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PREVENTIVE MAINTENANCE
A t l e a s t t w i c e d a i l y and durine any lenethy:
interruption
of sprayinq,
relieved: remove and clean
clean
f i l t e r in
solvent of a type recommended by
of the material beine smayed. Blow
manufacturer
~.
p a r t s
~
~
with
~~
pressure.
dry
a i r
clean
nozzle in
solvent during shut
SHUTDOWN PROCEDURE
maintain e f f i c i e n t o p e r a t i o n of u n i t ,
To
shutdown procedure a t t h e completion
t h i s
each day's spraying must be d i l i g e n t l y followed:
1 . Shut o f f a i r t o pump by closing pump
a i r control petcock
ON-OFF
Handle is a t r i g h t a n g l e t o petcock body when
closed.
2.
Relieve material pressure in pump, hose
by opening
and spray
gun
will
the material trapped in the system rusting of the wetted parts. To completely flush
This
a l l o w
t o drain back into material container. After ma-
t e r i a l has stopped draining, remwe and clean
-SERVICE
Fump fails t o o p e r a t e , no material discharge.
Pump operates, but insufficient material discharge.......
Excessive surge
I n s u f f i c i e n t m a t e r i a l breakup..
T a i l s in spray pattern............
gun
Spray
spitting.............
Too heavy a coating thic.ess
CHECK POINT NO.
l . . . . . . . .
........
2
3 . . . . . . . .
L . . . . . . . .
........
5 . . . . . . . .
6
7........
e........
9........
lo........
l l . . . . . . . .
12........
l ? . . . . . . . .
U . . . . . . , .
IMPORTANT NOTES
1 . Keev u n i t , mixine container. thinner,
solvent. and material
CLEAV
p a r t i c l e s r b i c h could clog strainer screens andl
o r plug the small orifice in spray tip.
2.
Keep lower
vump
and s m a v
head immersed in recommended type
mn
clean
s o l v e n t a f t e r
f l u s h i n 4
r e a d y t o start sprayine again.
-3.
r e l i i v e - u n i t
TO
when not in use, shut off a i r p r e s s u r e t o pump
with material pressure
gun spray t i p and t i p
_ . .
Also k e r s e gun
periods.
down
of
See Fig. 1 .
202-338.
valve of -ifold.
drump
DIAGNOSIS
TROUBLESOME
sIMPpOM.5
.............................
..........................
a t spray
gun
.......................
..........................
............................
mssmm
CAUSES
ak. supply line.
Restricted
I n s u f f i c i e n t a i r c a p a c i t y .
or clogged.
Air
valve closed
A i r regulator inoperative or s e t t o o
r e g l l a t o r s e t t o o high.
A i r
Material too viscous
I n s u f f i c i e n t material in container.
Clogged m a t e r i d i n t a k e s t r a i n e r .
Clogged m a t e r i a l f i l t e r , t i p or t i p f i l t e r .
Hish flow rate-tip orifice too large.
worn spray
Improper or
Surge chamber inactive,
Worn, damaged
obstructed gun parts.
o r
o r obstructed pump valves or packings.
Worn
MAINTENANCE
and f r e e of foreisn
Assembl-f f i l l e d n i t h
u n i t and u n t i l
Of
unnecessary pressure
. . . . . . . . . . . . . . . . . . . .
f i l t e r c a r t r i d g e o r screen, if used. Close
valve.
g u n .
3 .
Remove spray t i p and f i l t e r , i f used,
Immerse in
i ' r o m spray
thoroughly with a fine
type solvent and
wash
b r i s t l e d b r u s h . Using t h e a i r blower valve
205-541 a t t a c h e d t o a i r manifold 162-376, blov
from
a i r through t i p
f r o n t t o back and through
open end of filter.
Refer to Fig.
forward end submerged in
spray
gun
type solvent u n t i l r e a d y t o start
cotmuended
..
spraying again. NOTE:
e m
from dispensine hose unless the unit i s t o be
completely flushed. Keeping
with material w i l l minimize~the necessity for
flushing u n i t .
m:
Water based p a i n t s
final flushing with solvent DAILY and a l s o
,
of a l l e x t e r n a l moving pump
u n i t follow the procedure outlined
FLUSHINC UNIT.
paragraph e n t i t l e d
.............
1-3-4-6-6-9
2-4-7-Y,
1-2-9-10-12
1-2-3-4-6-9-11
1 - 2 4 - 6 - l l
13
5-10-11
low.
t i p .
gun
used.
if
and relieve material pressure in system by opening
manifold or f i l t e r .
dump valve
of
4.
Daily or more often
,
dicates necessar
d r a i n f i l t e r o r surge tank, re-
filter
more
cart:idne
and close dump valve.
~
7
. .
d r a i n
clean
recornended
Keep
1 .
& &
re-
D o not remove t h e s w a q
unit
f u l l y charged
r e q u k e a
w i l l
O i l i n g
to prevent the
p a r t s
subsequent
in
CHECK POINT
NOS.
-
if
experience
in-
or screen.
if used, and
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