symbol alerts you to the possibility of damage to
or destruction of equipment if you do not follow the
instructions.
FIRE AND EXPLOSION HAZARD
Improper
result in a fire or explosion and serious injury
grounding, poor ventilation, open flames or sparks can cause a hazardous condition and
.
If there is any static sparking or you feel an electric shock while using this equipment,
ing immediately. Do not use the equipment until you identify and correct the problem.
Provide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid
being sprayed.
Keep the spray area free of debris, including solvent, rags, and gasoline.
Electrically disconnect all equipment in the spray area.
Extinguish all open flames or pilot lights in the spray area.
Do not smoke in the spray area.
Do not turn on or of
Do not operate a gasoline engine in the spray area.
Use only with a grounded outlet that matches the grounded plug of this equipment.
f any light switch in the spray area while operating or if fumes are present.
stop spray-
WARNING
INJECTION HAZARD
Spray
from the gun, leaks or ruptured components can inject fluid into your body and cause extremely
serious injury, including the need for amputation. Fluid splashed in the eyes or on the skin can also
cause serious injury
Fluid injected into the skin is a serious injury
injury
. Get immediate medical attention.
Do not point the gun at anyone or at any part of the body
Do not put your hand or fingers over the spray tip.
Do not stop or deflect leaks with your hand, body
Do not “blow back” fluid; this is not an air spray system.
Always have the tip guard and the trigger guard on the gun when spraying.
Check the gun dif
Be sure the gun trigger safety operates before spraying.
Lock the gun trigger safety when you stop spraying.
.
fuser operation weekly
. The injury may look like just a cut, but it is a serious
.
, glove or rag.
. Refer to the gun manual.
Follow the
checking or servicing the equipment.
T
ighten all fluid connections before operating the equipment.
Check the hoses, tubes, and couplings daily
repair high pressure couplings; you must replace the entire hose.
Fluid hoses must have spring guards on both ends, to help protect them from rupture caused by
kinks or bends near the couplings.
Pressure Relief Procedure
on page 1
1 if the spray tip clogs and before cleaning,
. Replace worn or damaged parts immediately
TOXIC FLUID HAZARD
Hazardous
inhaled, or swallowed.
Know the specific hazards of the fluid you are using.
Store hazardous fluid in an approved container
state and national guidelines.
fluid or toxic fumes can cause serious injury or death if splashed in the eyes or on the skin,
. Dispose of hazardous fluid according to all local,
, gloves, clothing and respirator as recommended by the fluid and
.
MOVING PARTS HAZARD
. Do not
Moving
parts can pinch or amputate your fingers.
Keep clear of all moving parts when starting or operating the pump.
Before servicing the equipment, follow the
equipment from starting unexpectedly
Pressure Relief Procedure
.
on page 1
1 to prevent the
WARNING
EQUIPMENT MISUSE HAZARD
INSTRUCTIONS
Equipment
This equipment is for professional use only
Read all instruction manuals, tags, and labels before operating the equipment.
Use the equipment only for its intended purpose. If you are not sure, call your distributor
Do not alter or modify this equipment. Use only genuine Graco parts.
Check equipment daily
Do not exceed the maximum working pressure of the lowest rated system component. Refer to the
T
Use fluids and solvents which are compatible with the equipment wetted parts. Refer to the
nical Data
Do not use 1,1,1–trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or
misuse can cause the equipment to rupture or malfunction and result in serious injury
.
echnical Data
. Repair or replace worn or damaged parts immediately
on page 27 for the maximum working pressure of this equipment.
.
section of all equipment manuals. Read the fluid and solvent manufacturer’s warnings.
.
fluids containing such solvents in pressurized aluminum equipment. Such use could result in a
chemical reaction, with the possibility of explosion.
Do not use hoses to pull equipment.
Route hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not expose
Graco hoses to temperatures above 82C (180F) or below –40C (–40
F).
.
Tech-
Do not lift pressurized equipment.
Comply with all applicable local, state, and national fire, electrical, and safety regulations.
NOTE: This
is an example of the DANGER label on
your sprayer
. This label is available in other
languages, free of charge. See page 27 to order
FIRE
AND
EXPLOSION HAZARD
Spray
painting, flushing or cleaning equipment with flammable liquids in
confined
Use outdoors or in extremely well ventilated areas. Ground equipment,
hoses,
A
cloths,
arcs
switches on and of
Failure to follow this warning can result in death or serious injury
areas can result in fire or explosion.
containers and objects being sprayed.
void all ignition sources such as static electricity from plastic drop
open flames
from connecting or disconnecting power cords or turning light
such as pilot lights, hot objects such as cigarettes,
f.
.
READ AND UNDERSTAND ALL LABELS AND INSTRUCTION MANUALS BEFORE USE
.
SKIN INJECTION
HAZARD
Liquids
can be injected into the body by high pressure airless spray or
leaks
– especially hose leaks.
Keep body clear of the nozzle. Never stop leaks with any part of the
body
. Drain all pressure before removing parts.A
ing of gun by always setting safety latch when not spraying.
Never spray without a tip guard.
In case of accidental skin injection, seek immediate
“Surgical T
Failure to follow this warning can result in amputation or serious injury
reatment”.
void accidental trigger
-
.
4 307-830
Setup
WARNING
T
o reduce the risk of serious bodily injury caused
by static sparking, fluid injection or over–pressuri
zation and rupture of the hose or gun, all hoses
must be electrically conductive, the gun must have
a tip guard, and each part must be rated for at least
2750 psi (190 bar
, 19 MPa)
Working Pressure.
CAUTION
T
o avoid damaging the pressure control, which may
result in poor equipment performance and compo
nent damage:
1.
Always use grounded, flexible spray hose (85) at
least 50 ft (15 m) long.
2.
Never use a wire braid hose as it is too rigid to
act as a pulsation dampener
3.
Never install any shutof
(15) and the main hose. See Fig. 1.
.
f device between the filter
WARNING
1. Connect the hoses and gun to the sprayer.
a 1/4 in. ID, 50 ft (15 m) long (minimum) main
hose (85). For more flexible gun movement, install
-
-
a 3/16 in. ID, 3 ft (0.9 m) hose (86) between the
main hose and the gun (87). Don’t use thread
sealant, and don’t install the spray tip yet!
2. Fill the packing nut/wet-cup (221)
Throat Seal Liquid (TSL), supplied.
3.
Check the electrical service.
a.
Electrical requirements: 120 V
15A (minimum).
b.
Use a grounded electrical outlet located at
least 20 ft (6 m) from the spray area.
c.
Do not remove the grounding prong of the
power supply cord, and do not use an
ungrounded adapter
d.
Extension cord specifications: 15A, 3 wires,
grounding type. Note that long lengths reduce
sprayer performance. A maximum extension
cord length of 200 ft (60 m) is recommended.
.
1/3 full with
AC, 60 Hz,
Use
FIRE AND EXPLOSION HAZARD
Proper electrical grounding is essential
to reduce the risk of fire or explosion
which can result in serious bodily injury
and property damage. See the warning
section
ARD
grounding instructions.
FIRE OR EXPLOSION HAZ
on page 2 for more detailed
-
4. Flush the pump
pump parts after factory testing. See
page 9.
5.
Prepare the paint.
the paint thoroughly
nylon mesh bag to remove particles that could clog
the filter
, if used, or the spray tip.
to remove the oil left in to protect
Flushing
Remove any paint skin. Stir
. Strain the paint through a fine
on
307-8305
Keep
1/3 full with TSL at all times
Never install any shutof
f device here
Setup
114
15b
221
Fig.
1
6 307-830
85
87
86
01744C
Use
this procedure to help you start and operate the
sprayer properly and safely
.
Startup
5. Check all fluid connections for leaks
the
tightening connections.
Pressure Relief Procedure
. Follow
on page 1
1 before
WARNING
INJECTION HAZARD
T
o reduce the risk of serious bodily
injury
, follow the
dure W
ing or repairing any part of the spray system.
NOTE:
See page 9.
NOTE:
1. Turn the pressure adjusting knob (A) fully
2. Put the intake tube (3) in the fluid container.
3.
Flush the sprayer if this is a first-time startup.
See Fig. 3 except where noted.
counterclockwise to minimum pressure.
Plug in the sprayer
arning
Pressure Relief Proce
on page 1
.
1 before check
6. Install the spray tip and tip guard.
trigger safety latch. Install the spray tip according
to the instructions supplied with it.
-
-
7. Adjust the spray pattern.
Increase the pressure slowly just until spray
a.
from the gun is completely atomized. Use the
lowest pressure needed to get the desired
results. This reduces overspray and fogging,
decreases tip wear and extends sprayer life.
b.
If more coverage is needed, use a larger tip
rather than increasing the pressure.
c. T
est the spray pattern. Adjust the spray tip
pattern according to the instructions supplied
with the gun or tip.
Trigger
safety latch shown engaged (SAFE)
T
rigger safety latch shown disengaged (OFF SAFE)
Engage the
CAUTION
Do not run the pump without fluid in it for more than
30 seconds to avoid damage to the displacement
pump packings.
WARNING
FIRE AND EXPLOSION HAZARD
T
o reduce the risk of static sparking and
splashing when flushing, always remove
the spray tip from the gun and hold a
metal part of the gun firmly to the side of grounded
metal pail.
4.
Prime the pump.
a. Open
b. Disengage
the
pressure drain valve (44). T
sprayer switch (105a). Slowly turn the pressure
adjusting knob (A) clockwise until the sprayer
starts.
When fluid comes from the
the trigger safety latch. See Fig. 2.
Holding a metal part of the gun firmly against a
grounded metal pail, trigger the gun until all air
is forced out of the system and the paint flows
freely from the gun.
urn on the
valve close it.
Fig. 2
105a
A
44
3
c.
Release the trigger and engage the trigger
safety latch.
Fig.
3
01745C
Maintenance
WARNING
INJECTION HAZARD
T
o reduce the risk of serious bodily
injury
, follow the
dure W
ing or repairing any part of the spray system.
arning
Pressure Relief Proce
on page 1
1 before check
Cleaning a Clogged Tip
WARNING
To
reduce the risk of serious bodily injury from from
fluid injection:
NEVER operate the spray gun with the tip guard
removed.
DO NOT hold your hand, body
the spray tip when cleaning or checking for a clog.
Always point the gun toward the ground or into a
pail.
, or a rag in front of
5. For very short shutoff periods,
tube in the paint, relieve pressure, and clean the
spray tip.
-
-
6. Flush the sprayer at the end of each work day
and fill it with mineral spirits to help prevent pump
corrosion and freezing. See page 9.
leave the suction
CAUTION
T
o prevent pump corrosion, and to reduce the
chance of fluid freezing in the pump or pressure
control in cold weather
type of paint in the sprayer when it is not in use.
Freezing can seriously damage the sprayer or result
in a loss of pressure or stalling.
7. Coil the hose and hang it on the hose rack
when storing it, even for overnight, to help protect
the hose from kinking, abrasion, coupling damage,
etc.
, never leave water or any
DO NOT try to “blow back” paint; this is NOT an air
spray sprayer
1.
Clean the front of the tip frequently
Pressure Relief Procedure
2.
Follow the cleaning instructions given in your
separate gun or spray tip instruction manual.
.
. Follow the
, page 1
1, first.
Shutdown and Care
1. Keep the packing nut/wet-cup (221) 1/3 full of
TSL
(Throat Seal Liquid, supplied) at all times to
help prevent fluid buildup on the piston rod and
premature wear of packings. Follow the
Relief Procedure
2. Keep the packing nut/wet-cup just tight
enough to stop leakage.
ing causes binding and excessive packing wear
Follow the
Then use a round punch or brass rod and light
hammer to adjust the nut.
Pressure Relief Procedure
, page 1
1, before adding TSL.
See Fig. 5. Overtighten
Pressure
, page 1
1.
A
Fig. 4
15
-
.
221
7460A
3. Clean the fluid filter (15) often
the sprayer is stored. Follow the
Procedure
4. Lubricate the bearing housing (A)
100 hours of operation
Relief Procedure
cover
non-detergent oil. See Fig. 4.
, page 1
. Fill the bearing housing cavity with SAE 10
1, before cleaning the filter
. Follow the
, page 11. Remove the front
, and whenever
Pressure Relief
after every
Pressure
.
Fig. 5
01748C
Flushing
y
ypy
NOTE:
Several flushes may be required to clean the system and prepare it for the next fluid or storage. Use this
chart to determine the required flushes and use the procedure below for flushing.
*Use this category for flushing a brand new sprayer and flushing after storage.
System
fluid in it:
*Oil-based solvent
or paint
Oil-based solvent or
paint
Oil-based solvent or
paint
W
based paint
W
based paint
W
based paint
has this
ater or water-
ater or water-
ater or water-
Next fluid to be
sprayed:
Oil-based paint –
new color
W
ater-based paint
Prepare for storage
W
ater–based
paint – new color
Oil-based paint
Prepare for storage
Flushing order
Flush 1Flush 2Flush 3
Mineral spirits
Mineral spirits
Mineral spirits
W
arm soapy
water
W
arm soapy
water
W
arm soapy
water
nonenone
W
arm soapy
water
nonenone
Clean water
Clean water
Clean water
4.
Remove the spray tip from the gun.
Clean water
none
Mineral spirits
Mineral spirits
WARNING
5.
INJECTION
T
o reduce the risk of serious bodily
injury
, follow the
dure W
HAZARD
arning
Pressure Relief Proce
on page 1
1 before check
ing or repairing any part of the spray system.
CAUTION
-
-
Put the suction tube into a grounded metal pail
with 1/2 gallon of compatible solvent.
6.
Start the sprayer
the sprayer as you start to flush, trigger the gun
into another container until the next fluid appears,
then trigger the gun back into the fluid you are
pumping. Circulate the flushing fluid a couple of
minutes to thoroughly clean the system.
Before you spray or store
sprayer:
Prime with oil
Prime with water
Relieve pressure
Leave drain valve open
Prime with water
Prime with oil
Relieve pressure
Leave drain valve open
. See page 7. T
o save the fluid in
NEVER allow water or water–base material to freeze
in the pressure control. Doing so prevents the
sprayer from being started and causes serious
damage to the pressure control. Pump the water out
with mineral spirits.
WARNING
FIRE AND EXPLOSION HAZARD
T
o reduce the risk of static sparking and
splashing when flushing, always remove
the spray tip from the gun and hold a
metal part of the gun firmly to the side of grounded
metal pail.
1.
Relieve pressure. Engage the trigger safety latch.
2.
Remove the filter bowl (B) and screen (C). Rein
stall the bowl and support (D) only
screen separately
urn the pressure adjusting knob (A) fully counter
3. T
.
clockwise to the minimum pressure.
. Clean the
7.
Raise the suction tube and trigger the gun to force
solvent from the hose. Do not run the pump dry for
more than 30 seconds to avoid damaging the
pump packings! Relieve pressure.
8.
Remove the suction tube and clean separately
9.
Install the filter screen. Hand tighten the bowl.
.
A
C
B
D
-
-
Fig. 6
44
01749A
307-8309
Application
Hold
the gun perpendicular to the surface. Keep the
gun at an even 12 to 14 in. (300 to 356 mm) from the
surface you are spraying. See Fig. 7.
Begin moving the gun horizontally at a steady rate.
Start the spray stroke of
the trigger as the gun is moving. Then, while the gun is
still moving, and as you approach the other edge of the
surface, release the trigger
cess paint buildup at the end of each stroke.
f the target surface and pull
. This method avoids ex
RIGHT
-
Methods
The
best way to control the rate of coverage is with the
gun tip size.
larger tip orifice applies more paint. The width of the
pattern depends on the fan pattern of the tip you
choose.
Do not try to increase coverage by increasing the fluid
pressure! Use the lowest pressure needed for good
results. This prolongs the life of your sprayer and
reduces paint lost by overspray
For interior corners aim the gun toward the center of
the corner to be sprayed. By dividing the spray pattern
this way
See Fig. 9.
A small tip orifice applies less paint. A
.
, the edges on both sides are sprayed evenly
.
Fig. 7
Move the gun at a speed that provides a full, wet
coating to be applied without runs or sags. Lap each
stroke 50% over the previous stroke to produce a
uniform paint thickness. Spray in a uniform pattern
from right to left and then left to right for a professional
finish. See Fig. 8.
OVERLAP EACH STROKE 50%
Fig. 8
10 307-830
WRONG
0072
0672
Fig. 9
If there is a wind, angle the spray pattern into the wind
to minimize drifting. Paint from the ground to the roof.
Shrubs. T
them with a dropcloth as the painter approaches the
area. Remove the dropcloth as soon as the area is
painted to prevent damage.
Concrete walks.
cover them with a canvas dropcloth to avoid slipping.
Otherwise a plastic cloth can be used.
Electrical outlets and lamps. Protect electrical outlets
with masking tape. Cover lamps with plastic bags
secured with masking tape.
Nearby objects.
surface to be sprayed. If there is a nearby home, make
a protective barrier by hanging plastic drop cloths
between two long poles.
ie back shrubs with rope and stakes. Cover
If the walkways will be walked on,
Move portable objects upwind of the
0673
Troubleshooting
put, and pump is not stroking
pg,
WARNING
Pressure Relief Procedure
T
o reduce the risk of serious bodily injury always
follow this procedure before checking or repairing the
sprayer.
1.
Engage the gun safety latch.
2. T
urn the ON/OFF switch to OFF
.
5.
Engage the gun safety latch.
6.
Open the pressure drain valve. Leave the valve
open until you are ready to spray again.
If you suspect that the spray tip or hose is completely
3.
Unplug the power supply cord.
clogged, or that pressure has not been fully relieved
after following the steps above,
4.
Disengage the gun safety latch. Hold a metal part
of the gun firmly to the side of a grounded metal
pail,
and trigger the gun to relieve pressure.
Check everything in the chart before disassembling the sprayer
PROBLEMCAUSESOLUTION
Electric motor won’t run
Power cord or extension cord un
plugged or damaged, or building cir
cuit breaker or fuse has tripped
Motor overload switch1 has opened
Pressure setting too low
loosen the tip guard retaining nut or hose end cou
pling to relieve pressure gradually
completely
.
. Now clear the tip or hose.
-
Check, reset or replace.
-
Unplug sprayer
motor to cool, decrease pressure.
Increase pressure.
VER
Y SLOWL
, then loosen
, relieve pressure, allow
Y
-
Electric motor stops while
spraying
Electric motor runs, but low
paint output or no paint out
put, and pump is not stroking
See the
enough paint pressure”, on
page 12, also.
PROBLEM, “
-
Not
”
Pressure control frozen or damaged
by over–pressurization
Power cord or extension cord un
plugged, or damaged, or building
circuit or fuse is blown
Motor overload switch1 has opened
Pressure setting too low
Spray tip plugged
W
rong type extension cord
Piston ball check not seating
Piston packings worn or damaged
Intake valve ball check not seating
Pump is frozen
Pressure control frozen or damaged
by overpressurization
Drive assembly damaged
3
-
T
ry to thaw2, or replace pressure control.
Check, reset or replace.
Unplug sprayer
motor to cool, clear motor air passages of
dirt and overspray; decrease pressure.
Increase pressure.
Remove and clean.
Use maximum 200 ft (61 m), 3 wire,
12 gauge, grounded extension cord.
Service pump. See page 14.
Replace piston. See page 14.
Service pump. See page 14.
2
Thaw
T
ry to thaw2, or replace pressure control.
Replace drive housing. See page 16.
, relieve pressure, allow
Pump worn or damaged
Sprayer is not primed.Follow the procedure on page 7 again.
Replace pump. See page 14.
307-83011
Troubleshooting
PROBLEMCAUSESOLUTION
Paint leaks into wet-cup
Excessive surging from spray
gun
Not enough paint pressure
T
ails or fingers in spray
pattern
Packing nut is loose
Throat packings are worn or
damaged
Spray tip or fluid filter is plugged
Spray tip too big or worn
Paint too viscous
W
rong type hose
Pressure setting too low
Spray tip too big or wornChange the spray tip.
Pressure control frozen or damaged
by overpressurization
Pump worn or damaged
Pressure setting too low
Fluid outlet filter (if used) is dirty or
clogged
3
T
ighten. See page 8.
Replace packings. See page 14.
Disassemble and clean.
Change spray tip.
Thin the paint.
Use minimum 50 ft (15 m), grounded, flex
ible hose (wire braid hose is
unacceptable).
Increase the pressure.
T
ry to thaw2, or replace pressure control.
Replace pump. See page 14.
Increase pressure.
Clean filter
with it.
. See instructions supplied
-
Spray tip too big or worn
Fluid supply is low or empty
Paint too viscous
W
rong type hose
Paint runs or sags
Spitting from gunAir in fluid pump or hoseCheck for loose connections at pump
Static sparking from gun
1
The electric motor has an over-temperature switch
which automatically resets upon cooling. If it opens
the
electric motor shuts itself of
cord
and let
use the lowest pressure setting needed when spraying.
Prevent overspray from restricting the motor air passages;
2
Freezing
paint or flushing water with mineral spirits, and usually
causes
the sprayer cool for 30 to 60 minutes. Always
check and clean often.
results from failure to replace the
permanent damage to the pressure control.
Spray tip to big or worn
Spray tip is partially clogged
Fluid supply is low or empty
Spray or work being sprayed is not
properly grounded
and
f, unplug the power supply
water-base
3
Over-pressurization
ft
(15
spray
pump
hose to the pressure drain valve, or (5) from using a
clogged
Change spray tip.
Refill and prime pump. Check fluid supply
often to prevent running pump dry
Thin paint.
Use minimum 50 ft (15 m), grounded, flex
ible hose (wire braid hose is
unacceptable).
Change spray tip.
intake and tighten. Then prime pump.
Clear tip. See page 8.
Refill and prime pump. Check fluid supply
often to prevent running pump dry
Correct problem before continuing. Follow
the warning section,
SION HAZARD
results from (1) using less than 50
m) of flexible spray
hose, (3) from adding
outlet and the spray gun, (4) from
or incorrectly assembled filter
hose, (2) from using a wire braid
FIRE OR EXPLO
on page 2.
a shutof
f device between the
attaching a spray
, if used.
.
-
.
-
12 307-830
Motor
Brush Replacement
NOTE: Replace the brushes when they have worn to
less than 10 mm. See Fig. 12. Always replace both
brushes
and
NOTE: Replacement brushes may last only half as long
as
brushes by operating the sprayer with no load (remove
the
Fig. 10
at the same time. A Brush Repair Kit, 220–853,
spring clip, 1
the original ones. T
pump connecting rod pin) for at least one hour
10–816, are available.
o maximum brush life, break in new
01745C
.
A
9. T
est the brushes. Remove the connecting rod pin
(50). See 15, page 14. With the sprayer of
the pressure control knob fully counterclockwise to
minimum pressure. Plug in the sprayer
sprayer on. Slowly increase the pressure until the
motor is at full speed. Inspect the brush and
commutator contact area for excessive arcing.
Arcs should not “trail” or circle around the commu
tator surface.
. T
urn the
f, turn
CAUTION
Do not touch the brushes, leads, springs or brush
holders while the sprayer is plugged in, to reduce the
risk of electric shock and serious bodily injury
10.
Install the brush inspection plates, gaskets and
covers.
Break in the brushes. Operate the sprayer for at
11.
least one hour with no load. Then reinstall the
connecting rod pin (50).
B
.
2
-
WARNING
INJECTION HAZARD
T
o reduce the risk of serious bodily
injury
, follow the
dure W
ing or repairing any part of the spray system.
1.
Remove both inspection covers (A). See Fig. 10.
2.
Push in the spring clip (E) to unhook it, and then
pull it out. See Fig. 1
Loosen
3.
(E) away
Remove the brush (C) and spring (B). See Fig. 12.
4.
Inspect the commutator for excessive pitting,
burning or gouging. A black color on the commuta
tor is normal. Have the commutator resurfaced by
a qualified motor repair shop if the brushes seem
to wear too fast.
5.
Install the new brush (C) so its lead is in the long
slot (H) of the holder
nal (E) under the terminal screw washer
sure the motor lead (G) is still connected the at the
screw. T
the terminal screw (F). Pull the brush lead
, leaving the motor lead (G) in place.
ighten the screw (F). See Fig. 12.
arning
Pressure Relief Proce
on page 1
1.
. See Fig. 13. Slide the termi
1 before check
. Make
Order
1
2
-
-
-
-
Fig. 11
1
Fig.
1
part
no. 1
10–816
Hook of spring clip
C
10
mm minimum
12
Spring
must
coil in this
direction
C
1
D
01227
B
1
F
G
H
B
D
E
01227
1
C
D
6.
Place the spring (B) on the brush as shown in Fig.
13. The spring must coil as shown.
7.
Push in and hook the spring clip (D). See Fig. 13.
8.
Repeat for the other side.
Fig.
13
307-83013
Torque
80 ft–lb (107 N.m)
Fig.
14
to
52
76
75
74
Displacement
Pump
Repairing the pump
See
manual 307–806 for pump repair instructions.
A
Reinstalling the pump See
1.
Rotate the crankshaft (A) so the connecting rod is
in its lowest position.
2.
49
223
51
50
6
30
32
4
222
3
01746B
The pump piston rod (223) should protrude about
1 in. (25 mm) above the pump cylinder
Screw the pump into the bearing housing (51) until
3.
its pin hole is aligned with the connecting rod (52)
pin hole. Insert the pin (50). Position the spring
(49) so it covers the ends of the pin. See Fig. 15.
WARNING
Be sure the retaining spring (49) is firmly and completely
in the groove of the connecting rod to
the
pin (50) from working loose due to vibration.
If
the pin works loose, it or other parts could break of
due to the force of the pumping action, resulting in
serious
4.
bodily injury
Adjust the pump so the cylinder’s top threads are
flush with the face (B) of the bearing housing and
the outlet nipple (32) is straight back. See Fig. 15.
, pump or property damage.
Fig. 14 and 15.
.
prevent
f
WARNING
INJECTION
T
o reduce the risk of serious bodily
injury
, follow the
dure W
ing or repairing any part of the spray system.
Removing the pump See
1.
Flush the sprayer
2.
Remove the clips (74,76) and drain hose (75).
3.
Hold the intake valve (222) steady with a wrench
and unscrew the suction tube (3).
4.
Use a screwdriver to push the retaining spring (49)
up, and then push out the pin (50).
5.
Loosen the locknut (6). Unscrew the pump (4).
HAZARD
Pressure Relief Proce
arning
on page 1
Fig. 14.
. Relieve pressure.
1 before check
5. T
orque the locknut (6) to 80 ft-lb (107 N.m).
6.
Reassemble the remaining parts, in the reverse
order of removal.
-
50
49
52
51
B
32
Fig. 15
01751A
Connecting
Rod and Bearing Housing
WARNING
INJECTION
T
o reduce the risk of serious bodily
injury
, follow the
dure W
ing or repairing any part of the spray system.
HAZARD
arning
Pressure Relief Proce
on page 1
1 before check
10.
Align the connecting rod (52) with the crank (C)
and push the bearing housing (51) onto the drive
housing (14).
11.
-
-
Assemble the remaining parts. Refer to page 14 to
reinstall the pump.
NOTE:
1.
2.
3.
4.
5.
6.
7.
Refer to Fig. 16.
Remove the pail hanger (7).
Remove the front cover (12).
Remove the pump as described on page 14.
Remove the four screws (9) and lockwashers (10).
Pull the bearing housing (51) and connecting rod
assembly (52) of
Clean and inspect the crankshaft (C). Wipe it clean
with a rag (don’t use solvent). If the crankshaft is
badly worn, replace the drive assembly (14). See
page 21.
Clean and inspect the bearing housing (51) and
connecting rod (52), including the needle bearing
(A). Replace both parts if either is worn or dam
aged. See Detail A.
Clean the mating surfaces of the bearing and drive
housings.
f the crankshaft (C).
Detail A
A
B
14
C
52
51
10
9
12
13
-
5
49
CAUTION
T
o extend the service life of the connecting rod
bearing, lubricate it properly
operation, or whenever servicing the pump (whichev
er comes first), fill the cavity (B) in the connecting
rod with SAE non-detergent motor oil. See Detail A.
8.
Coat the surfaces of the connecting rod and bear
ing with SAE non-detergent motor oil. Liberally
pack the needle bearing (A) with industrial grade,
heavy duty
grease. See Detail A.
9.
Assemble the connecting rod (52) and bearing
housing (51).
, extreme pressure, lithium soap
. After every 100 hours of
50
7
-
-
Fig. 16
6
30
32
01750B
Drive
WARNING
INJECTION
T
o reduce the risk of serious bodily
injury
, follow the
dure W
ing or repairing any part of the spray system.
NOTE:
Refer to Fig. 17 for this procedure.
HAZARD
arning
Pressure Relief Proce
on page 1
1 before check
Housing
5.
Lightly tap the lower rear of the drive housing (14)
with a plastic mallet to loosen it from the motor
(16). Pull the drive housing (14) of
-
DO NOT drop the gear cluster (56) when removing
the drive housing (14). The gear may stay engaged
in the motor or drive housing.
CAUTION
f the motor
.
NOTE:
get the crank (C) in its lowest position. T
manually
screwdriver.
1.
2.
3.
4.
Stop the sprayer at the bottom of its stroke to
o lower it
, carefully rotate the blades of the fan with a
Remove the front cover (12).
Remove the four screws (9). Lightly tap the lower
rear of the bearing housing (51) with a plastic
mallet to loosen it from the drive housing (14). Pull
the bearing housing/connecting rod/pump
assembly of
Remove the screws (42) from the recess of the
drive housing (14). Remove the screws (72,53)
from the rear of the motor’
Remove the screws (53) from the rear of the
motor’
f the drive housing (14).
s front end bell.
s front end bell.
14
14c
DO NOT lose the thrust balls (14c, 16b), or allow
them to fall between the gears. The balls, heavily
covered with grease, usually stay in the shaft
recesses, but could become dislodged. If caught
between gears and not removed, the balls will seri
ously damage the drive housing. If they are not in
place, the bearings will wear prematurely
6. Liberally apply bearing grease to the gear cluster
(56).
Be sure the thrusts balls (14c,16b) are in place.
7. Place
8.
16b
56
14b
the dark washer (14b) and then the light one
(14a) on the shaft protruding from the big gear in
the drive housing. Align the gears and push the
new drive housing straight onto the motor and its
locating pins.
Continue reassembling the sprayer
53
54
16
14a
.
-
.
12
13
Fig. 17
C
A
51
10
9
01752C
Motor
WARNING
INJECTION HAZARD
T
o reduce the risk of serious bodily
injury
, follow the
dure W
ing or repairing any part of the spray system.
NOTE:
1.
2.
3.
4.
Refer to Fig. 18.
Remove the four screws (13) and front cover (12).
Disconnect the hose (30) and drain hose (80).
Remove the pressure control cover (21). Discon
nect the four motor leads.
Unscrew the connector nut (103) at the pressure
control. Swing the conduit (27) away from the
connector.
Remove the conduit seal (18) from around the
wires in the pressure control. Pull the motor leads
through the elbow
arning
, one at a time.
Pressure Relief Proce
on page 1
1 before check
CAUTION
Always pull the motor leads one at a time to avoid
loosening the terminals.
5.
Loosen the nut of the connector (25) at the motor
Pull the conduit (27) away from the motor and then
pull the wires through the conduit, one at a time.
6.
Remove the connector (25) elbow from the motor
and then pull the wires through it one at a time.
7.
Remove the screws (42) from the recess of the
drive housing (14). Remove the screws (72) and
washers (54) from the rear of the motor’s front end
bell.
CAUTION
DO NOT drop the gear cluster (56) when removing
the drive housing (14). The gear may stay engaged
-
-
-
.
,
in the motor or drive housing.
DO NOT lose the thrust balls (14c, 16b), or allow
them to fall between the gears. The balls, heavily
covered with grease, usually stay in the shaft
recesses, but could become dislodged. If caught
between gears and not removed, the balls will seri
ously damage the drive housing. If they are not in
place, the bearings will wear prematurely
10.
While supporting the motor to keep the sprayer
from tipping, remove the capscrews (35) which
hold the motor to the cart. Lift the motor of
cart.
11.
Mount the new motor to the cart.
12.
Liberally apply bearing grease to the gear cluster
(56). Be sure the thrusts balls (14c,16b) are in
place.
13.
Place the dark washer (14b) and then the light one
(14a) on the shaft protruding from the big gear in
the drive housing. Align the gears and push the
new drive housing straight onto the motor and its
locating pins.
14.
Continue reassembling the sprayer
NOTE and W
NOTE:
feeding wires through it.
Use a turning motion on the conduit when
ARNING, below
.
.
f the
. Follow the
-
WARNING
8.
Remove the screws (53) and washers (54) from
the rear of the motor’s front end bell.
9.
Lightly tap the lower rear of the drive housing (14)
with a plastic mallet to loosen the assembly from
the motor (16). Pull the drive housing assembly of
the motor
.
All wires connected to the over-pressure switch (C)
and the pressure switch (D) must be insulated at
the terminals to reduce the risk of electric shock if
someone touches these parts when the power is
on. When installing the new pressure control, be
f
sure these terminals are covered with shrink tubing
or electrical tape.
307-83017
Motor
Partial W
iring
Diagram
C
D
2
2
All
wires to the over-pressure switch (C) and
1
the
pressure switch (D) must be insulated
with shrink tubing or electrical tape.
2
Motor leads
Conduit
3
4
seal (18) shown installed in con
duit
connector (103)
See Detail above
103
14
Conduit Seal Detail
1
3
18
103
53
54
16
-
16b
56
14b
14c
14a
35
25
21
70
9
12
13
Fig. 18
10
4
103
34
33
27
30
4
80
01754C
Pressure
WARNING
INJECTION
T
o reduce the risk of serious bodily
injury
, follow the
dure W
ing or repairing any part of the spray system.
HAZARD
Pressure Relief Proce
arning
on page 1
CAUTION
1 before check
Control
8.
Remove the mounting screws (35) and pull the
pressure control away from the sprayer
See Fig. 19.
9.
Remove the mounting plate (1
-
-
the new pressure control. See Fig. 19.
10.
Reassemble the new pressure control in the
reverse order of disassembly
11.
Adjust the pressure control.
1) and secure it to
.
See page 21.
.
Do not remove the nipple (105e) or elbow (105d)
from the pressure control unless they are damaged.
T
wisting or jarring the these fittings could alter the
factory setting of the control or permanently damage
it. If they must be removed, use extreme care. Hold
the corresponding hex (B) steady with a wrench and
then remove the part.
WARNING
All wires connected to the over–pressure switch (C)
and the pressure switch (D) must be insulated at
the terminals to reduce the risk of electric shock if
someone touches these parts when the power is
on. When installing the new pressure control, be
sure the these terminals are covered with shrink
tubing or electrical tape. See Fig. 20.
1.
Disconnect the spray hose. Hold the nut (B)
steady with a wrench and unscrew the filter (15).
2.
Hold the elbow (105d) steady with a wrench and
disconnect the hose (30). Disconnect the drain
hose (80).
CAUTION
Failure to observe the following precautions may
cause poor performance or excessive pressure and
permanent damage to the pressure control.
Always use at least 50 ft (15.2 m) of grounded,
flexible spray hose.
Never use a wire braid spray hose.
Never add any type of shutof
pump outlet and the spray gun.
Check the filter (if used) for clogging or incorrect
assembly if tip clogging frequency increases.
Never allow flushing water or water base paint to
freeze in the system.
f device between the
11
35
23
21
3.
Remove the pressure control cover (21).
4.
Disconnect the three power supply cord leads. See
Fig. 20.
5.
Disconnect the four motor leads. See Fig. 20.
6.
Unscrew the conduit nut (103). See Fig. 19. Pull
the pressure control away from the conduit while
carefully guiding the wires through the connector
7.
Loosen the knurled part of the strain relief bushing
(101) and unscrew the fitting from the pressure
control. See Fig. 19.
34
33
B
15
105e
105d
.
80
30
44
Fig. 19
101
70
103
01755A
Pressure
Control
C
D
All
wires to the over-pressure
1
switch (C) and the pressure
switch (D) must be insulated with
shrink tubing or electrical tape.
2
Motor leads
3
Power supply leads
Fig.
20
1
68
18
RED
WHITE
2
130
3
102
101
01314
Pressure
Control Adjustment
WARNING
USE
EXTREME CAUTION WHEN PERFORMING
THIS ADJUSTMENT PROCEDURE
risk of a fluid injection injury or other serious bodily
injury
, which can result from component rupture,
electric shock, fire, explosion or moving parts.
This procedure sets the sprayer to 2750 psi (190 bar)
MAXIMUM WORKING PRESSURE.
Perform this procedure whenever the microswitch or
pressure control assembly is reinstalled or replaced.
Improper calibration can cause the sprayer to over
pressurize, resulting in component rupture, fire or
explosion. It may also prevent the sprayer from
obtaining the maximum working pressure, resulting in
poor sprayer performance.
to reduce the
-
NEVER attempt to increase the sprayer’s maximum
working pressure by performing these adjustments in
any other way
higher pressures may result in component rupture,
fire or explosion. T
er
, the sprayer pressure must be
creased above the normal working pressure.
Use a
new
least 3000 psi (210 bar) MAXIMUM WORKING
PRESSURE, when performing this procedure. A
used, under–rated hose could develop a high pres
sure leak or rupture.
Remove the old spray hose. Install the new hard
ware and hose as shown in Fig. 21. On the other
end of the hose install the needle valve.
Procedure continued on page 22
arning
Pressure Relief Proce
on page 1
1 before check
-
-
-
Fig. 21
D
C
B
A
44
01315
307-83021
Fig.
D
22
Pressure
E
A
C
Control Adjustment
6.
If the pressure is lower than 2750 psi (190 bar):
Unplug the sprayer and relieve pressure. Insert the
wrench through the hole (C) and tighten the adjust
ment nut (B) 1/8 turn or less. Repeat steps 5 and
6.
+
If the pressure is higher than 2750 psi (190 bar):
Unplug the sprayer and relieve pressure. Insert the
wrench through the hole (C) and loosen the pres
sure adjustment nut (B) 1/8 turn or less. Repeat
steps 5 and 6. Repeat this procedure until the
proper stall pressure is obtained.
7.
Now check to see at what pressure the sprayer
starts to run again after it stalls. Plug in the spray
er
, turn it on, close the needle valve, and set the
pressure at maximum. Allow the sprayer to run
until it stalls.
NOTE:
the easier it is to note the exact stall pressure. Closing
the needle valve quickly causes the pressure to rise
too fast which gives a false reading.
In Step 8, the slower the pressure is raised,
TIGHTEN
68
B
0750
-
-
-
NOTE:
procedure.
2.
3.
4.
5.
Refer to Fig. 22 for the remainder of this
Remove the plug (68).
Open the needle valve slightly
adjusting knob (A) to the minimum setting.
Plug in the sprayer and turn the switch (E) ON.
Increase the pressure just enough to start the
sprayer
nate all air from the system.
Open the needle valve a just enough to allow the
pump to run continuously
adjusting knob to maximum. V
close the needle valve. Observe the pressure at
which the pump stalls, which should be approxi
mately 2750 psi (190 bar).
. Fully prime the hose, being sure to elimi
. T
urn the pressure
, and turn the pressure
ery slowly start to
8.
Open the needle valve very slowly while observing
the pressure gauge. Check to see if the pressure
drops to approximately 2350 psi (161 bar) before
the sprayer starts again.
9.
If the pressure is not approximately 2350 psi (161
bar
): Shut of
relieve pressure. T
just one notch and repeat Steps 5 and 6. Check
-
-
the pressure drop again, and repeat if necessary
NOTE:
the stall pressure (steps 5 and 6) to be sure the it has
not changed.
10.
If you adjust the dif
Relieve pressure. Flush the water out with mineral
spirits. Relieve pressure. Install the plug (68).
Remove the test equipment.
f and unplug the sprayer
urn the dif
ferential wheel (D)
ferential wheel, recheck
, but do not
.
Parts
Part
No. 220–858
Pressure Control Assembly
Includes replaceable items
listed below
105f
– Pressure Control
104
105c
105a
105b
121
114
105
115
105d
105f
16d
106,107
68
18
103
See
parts list on page 25
RED
WHITE
16c
103
111
120,107,119
113,110,112
118
102
101
Ref
No.Part No.DescriptionQty
101108–295STRAIN RELIEF BUSHING1
102220–945POWER SUPPLY CORD, 8.5’1
103108–46045 CONDUIT CONNECTOR1
104 183–466
105220–905PRESSURE CONTROL BOX, bare
16a 185–954
16b100–069
16c107–263.TERMINAL2
16d102–799.TERMINAL2
18107–447CONDUIT SEAL (see page 23)1
20106–078SCREW
21185–000PRESSURE CONTROL COVER1
22183–371
23220–858PRESSURE CONTROL
24177–762
25108–46045CONDUIT CONNECTOR1
T ASSEMBL
Includes items 1a – 1g
ASHER, plain, 5/8”
, strainer
See manual 307–806 for parts
, hex
ASHER, spring, 3/8”
, ovh, 8–32 x 3/8”
Includes items 14a–14d
ASHER, bronze–colored
.BALL, 1/4” sst
FLUID FIL
Includes items 15a and 15b
See manual 307–273 for parts
.NIPPLE, 1/4 npsm x 1/4 npt
Includes items 16a–16d
.LABEL, Danger
.BALL, sst, 1/4”
, ovh, 10–24 x 3/8”
LABEL, identification
See page 23 for parts
HOSE, nylon, 1/4” ID, cpld 1/4
nspm (fbe), 29” (740 mm) long,
spring guards both ends
NIPPLE, 1/4 npsm x 1/4 npt
, hex, 5/16–18
ASHER, spring, 3/8”
, hex hd, 5/16–18 x 7/8”
LABEL, identification
AG, caution
WHEEL, semi–pneumatic
PIN, hdless, 5/16” dia x 1”
, sch, 1/4–20 x 1”
PLUG (See page 23)
, large
, small
LABEL, Danger
LABEL, Danger
HOSE, grounded,nylon, 1/4” ID,
cpld 1/4 npsm(f), 50 ft (15 m)
spring guards both ends
HOSE, grounded, nylon, 3/16” ID,
cpld 1/4 npsm(f), 3 ft (0.9 m) long,
spring guards both ends
See manual 308–235 for parts
Includes RAC IV DripLess T
and 517 size SwitchT
arning labels, tags and cards
ip1
specify
9.5 in.
1
1
7
7
7
1
1
2
1
6
1
1
1
1
1
1
1
ip Guard
Notes
Technical
Electric
Motor
Electric
Cord
Power
Requirements
Maximum Working Pressure
Maximum Delivery
Cycles/Gallon
Tip Size
contents in manual 307–806. Repair instructions are
included with the kit.
Motor
Brush Replacement Kit, 220–853
See
procedure on page 16.
DANGER
The
English language DANGER label shown on page 4
is also on your sprayer
read English, order one of the following labels to apply to
your sprayer
ment of these labels for good visibility
free of charge, by calling:1–800–328–021
warrants all equipment listed in this manual which is manufactured by Graco and bearing its name to be free from defects in
material
any
replace
operated
This
faulty installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or
substitution
Graco
installation,
This
verification
equipment
in
transportation.
Graco’s
remedy (including, but not limited to, incidental or consequential damages for lost
other incidental or consequential loss) shall be available. Any action for breach of warranty must be brought within two
date
GRACO
A PARTICULAR PURPOSE IN CONNECTION WITH ACCESSORIES, EQUIPMENT
NOT MANUFACTURED BY GRACO. These items sold, but not manufactured by Graco (such as electric motors, gas engines,
switches,
in
In
hereunder,
breach
and workmanship on the date of sale by an authorized Graco distributor to the original purchaser for use. With the exception
special extended or limited warranty published by Graco, Graco will,
any part of the equipment determined by Graco to be defective. This warranty applies only when the
and maintained in accordance with Graco’
warranty does not cover
of non-Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility of
equipment with structures, accessories, equipment or materials not supplied by Graco, or the
operation or maintenance or structures, accessories, equipment or materials not supplied by Graco.
warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for
of the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The
will be returned to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect
material or
of sale.
making any claim for breach of these warranties.
no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment
workmanship, repairs will be made at a reasonable charge, which charges may include the costs of parts, labor
sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above.
MAKES NO W
hose, etc.), are subject to the warranty
or the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract,
of warranty
, the negligence of Graco, or otherwise.
, and Graco shall not be liable
ARRANTY
, AND DISCLAIMS ALL
s written recommendations.
, if any
W
arranty
for a period of twelve months from the date of sale, repair or
for general wear and tear
IMPLIED W
, of their manufacturer
ARRANTIES OF MERCHANT
of
equipment is installed,
, or any malfunction, damage or wear caused by
improper design, manufacture,
, and
The buyer agrees that no other
profits,
lost sales, injury to person or property
(2)
ABILITY AND FITNESS FOR
, MA
TERIALS OR COMPONENTS SOLD BUT
. Graco will provide purchaser with reasonable assistance
, or any
years of the
FOR
GRACO CANADA CUST
The
parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings
entered into, given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties
reconnaissent
judiciaires
avoir convenu que la rédaction du présente document sera en Anglais,
exécutés, donnés ou intentés à la suite de ou en rapport, directement ou indirectement, avec les procédures concernées.
OMERS
ainsi que tous documents, avis et procédures
ADDITIONAL WARRANTY COVERAGE
Graco does provide extended warranty and wear warranty for products described in the “Graco Contractor Equipment Warranty
Program”.
All
written and visual data contained in this document reflects the latest product information available at the time of publication.
Graco reserves the right to make changes at any time without notice.
Foreign Offices:
Sales Offices:
Belgium, Canada, England, Korea, France, Germany
GRACO INC.P.O. BOX 1441
Minneapolis, Detroit, Los Angeles
MINNEAPOLIS, MN
, Hong Kong, Japan
55440–1441
http://www.graco.com
PRINTED
IN U.S.A. 307–830 April 1987, Revised December 1997
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