Roller
Fuse12
ON/OFF
Rectifier12
Power
Pressure
Outlet Valve13.
Inlet Valve13.
Diaphragm14
Suction Tube14.
Priming Valve & T
Motor,
. . . . . . . . . . . . . . . . . . . . . . .
Cover9. . . . . . . . . . . . . . . . . . .
Chart
V
alve11.
. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
Switch
. . . . . . . . . . . . . . . . . . . . . .
Supply Cord
Switch
. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . .
Conn Rod, Bearing
Drawing & Lists
. . . . . . . . . . . . . . . . . . . . .
Data
. . . . . . . . . . . . . . . . . .
Roller System
, without hose, gun, extension or roller
. . . . .
10.
12.
12.
13.
15.
16.
20.
. . . . . . . . . . .
. . . . . . . . . . . . . .
. . . . . . . . . . .
. . . . . . . . . . . . . .
ube14.
. . . . . . . . .
. . . . . . . . . . . .
APPLICATION EQUIPMENT FROM GRACO
Model
218–938 shown
Always
Professional Results
GRACO INC.P.O. BOX 1441
COPYRIGHT
MINNEAPOLIS, MN
1985, GRACO INC.
55440–1441
CAUTION
To avoid premature wear of the pressure switch, never use more than 25 ft (7.6 m) of 1/4” ID outlet hose. When
outlet hose is needed, use 3/8” ID hose at a maximum of 100 ft (30 m) long. Never use 1/4” ID and 3/8” ID
longer
hose
together
.
not use lacquer or lacquer thinner in the suction and outlet hoses supplied with this system. These fluids
Do
destroy
See ACCESSORIES section of the manual for ordering optional hoses.
the hose material. Use the optional chemical–resistant hoses.
TERMS
Be
sure you read and understand each of these terms
reading the rest of the manual.
fore
WARNING: Alerts user to avoid or correct conditions
could cause bodily injury
which
.
be
-
CAUTION: Alerts user to avoid or correct conditions
could damage or destroy the equipment.
which
NOTE: Gives additional explanation of a procedure or
hints.
helpful
WARNING
Be sure all operators of this equipment read, understand,
and follow the warnings and instructions in this manual !
GENERAL SAFETY
Use extreme care not to splash paint, contaminated
water
flushing
eyewear.
, or solvent into your
eyes. W
ear protective
EQUIPMENT MISUSE HAZARD
This
system is designed to be used at
MAXIMUM WORKING PRESSURE
or accessories which are
nents
PT2000
System.
. Use only compo-
designed for use with the
quickly
250 psi (17.5 bar)
Be sure the area in which you are working is well venti-
to avoid a buildup of harmful paint
lated,
To reduce the risk of electric shock,
to rain
.
system
operate
the pump with the base cover removed.
Always store the system indoors. Do not
fumes.
do not expose the
ELECTRICAL GROUNDING
Electrical grounding is essential to reduce the risk of an
electric shock or other serious bodily injury from static
sparking.
page
Read and follow the
6 of this manual.
grounding instructions on
EXTENSION MISUSE HAZARD
Do
not attempt to modify the
to use parts which are not designed for use with this sys
Use the extension only with the roller frame provided
tem.
with
this system.
Improper
valve can result in component rupture or explosion and
cause
use of the extension, roller frame, hose or roller
serious bodily injury
extension or roller frame, or
.
Any misuse of this equipment, such as modifying parts,
using incompatible paint or solvent, or using worn or
damaged
result
damage.
Never
could
Check all parts of the system regularly and repair or replace
parts, can cause the equipment
in
serious bodily injury
alter or modify any part of this equipment; doing
cause it to overpressurize or malfunction.
any worn or damaged parts immediately
, fire, explosion and property
to rupture and
AVOID POWER LINES
Avoid contacting any power lines with the extension.
Contact
bodily
with power lines could cause extremely serious
injury
, including burns or electrocution.
HAZARD OF USING FLUIDS CONTAINING
HALOGENATED HYDROCARBONS
Never use 1,1,1–trichloroethane, methylene chloride,
-
other halogenated hydrocarbon solvents or fluids con-
such solvents in this equipment.
taining
result in a serious chemical reaction, with the possibility
of
explosion, which could cause death, serious bodily in
and/or substantial property damage.
jury
Consult your material suppliers to ensure that the fluids
used are compatible with aluminum and zinc
being
Such use could
so
.
-
parts.
307-730
AVERTISSEMENT
Assurez–vous que tous les utilisateurs de cet équipment lisent, comprennent et
observent les avertissements et les instructions de ce manuel!
SECURITE GENERAL
Faites
extrêmement attention de ne pas éclabousser de
peinture, d’eau de rinçage sale ni de solvant dans les
Portez de lunettes de protection.
yeux.
Assurez-vous que l’endroit où vous travaillez est bien
afin d’éviter l’accumulation des vapeurs toxiques de
aéré
peinture.
Pour réduire
le système à la pluie.
pas
l’intérieur.
le
risque de décharge électrique,
Rangez toujours
n’exposez
le système à
MISE A LA TERRE
Il
est essentiel d’ef
le risque de décharge électrique et de blessures
sérieuses résultant des étincelles d’électricité statique.
et observez les instuctions de mise
Lisez
page 6 de ce manuel.
fecteur la mise à la terre pour
à la terre, à la
réduire
DANGERS POUVANT RESULTER DU
MAUVAIS USAGE DE LA RALLONGE
N’essayez pas de modifier la rallonge ni la monture du
rouleau; n’essayez pas non plus d’utiliser de pièces qui
sont pas conçues pour aller avec ce système. N‘utili
ne
sez la rallonge qu’avec la monture de rouleau fournie
le système.
avec
L’utilisation incorrecte de la rallonge, de la monture de
rouleau,
la
sures
du tuyau ou du robinet du rouleau peut entraîner
rupture de pièces ou une explosion et causer des
sérieuses.
bles
DANGERS POUVANT RESULTER DU
MAUVAIS USAGES DE L‘EQUIPMENT
Ce
système est conçu pour être utilisé à une
MAXIMUM DE FONCTIONNEMENT de 17.5 bars (250
N’utilisez que des pièces ou accessoires qui sont
psi).
conçus
L’utilisation
des
patibles, l’utilisation de pièces usées ou abîmées peuvent entrainer la rupture de l’équipement et causer des
blessures graves, un incendie, une explosion et des
dégâts
Ne changez et ne modifiez jamais aucune pièce du
système et réparez ou remplacez les piéces usées ou
abîmées
Vérifiez régulièrement toutes les pièces du système et
réparez ou remplacez les pièces usées ou abîmées
immédiatement.
-
pour être utilisés avec le système PT2000.
incorrecte de cet équipement, la
pièces, l’utilisation de peinture ou
matériels.
immédiatement.
de solvant incom
EVITEZ LES LIGNES ELECTRIQUES
Evitez
tout contact avec
-
rait causer des blessures très graves, y compris des
brûlures
ou l’électrocution.
les lignes électriques! Ceci pour
PRESSION
modification
-
-
307-730
3
ADVERTENCIA
Asegurarse de que todos los operadores de este equipo lean, entiendan
y repeten las precauciones e instrucciones indicadas en este manual.
SEGURIDAD EN GENERAL
Tener extremo cuidado de no salpicarse los ojos con
pintura,
gafas
Asegurarse de que el lugar de trabajo tenga buena
ventilición, para evitar la acumulación de vapores de
pintura
Para reducir el riesgo de sufrir un choque eléctrico,
dejar este sistema expuesto a la lluvia.
guardarlo
agua de enjuague contaminada o solvente. Usar
protectoras.
nocivos.
Siempre
bajo techo.
PUESTA A TIERRA
La puesta a tierra es esencial para reducir el riesgo de
sufrir un choque eléctrico u otras lesiones corporales
graves debido a chispas estáticas. Leer y seguir las
instrucciones
dadas en la pàgina 6 de este manual.
PELIGRO POR MAL USO
DE LA EXTENSION
No intentar modificar las extensión o el portarradillo, o
piezas que no hayan sido diseñadas para usarse en
usar
este sistema. Usar la extensión solamente con el
portarrodillo
provisto con este sistema.
no
PELIGRO POR MAL USO DEL EQUIPO
Este sistema está diseñado para una
TRABAJO
componentes o accesorios diseñados para usarse con
sistema PT2000.
el
El
uso indebido
las
piezas, uso
piezas dañadas o desgastadas, podría causer la rotura
del equipo y terminar en graves lesiones personales,
incendio,
Nunca alterar o modificar ninguna pieza del equipo;
el hacerlo podría causar sobrepresión o malfuncionamiento.
Revisar con regularidad todas las piezas del sistema y
reparar
desgastadas.
MAXIMA de 17.5 barías (250 lbs/pulg2).
de este equipo, tal como modificación de
de pintura o solvente incompatible, o de
explosión y daños a la propiedad.
o sustituir de inmediato las que
PRESION DE
Usar
estén dañadas o
PROCURAR NO TOCAR
LOS CABLES ELECTRICOS
El
uso indebido de la extensión, portarrodillo,
o gatillo del rodillo podría romper o hacer explotar el
componente
y causar graves lesiones corporales.
manguera
¡Procurar no tocar ningún cable elecrico! De llegar a
suceder
mente
esto se
graves, incluso quemaduras o electrocución.
podrían sufrir lesiones corporales suma
-
4
307-730
PT2000 PRESSURE ROLLER SYSTEM DESCRIPTION
PRIMING TUBE
SUCTION
HOSE
POWER SUPPL
ON/OFF SWITCH
25 FT
. (7.6 M) HOSE
Y CORD
INLET V
MOTOR
ALVE
PRIMING V
AINT FIL
P
ALVE
TER
ROLLER V
ALVE
18 INCH EXTENSION
9 INCH ROLLER FRAME
Motor
The motor drives the connecting rod which moves the
diaphragm.
Pressure
Switch
The pressure switch at the pump outlet turns the motor
and of
on
f to control paint
pressure.
Diaphragm
The diaphragm is the heart of the pump. Driven by the
connecting rod and motor , the movement of the diaphragm
outlet
draws paint
valve.
Priming V
alve
through the suction hose and to the
The priming valve assists in priming the pump during
startup. Turning the priming valve counterclockwise
causes the paint to drain directly back into the pail
through the priming tube. T urning the knob clockwise
causes
to
Outlet V
the paint
the hose, roller valve and extension
alve
to flow through the fluid outlet valve
.
and
The outlet valve has a ball check which prevents paint
from flowing backwards into the pump. This helps keep
even supply of paint
an
the roller
valve.
to the roller each time you
trigger
ROLLER COVER
0285
Inlet V
alve
As
the diaphragm draws paint from the suction tube, the
paint
passes through the inlet
paint
into the pump.
valve which opens to allow
Outlet Hose
The hose has swivel-type couplings for easy assembly.
larger diameter outlet hose and chemical-resistant out
A
and suction hoses are available. See ACCESSORIES
let
on
page 19.
Roller Valve
The
roller
it on and of
ing
valve controls paint
f.
flow to the
roller
by trigger
Pressure Roller
The
pressure roller has an 18 inch extension. T
wo roller
covers, one 1/2 inch nap for smooth surfaces, and one
nap for semi–rough surfaces, are provided. Dif
3/4”
lengths
roller
and adjustable extensions and
covers are available. See
ACCESSORIES on page
dif
ferent types of
ferent
19.
307-730
-
-
5
PRIMING TUBE
SUCTION
SETUP
HOSE
POWER SUPPL
ON/OFF SWITCH
SPRING GUARD MUST BE
A
T ROLLER VALVE INLET
INLET V
MOTOR
Y CORD
USE TWO WRENCHES
T
O TIGHTEN
ROLLER V
ALVE
ALVE
PRIMING V
P
AINT FIL
USE TWO WRENCHES
T
O TIGHTEN
25 FT
BE SURE GASKETS ARE
INST
ALLED A
USE TWO WRENCHES
T
O TIGHTEN
T THESE JOINTS
ROLLER COVER
ALVE
TER
. (7.6 M) HOSE
TRIGGER
18 INCH EXTENSION
9 INCH ROLLER FRAME
Fig
1
1. Remove
as
all parts from the boxes and assemble them
shown in Fig
1, following the notes on the drawing.
2. Prepare the paint according to the manufacturer ’s
recommendations.
Remove any skin
formed on the top of the paint. If necessary
that may have
, thin the
paint.
WARNING
remove
Never
supply
cord. Be sure the outlet
In
the event of an electrical short circuit, grounding
reduces
escape
the third (grounding) pin of the power
is properly grounded.
the risk of an electric shock by providing an
wire for the electric current.
Inspect the power supply cord and extension cord
each use. Be sure they are in good condition
before
and
have
undamaged three-pin plugs. Replace im
mediately if either cord shows signs of wear or
damage.
HAND TIGHTEN ONL
TO AVOID CRACKING
ROLLER COVER
Cord LengthExtension
feet(meters)W
ire Gauge
1–100(1–30)18
100–200(30–61)16
200–300(61–92)14
over 300
GROUNDED
(over 92)12
OUTLET
Y
0285
3. Plug
the power supply cord into a properly grounded,
120 V electrical outlet. See Fig 2. Do not use an
adapter. All extension cords must have three wires.
Use the chart below for selecting the appropriate
gauge for the extension cord.
wire
307-730
6
Fig 2
GROUNDING
PIN
0286
STARTUP
WARNING
Pressure
To
reduce the risk of serious bodily injury
injury from moving parts, or electric shock, always
follow
tem,
tem
1. T
2.
3. Trigger the roller
If
you suspect that pressure is not fully relieved after
following
turns
Place the suction hose in the pail of paint.
1.
2.
Plug in the sprayer
3.
Open the priming valve 2 turns
4. T
Relief Procedure
, including
this procedure whenever you shut of
when checking or servicing any part of the sys
and whenever you stop painting.
urn the ON/OFF switch to OFF
Unplug the power supply cord.
valve to relieve pressure.
the steps above,
counterclockwise.
urn the ON/OFF switch ON.
open the priming valve
.
counterclockwise.
f the
.
sys
2
5. You can see the paint being drawn into the suction
(if the hose is clean). As soon as you see paint
hose
flow through the priming tube, close the priming
This usually takes less than 30 seconds.
valve.
-
Failure to completely close the priming valve after
the system is primed will cause the valve to erode,
greatly shortening the valve life.
NOTE: If your system is hard to prime, first try to force
the suction tube. Hold the suction tube in a
feed
vertical
system.
minute, shut it of f. Heavy viscosity paint may
need to be thinned. Be sure to follow the paint
manufacturer’s
6. Trigger the roller valve to prime the outlet hose and
extension. Once primed, the motor will run when
there is paint demand, but appears to shut itself of f
when
NOTE: An occasional start and stop of the motor when
the roller valve is not triggered is normal.
position and pour paint into it. T
there is no paint
CAUTION
urn on
the
If the system does not prime within one
recommendations on thinning.
demand.
OPERATION
WARNING
To reduce the risk of electric shock, do not expose
system to rain. Always store the system indoors.
the
Do not operate the pump with the base cover
removed.
CAUTION
Always
perature before using it to prevent damaging the
system.
allow cold equipment to warm to room tem
1. With
2.
3. Whenever you stop painting, turn the ON/OFF
-
4. Thoroughly
the system fully primed, trigger the roller valve
briefly until paint comes to the roller
Experiment with triggering and rolling the paint until
you
determine just how often you need to trigger the
roller
valve to keep an even flow of paint to the roller
to OFF
switch
vate the roller end of the extension to prevent paint
draining out the roller end.
from
use
to keep it in good working order
, and trigger
flush the system immediately after each
the roller valve. Then ele
.
. See page 8.
.
-
307-730
7
MAINTENANCE
CAUTION
Thorough flushing and proper maintenance are
essential
to keep your
system working properly
.
Improper flushing or maintenance may prevent the
system from working the next time you need it, and
result in costly damage to the system.
may
Always
ly
Always
tension
its
NOTE: A
flush your system thoroughly and
after each use.
drain all water out of the roller
and leave the system filled
to prevent corrosion.
Garden Hose Flush Adapter
included.
This adapter is placed at the pump inlet
immediate
valve and ex
with mineral spir
, P/N 220–231, is
-
-
-
and uses a standard city water supply to aid in
flushing. Instructions on how to use it are in-
with the adapter
cluded
.
Flushing Procedure (Latex Paint Only)
1. T
urn the ON/OFF switch to OFF
.
2. Trigger the roller valve and roll out the excess paint
the roller onto a wall or newspaper
from
. Remove
the
roller cover and dif fuser, and soak these parts in a
of warm, soapy water
pail
.
3. Put the suction tube in a pail of warm, soapy water.
Hold the roller frame over the paint pail, turn on the
system,
the
paint
and trigger the
in the hoses. See Fig 3. Release the trigger
roller valve
to drain and save
and shut of f the pump as soon as all the paint is
drained.
flushing
This avoids contaminating the
water
.
paint
with
the
4. Now
hold the
the pump and trigger
on
solution
roller frame
for three to five minutes (five
over the flushing pail. T
the
roller valve
. Circulate the
to ten minutes
urn
if using a cold solution). Open the priming valve for
a few seconds to clean the priming tube. Close the
priming
5. Raise
pump
Shut
valve.
the suction hose above the water and run
for a few seconds
of
f the pump.
to drain the flushing solution.
the
6. Wash off all external parts of the hoses, extension,
roller frame,
7. Flush
roller valve
again with clean, clear water
and pump.
. Change the wa
ter as necessary , until the system is thoroughly
cleaned.
flush
8. Finally,
just
a few seconds. Open
off
the pump. Some mineral spirits
system
the system with clean mineral spirits for
the priming valve and turn
must be left in the
to prevent corrosion.
CAUTION
Never
leave
system. To prevent corrosion in the pump, exten-
water or water-based
paint
(latex) in the
sion, roller valve and roller frame, your final flush
be with mineral spirits.
must
9. Thoroughly rinse the roller cover inside and out.
the dif
Clean
10. Oil
the needle in the
a
few times to distribute the oil. See Detail A,
fuser as explained on page 9.
roller valve
and trigger the valve
Fig 3.
-
Fig 3
8
307-730
DET
AIL A
REGULARLY
OIL
0287
0288
Flushing Procedure (Oil-based Paint Only)
ÉÉ
ÉÉ
NOTE: Follow the instructions on page 8, except use
mineral
Installing
spirits.
and Removing a Roller Cover
1. To install a cover, hold the dif
retainer
nut. Pull
DO NOT
the dif
heat the mineral spirits.
(See Fig 4.)
fuser and unscrew the
fuser of
f the frame. Slide the
cover over the dif fuser. Install the dif fuser on the
frame and reinstall the nut.
tighten
the nut.
Be careful not to over
2. To remove a cover, hold the cover and unscrew the
retainer
frame,
rate it from the cover
3. To
ough
stall
nut. Slide the cover and dif
and press on the end of the dif
.
clear an obstruction in the frame, or for more thor
cleaning,
remove the setscrew
the setscrew after cleaning.
fuser
of
f the roller
fuser to sepa
. Be sure to rein
Cleaning
the Roller Diffuser
(See Fig 5.)
1. For water-base paint (latex), vigorously shake the
diffuser in a pail of hot, soapy water to remove wet
For oil-base paint, use unheated mineral
paint.
its. Use a soft brass bristle brush to remove dried
paint.
2. Disassemble the dif fuser if further cleaning is
needed.
a. Remove
two screws. Pull of
f the outside end
the
cap. Disassemble all parts and clean thoroughly
in
-
water or mineral spirits.
b. Install the inside end cap on the frame. Lightly
-
-
grease the u–cup packing with petroleum jelly .
the dif
Slide
T
wist and press the last dif
the
pieces together
fuser segments onto the roller frame.
fuser segment to snap
.
spir
-
RETAINER
NUT
P
U–CUP
Lips must face diffusers,
as shown
with petroleum jelly
Fig 4
ACKING
.Grease lightly
.
DIFFUSER
SEGMENT
SETSCREW
FRAME
0244
c. Install the outside end cap and the two screws.
Holding the inside end cap, press on the two
screws
and rotate the dif
fuser segments to seat
the screws. Tighten the screws evenly into the
inside end cap. Be sure there is no binding
that the dif
INSIDE END CAP
Fig 5
fuser segments move freely
SCREW
DIFFUSER
SEGMENT
OUTSIDE
END
CAP
.
and
0245
307-730
9
TROUBLESHOOTING GUIDE
Ç
WARNING
Pressure
To
reduce the risk of serious bodily injury
Relief Procedure
, including
Thoroughly flush the system after each use to re-
down time and costly repair bills.
duce
injury from moving parts, or electric shock, always
this procedure whenever you shut of
follow
when checking or servicing any part of the sys
tem,
and whenever you stop painting
tem
urn the ON/OFF switch to OFF
1. T
2.
Unplug the power supply cord.
3. Trigger the roller
If
you suspect that pressure is not fully relieved after
following
turns
PROBLEMCAUSESOLUTION
Pump
the steps above,
counterclockwise.
will not prime, or takes long time to prime
valve to relieve pressure.
open the priming valve
f the
sys
-
-
NOTE: If
.
.
2
Clogged
suction tube filter
Paint
too thick
Outlet valve spring worn or damaged
Inlet valve stuck or damaged
you are not able to determine the
problem, or the problem and solution is not
cussed
thorized
in this chart, return the system to an au
service agency for repair
Clean.
Thin; try pouring
Pour paint
If it doesn’t prime in one minute, replace the outlet
See Outlet V
spring.
Depress
valve gently and pour in about 1 teaspoon
mineral
spirits. T
necessary.
CAUTION
paint
into suction tube.
into suction tube and try
alve, page 13
ry to
See Inlet V
prime pump. Replace valve if
alve, page 13
DEPRESS LIGHTLY.
POUR IN 1 TEASPOON
MINERAL SPIRITS.
cause of the
dis
.
to prime system.
.
.
-
-
Loose inlet hose nut
Pump will not startPower cord unplugged
ON/OFF switch turned of
Damaged motor
Fuse burned out.
Low
or no
paint
Pump
10
runs after
307-730
flow
roller valve
trigger is released
Clogged roller cover , dif fuser, roller frame,
valve, or hose
roller
Using
more than 25 ft. (7.6 m) of 1/4” ID hose
Loose inlet hose nut
W
orn or damaged priming valveReplace. See page 14
Priming valve is open
Paint
too thick
Damaged pressure switch
W
orn inlet and/or outlet valve
Worn
or damaged pressure switch
W
orn or damaged inlet valve
W
orn or damaged outlet valve
W
orn or damaged priming valveReplace. See page 14
W
orn roller
valve packings or needle
fT
0289
Tighten
Plug in.
urn on.
Replace. See page 15
Replace.
turn
pair.
Clean thoroughly after each use. See Flushing on
page
Use up to 100 ft. (30 m) of 3/8” ID hose. See CAUTION
Tighten.
Close.
Thin: Follow manufacturer‘s recommendations.
Replace. See page 13
Replace. See page 13
Replace. See page 13
Replace. See page 13
Replace. See page 13
Repair
See page 12
the system to an authorized repair agency for
8.
on page 2.
. See page 1
.
. If it burns out again soon, re
re
.
.
.
.
.
.
.
1.
-
-
Roller
V
alve
WARNING
Always follow the Pressure Relief Procedure
Warning
NOTE: Order
on page 10 before attempting any repair
Repair Kit P/N 218–960 to repair this
roller
valve.
1. Tap
2. Remove
3.
4. T
out the pin (A) from the trigger (B) and slide the
trigger
of
f of the valve (N). See Fig 6
.
the cap (C). Use a 1/2 in. socket wrench to
screw
the fluid housing (D) out of the valve. Remove
the
o–ring (J). See Fig 6
.
Pull the needle (K) out with needle nose pliers. See
Fig 6
.
ap the seat (G) out of the valve (N). See Fig 6
.
5. Remove the ball (F) and spring (E) from the valve
handle.
6. Turn
the
and
See
7. Clean
or
See Fig 6
the nylon screw (L)
needle (K) through the bottom of the housing (D)
push the packing out the top of the fluid housing.
Fig 7
.
all parts
pipe cleaner to clean small orifices.
.
thoroughly
into the packing (H). Insert
. Use a cotton-tipped swab
N
.
J
K
D
C
B
E
F
A
G
H
Fig 6
0290
L
H
D
K
8. Grease
pered
packing.
9. Guide
bly
end
10. Guide
needle
the needle (K) and packing (H). Insert the ta
end of the needle into the back (flat) side of the
See Fig 8
.
the tapered end of the needle into the assem
tool (M) and press
of the tool. See Fig 8
the lips of the packing over the
.
the tool (M) into the fluid housing (D) until the
protrudes through
the bottom of the housing.
Lightly tap the end of the tool until you “hear” the
packing
pliers.
11. Grease
bottom in the housing. Remove the tool with
See Fig 8
.
the seat (G) and place it on the fluid housing
so the seat which is formed on the inside diameter
faces
12. Install
out. See Fig 9
the spring (E) in the spring cavity of the valve
.
handle (N), then install the ball (F) so it is centered
the spring. See Fig 9
on
13. Place
the o-ring (J)
lightly
with your fingers, start the threads of the
.
around the fluid housing. Pushing
ing into the valve handle. T orque the housing to
in–lb (2.6–3 N.m). See Fig 9
23–27
.
hous
-
-
Fig 7
LIPS OF P
(H) F
ACE OUT OF
HOUSING (D)
ACKING
TAPERED
MHKD
Fig 8
0291
END
0292
G
SEA
T MUST
F
ACE BALL
C
GREASE
-
E
Push on the needle until you feel some resistance.
14.
15. Grease the cap (C) and place it on the end of the
needle.
See Fig 9.
16. Slide the trigger (B) into place. Install the pin (A) in
the trigger
. See Fig 6.
TORQUE TO
23–27 in–lb
(2.6–3 N.m)
Fig
9
D
J
P
CENTER ON SPRING
307-730
N
0293
11
WARNING
Pressure
To
reduce the risk of serious bodily injury
Relief Procedure
, including
injury from moving parts, or electric shock, always
follow
this procedure whenever you shut of
when checking or servicing any part of the sys
tem,
and whenever you stop painting
tem
urn the ON/OFF switch to OFF
1. T
2.
Unplug the power supply cord.
3. T
rigger the roller valve to relieve pressure.
If
you suspect that pressure is not fully relieved after
following
turns
the steps above,
counterclockwise.
open the priming valve
f the
sys
-
-
.
.
2
WARNING
These
repair procedures should be performed only
by qualified repair person with an electrical background,
using the proper tools. Failure to
cedures correctly can result in electric shock, or oth
serious injury and damage to the pump.
er
NOTE: For
all electrical repair
, follow the
do the pro
-
-
Pressure Re
lief Procedure W arning above. Then remove
base cover (42). Before checking or operat
the
the system, reinstall the base cover
ing
sure
all wires are tucked in neatly
Fuse
1. Pull
Rectifier
1.
2.
(See Fig 10
.)
the old fuse out of the fuse holder (65). Install a
new
fuse (67).
rated
at 1–1/4 amps.
Be sure you install ONL
(See Fig 1
1.)
Disconnect the four leads from the rectifier
Remove the screw (33) and rectifier (39).
, making
.
Y a 3AG fuse,
.
3. Install a new rectifier so the positive terminal (+) is
closest
4. Connect
to the fuse holder (65). Install the screw (33).
the power supply cord’
s white lead to an un
marked terminal. Connect the pressure switch lead
to the other unmarked terminal. Connect the black
motor lead to the negative (–) terminal, and the red
lead to the positive (+) terminal.
motor
36
84
A
38
34
82
33
25
39
65
67
33
42
37
Fig 10
307-730
12
-
-
-
80
81
43
33
0294
ON/OFF Switch
(See Fig 10
and 1
1.)
1. Disconnect the two leads from the ON/OFF switch
terminals. See Fig 1
(34)
2. Remove
the base. Remove
the boot (36) and pull the switch (34) out of
1.
the ground wire (84). See Fig
10.
3. Remove the top nut (A) from the new switch. Place
the
ground wire connector (84) on the switch and re
the nut. Install the new switch, aligning the tab
install
in the base
the boot.
stall
with
the slot in the switch. See Fig 10. In
4. Connect a pressure switch lead to the power-OUT
terminal, and a jumper wire lead to the power-IN
terminal.
See Fig 1
Power Supply Cord
1. Disconnect
the white lead from the rectifier (39), and
1.
(See Fig 10 and 1
1.)
the black lead from the fuse holder (65), and the
lead from the grounding screw (82).
green
2. From the inside of the base, use a screwdriver to
push the strain relief bushing (38) out of the base.
Remove
the bushing and power supply cord.
3. Slide the strain relief bushing over the new power
supply cord. Press the bushing together and then
the bushing into the base.
press
4. Connect the green ground wire to the grounding
(82) and secure it with a washer (81) and nut
screw
(80). Connect the black lead to the fuse holder (65)
and the white lead to an unmarked terminal on the
rectifier (39).
WARNING
To maintain grounding continuity in your system,
to
reduce the risk of electric shock, check to be
and
sure
the ground wires are properly connected. The
power
supply cord’
s green ground wire connects
to
the screw (82), and the ground wire (84) connects
between the ON/OFF switch and the screw (82).
Also be sure the screws (25 and 33) are tightly
screwed
into the base. See Fig 10 and 1
WHITE
84
34
33
39
PRESSURE
SWITCH
1.
(2)
LEADS
38
37
OUT
IN
MOTOR
LEADS
JUMPER
WIRE
GROUND
Fig 11
GREEN
WIRE
65
RED
33
25
82,81,80
0295
-
-
Pressure
Switch
(See Fig 1
1, 12 & 13
.)
1. Disconnect the pressure switch leads from the ON/
switch and from the rectifier
OFF
Remove the front cover (23). See Fig 13
2.
Unscrew the retainer (14) and remove the pressure
3.
switch (12) and o-ring (12a). See Fig 12
. See Fig 1
.
.
1.
4. Grease and install a new o-ring (12a) in the pump
housing
Slide the retainer (14) over the pressure switch and
5.
screw
retainer
(9). See Fig 12
the retainer into the pump housing. T
to 55–65 in–lb (6.2–7.4 N.m). See Fig 13
.
orque the
6. Guide the pressure switch leads through the base.
Connect a lead to the power-OUT side of the ON/
switch (34) and connect the other end to an un
OFF
marked
Reinstall the front cover
7.
terminal on the rectifier (39). See Fig 1
.
1.
CAUTION
To
avoid damaging the pressure switch, do not
it
or press on the center of the switch.
Outlet V
1. Remove
alve
(2a) and remove the gasket (2b)
ting
(See Fig 12
the
outlet hose (64). Unscrew the outlet fit
.)
and spring (2c).
drop
2. Grease
in
ing
hold
the inlet valve (3)
to hold it in place. Install it
the valve housing (9). Screw the inlet valve hous
(1) into the pump housing. Have someone firmly
the pump housing (9) and then torque the inlet
-
valve to 470–490 in–lb (53–55 N.m).
1
.
9
12a
LUBRICATE
12
280–300 in–lb
10
2f
2e
2d
TORQUE TO
(32–34 N.m)
TORQUE TO
80–100 in–lb
(13.5–16 N.m)
2
2c
2b
2a
14
TORQUE TO
55–65 in–lb
(6.2–7.4 N.m)
-
Fig 12
0296
2. Tip
the pump forward to remove the ball (2d).
3. Use a 1/4 in. square socket wrench extension to
out the seat (2e).
screw
4. Use a pointed tool, such as a dentist’ s pick, to re-
the seal (2f).
move
5.
Thoroughly clean and dry all parts.
6. Tip the pump back. Install a new seal (2f), making
it lays flat.
sure
7. Install the seat (2e) and torque it to 80–100 in–lb
(13.5–16
8.
Drop in the ball (2d),
N.m).
making sure it stays there!
CAUTION
Do
not let the
(12). If that happens, and the outlet fitting (2a) is
ity
ball drop into the pressure switch cav
-
screwed into the pump, the switch will be perma-
damaged.
nently
9. Check the ball stop pin in the outlet fitting (2a) for
wear or damage. Replace the fitting, if necessary .
Place a new gasket (2b) around the fitting. The last
on one end of the spring (2c) is turned in. Place
coil
this
end on the ball
stop pin. Screw the fitting into the
pump housing, torquing to 280–300 in–lb (32–34
).
N.m
TORQUE TO
470–490 in–lb
(53–55 N.m)
44
45
1
3
9
23
24
Inlet Valve
1. Unscrew
(See Fig 13
.)
the nut (45) on
the suction hose (44). Screw
the inlet valve housing (1) out of the pump housing
Remove the inlet valve (3).
(9).
Fig
13
307-730
0787
13
Diaphragm (See
PTFE
PTFE
PTFE
PTFE
PTFE
PTFE
Fig 14
.)
CAUTION
Replace the diaphragm whenever you remove the
pump housing (9), or after each 100 hours of use,
whichever comes first. During use, small grooves
are formed in the diaphragm which cannot be realigned properly. Reusing a diaphragm may cause
leaking,
resulting in costly pump damage.
1. Remove the screws (15). Tip the pump housing (9)
back, being careful not to damage the wires. Re-
the front cover (23).
move
2. Check
the diaphragm guide (1
1) in the
pump housing (9) and replace it if is worn or dam-
Clean the pump housing thoroughly
aged.
new
guide, flat
your
3. Screw
fingers.
the diaphragm (17)
side first, into the housing,
Be sure it is installed evenly
out of the connecting rod
assembly (18).
a soft
4. Use
brass or nylon bristle brush to clean the top
of the connecting rod and housing. Taking care not
damage the diaphragm grooves, gently clean the
to
bottom
5. Check
is
ing
of the pump housing (9).
the rod, motor bearing and eccentric. If there
any
paint
or damage,
clean or replace the connect
rod assembly as explained on page 15.
6. Screw the new diaphragm (17) into the connecting
just until it
rod
[about
4–6 in–lb (0.4–0.7 N.m)].
bottoms out.
Then turn it 1/8 – 1/4 turn
CAUTION
Never
turn the diaphragm more than 1/4 turn when
torquing it, as that will prevent the diaphragm from
working
7.
properly
Apply thread lubricant to the screws (15) and install
them
with
.
the lockwashers (16) in the pump housing.
Torque the screws a few inch–pounds (N.m) at a
oppositely and evenly
time,
8.
Spin the motor shaft (D) to be sure it turns freely
Reinstall the front cover (23).
9.
Priming V
alve & T
ube
, to 85 in–lb (9.6 N.m).
(See Fig 15
.)
NOTE: Each new priming valve kit includes a priming
and fittings.
tube
1. Unscrew the nut on the handle (E) of the priming
(10a). Unscrew the stem of the handle.
valve
2. Screw
the priming valve (10a) out of the pump hous
ing (9).
3. Wrap the threads of the priming valve with
Screw the valve
tape.
snugly into the pump housing
(9). The valve handle should be parallel with the
edge of the housing to avoid interference with
angled
the
inlet or outlet valves.
4. Slide the nut (10d) and ferrule (10c) onto the tube
Install the tube support (10b) in the end of the
(10e).
tube.
Screw the nut onto the priming valve, which will
seat
the ferrule.
5. Screw the stem of the handle (E) onto the priming
until it bottoms, and then back it out two turns.
valve
Hand
14
tighten the nut onto the priming
tighten
the stem into the valve.
307-730
valve, and then
bottom of the
. Press the
using only
.
.
44
47
11
17
45
46
18
15,16
9
D
Fig 14
-
47
45
10e
10d
46
1
10c
10b
10a
E
WRAP
9
Fig
15
Suction Tube
-
1. Unscrew
(1). Remove the hose clamp (47). Slit the suction
ing
tube
to free the nipple (46).
(See Fig 15.
)
the nut (45) from the fluid inlet valve
2. With the nipple (46) inserted through the nut (45),
dampen the new hose (44) with warm water and
press the hose over the nipple. Screw the nut onto
the inlet valve housing (1). Press the hose further
onto the nipple, leaving about a 1/8 in. (3 mm) gap
between
3.
Install the hose clamp (47) and tighten snugly
4. Remove
the nut and hose end.
the filter housing (48)
and filter (49) from the
old suction hose. Install these parts on the new hose.
Dampen
and
the hose with warm water to ease the filter
filter housing onto the hose.
LUBRICATE
THREADS;
TORQUE
85 in–lb (9.6 N.m)
T
O
23
24
0298
10
48
49
WITH
T
APE
0786
hous
.
-
Connecting Rod and Bearing
(See Fig 16
.)
1. Remove the front cover (23). Remove the screws
Carefully tip back the pump housing. Unscrew
(15).
the diaphragm (17) and discard it.
CAUTION
Replace the diaphragm whenever you remove the
pump housing (9), or after each 100 hours of use,
whichever comes first. During use, small grooves
are formed in the diaphragm which cannot be realigned properly. Reusing a diaphragm may cause
leaking,
resulting in costly pump damage.
30
69
34
A
PRESS
FIT INT
QTY 2
O 22
17
15,16
LUBRICATE
TORQUE
85 in–lb
(9.6 N.m)
T
9
21,20
GREASE
BEARING
HEAVILY
18a
18b
O
18
2. Remove the motor screws (20). Lift the motor (30)
slightly. Holding the connecting rod (18a), pull the
away from the housing (22).
motor
3. Inspect
If
necting
tric,
4. Use
thoroughly
the bearing (18b) in the connecting rod (18a).
it is worn or any rollers are broken, replace the
con
rod assembly (18). Inspect the motor eccen
and replace the motor if the eccentric is worn.
your fingers to
pack high quality bearing grease
in between the bearing rollers.
CAUTION
Thoroughly
the bearing and the motor eccentric.
5. Use
grease the bearing to extend the life of
a soft
brass or nylon bristle brush to clean the top
of the connecting rod and housing. Taking care not
damage the diaphragm grooves, gently clean the
to
bottom
6. Install
ing
of the pump housing (9).
the connecting rod assembly (18)
(22).
Screw a new diaphragm (17) into the rod just
in its hous
until it bottoms. T urn the diaphragm another 1/8 to
turn [about 4–6 in–lb (0.4–0.7 N.m)].
1/4
CAUTION
turn the diaphragm more than 1/4 turn when
Never
torquing it, as that will prevent the diaphragm from
working
properly
.
7. Align the motor with the pins in the connecting rod
housing
connecting
be
8. Loosely
(22). Guide the motor shaft (A) through the
rod bearing (18b).
sure it moves freely
.
install the lockwashers (21)
Spin the motor shaft to
and screws (20)
to hold the motor. Spin the motor shaft again. Alter-
tighten the screws. Spin the motor shaft
nately
again.
CAUTION
Spinning the motor shaft while assembling the
ensures that parts
pump
are properly aligned. If they
are not, and you start the pump, serious damage
could result to the motor , bearing and connecting
rod. If you feel binding or resistance, disassemble
the parts, checking the spin often, until you deter-
and correct the cause of the binding.
mine
9. Position
housing.
the pump housing (9) on the connecting rod
Lubricate the screws (15)
and loosely install
them and the lockwashers (16). Torque the screws
a few inch–pounds (N.m) at a time, oppositely and
evenly,
10.
Reinstall the front cover (23).
to 85 in–lb (9.6 N.m).
42
43
-
33
-
23
22
Fig 16
39
OUT
IN
MOTOR
LEADS
Fig
-
17
Motor (See
Remove the front cover (23).
1.
Fig 16
and 17
RED
(+)
.)
2. Remove the base cover (42). Disconnect the motor
leads from the positive and negative rectifier termi-
See Fig 17
nals.
.
3. Remove the motor screws (20). Lift the motor (30)
slightly. Holding the connecting rod (18a), pull the
away from the housing (22).
motor
4. Inspect
the bearing (18b) in the connecting rod (18a).
If it is worn or any rollers are broken, replace the
bearing and connecting rod assembly (18) as instructed
5. Use
to the left.
your fingers to
pack high quality bearing grease
thoroughly in between the bearing rollers. See the
CAUTION
following Step 4, to the left.
6. Feed the motor leads through the rubber boot (69).
Align the motor with the pins in the connecting rod
housing
connecting
be
7. Loosely
(22). Guide the motor shaft (A) through the
rod bearing (18b).
sure it moves freely
.
install the lockwashers (21)
Spin the motor shaft to
and screws (20).
Spin the motor shaft again. Alternately tighten the
screws. Spin the motor shaft again. See the
CAUTION,
8. Connect
and the black motor lead to the negative (–) termi
Includes items 2a–2f
. FITTING, outlet
. GASKET 1
. SPRING 1
. BALL
. HOUSING, seat, valve 1
. SEAL, washer
INLET VAL
HOUSING, pump 1
PRIMING VAL
GUIDE, diaphragm
SWITCH, pressure
.O–RING 1
RETAINER 1
1” long
LOCKW
DIAPHRAGM1
CONNECTING ROD & BEARING 1
CAPSCREW
No. 8–32 x 0.625”
LOCKW
HOUSING, conn rod, Always order two
of Ref No. 27 when replacing housing
COVER, front 1
PIN, dowel
Self-tapping, 1/4–14 x 1”
LABEL, identification
BASE, pump
No.8 x 0.875”
SWITCH, toggle
LABEL, identification