3000 psi
3400psi (234 bar) MAXIMUM WORKING PRESSURE
HYDRA-CLEAN 3235
PIN 800-705, Series
3200
3600psi (248 bar) MAXIMUM WORKING PRESSURE
(1 72 bar) OPERATING PRESSURE
(207
bar) OPERATING PRESSURE
psi
(221 bar) OPERATING PRESSURE
11 HP IIC ENGINE
A,
12.5 HP OHV ENGINE
A,
11 HP IIC ENGINE
A,
12.5 HP OHV ENGINE
A,
11 HP IIC ENGINE
GRACO INC.
PO.
BOX
1441 MINNEAPOLIS, MN 55440-1441
@COPYRIGHT
1991,
GRACO INC.
HIGH
FOR PROFESSIONAL
PRESSURE SPRAY CAN CAUSE SERIOUS INJURY.
USE
ONLY. OBSERVE ALL WARNINGS.
Read and understand all instruction manuals before operating equipment.
FLUID
General Safety
This pressure washer generates very high fluid
pressure. Spray from the gun, leaks or ruptured
components can inject fluid through your skin and into
your body and cause extremely serious bodily injury
including the need for amputation. Also, fluid injected or
splashed into the eyes or on the skin can cause serious
damage.
NNER
part of the body.
spray tip.
ALWAYS
cleaning or servicing any part of the sprayer.
NNER
body.
Be sure equipment safety devices are operating
properly before each use.
Medical Treatment
If
EMERGENCY MEDICALTREATMENTATONCE. DO
NOT
what fluid was injected.
INJECTION
point the spray gun or wand at anyone or at any
NNER
follow the Pressure Relief Procedure, before
try
to
stop or deflect leaks with your hand or
any
fluid
appears
TREAT
NOTE TO PHYSICIAN Injection
traumatic
surglcally .as
treatment
concern' with some exotic coatings injected
direct@
p/astic surgeon
may be adrisable.
AS
A
injuty
soon
to
research tawiciiy. Toxicity
inM
the bloodstream. Consultation
HAZARD
put hand or fingers over the
to
penetrate your skin, get
SIMPLE CUT. Tell the doctor exactly
in
It
Is
lmpotiant
as
possible.
or
reconstructiVe
to
treat the
Do
hand
the skin
is
a
Injury
not delay
is
a
with
a
surgeon
Pressure Relief Procedure
To reduce the risk of serious bodily injury, including fluid
injection and splashing in the eyes or
always follow this procedure whenever you stop
10
spraying for more than
and before checking or repairing any part of the system.
1.
Engage the trigger safety latch.
2.
Tum the sprayer
3.
Remove the ignition cable from the spark plug.
4.
Shut
off
the water supply.
5.
Disengage the trigger safety latch and trigger the
to
relieve pressure, and then engage the trigger
gun
safety latch again.
6.
Before long-term (overnight) storage or
transporting
turn
and
Spray Gun Safety Devices
Be sure all gun safety devices are operating properly
before each use.
the gun; this can cause a malfunction and result in
serious bodily injury.
SAFEPl LATCH: Whenever you stop spraying for a
moment, always set the gun safety latch in the engaged
or "safe" position, making the gun inoperative. Failure to
properly set the safety latch can result in accidental
trlggering of the gun.
SPRAY
cleaning or changing spray tips.
while spraying, engage the gun safety latch
immediately.
Procedure and then remove the spray tip
TIP
of
off
the fuel supply valve.
Do
SAFETY:
ALWAYS
minutes, when shutting
off.
unit, disconnect the water supply
not remove or modify any part
Use extreme caution when
If
follow the Pressure Relief
on
the skin,
down,
of
a spray tip clogs
to
clean it.
2
308-531
FUEL AND EMISSION HAZARDS
NEVER
The fuel used in this unit is combustible and when Tampering with this adjustment can damage the
spilled on a hot surface can ignite and cause a fire.
ALWAYS
NNER
exhaust contains carbon monoxide, a poisonous,
odorless, invisible gas which can cause serious injury
or death
flll
the
fuel
tank while the unit is wnning or hot.
fill
tank slowly to avoid spilling.
operate the' unit in a closed building. The
if
inhaled.
NEVER
pressure washer and will void the warranty.
alter the throttle settlng, which
Is
factory set.
EQUIPMENT MISUSE HAZARD
General Safety
Any misuse of the pressure washer or accessories,
such
as overpressurizing, modifying parts, using
incompatible chemicals and fluids, or using worn or
damaged parts, can cause them to rupture and result In
fluid injection, splashing in the eyes or on the skin, or
other serious bodiiy injury, fire, explosion or properly
damage.
NEVER
so
CHECK
replace wom or damaged parts immediately.
ALWAYS
clothing.
the chemical manufacturer's literature for
recommendations on additional protective equipment,
such as a respirator.
alter or modify any part of this equipment; doing
could cause it to malfunction.
all spray equipment regularly and repair or
wear protecthre eyewear and appropriate
If
using a chemicai injector, read and follow
System Pressure
This sprayer can develop high operating pressures. Be
ail
sure that
to withstand the maximum working pressure of this
sprayer.
pressure of any component or accessory used in the
system.
spray equipment and accessories are rated
DO
NOT
exceed the maximum working
Chemical Compatibility
BE
SURE
injector are compatible with the wetted parts
hose, gun, wand and tip, as given in the Technical Data
(inside back cover). Always read the chemical
manufacturer's literature before usina any chemical in
this pressure washer.
that all chemicals used in the chemical
of
the
HOSE SAFETY
High pressure fluid in the hoses can be very dangerous.
If the hose develops a leak, split or rupture due to any entire hose for cuts, leaks, abrasion, bulging cover, or
kind of wear, damage or misuse, the high pressure
it
spray emitted from
other serious bodily injury or property damage.
ALL
FLUID HOSES
BOTH
from kinks or bends at or close to the coupling, which
can result in hose rupture.
T/GM€N
use. High pressure fluid can dislodge a
or allow high pressure spray to be emitted from the
coupling.
ENDS.
all fluid connections securely before each
can cause a fluid injection injun/ or these conditions exist, replace the hose immediately:
MUST
The strain reliefs help protect the hose
HAVE
STRAlN
loose
RELIEFS ON
coupling
NEVER
damage or movement of the hose couplings.
DO
with tape or any other device. A repaired hose cannot
contain
HANDLEAND
on hoses
chemicals which are not compatible with the inner tube
and cover
temperatures above
(-400
use a damaged hose. Before each
NOT
try to recouple high pressure hose or mend
the
high pressure fluid.
ROUTE HOSES CAREFULLY:
to
move the pressure washer.
of
the hose.
C).
DO
200"
NOT
expose Graco hose to
F
(93"
C)
use,
If
Do
Do
or below
check
any of
not pull
not
use
-40"
MOVING PARTS HAZARD
Moving parts can pinch or amputate fingers or other
KEEP
body parts.
or operating the pressure washer.
NEVER
and interlocks installed and functioning. Follow the
operate the pressure washer without all guards
CLEAR
of moving parts when starting
Pressure
servicing the pressure washer to prevent discharging
high pressure fluid from the gun.
Relief Procedure
before checking or
it
F
308-531
3
TERMS
WARNING:
that could cause bodily injury.
CAUTION:
that could cause damage
Alerts user
Alerts user
to
avoid
or
correct conditions
to
avoid or comect conditions
to
the equipment.
NOW.
Identifies helpful procedures and Information.
IMPORTANT
United Stales Government safety standards have been adopted under the Occupational Safety and Health Act. These
standards-particularly the General Standards, Part 1910, and the Construction Standards,
consulted.
Part
1926-should be
4
308-531
INSTALLATION
__
~~
Flgure
Check
Check the unit for any damage that may have occurred
in shipping. Notlfy the carrier Immediately if there is
1
for
Shipping Damage
I-'
any damage.
Set
Up
If you are using a downstream chemical injector, install it
between the pump unloader and the high pressure
hose, using the quick couplers provided.
Connect the high pressure hose between the pump
outlet
and the gun inlet. Both of these connections are
made with quick couplers.
Connect a hose with at least a
oerformance.
if
used.
the water supply
The supply hose should not be more than
Install the appropriate spray tip on the wand. See
you
Installing and Changing Spray Tips. If
sandblaster kit,
see
its separate manual for installation
are using a
long.
instructions.
Connect to Water Supply
CAUTION
Before attaching
local plumbing code regarding cross-
connection to the water supply.
preventer,
backflow of contaminated water into the fresh
water supply. Install it upstream from the pump.
If inlet water pressure is over
regulating water valve,
installed at the garden hose connection.
Do not exceed
temoerature.
NOTE The water source at the unit
minimum flow rate equal
Technical Data, inside back cover).
P/N
801-133,
to
the unit's
to
the water supply, check your
A
backflow
160O
is available
60
P/N
800-258,
F
(70"
3/4
3/4
inch garden hose inlet.
to
prevent
psi
(4.1
bar) a
must be
C) inlet water
inch
(19
mm) ID from
50
ft(l5
must
have a
to
that of the unit (see
m)
308-531
5
~ ~~
STARTUP
Always use this start-up procedure to ensure that the
unit is started safely and properly.
1.
Check oil levels.
Engine:
Add
SA€
30
or
low-30
weigM detergent
oil
as necessary.
SAE
20
or
30
Pump: Add
as necessary, or use genuine
NO=
All
units are equipped with a low-oil sensor
that shuts the engine
below a certain level.
weight non-detergent oil
CAT@
pump oil.
off
if
the oil level falls
If
the unit stops
unexpectedly, check both the oil and the fuel
011
levels. Check the
level each time the unit is
refueled.
2.
Check fuel level.
WARNING
DO
NOT
refuel a hot engine. Refueling a hot
engine could
cause
afire. Use only fresh, clean
regular or unleaded gasoline. Close the fuel
shutoff valve during refueling.
3.
Rrn
on the water supply.
CAUTION
Never run the unit dry. Costly damage to the
pump will result. Always be sure the water
Is
supply
completely turned on before
6.
Start the engine.
NOTE:
For easier starting, have one person start the
pressure washer while another person
triggers the spray gun.
the
engine is cold, completely close the engine
If
choke. Grasp the starter rope, brace one foot on the
pressure washer chassis and pull rope rapidly and
In
Pull
cool
firmly. Continue holding the rope as it returns.
and return the rope until the engine Starts.
weather, the choke may have to be kept closed for
10
to
30
seconds before opening
it
to keep the
engine running. Otherwise, open the choke as soon
as the engine starts.
If
the engine is warm, leave the choke open, or just
partly close it. Start the engine as described in the
preceding paragraph. When
it
starts, be sure to
open the choke completely.
CAUTION
On recoil start engines, never let the starter rope
retum by itself. It could jam the recoil system.
7.
ALWAYS
whenever you stop spraying, even for a moment, to
reduce the risk of fluid injection
eyes or on
accidentally.
8.
ALWAYS
costly damage to the pressure washer.
engage the gun’s trigger safety latch
or
splashing in the
the
skin
if
the gun
is
bumped or triggered
observe the following CAUTIONS to avoid
4.
Trigger the gun until water sprays from the tip
indicating that the air is purged from the system.
5.
Open the fuel shutoff valve. Be sure the spark plug
is
ignition cable
those
On
units equipped with an ignition shutoff
pushedfirmly
onto
the spark plug.
switch, put the switch in the ”on” position and put
the throttle in the “run” position.
DO
NOT
allow the pressure washer to idle for
more than
recirculating water
damage’the pump. Tum
10
minutes. Doing
to
so
may cause the
overheat and seriously
off
the pressure washer
if it will not be spraying or cleaning at least every
10
minutes. If heated inlet water
is
used, reduce
this time further.
DO
NOT
run the pump dry, which
damage the pump.
Be
sure the water supply is
will
quickly
fully turned on before starting the pump.
DO
NOT
operate the pressure washer with the
inlet water screen removed. Tnis screen helps
keep abrasive sediment out
could clog
or
scratch the pump. Keep this
of
the pump, which
screen clean.
DO
NOT
materials mav corrode the
9.
See the chemical injector or sandblaster kit manual
for detailed cleaning infomation
pump caustic materials; such
ourno
comoonents.
if
accessories are used.
these
6
308-531
Trigger Safety
Latch
Installing
and
Changing
Spray
Tips
WARNING
To
reduce the risk of serious bodily injury,
including fluid injection, splashing in the eyes or
on the skin,
latch whenever spraying stops, even for a
moment.
in the engaged position, the trigger safety latch
prevents the gun from being triggered
accidentally by hand or
bumped. Be sure the latch is pushed fully down
when engaging
from being triggered. See Figure
ALWAYS
it
or
engage the trigger safely
if
it
is
dropped or
it
cannot prevent the gun
2.
WARNING
To
reduce the risk
including fluid injection or splashing in the eyes
or onto the skin, use extreme caution when
changing spray tips.
procedure below.
1.
Follow the Pressure Relief Procedure.
2.
Point the gun and wand away from yourself and
anyone else.
3.
Without holding your hand over the spray tip
pull back the quick coupler ring (6). Remove the old
tip and/or install a new one, and then release the
ring. See Figure
4.
Be sure the tip is secure before starting to spray
again.
5.
Tip holding holes are provided on the chassis.
To
avoid blowing the O-ring
coupler, due to the high pressure in the system,
never operate the pressure washer without a tip
of
serious bodily injury,
ALWAYS
3.
CAUTION
out
follow the
of
the quick
(A),
TRIGGER SAFETY LATCH SHOWN ENGAGED
TRIGGER
Figure
SAFETY
2
LATCH
SHOWN
DISENGAGED
Rgure
3
308-531
7
SHUTDOWN, FLUSHING
AND STORAGE
WARNING
Pressure
To
including fluid injection and splashing in the
eyes, .or on the skin, always follow this
procedure whenever you stop spraylngformore
than
before checking or repairing any part of the
system.
1.
2.
3.
4.
5.
6.
1.
If the pressure washer will be exposed
temperatures, drain all water
must be stored in freezing temperatures, flush the
unit with a
pressure. Flush the pressure washer before using
again
NOTE:
If
water dOeS freeze in the pressure washer,
thaw it in a warm room before trying to start it.
DO
2.
After each use, wipe all surfaces of the pressure
washer with a clean, damp cloth.
Rellef
reduce the risk of serious bodily injury,
10
minutes, when shutting down, and
Engage the trigger safety latch.
Tum the sprayer
Remove the ignition cable from the spark
Plug.
Shut
off
Disengage the trigger safety latch and
trigger the gun
engage the trigger safety latch again.
Before long-term (overnight) storage or
transporting of unit, disconnect the water
supply, and tum
to
remove the anti-freeze.
An
anti-freeze flush kit,
available
Procedure
off.
the water supply.
to
relieve pressure, and then
off
the
fuel
50%
anti-freeze solution. Relieve
to
make flushing easier,
supply valve.
to
out
of the pump.
P/N
802-327, is
freezing
CAUTION
NOT
pour hot water on or into the pump; it
MAINTENANCE
Observing regular maintenance intervals helps ensure
that you get maximum petformance and life from the
pressure washer.
There is a break-in period for the engine, pump and
gear reducer (if used). After changing the oil in these
components following their respective break-in
011,
.
to
20
is
or
I
periods, the interval between required changes
longer.
If the unit
maintenance checks should be made more often.
To
including fluid injection, splashing in the eyes or
on the skin or injury from moving parts, always
follow the Pressure
before proceeding.
Interval
Daily
After first
hours of
if
it
it
operation
Each
of operation
After first
hours of
operation
Each
of
operation
or 3 months
Each
3f operation
31
6
months
Is
operating
reduce the risk of serious bodily injury,
What
Clean water inlet screen and
filter. Check engine and pump oil
levels.
gasoline level. Fill as necessary.
Change engine break-in oil.
Drain oil when warm.
30
Clean and remove air cleaner
foam. Wash with water and
detergent. Dry thoroughly. Rub
With
DiI.
Change pump break-in oil. Use
SAE
25
5
hours
50
x
100
500
hours
hours
Clean or replace paper air
:leaner cartridge. Tap gently
'emove dirt. Change engine oil.
Jse SAE 30 or
jetergent oil.
:hange pump oil.
30
:A
in
dusty conditions, these
Relief
Procedure Warnlng
to
do
Fill
as necessary. Check
Use
or 1OW-30 detergent oil.
oil
and
squeeze
20
or 30 no detergent
genuine CAgpump
n
n detergent oil, or genuine
4-
pumpoil
low-30
Use
.
to
distribute
oil.
SA€
SA€
3.
Perform the appropriate maintenance. See
maintenance chart.
8
308-531
TROUBLESHOOTING
To
reduce the risk of
tom
injury
moving
serious
palls,
CHART
WARNING
bodily injury, including fluid injection, splashing in the eyes or on
always
follow
the
Pressure
Relief
Procedure
Warnlng
before proceeding.
the
skin or
1
PROBLEM
Engine
or
is
will
hard
to
not
start
stail
Engine misses or
lacks power
Low pressure and101
pump runs rough
CAUSE
No gasoline in
fuel
tank
M
carburetor.
Low oil.
Slop
WSlop switch in
Water In gasoline or old
position.
fuel.
Choked improperly. Flooded engine.
Dirty air cleaner filter.
Spark
plug dirty, wrong
gap
or wrong type.
Spray gun closed.
Partially plugged air cleaner filter.
Spark plug dirty, wrong gap or wrong type.
Worn
or
wrong
size
tip.
inlet filter dogged.
Worn packings. abrasivs in water or
natural wear.
Inadequate water supply.
Belt slippage.
or
Fouled
Even a small particle
lo
dirty inlet or discharge valves.
can
cause the valve
stick.
Restricted inlet.
Worn
inlet or discharge valves.
Leaking high pressure hose.
SOWTION
Fill
the tank with gasoline, open
fuel
shut
off
valve.
Check fuel line and carburetor.
Add
to
proper level.
Move switch
Drain
spak
to
Start position.
fuel
tank and carburetor. Use new
Plug.
fuel
and dry
Open choke and crank engine several times to clear
out gas.
Remove and clean.
Clean, adjust the gap or replace.
Trigger spray gun.
Remove and clean.
Clean, adjust the gap or replace.
Replace
with
tip
of
piopsr size.
Clean. Check more frequently.
See
Check filter. Replace packings.
Check water flow rate
Tighten or replace;
to
use
pump.
correct
PUMP SERVICE.
beits and replace both
at same time.
valve
Clean inlet and discharge
assemblies. Check
filter.
Check garden hose, may
be
collapsed or kinked.
Replace worn valves.
Replace high pressure hose.
Water leakage from
under pump manifol
Water In pump
Frequent or
premature failure of
the packings
Strong surging at
thc
inlet and low
pressure on the
Worn
packings.
Humid air condensing inside crankcase.
Nom
pkings.
Oil
seals leakino.
bred.
ruKaslve material in
Inlet water temperature
damaged or
worn
plungers.
the
fluid being pump
too
high.
3verpressurizing pump.
to
3cessive pressure due
3r
damaged tip.
'ump running
too
long without spraying.
partially pluggec
3unning pump dry.
the
=oreign particles in
inlet or discha
lake or wom inlet and/or discharge
va
'B
e
yes.
See
Install new packings.
as
Change oil
specified in MAINTENANCE.
Install new packings.
Install new oil seals.
Install new plungers.
PUMP SERVICE.
See
PUMP SERVICE.
See
PUMP SERVICE.
See
PUMP SERVICE.
Install proper filtration on pump inlet plumbing.
Check
water temprature; may not
Do
not modify any factory-set adjustments.
EQUIPMENT MISUSE
Clean or replace tip.
HAZARD.
See
Installing and Changing Spray
exceed
160°F.
See
lips.
Never run pump more than
Do
not run pump wlthoul water.
Clean or replace valves.
10
minutes without spraying,
See
PUMP SERVICE.
308-531
Q
PARTS DRAWING
800-701
and
800-702
PARTS
LIST
800-701 and 800-702 Hydra-Clean@ 2545 Pressure Washer
REF
NO.
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
1
2
3
4
5
6
PART
NO.
800-392
100-023
801
-941
801 -539
803-926
803-534
800-676
100-188
100-21 4
-550
801
801-612
801
-020
801-556
800-678
801 -546
801
-569
803-303
800-1
60
803-925
801 -571
801-568
803-298
800-375
800-652
802-01 6
176-250
172-981
-548
801
800-1 74
800-1
73
800-341
800-305
156-082
154-594
801-022
802-363
181 -867
801
-494
803-882
DESCRIPTION
GUN & WAND ASSEMBLY
fincl. 16. 21. 34.
h,
56,57)
35.
52.
,
~
~,
".
53.
.~.
".
WASHER. Flat 5/16
SCREW, Cap, hexhd.
5/16-18
X
1
BUMPERBELT GUARD
~ ~ ~~~
LABEL, Belt Guard
CHASSIS
NUT,Hex5/16-18
WASHER, Lock 5/16
WHEEL
WASHER, Flat
&
TIRE ASSEMBLY
1/2
NUT, Lock 1/2-13
AXLE
BRACKET, Rail Stiffener
SCREW, Cap, hex hd.
3/8-16~ 1-1/4
QUICK COUPLER, Female 3/8
(incl. 34) 2
LABEL, Model 2545
FRONT LEG ASSEMBLY
QTY
1
31
"
9
9
15
2
2
2
1
1
4
1
REF
NO.
41
42
43
44
45
46
47
48
49
53
51
52
53
54
55
56
57
58
59
60
61
62.
63
64
65
66
67
Ea
69
70
71
72
73
74
75
76
77
78
PART
NO.
801 -21 7
108-842
DESCRIPTION
BUMPER. Rubber
SCREW, Cap, hex hd.
(used on 800-701 only)
801
-21
0
SCREW, Cap, hex hd.
(used on 800-702 only)
801
801
801-896
804-255
802-1 17
177-144
803-531
803-246
BELT, Drive
-1
68
HUB, Engine
-898
SHEAVE, Engine
HUB, Pump
SHEAVE, Pump
LABEL, Belt Guard
BASEPLATE, Belt Guard
GUARD, Muffler
(used on 800-701 only)
-522
801
801
SCREW, Cap, hex hd.
-009
QUICK COUPLER. Female
801-134
801-674
111-040
803-350
GUN, Spray(see Inst.
Manual 308-51 I)
156-849
801 -531
801
801-505
NIPPLE, Hex 3/8
SCREW, Cap, hex hd.
3/8-16
-504
BUMPER. Rubber
RETAINER, spring
X
7
801-593 SPRING
801-506
BOOT
801 -537 LEG, Front
801-499 NUT, Lock 3/8-16
801-090 QUICK COUPLER, Male 1/4
Grasp valve retainer by tab at the top with pliers and
remove from valve chamber. Valve parts usually
separate during removal.
Note:
4.
5.
A
special
seat from the manifold.
standard vise grip and a
of seat Inserted under the edge
pry the valve seat out easily.
Examine all valve parts for wear and replace with
preassembled valve assembly in sefvice kit
containing retainer, spring, valve, valve seat,
O-ring, and back-up ring.
Grasp new valve assembly by tab
immerse in oil and push into valve chamber. Be
certain valve assembly is square in valve chamber.
tool
wom. Lubricate new O-ring
will be needed
to
remove the
A
reverse pliers or a
1/4”
x
3”
bolt
to
of
the seat, will
at
top with pliers,
fit
I.D.
Reassembly:
1.
Carefully examine each ceramic plunger for scoring
or cracks, replace ifwom and slip onto plunger rod.
Note:
2.
Note:
3.
Note:
4.
5.
Ceramic plunger can only be installed one
direction (front
Examine plunger retainer and stud and replace if
worn.
Thread stud into plunger retainer.
Examine O-ring. back-up ring and gasket on
plunger retainer and replace ifwom or cut. Lubricate
O-ring for ease of installation
damaging O-rings.
First install gasket, then back-up ring and
O-ring.
Thread plunger retainer and
plunger rod. Exercise caution not
Saturate new oil wick by soaking in oil, place in
seal retainer and slip retainer over ceramic plunger.
to
back).
Do
not force onto rod.
and
to
avoid
stud
assembly into
to
over torque.
6.
ApplyLoctite242tovakreplug,threadintomanifold
port and torque per chart.
Note:
Corrosion Resistant models require the coil
spring installed in the Valve Plug.
Servicing the Pumping Section
Dlsassembly:
1.
Remove the four
manifold (varies with model).
2.
Rotate crankshaft by hand
manifold from crankcase. Support the underside of
the manifold and tap lightly with a mallet
the manifold assembly.
(4)
hexnuts ortwo
(2)
boltsfromthe
to
start separation of
to
remove
CAUTION
Keep manifold properly aligned with ceramic
plungers when removing
either plungers or seals.
Remove oil pan and slide out seal retainer with
3.
wicks.
4.
Using a wrench, loosen the plunger retainer. Grasp
ceramic plunger and push toward crankcase until
plunger retainer pops out.
5.
Remove plunger retainer with copper gasket,
back-up Ring and O-ring.
6.
Remove plunger from plunger rod.
to
avoid damage
to
oil
Replace
6.
Tum shaft by hand
7.
plungers are parallel.
Carefully slip manifold onto plungers, keeping
8.
manifold level, and tap with mallet
flush with crankcase.
Replace washers and nuts
9.
chart.
pan.
to
line up plungers
to
or
bolts and torque per
so
end
bring manifold
Servicing the Seals and V-Packings
Disassembly:
1.
Remove the manifold as described.
With crankcase side of manifold facing up, unscrew
2.
the seal case from the manifold using
wrench.
3.
Remove O-ring from seal case.
4.
Remove snap ring and low pressure seal from the
seal case. Seals are generally removed easily
without any
5.
Hlgh
seal is generally easily removed from the manifold
without any
may be used.
6.
V-Packlng
v-packlngs and male adapter are easily removed
from manifold without
reverse pliers may be used.
tools.
Pressure Seal Models:
tools.
If
extremely worn a reverse pliers
Models:
The female adapter, two
tools.
If extremely wom
a
special key
The high pressure
a
18
308-531
Reassembly:
V-Packlng Models:
1.
Lubricate high pressure packing area in manifold.
2. Insert male adapter with notches down and
UP.
"v"
side
3. Lubricate v-packings and install one-at-a-time
with grooved side down.
4. Next install female adapter with grooved side
down.
5.
Examine seal case O-ring and replace if wom.
Lubricate new O-ring before installing.
6.
Thread seal case into manifold and tighten with key
wrench.
Hlgh Pressure Seal Models:
1. Lubricate seal area in manifold.
2. Carelully square seal into positlon by hand with the
metal grooved side up.
3.
Examine seal case O-ring and replace
if
wom.
Lubricate new O-ring before installing.
4.
Next secure high pressure seal into position by
threading seal case into manifold. Tighten seal
case with key wrench.
Servicing
Crankcase
Section
1. While manifold, plungers and seal retainers are
removed, examine crankcase seals for wear.
2. Check oil level and for evidence of water in oil.
3. Rotate crankshaft by hand to feel for smooth
bearing movement.
4.
Examine crankshaft oil seal externally for drying,
cracking or leaking.
5.
Consult factory or your local distributor
if
crankcase
service is evidenced.
Torque Chart
Pump Part Thread
Plunger M5
Tool
Slze Torque
11
mm hex
80
in. Ibs.
~~
Retainer
Manifold
ME x 1.25 13 mm hex 125 in. Ibs.
M10x1.25 17mmhex 217in.Ibs.
M10 17 mm hex 217 in. ibs.
Valve
-
24 mm
75 fl. Ibs.
Covers
75
27 mm
fl. ibs.
Low
Pressure Seal-All Models:
1. Examine seal for wear or broken spring and lace
if
necessary.
2. Install low pressure seal in seal case with garter
spring down.
3.
Reinstallhap ring. Be certain snap ring
if
Replace
4.
Replace manifold on pump as described and
it can be easlly tumed.
is
a tight
fit.
torque per chart.
308-531
19
ACCESSORIES
(Must
be
purchased separately)
DOWNSTREAM CHEMICAL INJECTOR
800-1
For injecting harsh cleaning chemicals downstream
from
the
17
&
pump.
800-649
800-649
is
stainless
steel
KIT
construction.
WATER SANDBLASTING KIT 800-120
For abrasive cleaning of stubborn dirt and paint.
Requires a spray tip which is not included in kit
uses
801-729,
Rfll-l%Nl\
"
.
-",
.
3040
UPSTREAM CHEMICAL INJECTOR KIT
800-257
For injecting mild cleaning chemicals upstream into the For flushing system with
pump.
ANTI-FREEZE FLUSH KIT 802-327
to
transporting or storing pressure washer
freezina temoeratures.
-.
BACKFUlW PREVENTOR 801-133
Prevent back-up
supply. Install upstream
of
contaminated water into fresh
of
pump.
INLET PRESSURE REGULATOR 800-258
Regulates inlet water pressure
maximum.
uses
803-107.
50%
anti-freeze solution prior
to
60
3235
psi
in
(4
(2545
uses
below
bar)
20
308-531
TECHNICAL DATA
PTFE
PTFE
PTFE
PTFE
PTFE
PTFE
Engine
(all
4
cycle, air
Gasoline Tank
Water Pump
pressure
Water Pump Maximum
Inlet Hose Connection
Weight
Dimensions
Lensth
width
Height
Maximum Inlet Water
Temperature
wetted
patts
High Pressure Hose
Bypass Hose
PrESiUre Washer (including
fttings)
waled)
Capacity
Maximum
Working
Flow
Model
800-701
11
HP
B
'
gs
&
lfis
Stratton
6
quarts
(5.7
liter)
2500
psi
(172
bar)
4.5
gpm
(17
Ipm)
3/4'
garden hose
(0
213
Ib
(97
kg)
46'
1168mm)
26'
660mm
30'
kmmi
16O'F
V°C)
AcrylonMle
Synthetic yarn
Anodized aluminum, Aluminum or bronze
This warranty does not cover. and Graw shall not
by faulty installation. misapplication. abrasion, corrosion. inadequate or impmper maintenance.
negligence. accident.