Graco 307760A PT 2000 PRESSURE ROLLER SYSTEM Owner's Manual

INSTRUCTIONS-PARTS LIST
307-760
Rev A
This manual contains IMPORTANT
WARNINGS and INSTRUCTIONS
READ AND RETAIN FOR REFERENCE
-
PT2000 Pressure RollerSvstem
17.5 bar (250psi) MAXIMUM WORKING PRESSURE
220-240.
Model
Series A
50 Hz, 220/240Volts, 0.5 Amp
PATENT PENDING'
. . ,. . ..
. ...:', > '
..
.
GRACO INC. P.O. Box 1441 MINNEAPOLIS, MN 55440-1444
@COPYRIGHT 1986, GRACO INC.
TABLE OF CONTENTS
Terms ..............................................................
2
Warnings .........................................................
.2
PT2000 Pressure Roller System
Description...............3
Setup.............................................................
..4
Startup.............................................................
5
Operation., .......................................................
.5
Maintenance
Flushing
6
Installing 8 Removing a Roller Cover
7
Cleaning the Roller Diffuser
................................ 7
Troubleshooting Chart ......................................... 8
Repair
Roller Valve.................................................... 9
Fuse............................................................ 10
ON/OFF Switch............................................. 10
Rectlfler
10
Power Supply Cord
.10
Pressure Switch............................................
.ll
Outlet Valve
11
Inlet Valve ....................................................
.l1
Diaphragm 12
Suction Tube 12
Priming Valve b Tube......................................
12
Motor, Connecting Rod b Bearing......................
13
Parts Drawing 8 Lists........................................
.14
17
Accessories......................................................
Technical Data......................................
Back Cover
Back Cover
Warranty.............................................
.........................................................
....................
B e sure you read-and understand eachof these terms
before reading the rest of the manual.
WARNING: Alerts user to avoid or correct conditions
which could cause bodily injury.
CAUTION: Alerts user to avoid or correct conditions
which could cause damage to or destruction of the
equipment.
NOTE: Gives additional explanationof a procedure or
helpful hints.
.. .......................................................
........................................
..................................................
....................................................
.................................................
Be sure all operators of this equipment read, understand,
and follow the warnings and
instructions in this manual!
.
.
GENERAL SAFETY EQUIPMENT MISUSE HAZAR
Use extreme care
flushing water or solvent into your eyes. Wear protective eyewear.
Be sure the area in whichyou are working is well ventilated, to avoid a buildup of harmful paint fumes.
To reduce the risk of electric shock, donot expose the
system to rain. Always store the system indoors.
Do not
operate the pump with the pump base cover removed.
ELECTRICAL GROUNDIN Never alter or
Electrical grounding is esse
electric shock or other serious
bodily injury from static
sparking. Read and follow the groundinginstructions on
page 3 of this manual.
This system is designed
to be
MAXIMUM WORKING PRESSURE. Use only components or accessorieswhich are designedfor use with
the PTXKX) System.
Any misuse of this equipment, suchas modifying parts,
using incompatible paint or solvent, or using worn or
damaged parts, can cause
the equipment to rupture and
result in serious bodily injury, fire, explosion and property damage.
modify any part of this equipment; doing
so could cause it to overpressurize or malfunction.
Check all parts of the system regulariy and repair or
replace anyworn or damaged parts immediately.
EXTENSION MISUSE HAZARD
A VOID POWER LINES
THIS IS NOT AN AIRLESS GUN EXTENSION(for exAvoid contacting any power lines with the extension.
ample, pole gun). Do not anempt to modify the exten- Contact
with power lines could cause extremely serious
bodily injury, including burns or electrocution.
sion or roller frame, or to use parts which are not designed for use with thissystem. Use the extension onlywith
the roller frame providedwith thissystem.
Improper use of the extension, roller frame, hose or
roller valve can result
in component rupture or explosion
and cause serious bodilv iniurv.
WARNING
Never use l,l,.l-trichloroethane, methylene chloride, other halogenatedhydrocarbon SOlVentS or fluids Containing
such solventsin thisequipment. Such usecould result in a serious chemical reaction,with the possibility Of exPl0sion, which could cause death, serious bodily injury andlorsubstantial property damage.
Consult your fluid suppliers to ensure that the fluids being used are compatible
with aluminum and zinc parts.
2
307-760
PT2ooo PRESSURE ROLLER SYSTEM DESCRIPTION
SUCTIONTUBE
PRIMINGTUBE
INLETVALVE
PAINTSTRAINER
POWERSUPPLY CORD
ADD PLUG ACCORDING
TO LOCAL CODE
7.6 m 126 hl HOSE
SPRING GUARD
~to920mm118to38ln.l
TELESCOPING EXTENSION
Motor
The motor drives the connecting rod whichmoves the
diaphragm.
Pressure Switch
The pessureswitch at the pump outlet turns the motor
on and off to control paint pressure.
Diaphragm
The diaphragm is theheart Of the Pump. Driven by the
connecting rod and motor, the movement of the
diaphragm draws paint from the suction tube and
through to the outlet valve.
12 mm I112 In.) NAP
Inlet Valve
As the diephragm draws paint from the suction tube,
fie paint passes through the inlet valve which opens to
ellow
paint
intothe pump.
Outlet Hose
The hose hasswivel-type couplingsfor easy assembly.
A larger diameter outlet hose end chemical-resistent
Outlet and Suction hoses are available.
see ACCESSORIES on page 17.
Priming Valve
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. Turning the knobclockwise
Roller Valve
causes the paint to flow through the fluid outlet valve The roller valve
controls paint flow to the roller by trigend to the hose, roller valve and extension. gering
it on and off.
Pressure Roller
Outlet Valve
The outlet valve has a ball check which prevents paint
The pressure roller has a telescoping extension anda
from flowing backwards into the pump. This helps keep roller cover for USE on smooth surfaces. Longer extenan evensupply of paint to the roller each time you t r i g
sions end different types of roller covers are available.
ger the roller valve.
See the ACCESSORIES on page 17.
307-760
3
SUCTIONTUBE
PRIMINGTUBE
INLETVALVE
TIGHTEN SNUGLY
WITH LIGHT WRENCH
PAINTSTRAINER
7.6 m (25ftl HOSE
4Wto~mm~18to36in.l
TELESCOPING EXTENSION
HANDTIGHTENONLY
TO MALETHREAD
r
12 m m (112 I".)
ROLLER
COVER
HAND TIGHTEN ONLY
TO AVOID CRACKING
ROLLER COVER
SETUP
I
CAUTION
To avoid prematurewear of pressure switch, never
use more than 7.6 m ( 2 5 f t ) of 114 in. ID outlet
hose. When longer outlet hose is needed, use 3/8
in. ID hose at a maximum of 30 m (100 f t l long.
Never use 114 in.ID and 318 in. ID hose together.
See ACCESSORIES, page 17, for ordering optional hoses.
I
1. Remove all pans from the boxes and assemble
them as shown in Fig 1, following any special notes
on the drawing.
2. Prepare the paintaccording to the manufacturer's
recommendations. Remove anyskin that may have
formed on the top of the paint. If necessary, thin
the paint.
3. Be sure the electrical service is properly rated .for
your sprayer andthat the outlet you us8 is properly
grounded. Install an appropriate plug on the power
supply cord, according to your local electrical code.
Do not use an adapter. All extension cords must
have three wires. Use the chart at the right for
selecting the appropriate wire gauge for the extension cord.
4
307-760
nding) pin of the
e the outlet isproan electrical short
risk of an electric
Inspect the power supplycord and extension cord
before each use. Be sure they are in good condition and have undamaged three-pin plugs. Replace
immediately if either cord shows signs of wear or
4. Loosen the locknut on the telescoping extension
and adjust the extension to the desired length.
Firmly tighten the locknut.
Extension Cord Chart
Cord Length
metsra (feet1
1-30
33-81
61-92
Fig 2
i1-1.Wl
i1W-Ux)I
im3001
Extenalon Cord
C r o Sectlond
~
Area
0.75 mm2
1.0 mm2
1.5 m d
WARNING
To reducethe risk of serious bodily injury, including
injury from moving parts or electric shock, always
follow this procedure whenever you shut off the
system, when checking or servicing any part
of-the
system, and whenever you stop painting.
the systemis primed will cause the valve to erode,
greatly shortening the valve life.
NOTE:
1. Turn the ONIOFF switch toOFF.
2. Unplug the power supply cord.
3. Trigger the roller valveto relieve pressure.
If you suspect that pressure is not fully relieved
after following the steps above, open the priming
valve 2 turns counterclockwise.
1.
2.
3.
4.
Place the suction tubein the pailof paint.
Plug in the sprayer.
Open the priming valve 2 turns counterclockwise.
Turn the ONIOFF switch ON.
5. You can see the paint being drawninto the suction
If your system is hardto prime, first try to
force feedthe suction tube.Hold the suction
tube in a vertical position and pourpaint into
it. Turn onthe system.If the system doesnot
prime within one minute, shut it off. Heavy
viscosity paint may need to be thinned. Be
sure to follow the paint manufacturer's
recommendations on thinning.
6. When the outlet hose and extension tube arefully
primed, the motor willrun when thereis paint demand, but appears to shut itselfoff when there is no
paint demand.
NOTE: An occasional start and stop of the motor
when the roller valve not
is triggered is normal.
tube (if the tubeis clean). As soonas you see paint
flow through the priming tube, close the priming
valve. This usually takes less than
30 seconds.
OPERATION
..
2. Experiment with triggering androlling the paint until
you determine just how often you need to trigger
To reduce the risk of electric shock, do not expose
the
roller valveto keep an evenflow of paint to the
the
system
to
rain.
Always
store
the
system
indoors.
I
W
roller.
3. To adjust the extension tube length, loosen the
CAUTION
locknut and extend or retract
the tube. If retracting,
equipment to warm to room
some paint in the tube will be pushed out to the
temperature before usingto prevent damagingthe
roller. Roll this excess paint onto thewall, or comsystem. Always store the system indoors.
pletely retract the tube, drain
the excess paint into a
pail, then adjust the tube length. Tighten the
CAUTION
locknut securely.
Do not use lacquer or lacquer thinnerin thesuc4.
Whenever
you stop painting, turn the ONIOFF
tion and outlet hoses supplied with this system.
switch
to
OFF
and trigger the roller valve. Then
These fluids quickly destroy the
hose material.Use
elevate the roller endof the tube to prevent paint
the optional chemical-resistant hoses.
from draining out the roller end.
See ACCESSORIES, page 17, for ordering op5. Flush the system thoroughly and immediatelyafter
tional hoses.
each useto keep it in good working order.
See page 6.
r
I
1. With the system fully primed, triggerthe roller valve
briefly until paint comesto the roller.
307-760
5
MAINTENANCE
CAUTION
Thorough flushing and proper maintenance are
essential to keep your system working properly1
Improper flushing or maintenance mayprevent the
system from working the next time you need it,
and may resultin costly damage to the system.
ALWAYS flush your system thoroughly and immediately after each use.
ALWAYS fully extend the telescoping extension
when flushing to clean it thoroughly.
ALWAYS drain all water out of the roller valve and
extension and leavethe system filled with mineral
spirits to prevent corrosion.
Rushing (Letex Paint Only)
1. Turn the ONlOFF switchto OFF.
2. Fully extend the telescoping axtension.
3. Trigger the roller valve androll outthe excess paint
from the roller onto a wall or newspaper. Remove
the roller cover and diffuser, andsoak in a pail of
warm soapy water.
4. Place the suction tube
in the pail of warm soapy water.
Hold the roller frame over
the paint pal, turn on the
system and triggerthe roller valve to drain and save
the paintin the hoses. Rdease the mggerandshut the
pump off just as soon as dl paint is drained, to avoid
contaminating the paintwith the flushing water.
..
.
.
5. Now hold the roller frame over the flushing pail.
Turn on the pump and triggerthe roller valve. Circulate the solution forthree to five minutes Cfwe to
ten minutes if it is cold). Pump the extension rn and
out a few times to clean it, then leave it extended.
Then open the priming velve for a few seconds to
clean the priming tube. Close the velve.
6. Raise the suction tube above the water andrun the
pump for e few seconds to drain the flushing sohtion. Shut off the pump.
7. Wash off all external parts ofthe hoses, extension,
roller frame, roller valve and pump.
8. Using cleen, clear water, flush again, changing
water as often as necessary, until the system is
thoroughly cleaned.
9. Finally, flush the system with clean mineral spirits
for just a few seconds. Open the priming valve and
turn off the pump. Some mineralspirits must be left
in the system to prevent corrosion. Retractthe extension before storing it.
I
C
Never leave wateror water-based paint [latex) in
the system. To prevent corrosionin the pump, extension, roller valve and roller frame, your final
flush must be mineral soirits.
10. Clean the roller cover thoroughly by rinsing it inside
and out. Clean the diffuseras explained on page3.
11. Oil the needle in the roller valve and
trigger the valve
a few times to distribute the oil. See Detail A, Fig 3.
Flushing [Oil-based Paint Only)
NOTE: Follow the instructions above, except use
mineral spirits. Do not heat the mineral
..
.
Fig 3
6
307-760
Installing and Removing
a Roller Cover (See Fig 4)
1 . To install a cover, hold the diffuser and unscrew
the
retainer nut. Slide the cover over the diffuser
assembly and reinstall the nut. Be carefd not fo
overtighten the nut.
2. To remove a cover,hold the cover and unscrew
the
retainer nut. Slide the cover and diffuser assembly
off theroller frame, and presson theend of the diffuser assemblyto separate it from thecover.
Cleaning t h e Roller Diffuser(See Fig5)
1. For water base paint (latex), vigorougly shake the
diffuser in a pail of hot soapy water to remove undried paint. For oil-base paint, use mineral spirits.
Use a soh brass bristlc brushto remove driedpaint.
2. To clear an obstruction in the frame, or for more
thorough cleaning, remove the screw. Be sure to
reinstall it after cleaning.
3. Disassemble if further cleaning is needed.
a. Remove the two screws. Pull off the. outside
end cap. Disassemble all parts and clean
thoroughly in water or mineral spirits.
b. Install the inside end capon the frame. Lightly
grease the O-ring with petroleum jelly. Slide the
diffusers onto the roller frame.Twist and press
the last diffuser to snap the pieces together.
c. Install the outside end cap and
the two screws.
Holding the inside end cap, press
on the screws
and rotate the diffusers to seat the screws.
Tighten the screws evenly into the inside end
cap. Be sure thereis no binding andthat the diffusers move freelv.
INSIDE END CAP
LDIFFUSER
OUTSIDE END -I
CAP
SCREW
Fig 5
Fig 4
307-760
7
WARNING
To reduce the risk of serious bodily injury, including
injury from moving parts or electric
shock, always
follow this procedure whenever you shut off the
system, when checking or servicing any
part of the
system, and whenever you stop painting.
CAUTION
Thoroughly flush the system after each use to
reduce down time and costly repair bills.
1. Turn the ON/OFF switch to OFF.
2. Unplug the power supply cord.
3. Trigger the roller valveto relieve pressure.
If you suspect tbat pressure is not fully relieved
after fo/lowing tbe steps above, open the priming
valve two turns counterclockwise.
TROUBLESHOOTING CHART
PROBLEM
CAUSE
Pump will notprime, or takes long
time to prime
Clogged suction tube strainer
Paint too thick
Outlet valve spring worn or damaged
Inlet valve stuck or damaged
SOLUTION
Clean.
Thin; try pouring paint into suction
tube; use 318 in. ID hose if
necessary.
Pour paint into suction tube and try
to prime system. If it.doesn't prime
in one minute, replace the outlet
spring. See Outlet Valve, page 11.
Depress valve gently and pour in
about 1 teaspoon mineral spirits.
Try to prime pump. Replace valveif
necessary. See Inlet Valve, page 10.
I
Loose inlet hose nut
lighten.
Pump will not start
Power cord unplugged
ONIOFF switch turnedoff
Damaged motor
Fuse burned out
Plug in.
Turn on.
Replace. See page 13.
Replace. See page 10. If it burns
out again soon, return the system
to an authorized repair agencyfor
repair.
Low or no paint flow
Clogged roller cover, diffuser, roller
frame, roller valve or hose
Using more than 7.6 m1 7 3 f t l of
114 in. ID hose.
Loose inlet hosenut
Worn or damaged priming valve
Priming valveis open
Paint too thick
Damaged pressure switch
Worn inlet andlor outlet valve
Clean thoroughly after each use.
See Flushing on page 6.
Use up to 30 m (100 ftl of 318 in.
ID hose. See CAUTION, page 17..
lighten.
Replace. See page 12.
Close.
Thin accordingto manufacturer's
recommendations.
Replace. See page 11.
Replace. See page 11.
Worn or damaged pressure switch
Worn or damaged inlet valve
Worn or damaged priming valve
Worn roller valve packings or needle
Replace. See page 11.
Replace. See page 11.
Replace. See page 12.
Repair. See page9.
Pump runs after roller valve trigger
is released
3TE:
_____
If you are not able to detc
chart, return the system
ne the cause of the problem, orthe pr
In authorized service agencyfor repa
em and solutionis notdiscussed in this
Roller Valve
WARNING
Always follow the Pressure Relief Procedure
Warning on page 8 before attempting any repair.
NOTE:
Order repair kit
roller valve.
no. 218-960 to repair this
1. Tap out thepin (A) from thetrigger (D) and slidethe
trigger off of thevalve. See Fig 6.
2. Remove the cap (Cl. Use a 1 I2 in. socket wrenchto
screw the fluid housing (D) out of the
valve. See Fig
6.
3. Pull the needle (K)out withneedle nose pliers.
4. Tap the seat (G) out of theroller valve(N). See Fig
6.
5. Remove the ball (F) and spring (E)from the valve
handle. See Fig 6.
6. Turn the nylon
screw (L) intothe packing. Insertthe
needle (K) through thetop of the housing (Dl and
push the packing out of the
fluid housing. See Fig7.
7. Clean all parts thoroughly. Use a cotton-tipped
swab or pipe cleanerto clean small orifices.
8. Grease the needle (K) and packing (HI. Insert the
tapered end ofthe needle into the back (flat) side of
the packing. See Fig 8.
9. Guide the tapered end of the needle into the
assembly tool (MI and pressthe lips of thepacking
over the end of thetool. See Fig 8.
10. Grease the free end of the needle. Guide the tool
(MI into thefluid housing until the needle protrudes
through the top of the
housing. Lightly tap thetool
end until you "hear" the packing bottom in the
housing. Remove the tool with pliers. See Fig 8.
11. Grease the seat (GI and placeit on thefluid housing
so the seat which is formed onthe inside diameter
faces out. See Fig 9.
12. Install the spring (E) in thespring cavity ofthe valve
handle, then install the ball (Fl so it is centered on
the spring. See Fig 6.
13. Place the O-ring (J) around the fluid housing.
Pushing lightly with your fingers, start the threads
of the housing into the valve handle. Torque the
housing to 1.7-2.2 N m (15-20
in-lb). See Fig 6.
14. Push on theneedle until i o u feel some resistance.
15. Grease the cap (C)and place it on the end of the
needle. See Fig 6.
16. Slide the trigger (E) into place. Installthe pin (A) in
the trigger. See Fig 6.
"D
C
B
A
- TORDUETO
1.7.2.2N.m
11620 In-lbl
Fig 7
LIPS FACE OUT
OF HOUSING ID1
I ,
TAPERED END
Fig 8
CAUTION
Never attempt to remove the adapter fittings from
either end of the valve body (N). Doing so could
crack the body.
Fig 9
307-760
9
cedures correctly can result in electric shock, or other
WARNING
~
Pressure Relief Procedure
To reduce the riskof serious bodily injury,including
injury from moving parts or electric shock, always
follow this procedure whenever you shut off the
system. when checking or servicing any
part of the
system, and whenever you stop painting.
1. Turn the ON/OFF switch to OFF.
2. Unplug the power supply cord.
3. Trigger the roller valve to relieve pressure.
If you suspect that pressure is not fully relieved
after following the steps above,
open the priming
valve two turns counterclockwise.
~~~~
~
NOTE:
For all electrical repair, follow the Pressure
Relief Procedure Warning
above, andthen
remove the base plate (42). screws (33)and
bumpers (43). Reinstall these parts, making
sure all wires are tucked in neatly, before
checking or operating the system.
Fuse (See Fig 10)
1. Pull the old fuse out of the fuse holder (65) and install a new fuse (67). Be sure you install only a3AG.
1 amp fuse.
Fig 10
ON/OFF Switch (See Fig 10 b 11)
1. Disconnect thetwo leads from the ON/OFFswitch
terminals. See Fig 11.
2. Remove the boot (36)and pull the switch (34)out of
the base. See Fig 10.
YELLOWlQREE
3. Install the new switch, aligning the tab in the base
MOTOR LEAD
with the slot in the switch. See Fig 10. Then install
the boot.
JUMPER WIRE
4. Connect a pressure.switch lead to the power-out
terminal, and a jumper wire lead to the power-in terminal of the new ONlOFF switch.
.Rectifier (See Fig 11)
1. Disconnect the four leads from the rectifier.
2. Remove the screw (33b) andrectifier (39).
3. Install a new rectifier so the positive terminal1 ) Is
closest to the fuse holder (65) and then install the
screw (33bl.
4. Connect the blue lead to an unmarked terminal, and
the pressure switch lead to the other unmarkedterminal. Connectthe black motor lead to the negative
( - terminal, and the red motor leadto the positive
1 + ) terminal.
Power Supply Cord(See Fig 11)
1. Disconnect the power supply cord leads from the
terminal strip (71) by loosening the three screws on
the cord side of thestrip. See Fig 11.
2. Loosen the screw in the side of the strain relief
bushing (38)and pull out the cord.
3. Strip approximately 6 mm (1/4 in.) of insulation off
each endof the new cord. Install the new cord and
connect the leads to the terminal strip as shown in
Fig 11, being sure that each color lead is across
from a like-colored lead.
4. Install an appropriate, three-pin plug on the other
end of the power supply cord.
+
10
307-760
I
YELLOWIQREEN
Pressure Switch (See Fig11, 12 Et 13)
1. Disconnect the pressure switch leads from the
ON/OFF switch and from the rectifier.
2. Remove the screws (24) and front cover (23). See
Fig 13.
3. Unscrew the retainer (14) and remove the pressure
switch (12) and O-ring (13).
4. Grease and install a new O-ring (13) in the pump
housing 19).
5. Slide the retainer (14) overthe pressure switch and
screw the retainer into the pump housing. Torque
the retainer to 6.2-7.4 N.m ( 5 5 - 6 5 in-lb).
6. Guide the pressure switch leads through thebase.
Connect a lead to ihe power-out side of the
ON/OFF switch (34)and a lead to an unmarkedterminal on therectifier (39).
LUBRICATE
7. Reinstall the front cover plate.
-
CAUTION
To avoid damaging the pressure switch, do not
drop it, and do not press on the center of the
switch.
Outlet Valve (See Fig 12)
1. Remove the outlet hose (64)and unscrew theoutlet
fitting ( 2 1 )and remove the gasket (2b).
2. Tip the pump forward to
remove the ball (2d).
3. Use a 114 .in. square socket wrench extensionto
screw out theseat (2e).
4. Use a pointed tool, such as a dentist's pick, to
remove the seal (2f).
5. Thoroughly clean all parts and dry.
6. Tip the pump back. Install anew seal (2)
making
sure it lays flat.
7. Install the seat (2e) and torque it to 18-20 N.m
(160-180 in-lb).
8. Drop in the ball, making very sureit stays there!
Fig 12
CAUTION
the outlet fitting (2a) is screwed into the pump, the
9. Check the ball stop pin in theoutlet fitting (2a) for
wear or damage, and replace
the fitting necessary.
if
Place a new gasket (2b) around thefitting. The last
coil on one endof thespring (2c) is turned in. Place
this endon theball stop pin. Screw the fitting into
the pumphousing, torquing to 32-34 N m ( 2 8 0 - 3 0 0
in-lb).
Inlet Valve (See Fig 13)
1. Unscrew the suction hose (44)from theinlet valve
housing (1). Screw the inlet valve housingout of the
pump housing (9).
2. Remove the inlet valve (3).
3. Grease the inlet valve (3) to hold it in place during
assembly and then install it in the valve housing.
Screw the valve housing into the pump housing,
torquing to 53-55 N m 1470-490 in-lb).
NOTE: To torquethe inlet valve, have someonefirmly hold the pumphousing (9).
~i~
13
307-760
11
Diaphragm (See 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 leakingwhich willresult in costly damageto
the oumo.
~
~~
1. Remove the screws (15). and lockwashers (16). Tip
the pump housing (9)back, being careful not to
damage the wires. Remove the screws (24) and
front cover plate (23).
2. Check the diaphragm guide (11) in bottom
the
ofthe
pump housing (9)for signs of wear or damage, and
replace it if necessary. When replacing the guide,
clean the pump housing thoroughly, then press the
new guide,flat side first,into the housing, using onty
your fingers. Be sure it is installed evenly.
3. Screw the diaphragm (17) outof the connectingrod
assembly (18).
4. Using a soft brass or nylon bristle brush, clean
the
top of theconnecting rod and housing. Taking care
not todamage the diaphragm grooves, gently clean
the bottom of the
pump housing (9).
5. Check the rod, motor bearing and eccentricfor any
sign of paint. If there isany paint or damage, clean
or replacethe connecting rod assembly as explained
later.
Fig 14
6. Screw the newdiaphragm (17)into the connecting
rod just untilit bottoms out. Then turn it 114 to 112
turn (2.7-3.6 N m [6-8in-lbl).
CAUTION
Never turn the diaphragm more than 112 turn
when torquing it, as that will prevent the
diaphragm from workingproperly.
7. Apply thread lubricantto the screws (15) and install
them with the lockwashen in thepump housing.
Torque the screws a few Newton-meter (inchpounds) a t a time, oppositely and evenly,
to 9.8N m
( 8 5 in-lb).
WITH
PTFE TAPE
8. Spin the motor shaft ID)to be sure it turns freely.
9. Reinstall the front cover (23)and screws (24).
Priming Valve b Tube (See Fig 15)
NOTE: Each newpriming valvekit includes a priming
tube and fittings.
1. Unscrew the nut on the handle (E)of the priming
valve (loa), then unscrew the stemof the handle.
2. Screw the priming valve (loa) out of the pump
housing 19).
3. Wrap the threads of the priming valvewith PTFE
tape as shown in Fig 15, then screw it snugly into
the pump housing. The valve handle should be
parallel with the angled edgeof the housing to avoid
interference with the inlet oroutlet valves.
4. Slide the nut (10d) and ferrule(1Oc) onto the tube
(10e). then install the tube support
(lob) in the end
of the tube. Screw the nut ontothe priming valve,
which will seat the ferrule.
5. Screw the stem of the handle (E) onto the priming
valve until it bottoms, then back it out two turns.
Screw the nut hand tight onto the priming
valve,
then tighten thestem into the valve.
12 307-760
Fig 16
Suction Tube (See Fig 15)
1. Unscrew the nut(45)from thefluid inlet valve housing (1). Remove the hose clamp (47). Slit the suction hose to free the nipple(46).
2. With the nipple 1 4 6 ) 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,then press the hose further
onto thenipple, leaving abouta 118 in. (3 mm) gap
between the nutand hose end.
3. Install hose clamp(471 and tighten snugly.
4. Remove the filter housing (48)and strainer(49)from
the old suction hose and installthem on the new
hose. Dampen the hose with warm water to ease
assembly.
Connecting Rod and Bearing
(See Fig 16)
1. Remove the screws (241and front cover plate (231.
Remove the screws (151 and lockwashers (16) and
tip the pump housing (91 out of theway. Unscrew
the diaphragm (171 and discard.
r
CAUTION
Replace the diaphragm (17) whenever you remove
the pump housing (9). During use, small grooves
are formed in the diaphragm which cannot be
realigned properly. Reusing a diaphragm may
cause leakingwhich willresult in costly damage to
the pump.
2. Remove the motor screws 120) and lockwashers
(21). Lift the motor (30) slightly. Holdingthe connecting rod, pull the motoraway from the housing
(22).
1
3. Inspect the bearing (18b) in the connecting rod
(18a). If it looks worn or any rollers are broken,
replace the bearing and rod assembly (18). Inspect
the motoreccentric, and replace the
motor if the
eccentric is worn.
4. Use your fingersto pack high-quality bearing grease
thoroughly inbetween the bearing rollers.
Thorough greasing of the bearing is essential
to ex-
I tend
C the
A lifeUof the
T bearing
l o and
Nmotor
the eccentric.
33
1 4 2
Fig 16
Motor (See Fig161
1. Remove the screws (24) and front cover plate (23).
top ofthe connectingrod and housing. Taking care
2. Remove the screws (33). bumpers (431 and bottom
not to damage the diaphragm grooves, gently clean
cover plate (42). Disconnect the motor leads from
the bonom of the pump
housing (9).
the positive and negative rectifier terminals. See Fig
11, page 12.
6. Install the connecting rod (18) in the connecting rod
housing (22).Screw a new diaphragm (17)into the
3. Remove the motor screws (20)and lockwashers
rod just until it bottoms. Turn the diaphragm 114to
(21). Lift the motor (30) slightly. Holding the con112 turn more (2.7-3.6 N m (6-8 in-lbl). Do not turn
necting rod, pull the motoraway from the housing
more than 112 turn, or the diaphragm will not func(22).
tion properly.
4. Inspect the bearing (18b) in the connecting rod
7. Align the motorwith the pinsin theconnecting rod
(18a). If it looks worn or any rollers are broken,
housing (22). guiding the motor eccentric through
replace the bearing and rod assembly (18) as inthe connecting rodbearing (18bl. Spin the motor
structed tothe left.
shaft to be sureit moves freely.
5. Use your fingersto pack high-quality bearing grease
8. Loosely install the lockwashers (21) and screws
(20)
thoroughly in between the bearing rollers.
to hold the motor.
Spin the motorshaft again. Now
6. Feed the motor leads through therubber grommet
alternately tighten the screws with a 9/64 in. hex
(69).Align the motor with the pinsin the connecting
key wrench. Spinthe motorshaft again.
rod housing ( 2 2 1 , guiding the motor eccentric
through
the connectingrod bearing (18b).Spin the
CAUTION
motor shaft to be sure it moves freely.
Spinning the motor shaft while assembling the
pump ensures that parts are properly aligned. If
7. Loosely install the lockwashers (21)
and screws(20).
they are not, and you start the pump, serious
Spin the motorshaft again. Alternatelytighten the
damage could result to the motor, bearing, and
screws with a 9/64 in. hex key wrench. Spin the
connecting rod. If you feel binding or resistance,
motor shaft again. See the CAUTION in step 8 of
disassemble the parts, checking
the spin often,unConnecting Rod and Bearing.
til you determine the cause of the binding.
8. Connect the red motor lead to thepositive ( + I terminal andthe black motor lead to thenegative (
9. Position the pump housing (9) on the sprayer.
terminal of therectifier (39). Refer to Fig 11.
Lubricate the screws (15) and install them and the
9. Reinstall thefront cover d a t e ( 2 3 ) and screws (24).
lockwashers (16) loosely. Torquethe screws a few
inch-pounds ( N m ) at a time, oppositelyand evenly,
to 85 in-lb (9.8 N m ) .
10. Reinstall the front cover plate ( 2 3 ) and screws (24).
5. Using a soft brass or nylon bristle brush, cleanthe
-
307-760
13
14
307-760
PARTS DRAWING
Detail A
Ref No. 55
Includes items
55
SEE PARTS DETAIL ABOVE
307-760
15
PARTS LIST
PRESSURE ROLLER SYSTEM
Model 220-240,Series A
Includes items 1-69
REF PART DESCRIPTION
NO. NO.
2a
2b
2c
2d
2e
2
3
9
10
11
..
12
13
14
15
16
17
18
20
21
22
23
24
25
26
27
28
29
30
3oa
31
32
33
181-172 HOUSING, valve, inlet
*21asn OUTLET VALVE KIT
Includes items2a-2f
.FITTING, outlet
.GASKET
.SPRING
.BALL
.HOUSING, seat, valve
.SEAL, washer
INLET VALVE KIT
181-146 HOUSING, pump
w a s 7 3 PRIMING VALVE KIT
GUIDE, diaphragm
SWITCH, pressure
- .....RETAINER
O-RING
CAPSCREW, socket head:
5/16-18x1-1/8" long
104-008 LOCKWASHER.
. .sorinn.
-. 5/16"
'275619 DIAPHRAGM
21a981 CONNECTINGROD 8 BEARING
108-237 CAPSCREW, socket head;
- -
an
I
1 /A"
--
-
lnelt~das
item
1
o
a
...-.
. .. .
"
"
596-421 .TERMINAL
181-573 BASE, pump
181-182 HANDLE
108-224 SCREW. thd forminn.
-. .onh:
No. 8x718"
34
SWITCH, toggle
LABEL, designation, right hand
TOGGLE, boot
CORD, power supply
BUSHING, strain relief
RECTIFIER, bridge
WIRE. iumoer (not shown)
TERMINAL, ground
COVER, base
BUMPER
TUBE, suction
NUT, coupling
NIPPLE, hose
CLAMP, hose
HOUSING. filtel
FILTER
37
38
39
40
~.
41
..
42
43
44
45
46
5%
1
1
4
60
2
64
2
1
1
2
1
1
6
w-1m
181-167
".
181-574
108-220
181-231
181-159
181-160
108231
1R1-1M
".
5%
55d
2
2
105679
181-213
105659
181-626
106013
108420
181-163
1
1
-
108213N
i,
dowel
108230 SCREW, mach. hex washer head;
self tapping; ii4-14x 1"
181-215 LABEL, designation, front
181-575 MOTOR, electric
DESCRIPTION
NO. NO.
35
36
N
..n. ~17-39Y.. 5/R"
-,
100-079 LOCKWASHER, spring, 0.168"
181-147 HOUSING, conn rod; Always order
two of Ref No. 27 when replacing
housing
181-166 COVER, front
108236 SCREW, mach, filh, No. a32x1.75"
102-313 CAPSCREW, hex head;
1/4-20 x 1.75"
100-028 LOCKWASHER, internal, shakeproof;
REF PART
62
63
65
67
68
69
70
71
72
I A..M
178342 C
-_.
...P,~.hose
..
.
.
181-613 LABEL, Warning
181-214 LABEL, designation, left hand
218-935 FRAME, roller
Includes items%-!%e
218-934 .DIFFUSER, roller
108-186 .O-RING, retainer
275-644 .NUT, retainer
".
218-582 .FRAME. roller
101-983 .SETSCREW
21a954 VALVE, roller
107-590 COVER, roller, 112" nap
218775 EXTENSION, adjustable, 0.450.9 rn
(1E-36") long
HOSE, fluid, nitrile rubber; 6 mm
11/4") ID; cpld 318 npsm(f); 7.8m
125') long
lly1-199
." ."
HOLDER, fuse
*108-419 FUSE, electrical, 3AG, 1 amp
108-223 SCREW, thd forming, pnh;
No. 6x112"
181-218. GROMMET, rubber
100-072 NUT, hex, MSCR; No. 6-32 UNC9B
108421 STRIP, terminal
104-038 SCREW, mach. pnh;
No. 6-32-2a x 0.75"
'Recommended "tool box' spare parts.
See "How To Order Replacement Parts"on page 17.
ROLLER VALVE REPAIR KIT 218-960
Includes items A through H
Individual partsnot sold separately.
See page 9 for instructions.
16
307-7131
W
an
1
4
1
i
1
2
~
~~
~~~
~
ACCESSORIES (Mustbe purchased separately)
3 in. ROLLER FRAME e DIFFUSER 220-234
CAUTION
To avoid premature wearof the pressure switch,
never use morethan 7.6 m I 2 5 f t ) of 6 mm ( 1 I4 in.)
ID outlet hose. When longeroutlet hose is needed,
use 9 mm (318 in.) ID hose at a maximum of 30 m
(100 f t l long. Never use 6 mm (1/4 in.) ID and
9 mm (3/8 in.) ID hose together.
Same as 9 in. version but shorter. Must order cover
separately.
3 in. ROLLER COVER 108402
1/2 in. (12mm) nap, for semi-rough to smooth surfaces.
9 in. ROLLER COVERS
107-590 12mm (1/2in.) nap, forsemi-rough tosmooth
surfaces
107-691 19 mm (3/4 in.) nap, for semi-rough surfaces
10X
7
!-%!
32 mm (1-1/4 in.) nap, for rough surfaces
Do not use lacquer or lacquer thinner in the suction and outlet hoses supplied with this system.
These fluids quickly destroy thehose material. Use
the optional chemical-resistant hoses.
CHEMICAL-RESISTANT SUCTION b OUTLET
HOSES
For use with lacquer and lacquer thinners.
205142 Outlet Hose; Nylon; 9 mm (3/8”1ID; cpld 3/8
npsm(fbe1; 7.6 m (25);21 bar l3oy)psi)MAXIMUM WORKING PRESSURE
219-095 Suction Hose; Nylon
LARGER DIAMETER OUTLET HOSE
Use this hose when using more than 7.6 m (25 f t ) of
outlet hose. Not intended for use with lacquer or lacquer
thinners.
220-009 Outlet Hose; 9 mm (3/8”) ID; cpld 318
npsm(fbe1; 15 m (50’); 17.5bar l25opsil MAXI M U M WORKING PRESSURE
NIPPLE 108-228
Needed to couple two lengths of hose 220-009.
3/8 npsmlmbel
ADJUSTABLE EXTENSION TUBES
210-775 0.45-0.9 m 118-36 in.)
216-776 O.al.8-m ($6
210-777 1.8-3.7 m 16-12
t)
.~ f~~.
218-T18 2.4-4.8 m I
s16 f t )
fir
~~
SPRAY WAND 220-238
4050psi 1260 barl MAXIMUM WORKING PRESSURE
Creates soft spray when usedwith the PT2OW.
TWO ACCESSORY ADAPTER220-232
ldlx) OS; 170 barl MAXIMUM WORKING
PRESSURE
Adapts pump outlet of P T b to use two accessow ao~~
~
~
plicators simultaneously.
FLUSH ADAPTER220-231
Allows you to use the city water supplyto quickly flush
the PTZOOO.
ADAPTER FlITlNG 220-265
5aao psi I350 bar) MAXIMUM WORKING PRESSURE
Couples roller framedirectly to roller valve.
HOW TO ORDER REPLACEMENT PARTS
1 . To be sureyou receive the correct replacement parts,
kit oraccessories, always giveall of the information
requested in the chart below.
2. Check the parts listto identify the correctpart number;
do notuse the ref. no. when ordering.
3. Order all parts from your nearest Graco distributor.
6 digit
PART
I
PART DESCRIPTION
QTY
NUMBER
I
I
I
307-760
17
TECHNICAL DATA
Maximum Operating Pressure: 17.5 bar (250 psi)
Power Requirements: WHz, 220/240Vac. 1
Phase, 0.5 amp
Pump Output: 3.8 liter (1 gallon) in 5
minutes
Power Supply Cord: No. 16 AWG, 3 wire, 6
(1.7 m) long
Wetted Parts: Aluminum, Brass, Viton,
Delrin, Polyurethane.
Polypropylene, Neoprene,
Tungsten Carbide, Stainless
Steel, Nylon, plated steel.
Buna-N
Weight: 6.1 Kg (13.5 Ib)
.... .
THE GRACO WARRANTY AND DISCLAIMERS
.
.
I
I
.
.
.
.
.
I
.: , ..
.
..
Graco warrant8all equipment manufactured byit and bearingits name to be free from defects in material and workmanshipon the date of =le
by an authorized Gram distributor to the original purchaser for use. As purchaser'ssole remedy for breachof this warranty. Gram will, for a
- r i d of t
w
e
v
le months from the date of 0818. reoair or WDIBCB
any cart of the Bauioment omven defective. Thiswarrenw awlies onlv when the
equipment is instelled. operated and maintain&in accordance with'Graco'swritien recommendations.
This wananty does not cover, and Graco shallnot be liable for, any malfunction, damage or wear cauaed by faulty installation. misapplication,
abrasion, wrrosion, inadequate or improper maintenance, negligence, accident, tempering. or subsmution of non-Graco component part% Nor
s h a l l Graco be iiabie for malfunction,damage or wear caused bythe incompatibility with Graco equipment of BvucNm, accessories. equipment o r materials not supplied by Graco, or the improper design, manufacture, installation, operation or maintenanca of Bvucturea. ecCBsSones, equlpment or materiais not supplied by Graco.
This warranty is conditioned uponthe prepaid returnof the equipment claimedto be defenive for emminetion by Graco to =rib the claimed
defect. If the claimed defect is verified. Graco will repair or replace free of charge any defective pans.The equipment m'll be returned to the
orlginal purchaser transporntion prepaid. If inspection of the equipment does not disclose any defectin material or workmanship. repelre
mll be
made at a reasonable charge. which charges may includethe the costs of pans, labor and Vansportation.
DISCLAIMERS AND LIMITATIONS
IN LIEU OF ANY OTHER
THE TERMS OF THIS WARRANTY CONSTITUTE PURCHASERS SOLE AND EXCLUSIVE REMEDY AND ARE
WARRANTIES (EXPRESS OR IMPLIEDI. INCLUDING WARRANTYOF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PAROR
TICULAR PURPOSE, AND OF ANY NON-CONTRACTUAL LIABILITiES, INCLUDING PRODUCT LIABILITIES. BASED ON NEGLIGENCE
STRICT LIABILITY. EVERY FORM OF LIABILITYFOR DIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES OR LOSS IS EXPRESSLY EXCLUDED AND DENIED. IN NO CASE SHALL GRACOS LIABILITYEXCEED THE AMOUNT OF THE PURCHASE PRICE. ANY ACTIONFOR
BREACH OF WARRANTY MUST BE BROUGHT WITHIN TWO 12) YEARS OF THE DATE OF SALE.
Factory Brenche.:Atlanta.
Dallas. Detrolt. Loa Angeles. West Caldwall lN.J.1
Subsidiary and Affiliate C m p a n i e s : C a n e d a : England; Switzerland: France: Germany: Hong Kong: Japan
GRACO INC. P. 0. BOX I441 MINNEAPOLIS, MN 55440-1444
PRINTED IN U.S.A. Xl7-760 l a S

* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project