Table of Contents
Advertisement
TROUBLESHOOTING GUIDE
Pressure Relief Procedure
To reduce the risk of serious bodily injury, including
fluid injection. injury from splashing fluid or solvent in
the eyes oron the skin, moving parts or electric shock,
always follow this procedure whenever you shutoff the
sprayer, when checking or servicing any part of the
spray system, when installing, cleaning or changing
spray tips, and whenever you stop spraying.
2.
Turn the ON/OFF switch to OFF.
1 .
Engage the gun safety latch.
4.
Disengage the gun safety latch.
3.
Unplug the pcwer supply cord.
5 . Hold a metal part of the gun firmly to the side
of
a
grounded metal pail, and triggerthe gun to relieve
pressure.
6.
Engage the gun safety latch.
7. Open the pressure drain valve, having a container
8 .
Leave the pressure drain valve open until you are
ready to catch the drainage.
ready
to
spray again.
If you suspect that the spray tip or hose is complete1
Clogged, orthatpressure has notbeen fully relievedall
ter following the steps above, wrap a rag around the tip
8LOWLY loosen the pan to relieve pressure gradually,
uard retaining nut or hose end coupling and VERY
then loosen completely. Now clear the tip or hose ob-
struction.
Check everything in the guide before disassembling the sprayer.
MOTOR WON'T OPERATE
..a
.
...
TYPE
OF
PROBLEM
Basic Fluid Pressure Probiemr
asic Electrical Problems
WHAT TO
CHECK
If
check is not
OK,
refer
to
this column.
If
check is
OK,
go
to
the next check.
WHAT TO DO
1.
Check the pressure Control knob Setting.
1.
Slowly incteasethe pressure seningto see
The motor will not run if
it
is at the mini-
if
the motor stans.
mum setting (fully counterclockwise).
2.
Check for a
Clogged
spray tip. Rekr
10
mg.
ual.
gun or tip instruction manual for tip clean-
your separate gun or tip instruction man-
2.
Relieve pressure, refer
to
your separate
1.
Check for frozen
or
hardened Paint in the
1,
Thaw. Plug in sprayer and turn
on.
Slowly in-
pump (39) and/or pressure Conmi
hour-
crease pressure setting to see
if
motor
don tube. Using a screwdriver. CarefUllY
starts.
If it
doesn't, replace the displace-
try
to rotate fan at back of motor by hand.
307-793) andlor replace the bare pressure See page
23.
ment pump packings
(see
manual
2.
Check displacement Pump connecting
2.
Push pin into place and secure with the
control box (301). See page 30.
rod pin (20).
It
must
be completelypushed
into connecting rod (3) and retaining
spring retainer.
connecting rod. See page 32.
,
spring (35) must be firmly in groove
of
3.
Check for motor damage.
housi"
. " ~ _ L I .
, . . >
I . .
I" m t
Remove drive 3 . Replace motor (1)
if
fan won't turn.
ng
assertuy
( r ) .
Dee page 33. Try
._
.-.ate fan by hand.
1.
Check sprayor, circuit breaker (309) but-
continues
to
open, see 'Electrical Shon'
on
ton lo
be sure
it
has
not
popped up.
1.
Depress bunon
to
reset.
If
circuit breaker
2. Check eleCtriMl
SUPPlY
with Volt meter.
2.
Reset building circuit breaker; replace
Meter should read 105-125 VAC.
building fuse.
Try
another electrical outlet.
I
. .
3 . Check extension cord for visible damage. 3. Replace extension cord.
Use a
volt
meter or test lamp at extension
cord outlet to check.
4.
Check sprayer Power supply cord
(31
1)
4.
Replace power supply cord. See page'27.
for visible damage such as broken insula-
lion or wires.
I
5. Check motor bNsh leads, terminals and
5.
Tighten terminal screws; replace brushes.
brush length. Brush length should be 1/2"
minimum. See page 26.
See page 26.
Thaw the sprayer if water or water-based paint has frozen in it. due
to
exposure
to
low temperatures. by placing it in a warm area.
Do
operate.
If
paint hardened (dried) in the sprayer, the pump packings and/or bare pressure control must bereplaced. See page
30 or
not try
to
start the sprayer until
it
has thawed completely.
If
the bourdon tube was not damaged by the freezing.the pump should
manual 307-793.
When replacing the bare pressure control box (item 301
),
remove the ONIOFF switch, bridge, circuit board and electrical hardware
and reinstall these parts in the bare box.
307-786
17
Advertisement
Table of Contents
