Graco Pulse 26C935 Installation And Operation Manual page 29

Problem
Metered dispense valve leaks
from the nozzle when the
nozzle is left in the open
position.
It is important to distinguish
between the two states of the
nozzle to determine the cause
of this problem. a new nozzle
in the open state will NOT
correct a fluid leak caused by
a faulty valve.
Metered dispense valve leaks
from swivel
Unit does not stop dispensing
when assumed preset amount
is dispensed.
Weak or no RF signal
Meter register fails
Screen locks up or freezes
Device is unable to register to
the Pulse Pro network or
device does not rejoin the
network after system reboot.
Device information screen is
displayed but can not be
cleared.
3A7397E
Cause
Metered dispense valve
with MANUAL nozzle
should be closed after
each use.
Metered dispense valve
with AUTOMATIC nozzle
left open exasperated by
thermal expansion inside
the meter.
Valve cartridge has dam-
aged seals.
Poor swivel/hose connec-
tion.
Poor swivel/metered dis-
pense valve housing con-
nection.
Swivel seals have deterio-
rated and leak.
Valve is dirty or seals are
defective.
Low battery.
Solenoid not functioning
Changes/obstructions in RF
pathway (.e., vehicle,
overhead door)
Poor RF signal
Pulse Fluid Management
software not in Discovery
Mode
Device is not meshing
properly with the device
network.
A fatal error in the firmware
has been detected.
Troubleshooting
Solution
Close MANUAL nozzle when meter is
not in use.
Close nozzles when meters are not in
use. Wipe nozzle tip after each use.
Close nozzles when meters are not in
use. Wipe nozzle tip after each use.
Replace valve cartridge. Replacement
Kit Part 25D904.
Apply PTFE tape (leave a minimum 2
engaged threads uncovered for electri-
cal continuity) or sealant to threads of
hose and tighten the connection.
Torque the fitting to 20-25 ft-lb (27.12 -
34 N•m).
Replace swivel. Use Swivel Seal and Fil-
ter Replacement Kit 25D906. See Swivel
Seal and Filter Replacement instructions
page
Replace valve cartridge. Replacement
Kit Part 25D904.
Replace batteries, page 27.
Replace solenoid.
Add Graco Extender to Pulse System.
Order Graco Part No. 17F885 -
US/Canada; 17F886 - EU; 17F887 - UK;
17F888 - ANZ.
See Troubleshooting, Weak or no RF
Signal
Set software to Discover Mode, then retry
registration.
Remove batteries. Wait 5 minutes, then
replace batteries and restart.
Flip the screen on the meter twice. See
page 26. If this does not resolve the
issue, toggle to Discovery mode on the
HUB. Wait one minute and toggle it
back.
Replace bezel item 19 and recalibrate
the meter.
29