Graco TMax 506 Fonctionnement, Pièces page 31

Troubleshooting
Motor Won't Operate
PROBLEM
Basic Fluid Pressure Problems
Basic Mechanical Problems
Basic Electrical Problems
Motor is Hot and Runs Intermittently
PROBLEM
Motor is hot and runs intermittently.
312891K
CAUSE
1. Pressure control knob setting. Motor will not run
if at minimum setting (fully counterclockwise).
2. Spray tip or fluid filter may be clogged.
1. Frozen or hardened paint.
2. Displacement pump connecting rod pin. Pin must
be completely pushed into connecting rod and
retaining spring must be firmly in groove of pump
pin.
3. Motor. Remove drive housing assembly.
Try to rotate fan by hand.
1. Motor control board. Board shuts down and
displays error code.
2. Electrical supply. Meter must read: 210-255 Vac
for 220-240 Vac models;
85-130 Vac for 100-120 Vac models.
3. Extension cord. Check extension cord continuity
with volt meter.
4. Sprayer power supply cord. Inspect for damage
such as broken insulation or wires.
5. Check that motor leads are securely fastened
and properly mated.
ON/OFF Switch. Connect volt meter between L1 and
L2 terminal on ON/OFF switch. Plug in sprayer and
turn ON. Meter must read:
210-255 Vac for 220-240V models
85-130 Vac for 100-120V models.
All terminals for damage or loose fit.
CAUSE
1. Determine if sprayer was operated at high
pressure with small tips, which causes low motor
RPM and excessive heat build up
2. Be sure ambient temperature where sprayer is
located is no more than 90°F and sprayer is not
located in direct sun
Repair / Réparation / Reparación / Repareren / Reparatur
1. Slowly increase pressure setting to see if
motor starts.
2. Relieve pressure and clear clog or clean
filter; refer to separate gun or tip
instruction manual.
1. Thaw sprayer if water or water-based
paint has frozen in sprayer. Place sprayer
in warm area to thaw. Do not start sprayer
until thawed completely. If paint hardened
(dried) in sprayer, replace pump packing.
See page 60, Pump.
2. Push pin into place and secure with
spring retainer.
3. Replace motor if fan won't turn.
1. See Control Board Diagnostics
2. Reset building circuit breaker; replace
building fuse. Try another outlet.
3. Replace extension cord.
4. Replace power supply cord.
5. Replace loose terminals; crimp to leads.
Be sure terminals are firmly connected.
Clean circuit board terminals. Securely
reconnect leads.
Replace ON/OFF switch.
Replace damaged terminals and reconnect
securely.
1. Decrease pressure setting or increase tip
size.
2. Move sprayer to shaded, cooler area if
possible.
SOLUTION
SOLUTION
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