WARNING Alerts user to avoid or correct conditions
which
could cause serious bodily injury
.
CAUTION Alerts user to avoid or correct conditions
which
could damage or destroy the equipment.
NOTE
Gives additional explanation or helpful hints.
be
-
WARNING
Be sure all operators of this equipment read, understand,
and follow the warnings and instructions in this manual!
GENERAL
Use extreme care not to splash paint, contaminated
flushing
water or solvent
eyewear.
Be sure the area in which you are working is extremely
well-ventilated,
to avoid a buildup of harmful paint
To reduce the risk of electric shock, do not expose the
system
operate
to rain.
the pump with the pump base cover removed.
Always store the system indoors. Do not
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
4 of this manual.
EXTENSION
THIS IS NOT AN AIRLESS GUN EXTENSION (for example,
pole gun).
or
roller frame, or to use parts which are
use
with this system.
Improper
use of the extension, roller frame, hose or roller
Do not attempt to modify the extension
valve can result in component rupture or explosion and
cause
serious bodily injury
A
VOID POWER LINES
Avoid contacting any power lines with the extension.
Contact
bodily
with power lines could cause extremely serious
injury
, including burns or electrocution.
307–760
SAFETY
into your eyes. W
ear protective
grounding instructions on
MISUSE HAZARD
not designed for
.
fumes.
EQUIPMENT MISUSE HAZARD
This
system is designed for be used at
Maximum Working Pressure.
17.5 bar (250 psi)
Use only components
and accessories which are designed for use with the
PT2000
System.
Any misuse of this equipment, such as modifying parts,
using incompatible paint or solvent, or using worn or
damaged
result in serious bodily injury
erty
Never
could
parts, can cause the equipment
, fire
or
to rupture and
explosion, and prop
damage.
alter or modify any part of this equipment; doing
cause it to overpressurize or malfunction.
so
Check all parts of the system regularly and repair or replace
any worn or damaged parts immediately
HAZARD OF USING FLUIDS CONT
HALOGENA
TED HYDROCARBONS
.
AINING
Never use 1, 1, 1-trichloroethane, methylene chloride,
other halogenated hydrocarbon solvents or fluids containing
such solvents in this equipment.
Such use could
result in a serious chemical reaction, with the possibility
of
explosion, which could cause death, serious bodily in
jury
and/or substantial property damage.
Consult
used
your fluid suppliers to ensure that the fluids being
are compatible with aluminum and zinc parts.
-
-
PT2000 PRESSURE ROLLER SYSTEM DESCRIPTION
POWER
SUPPL
Add
plug according to
local code
SPRING GUARD
MUST BE A
THIS END
Y CORD
T
SUCTION
PRIMING TUBE
INLET V
ON/OFF
SWITCH
TUBE
ALVE
MOTOR
PRIMING V
AINT STRAINER
P
7.6 M (25 FT) HOSE
ALVE
ROLLER V
Fig
ALVE
1
Motor
The
motor drives the connecting rod which
moves the diaphragm.
Pressure Switch
The pressure switch at the pump outlet turns the motor
on
and of
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
the
Priming V
draws paint from the suction tube and through to
outlet valve.
alve
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 knob clockwise
causes
to
Outlet V
the paint to flow through the fluid outlet valve
the hose, roller valve and extension.
alve
and
The outlet valve has a ball check which prevents paint
from flowing backwards into the pump. This helps keep
an
even supply of paint to the roller each time you
the
roller valve.
Inlet V
As the diaphragm
paint
paint
alve
draws paint from the suction tube the
passes through the inlet
into the pump.
valve which opens to allow
trigger
460 T
12 MM (1/2 IN.) NAP
ROLLER COVER
O 920 MM (18 T
TELESCOPING EXTENSION
LOCKNUT
O 36 IN.)
ROLLER FRAME
Outlet Hose
The
hose has swivel–type couplings
A
larger diameter outlet hose and chemical-resistant out
let
and suction hoses are available. See ACCESSORIES
on
page 17.
Roller V
The
ing
alve
roller valve controls paint flow to the
it on and of
f.
for easy assembly
roller by trigger
Pressure Roller
The pressure roller has a telescoping extension and a
roller cover for use on smooth surfaces. Longer extensions and different types of roller covers are available.
See
the ACCESSORIES on page 17.
307–760
.
-
-
3
SUCTION TUBE
SETUP
HAND
TIGHTEN NUT
POWER
SUPPL
Add
plug according to
SPRING GUARD
MUST BE A
THIS END
USE TWO
WRENCHES
T
O TIGHTEN
ROLLER V
ON/OFF
SWITCH
Y CORD
local code
T
ALVE
TRIGGER
WRENCHES
T
PRIMING TUBE
INLET V
ALVE
MOTOR
USE TWO
O TIGHTEN
TIGHTEN SNUGL
LIGHT WRENCH
PRIMING V
AINT STRAINER
P
7.6 M (25 FT) HOSE
460 T
O 920 MM (18 T
TELESCOPING EXTENSION
LOCKNUT
HAND TIGHTEN ONL
12 MM (1/2 IN.) NAP
ROLLER COVER
Y WITH
ALVE
O 36 IN.)
Y
Apply PTFERtape
Fig
2
CAUTION
To avoid premature wear of the pressure switch,
never
use more than 7.6 m (25 ft) of 1/4 in. ID outlet
hose. When longer outlet hose is needed, use 3/8
ID hose at a maximum of 30 m (100 ft) long. Nev
in.
er
use 1/4 in. ID and 3/8 in. ID hose together
See
ACCESSORIES, page 17, for ordering optional
.
hoses.
WARNING
remove the grounding pin of
Never
the power sup
ply cord plug. Be sure the outlet is properly
grounded.
grounding
In the event of an electrical short circuit,
reduces the risk of an electric shock by
providing an escape wire for the electric current.
Inspect
before
the power supply cord
and extension cord
each use. Be sure they are
in good condition
and have undamaged three-pin plugs. Replace
immediately
4
if either cord is worn or damaged.
307–760
ROLLER FRAME
to male threads
HAND TIGHTEN ONL
to avoid cracking roller cover
1.
Assemble
notes
2.
Prepare the paint according to the manufacturer’s
-
recommendations.
the paint. Strain the paint. Thin the paint as needed.
3. Be sure the electrical service is properly rated for
your sprayer and that the outlet you use 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
propriate
-
metersfeet
1
– 30
30 – 61
61 – 92
4. Loosen
adjust the extension to the desired length. Firmly
tighten
Y
the system as shown in Fig
2, following the
on the drawing.
Remove any
skin from the top of
wires. Use the chart below for selecting the ap
wire gauge for the extension cord.
Extension Cord Chart
Cord Length
1 – 100
100 – 200
200 – 300
the locknut on the telescoping extension
Extension Cord
Cross Sectional Area
1.0 mm
1.5 mm
2
2
2
0.75 mm
and
the locknut.
-
STARTUP
1. Place
2.
3.
4. Turn the ON/OFF switch ON.
5.
Failure
the
greatly
the suction tube in the pail of paint.
Plug in the sprayer
Open the priming valve 2 turns counterclockwise.
You can see the paint being drawn into the suction
(if the tube is clean). As soon as you see paint
tube
flow through the priming tube, close the priming
valve.
This usually takes less than 30 seconds.
to completely close the priming valve after
system is primed will cause the valve to
shortening the valve life.
.
CAUTION
erode,
NOTE:
6. When the outlet hose and extension tube are fully
primed, the motor will run when there is paint demand,
paint
NOTE:
OPERATION
If your system is hard to prime, first try to force
feed
the suction tube. Hold the suction tube in a
vertical
system.
minute, shut it off. Heavy viscosity paint may
need to be thinned. Be sure to follow the paint
manufacturer’s
An occasional start and stop of the motor when
the roller valve is not triggered is normal.
position and pour paint into it. T
If the system does not prime within one
recommendations on thinning.
but
appears to shut itself of
demand.
urn on
the
f when there is no
WARNING
To reduce the risk of electric shock, do not expose
system to rain. Always store the system indoors.
the
CAUTION
Always
perature
tem.
Do
and outlet hoses supplied with this system. These
fluids
tional
See
hoses.
allow cold equipment to warm to room tem
before using to prevent damaging the sys
Always store the system indoors.
CAUTION
not use lacquer or lacquer thinner
quickly destroy the hose material. Use the op
chemical–resistant hoses.
ACCESSORIES, page 17, for ordering optional
in the suction
1.
With the system fully primed, trigger the roller valve
briefly until paint comes to the roller
2.
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
3.
-
-
-
To adjust the extension tube length, loosen the
and extend or retract the tube. If retracting,
nut
paint
in the tube will
this
excess paint onto the wall, or completely retract
the tube, drain the excess paint into a pail, and then
adjust
the tube length. T
4.
Whenever you stop painting, turn the ON/OFF
switch
to OFF and trigger the roller
roller end of the tube to prevent paint from draining
out
the roller end.
5.
Flush the system thoroughly and immediately after
each use to keep it in good working order. See
page
6.
be pushed out to the roller
ighten the locknut
.
lock
some
. Roll
securely
valve. Elevate the
.
-
.
307–760
5
MAINTENANCE
CAUTION
Thorough
sential
Improper
system
may
ALWAYS
ately
ALWAYS
when
ALWAYS
flushing and proper
maintenance are es
to keep your system working properly
flushing or maintenance
may prevent the
from working the next time you need it,
result in costly damage to the system.
flush your system thoroughly and immedi
after each use.
fully extend the telescoping extension
flushing to clean it thoroughly
.
drain all water out of the roller valve and
extension and leave the system filled with mineral
spirits
to prevent corrosion.
Flushing (Latex Paint Only)
1. Turn the ON/OFF switch to OFF
2.
Fully extend the telescoping extension.
3.
Trigger the roller valve and roll out the excess paint
.
onto a wall or newspaper. Remove the roller cover
and
dif
fuser
4.
, and soak in a
Place
the
suction tube in the pail of warm, soapy wa
ter.
Hold the roller frame over the paint pail, turn on
pail of warm soapy water
the system and trigger the roller valve to drain and
save
the paint in the hoses. Release the trigger
shut off the pump as soon as all paint is drained, to
avoid
contaminating the paint with the flushing water
and
-
-
and
6.
Raise the suction tube above the water and run the
pump
for a few seconds
Shut
of
f the pump.
7.
Wash off all external parts of the hoses, extension,
roller
frame, roller valve and pump.
8.
Using
clean, clear
as
often as necessary
cleaned.
9.
Finally,
just
off
flush
the system with clean mineral spirits for
a few seconds. Open
the pump. Some mineral spirits
system to prevent corrosion. Retract the extension
before
storing it.
leave
Never
water or water-based paint (latex) in the
system. To prevent corrosion in the pump, extension, roller valve and roller frame, your final flush
must
be mineral spirits.
10.
Clean the roller cover thoroughly by rinsing it inside
.
-
and out. Clean the dif
1
1.
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 miner
al
spirits. Do not heat the mineral spirits.
to drain the flushing solution.
water
, flush again, changing water
, until the system is
thoroughly
the priming valve and turn
must be left in the
CAUTION
fuser as explained on page 3.
-
Now
5.
hold the roller frame over the flushing pail. T
on
the pump and trigger
solution
for three to five minutes (five
the roller valve. Circulate the
to ten minutes
if it is cold). Pump the extension in and out a few
times to clean it, and then leave it extended. Open
the
priming
tube. Close the valve.
ing
valve for a few seconds to clean the prim
urn
OIL REGULARL
Y
-
EXTENSION
BE FULL
WHEN FLUSHING
MUST
Y EXTENDED
Fig 3
6
307–760
MAINTENANCE
Installing
1.
2.
and Removing a Roller Cover
To install a cover, hold the dif
retainer
bly
nut. Slide the cover over the dif
and reinstall the nut. Do not overtighten the nut.
fuser and unscrew the
(See Fig 4)
fuser assem
To remove a cover, hold the cover and unscrew the
retainer nut. Slide the cover and diffuser assembly
off the roller frame. Press on the end of the diffuser
assembly
Cleaning the Roller Diffuser
to separate it from the cover
(See Fig 5)
.
1. For water base paint (latex), vigorously shake the
diffuser
in a pail of hot soapy water
to remove undried
paint. For oil–base paint, use mineral spirits. Use a
brass bristle brush to remove dried paint.
soft
2. To clear an obstruction in the frame, or for more thor
ough
cleaning,
stall
it after cleaning.
remove the setscrew
NUT
. Be sure to rein
3.
Disassemble if further cleaning is needed.
a.
-
Remove
cap. Disassemble all parts and clean thoroughly
in
b.
Install the inside end cap on the frame. Lightly
grease
the
two screws. Pull of
water or mineral spirits.
the u-cup seal with
f the outside end
petroleum jelly
. Slide
the diffusers onto the roller frame. Twist and
press
the
last dif
fuser to snap the pieces togeth
-
er.
c. Install the outside end cap and the two screws.
Holding
and
en
-
sure there is no binding and that the diffusers
move
the
inside end cap, press on the screws
rotate the dif
fusers to seat
the screws. T
ight-
the screws evenly into the inside end cap. Be
freely
.
-
DIFFUSER
COVER
Fig 4
INSIDE END CAP
U-CUP
SEAL
Grease lightly with petroleum jelly
Lips of seal must face diffuser
DIFFUSER
FRAME
OUTSIDE
SETSCREW
SCREW
END CAP
Fig
5
307–760
7
TROUBLESHOOTING GUIDE
WARNINGCAUTION
Pressure
To
reduce the risk of serious bodily injury
injury from moving parts or electric shock, always
follow
tem,
tem,
1. T
2. Unplug the power supply cord.
3. T
If
you suspect that pressure is not fully relieved after
following
turns
PROBLEMCAUSESOLUTION
Pump
Relief Procedure
, including
this procedure whenever you shut of
f the
sys
when checking or servicing any part of the sys
and whenever you stop painting.
urn the ON/OFF switch to OFF
.
rigger the roller valve to relieve pressure.
the steps above, open the priming valve
counterclockwise.
will not prime or primes slowly
Clogged suction tube strainer
2
Thoroughly flush the system after each use to reduce
down time and costly repair bills.
-
-
NOTE:
If you are not able to determine the cause of
problem, or the problem and solution is not
cussed
thorized
in this chart, return the system to an au
service agencyfor repair
Clean.
the
dis
-
-
.
Pump wil not start
Low paint flow or no paint flow
Paint too thick
Outlet valve spring worn
Inlet
valve stuck or damaged.
Loose inlet hose nut
Power cord unplugged
ON/OFF switch turned offT
Damaged motor
Fuse burned out.
.Clogged roller valve, diffuser, roller frame,
roller
valve or hose
Thin; try pouring paint into suction tube;
use
3/8 in. ID hose if necessary
Pour
paint into suction tube and try to prime
system.
place
Depress inlet valve gently and pour in
about 1 teaspoon mineral spirits. Try to
prime pump. Replace inlet valve if necessary.
Tighten.
Plug in.
Replace. See page 13.
Replace.
quickly,
Clean
6.
If it doesn’t prime in one minute, re
the outlet valve spring. See page 1
See page 10.
DEPRESS LIGHTLY.
POUR IN 1 TEASPOON
MINERAL SPIRITS
urn on.
See page 10. If it burns out
return the system for repair
thoroughly
after each use. See page
.
again
.
-
1.
Pump runs after roller valve trigger is
released.
8
307–760
Using
more than 7.6 m (25 ft) of
1/4 in. ID hose
Loose inlet hose nut
W
orn priming valve
Priming valve is open
Paint too thick
Damaged pressure switch
W
Tighten.
Replace. See page 12.
Close.
Thin.
Replace. See page 1
Replace. See page 1
Replace. See page 1
Replace. See page 1
Replace. See page 12.
Repair
. See page 9.
on page 17.
1.
1.
1.
1.
Roller Valve
WARNING
Always follow the Pressure Relief Procedure
Warning
on page 8 before attempting any repair
REPAIR
N
.
NOTE:
Order repair kit no. 218–960 to repair this roller
valve.
1. Tap
2.
3.
out the pin (A) and slide the trigger (B) of
valve.
See Fig 6.
f of the
Remove the cap (C).Unscrew the fluid housing (D).
See
Fig 6.
Pull the needle (K) out.
4. Tap the seat (G) out of the roller valve (N). See Fig
6.
5. Remove
6. Turn
needle
packing
7. Clean
or
8. Grease
pered
packing.
9. Guide
bly
end
10.
Grease
the ball (F) and spring (E). See Fig 6.
the nylon screw (L)
into the packing. Insert the
(K) through the housing (D) and push out the
(H). See Fig 7.
all parts thoroughly
. Use a cotton–tipped swab
pipe cleaner to clean small orifices.
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
the lips of the packing over the
of the tool. See Fig 8.
the free end of the needle. Guide the tool (M)
into the fluid housing until the needle protrudes
through the top of the housing. Lightly tap the tool
end
until you hear the packing bottom in the
Remove
11. Grease
the tool with pliers. See Fig 8.
the seat (G) and place it on the fluid housing
housing.
so the seat which is formed on the inside diameter
faces
out. See Fig 9.
J
K
D
C
B
E
A
F
G
H
TORQUE TO
1.7 – 2.2 N.m
(15–20 in-lb)
Fig 6
-
-
L
H
D
K
Fig 7
LIPS F
ACE OUT
OF HOUSING (D)
TAPERED
END
M
12. Install
13. Place
the spring (E) in the spring cavity of the valve
handle,
spring.
lightly
then install the ball (F) so it is centered on the
See Fig 6.
the o-ring (J)
around the fluid housing. Pushing
with your fingers, start the threads of the
hous
ing into the valve handle. Torque the housing to
1.7–2.2
14.
Push on the needle until you feel some resistance.
N.m (15–20 in–lb). See Fig 6.
15. Grease the cap (C) and place it on the end of the
needle.
16. Slide
Fig
See Fig 6.
the trigger (D)
6.
into place. Install the pin (A). See
CAUTION
Never attempt to remove the adapter fittings from
either end of the valve body (N). Doing so could
crack
the body
.
Fig 8
DHK
SEA
T MUST
F
-
ACE BALL
N
F
E
GDC
Fig 9
307–760
9
REPAIR
WARNING
repair procedures should be performed only
These
by
qualified repair personnel with an electrical back
ground,
using the proper tools. Failure to
do the pro
cedures correctly can result in electric shock, or oth
er
serious injury and damage to the pump.
WARNING
Always follow the Pressure Relief Procedure
Warning
NOTE:
on page 8 before attempting any repair
For
all electrical repair
, follow the Pressure Relief
Procedure Warning on page 8, and then 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.
Remove
only
Rectifier
1. Disconnect the four leads from the rectifier
2.
Remove the rectifier (39).
the old fuse (67) and install a new one. Use
a 3AG, 1 amp fuse.
(See Fig 1
1)
.
ON/OFF
1.
Switch
Disconnect the two leads from the ON/OFF switch
terminals.
(See Fig 10 & 1
See Fig 1
1.
1)
-
2.
-
Remove
base.
3.
Install the new switch, aligning the tab in the base
with
4. Connect
.
minal,
nal
the boot (36). Pull the switch (34) out of the
See Fig 10.
the slot in the switch. See Fig 10. Install the boot.
a pressure switch lead to the power-out
and a jumper wire lead to the power-in
ter
termi
of the new ON/OFF switch.
-
-
WARNING
To
maintain grounding continuity in your system, and
reduce the risk of electric shock, be sure the green
ground wire from the power supply cord is properly
connected
in
Step 4, above. Also be sure the screw (25) is tightly
screwed
Power Supply Cord
1.
Disconnect
minal
cord
2.
Loosen
ing
to the grounding screw (83) as instructed
into the base. See Fig 10 and 1
(See Fig 1
1)
1.
the power supply cord leads from the ter
strip (71) by loosening the three screws on the
side of the strip. See Fig 1
1.
the screw in the side of the strain relief bush
(38) and pull out the cord.
-
-
3.
Install a new rectifier so the positive terminal (+) is
4.
closest
Connect
to the fuse holder (65).
the blue lead to an
unmarked terminal, and
the pressure switch lead to the other unmarked terminal.
Connect the black motor lead
(–)
terminal, and the red motor lead to
to the negative
the positive (+)
terminal.
31
72
36
71
70
34
39
33
65
68
67
41
26
83
70
82
26
28
25
42
43
33
3.
4.
SCREW
38
JUMPER
WIRE
Strip approximately 6 mm (1/4 in.) of insulation off
each end of the new cord. Install the new cord and
connect the leads to the terminal strip as shown in
Fig
1
1, being sure that each
a
like-colored lead.
Install
an appropriate, three-pin plug on the other end
of
the power supply cord.
color lead is across from
33b
MOT
34
65
BLACK
RED
OR LEADS
71
70
39
28
YELLOW/GREEN
BROWN
BLUE
PRESSURE
SWITCH
LEADS
(2)
25
41
83
Fig 10
10
Fig 11
307–760
REPAIR
Pressure
1.
2.
3.
Switch
(See Fig 1
1, 12 & 13)
Disconnect the pressure switch leads from the ON/
OFF
switch and from the rectifier
. See Fig 1
Remove the front cover (23). See Fig 13.
Unscrew the retainer (14) and remove the pressure
switch (12) and o–ring (12a). See Fig 12.
4.
Grease and install a new o–ring (12a) in the pump
housing
5.
Slide the retainer (14) over the pressure switch and
screw
retainer
6.
Guide the pressure switch leads through the base.
Connect
(9). See Fig 12.
the retainer into the pump housing. T
to 6.2–7.4 N.m (55–65 in–lb). See Fig 12.
a lead to the power–out side of the ON/OFF
switch (34) and a lead to an unmarked terminal on
the
rectifier (39). See Fig 1
7.
Reinstall the front cover (23).
1.
CAUTION
avoid damaging the pressure switch, do not
To
it,
and do not press on the center of the switch.
1.
orque the
drop
Inlet V
alve
(See Fig 13)
1.
Unscrew the suction hose (44). Unscrew the inlet
valve (3). Remove the gasket (4) and replace it if it
is
worn.
2.
Screw
the new valve into the pump housing, torquing
to
27–29 N.m (240–260 in–lb).
NOTE: To torque the inlet valve, have someone firmly
hold
the pump housing (9).
3
10
2f
2
2e
2d
9
2c
2b
2a
12a
TORQUE TO
12
13.5– 16 N.m
(120–140 in-lb.)
14
TORQUE TO
6.2–7.4 N.m
(55–65 in-lb.)
TORQUE TO
32–34 N.m
(280–300 in-lb.)
Outlet V
1.
2. T
3.
4.
5.
6.
alve
(See Fig 12)
Remove
ting
the
outlet hose (64). Unscrew the outlet fit
(2a) and remove the gasket (2b).
ip the pump forward to remove the ball (2d).
Use a 1/4 in. square socket wrench extension to
screw
out the seat (2e).
Use a pointed tool, such as a dentist’s pick, to remove
the seal (2f).
Thoroughly clean all parts and dry
.
Tip the pump back. Install a new seal (2f), making
sure
it lays flat.
7. Install the seat (2e) and torque it to 13.5–16 N.m
(120–140
8.
Drop in the ball, making very sure it stays there!
in–lb).
CAUTION
not drop the ball into the pressure switch cavity
Do
(12). If it does, and the outlet fitting (2a) is then installed,
the switch will be permanently damaged.
Fig 12
-
44
3
TORQUE TO
27–29 N.m
(240–260 in-lb.)
4
9
23
9.
Check the ball stop pin in the outlet fitting (2a) for
wear, and replace the fitting if necessary. Place a
new gasket (2b) around the fitting. The last coil on
one
end of
the spring (2c) is turned in. Place this end
on the ball stop pin. Screw the fitting into the pump
housing,
and torque to 32–34 N.m (280–300 in–lb).
Fig 13
307–760
11
Diaphragm
(See Fig 14)
CAUTION
To
avoid leaks and costly pump
damage, replace the
diaphragm whenever the pump housing (9) is removed or after each 100 hours of use, whichever
comes
the
1.
first. During use,
small grooves are formed in
diaphragm which cannot be realigned properly
Remove the screws (15). Tip the pump housing (9)
back, being careful not to damage the wires. Remove
the front cover plate (23).
2.
Check the diaphragm guide (11), and replace it if
necessary.
then
use
your fingers to press it evenly into place.
3.
Unscrew the diaphragm (17).
4.
Use a soft bristle brush to clean the top of the connecting
Clean
the pump housing thoroughly
lay the flat side of the guide into the housing and
rod and housing. Gently clean the bottom of
the pump housing (9), avoiding damage to the diaphragm
5.
Check the rod, motor bearing and eccentric for
grooves.
paint. If there is any paint or damage, clean or replace
the connecting rod assembly as explained on
page 13.
REPAIR
.
, and
LUBRICA
THREADS
TORQUE TO
85 in-lb
(9.6 N.m)
15,16
11
17
Fig 14
TE
44
47
45
46
9
D
23
CAUTION
To ensure the diaphragm will work properly, do not
the diaphragm more
turn
ing
it.
6.
Screw the new diaphragm (17) into the connecting
rod
just
until it bottoms out. Then turn it 1/4 to 1/2 turn
(2.7–3.6
7.
Apply thread lubricant to the screws (15) and install
N.m [6–8 in–lb]).
than 1/2 turn when torqu
them with the lockwashers in the pump housing.
Torque the screws a little at a time, oppositely and
evenly,
to 9.8 N.m (85 in–lb).
8. Spin the motor shaft (D) to be sure it turns freely
9. Reinstall the front cover (23).
Priming V
NOTE:
1.
alve & T
ube
(See Fig 15)
Each new priming valve kit includes a priming
tube
and fittings.
Unscrew the nut (E) of the priming valve (10a), and
then
unscrew the stem of the handle.
2. Unscrew the priming valve (10a).
3.
Wrap the threads of the priming valve with PTFE R
tape,
and then screw it
The
valve handle should be parallel with the angled
edge
of the housing to avoid interference with the in
let
or outlet valves.
4.
Slide the nut (10d) and ferrule (10c) onto the tube
snugly into the pump housing.
(10e), and then install the tube support (l0b) in the
end
of
the tube. Screw the nut onto the 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
the stem into the valve.
12
307–760
52
45
46
1
10e
10d
10c
10
10b
10a
48
WITH
T
APE
49
.
E
WRAP
PTFE
9
Fig 15
Suction Tube (See Fig 15)
1.
Unscrew
(47).
2.
-
With the nipple (46) inserted through the nut (45),
dampen the new hose (44) with warm water and
the
hose nut (45). Remove the hose camp
Slit the suction hose to free the nipple (46).
press the hose over the nipple. Screw the nut onto
the
inlet valve housing, and
ther
onto the nipple. Leave about a 1/8 in. (3 mm) gap
between
3.
Install the hose camp (47) and tighten snugly
4.
Remove
install
warm
the nut and hose end.
the filter housing (48) and strainer (49)
them on the new hose. Dampen the hose with
water to ease assembly
then press the hose fur
.
and
.
-
Connecting Rod and Bearing (See Fig 16)
1.
Remove the front cover plate (23). Remove the
screws (15) and tip the pump housing (9) out of the
way.
Unscrew the diaphragm (17) and discard.
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 leaking
which
will result in costly damage to the pump.
2.
Remove the motor screws (20). Lift the motor (30)
slightly. Holding the connecting rod, pull the motor
away
from the housing (22).
3.
Inspect the bearing (18b) in the connecting rod (18).
If it is worn or any rollers are broken, replace the
bearing
and rod assembly
(18). Inspect the motor ec
centric (F), and replace the motor if the eccentric is
worn.
4.
Use
your fingers to pack high–quality bearing grease
thoroughly
in between the bearing rollers.
CAUTION
Thorough
tend
greasing of the
bearing is essential to ex
the life of the bearing and
the motor eccentric.
REPAIR
PRESS
-
Fig 16
69
34
INT
17
FIT
O 22
30
43
33
15
16
9
21
20
18a
18b
GREASE
BEARING
THOROUGHLY
23
22
42
5. Use
6.
a soft
brass or nylon bristle brush to clean the top
of
the
connecting rod and housing. Gently clean the
bottom
the
Install
of the pump housing (9), avoiding damage to
diaphragm grooves.
the connecting rod (18) in the connecting
housing (22). Screw a new diaphragm (17) into the
rod
just
until it bottoms. T
to
1/2 turn more (2.7–3.6 N.m [6–8 in–lb]).
7.
Align the motor with the pins in the connecting rod
housing
connecting
be
8.
Loosely
(22), guiding the motor eccentric through the
rod bearing (18b). Spin the motor shaft to
sure it moves freely
install the lockwashers (21)
urn the diaphragm
.
and screws (20).
Spin the motor shaft again. Now alternately tighten
the
screws. Spin the motor shaft 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 determine
the cause of the binding.
9.
Position
the pump housing (9) on
the sprayer
cate the screws (15) and install them and the Iockwashers
pounds
in–lb
(16) loosely
. T
orque the screws a few
(N.m) at a time, oppositely and evenly
(9.8 N.m).
only
. Lubri
inch–
, to
rod
1/4
85
Motor
(See Fig 16)
1.
Remove the front cover plate (23).
2.
Remove the bumpers (43) and the bottom cover
plate
(42). Disconnect the
tive
and negative rectifier terminals. See Fig 1
motor leads from the posi
1, page
-
12.
3.
Remove
the motor screws. Lift the motor (31)) slight
ly. Holding the connecting rod, pull the motor away
from
the housing (22).
4.
Inspect
the bearing (18b)
in the connecting rod (18).
If it is worn or any rollers are broken, replace the
bearing and rod assembly (18) as instructed to the
left.
5.
Use
your fingers to pack high-quality bearing grease
thoroughly
6.
Feed the motor leads through the rubber grommet
(69).
in between the bearing rollers.
Align the motor with the pins in the connecting
rod housing (22), guiding the motor eccentric
through the connecting rod bearing (18b). Spin the
motor
7.
shaft to be sure it moves freely
Loosely
install the lockwashers (21)
.
and screws (20).
Spin the motor shaft again. Alternately tighten the
screws. Spin the motor shaft again. See the CAUTION
-
8.
in Step 8 to the left.
Connect
nal
nal
the red motor lead to the positive (+) termi
and the black motor lead to the negative (–) termi
of the rectifier (39). Refer to Fig 1
ed to this manual. It is identical to Model
220–240
valve,
Added85108–716Terminal
Added86065–239Wire
Added87065–236Wire
Old
New
Old
New
55b
55c
108–186
108–808
275–644
183–420
O–ring
Seal
Nut
Nut
Basic System, Model 221–076, has been add
except it does not include a hose, roller
extension or roller
.
-
307–760
19
TECHNICAL
DA
TA
Maximum
Power
Pump
Power
Weight6.1
WARRANTY
Graco
warrants all equipment
workmanship on the date of sale by an authorized Graco distributor to the original purchaser for use. As
purchaser’s
sale,
repair or replace any part of the equipment proven defective, with the exception of defects in parts on
the drive train/gear box, which will be repaired or replaced for forty-eight months from the date of sale, and
the electric motor (excluding brush replacement, which is routine maintenance) or pressure control
assembly which will be repaired or replaced for twenty-four months from the date of sale. This warranty
applies
recommendations.
sole remedy for breach
only when the equipment is installed, operated and maintained in accordance with Graco’
, Graco will, for a period of twelve months from the date of
17.5 bar (25l) psi)
Kg. (13.5 lb)
s written
This
warranty does not cover
faulty installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence,
accident, tampering, or substitution of non–Graco component parts. Nor shall Graco be liable for
malfunction, damage or wear caused by the incompatibility with Graco equipment of structures,
accessories, equipment or materials not supplied by Graco, or the improper design, manufacture,
installation, operation or maintenance of structures, accessories, equipment or materials not supplied by
Graco.
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an
authorized
replace free of charge any defective parts. The equipment will be returned to the original purchaser
transportation prepaid. If inspection of the equipment does not disclose any defect in material or
workmanship,
labor
DISCLAIMERS AND LIMIT
The
other
for
a particular purpose, and of any non–contractual liabilities, including product liabilities, based
on
negligence or strict liability
or
loss is expressly excluded
purchase
sale.
EQUIPMENT
Graco
particular
manufactured by Graco. These items sold, but not manufactured by Graco (such as electric motor,
switches,
with
Graco distributor for verification of the claim. If the claimed defect is verified, Graco will repair or
repairs will be made at a reasonable charge, which charges may include the costs of parts,
and transportation.
terms of this warranty constitute purchaser’s sole and exclusive
warranties (express or implied), including warranty of merchantability or warranty of fitness
price. Any action for breach of warranty must be brought within two (2) years of the date of
NOT COVERED BY GRACO W
makes no warranty, and disclaims all implied warranties of merchantability and fitness for a
purpose,
hose, etc.) are subject to the warranty
reasonable assistance in making any claim for breach of these warranties.
with respect to accessories, equipment, materials, or components sold but not
, and Graco shall not be
ATIONS
. Every form of liability for
and denied. In no case shall Graco’
liable for
ARRANTY
, if any
, of their manufacturer
, any malfunction, damage or wear caused by
direct, special or consequential damages
remedy and are in lieu of any
s liability exceed the amount of the
. Graco will provide
purchaser
Factory Branches:
Subsidiary and Affiliate Companies:
GRACO INC.P.O. BOX 1441
20
307–760
Atlanta, Chicago, Dallas, Detroit, Los Angeles, W
est Caldwell (N.J.)
Canada; England; Switzerland; France; Germany; Hong Kong; Japan
PRINTED
IN U.S.A.
MINNEAPOLIS, MN
307–760 1–86 Revised
55440–1441
8–89
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