14
309377
Troubleshooting
Problem
Cause
Solution
Meter leaks from:
Cover/Control
Poor swivel (3)/hose connection.
Poor swivel (3)/meter housing
connection.
Damaged valve stem (16) assembly.
Poor seal at meter housing plate.
NOTE: Place a straight edge along
meter housing plate. If flat, plate and
seal are ok. If plate is not flat, meter
is damaged.
Apply PTFE tape (leave minimum 2
engaged threads uncovered for
electrical continuity) or sealant to
threads of hose and tighten the
connection. See step 9 in
Installation Procedure.
Torque the fitting to 20–25 ft.lb.
Replace or clean valve stem and
O–rings. See Servicing the Valve.
Contact your Graco distributor for
repairs or replacement.
Meter leaks from:
Automatic
nozzle
NOTE: It is important to dis-
tinguish between the two
causes of this problem. A
new nozzle will not correct a
fluid leak caused by a faulty
valve.
Automatic nozzle (5b, 6b, or 7b) has
a damaged seal.
Valve (16) has damaged or
obstructed seals.
Replace the nozzle. See Replacing
the Automatic Nozzle on page 17.
Replace or clean valve stem and
o-rings. See Servicing the Valve on
page 17.
Meter leaks from:
Swivel
Poor swivel (3)/hose connection
Poor swivel (3)/meter housing
connection.
Apply PTFE tape (leave minimum 2
engaged threads uncovered for elec-
trical continuity) or sealant to threads
of hose and tighten the connection.
See step 9 in Installation Proce-
dure.
Torque the fitting to 20–25 ft.lb.
Unit does not stop dispensing
when assumed auto amount
is dispensed.
Auto amount was not entered.
Trigger is obstructed, or unit has
been set down resting on its trigger.
Enter a preset dispense amount in
the Auto dispense mode. AUTO
must be displayed below the amount.
Never set the unit down resting on its
trigger.
