16
308487
Troubleshooting
Relieve the pressure
before you check or repair the
meter. Be sure all other valves and controls and the
pump are operating properly.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure
on page 5.
Problem
Cause
Solution
Display does not activate or is
showing unintelligent
characters.
Battery is defective or dead.
Electronic control is malfunctioning.
Replace the battery. See
Replacing
the Battery
on page 18.
Replace the entire unit.
Battery icon continually
blinks.
Battery is low.
Replace the battery. See
Replacing
the Battery
on page 18. If the
problem remains, contact your Graco
distributor for repair or replacement.
Slow or no fluid flow
Filter is clogged.
Pump pressure is low.
Shut-off valve is not fully open.
Foreign material is jammed in the
metering element.
Clean or replace the filter. See
Replacing the Filter
on page 18.
Turn up the pump pressure.
Open the shut-off valve.
If the problem remains, contact your
Graco distributor for repair or re-
placement.
Displayed dispensed amount
is not accurate.
Unit needs to be calibrated for the
fluid that is being dispensed.
Calibrate the meter for the fluid that is
being dispensed. See
Calibrating
the Meter
on page 13.
Oil leaks from swivel, swivel
boot, or plastic housing.
Swivel (3) connection to meter is
loose.
Hose connection to swivel (3) is
loose.
Torque the fitting to 20 to 25 ft-lb
(27 to 34 N.m).
Apply sealant to threads of hose, and
tighten the connection. See step 9
in
Installation Procedure
on
page 5.
Oil leaks from where fluid out-
let tube connects to housing.
Outlet tube or sealing nut or street
elbow is loose. See
Parts Drawing
on page 21.
Check outlet tube and/or sealing nut
for tightness and proper assembly.
Also, make sure the PTFE seal on
the sealing nut is facing the valve
housing.
Automatic nozzle leaks.
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.
*
Some fluid weepage is possible in
applications where thermal expansion
of fluid is possible.
Replace the nozzle. See
Replacing
the Automatic Nozzle
on page 19.
Replace or clean valve stem and
o-rings. See
Servicing the Valve
on
page 19.
Oil leaks from where fluid out-
let tube connects to housing.
Outlet tube (5a, 6a, or 7a) or sealing
nut (5c, 6c, or 7c) or street elbow
(6d or 7d) is loose or damaged.
Sealing nut (5c, 6c, or 7c) is ori-
ented the wrong way.
Check outlet tube, sealing nut, and
street elbow for looseness or dam-
age, and tighten or replace.
Make sure the PTFE seal on the
sealing nut is facing the surface
against which it is tightened.
Summary of Contents for EM5 238457
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