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30941214
Pressure Control Repair
Digital Display Messag es
Relieve pressu re before repair; page 4. No display does not mean that sprayer is not pr essurized.
DISPLAY SPRAYER
OPERATION
INDICATION ACTION
No Display Sprayer may be pressurized. Loss of power or display
not connected
Check power source. Relieve
pressu re before repair or dis-
assembly. Verify display is
connected.
Spraye r may be pressurized. Pressure less than
200 psi (14 bar, 1.4 MPa)
Increase pressure as needed
Sprayer is pressurized. Power is ap-
plied. (Pressure varies with tip size and
pressu re control setting.)
Normal operation Spray
Spraye r stops. Engine is running. Exceeded pressure limit Remove any filter clogs or
flow obstructions. Make sure
gun trigger is locked open if
using AutoClean valve.
Spraye r stops. Engine is running. Pressure transducer faulty,
bad connecti on or broken
wire.
Check transducer connections
and wire. Replace transducer
or control board, if necessary.
Spraye r stops. Engine is running. High clutch current 1. Check clutch 7--pin bulk-
head connector. Clean
contacts.
2. 1.7 ±0.2Ω across clutch
field at 70_F
3. Replace clutch field as-
sembly
Spraye r stops. Engine is running.
Display alternates E=06.
High clutch temperature 1. If clutch is new, let spray-
er cool down and then re-
start
2. Inspect clutch. Replac e
clutch if there is excessive
wear.
3. Remove pump pin, sepa-
rate pinion housing from
clutch housing. Rotate
rotor clockwise to check
for excessive drag.
Spraye r stops. Engine is running. Pressure greater than
2000 psi (138 bar, 14 MPa)
while in Flush Timer Mode
Chase paint from lines before
running in flush timer mode.
Make sure spray gun is trig-
gered and prime valve is open
when using AutoClean
After a fault, fo llo w these steps to restart sprayer:
1. Correct fault condition
2. Turn sprayer OFF
3. Turn sprayer ON