non drip valves and hoses
(201) out of the block.
200
2. Select a large size shot.
3. Hold the hoses and non drip valves stretched out at
a slight incline with the non drip valves over a waste
container and press the cycle pumps pushbutton or
the footswitch.
4. Repeat the previous step until no air comes out
either non drip valve.
5. If phasing adjustments and ratio checking are not
required plug the non drip valves back into the
over/under block.
6. Hold the block and mixer at a slight incline with the
outlet over a waste container and press the cycle
pumps pushbutton or footswitch.
7. Repeat the previous step until the static mixer has
been purged of air.
Setup
201
201
27