Adjust Stroke; Pressure Relief Procedure - Graco DV Series Instructions-Parts List Manual

Adjust Stroke

Adjust the distance that the dispense valve
opens to restrict the flow of material through
the tip and seat. See F
1. Loosen the lock nut (R).
2. Cycle air pressure to close valve.
3. Turn the adjuster knob (D) clockwise until
the valve is held closed.
4. Cycle air pressure to open the valve.
Ensure material does not dispense.
5. Slowly open the adjuster knob (D) and then
cycle the air pressure until the desired flow
is reached.
6. Tighten lock nut (R) to hold the adjuster
knob (D) in place.
F . 4: 3/4 in. Valve
IG
3A1792A
. 4.
IG
D
R
r_v1m350_3a0412a_3a-1
Pressure Relief
Procedure
To reduce the risk of serious injury, use this
procedure when shutting off the dispense
valve, and before checking or adjusting any
part of the system.
This procedure describes how to relieve pres-
sure from the dispense valve. See the supply
system manual for instructions on relieving pres-
sure from the entire system.
1. Shut off material supply.
2. Actuate the valve into a grounded metal
waste container to relieve the fluid pressure.
3. Relieve all air pressure in the air lines.
4. If heated, shut off electrical power to the
automatic dispense valve.
5. If the valve nozzle or fluid hose is clogged or
if pressure has not been fully relieved after
following the steps above, VERY SLOWLY
loosen the npt inlet fitting from the applicator
fluid body or hose end coupling to relieve
pressure gradually, then loosen completely.
Clear hose or nozzle obstruction.

Pressure Relief Procedure

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