Graco 222602, Instruction Manual

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Operation
307637S 5
Operation
1. Start the pump. See instruction manual 307906,
supplied.
2. To dispense fluid and adjust fluid flow from the
valve, start with the air supply turned off at the regu-
lator (20). Hold the valve handle (1a) in the down
position to open the valve. Slowly open the regulator
until the desired fluid flow is obtained. Air pressure
of 30-40 psi (0.21-0.28 MPa, 2.1-2.8 bar) is recom-
mended to provide sufficient fluid flow without
splashing.
To use the electronic meter, see instruction manual
308687, supplied, for detailed operating instruc-
tions.
Maintenance
Electronically Metered Models
Only
For electroniccaly metered models, see instruction man-
ual 308687, supplied.
Troubleshooting
Check all possible problems and causes before disas-
sembling gun.
Problem Cause Solution
Valve will not dispense fluid Pump is not operating Check pump. See manual 307906
Valve diffuser is clogged Remove and clean valve diffuser
Strainer, if used, is clogegd Remove and clean strainer
Electronic meter is malfunctioning Replace dispense meter. See man-
ual 308687
Fluid flow from dispense valve is low
or irregular Pump is malfunctioning Check pump. See manual 307906
Valve diffuser is clogged Remove and clean valve diffuser
Strainer, if used, is clogged Remove and clean strainer
Leakage at valve seat Valve seal is worn or damaged Replace
Valve spring is weak or broken Replace
Fluid meter registers incorrectly or
not at all Electronic control is malfunctioning Replace. See manual 308687