,TROUBLESHOOTING
GUIDE
~.
~~~~U~~
-
...
1.
Engage the gun safety latch.
2.
Turn
the
ONIOFF
switch to
OFF.
3.
Unplug
the
power supply cord.
4.
Disengage the gun safety latch.
5.
Hold
a
metal
part
of
the
gun
firmly
to
the
side
of
a
metal pail, and trigger the
gun
to relieve pressure.
6.
Engage the gun safety latch.
8.
Leave the drain
valve
open until you
are
ready to spray again.
Basic Mechanical Problems
1.
Check for fmzen or hadened material in the
1.
Thaw'. Plug in sprayer and turn on. Slowi)
pump
(39)
and/or pressure control bourdon increase pressure setting
to
see
if
motor
tube. Using
a
screwdriver, carefully try to
rotate fan
at
back
of
motor by hand. See
stam.
If
it
doesn't, replace the displacemei
page
77
the
bare pressure control box
(306)'.
pump packings (see page
26)
andlor replac
2.
Check displacement pump connecting rod
2.
Push
pin into place and secure with
the
connecting md
(3)
and spring retainer
135)
'
pin
1201.
It
must be completely pushed into
-
spring retainer.
should
be
firmly
in
grmw
of
connecting rod.
See page
28.
3.
Cheok for motor damage. Remove driw
2.
Replace motor
(1)
if
fan
won't turn.
housing assembly
(2).
Try to rotate fan by
hand.
See
uaae
30.
lsic Electrical Problems
1.
Check sprayer circuit breaker 1309'button to
1.
Depress circuit breaker button to reset. If
be sure
it
has not popped up. ciicuit breaker continues to open,
see
"Elec
3
trical Short", page
16.
2.
Check electrical supply with volt meter.
2.
Reset
building circuit breaker; replace
Meter should read
105
to
125
VAC. building
fuse.
Try
another electrical outlet.
3.
Check extension cord for visible damage.
3.
Replace axtension cord.
Use
a
volt meter or test lamp
at
extension
cord outlet to check.
4.
Ch,eck sprayer power supply cord
(31
1)
for
4.
Replace power supply cord.
See
page
20.
wlble damage such
as
broken insulation or
wires.
5.
Check motor brush
leads,
terminals and
5.
Tighten terminal screws; replaw brushes.
brush length. Brush length should be
9/16"
See
page
25.
minimum on the longest side.
Sea
page
25.
..:;
..
..
. . ..
,.
.
'~~
,.
'Thaw the sprayer
if
water or water-based material has frozen Wen replacing the bare presure contml box litem
306).
."
in
it,
due to exposure to low temperatures, by placing
it
in
a
warm
area.
Do
not
try to start the sprayer until
it
has
thawed
remove the circuit breaker,
ON/OFF
switch, bridge. circuit
board and electrical hardware and reinstall these parts in the
completely.
If
the bourdon tube was not damaged by the
freezing. the pump should operate. If material hardened
bare box.
pressure control must be replaced.
See
page
23
or
26.
(dried)
in
the sprayer, the pump packings and/or bare
"
.^..
..
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