Page 1
Instructions -- Parts List
Hydra--CleanR 4043, 16 HP Engine
Hydra--Cleanr 4043
Pressure Washer
P/N 800707, Series B
4000 psi (27.6 MPa, 276 bar) Operating Pressure
4300 psi (29.6 MPa, 296 bar) maximum Working Pressure
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
See page 2 for T able of Contents.
308532S
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440- 1441
Copyright 2002, Graco Inc. is registered to I.S. EN ISO 9001
6811B
Page 2
Table of Contents
Warning Symbol
Warnings 2......................................
Component Identification and Function 4............
Setup 5.........................................
Operation 6.....................................
Troubleshooting 10...............................
Pump Service 11................................
Parts List 14.....................................
Accessories 20..................................
Technical Data 21................................
Warranty 22.....................................
Graco Phone Number 22..........................
WARNING
SKIN INJECTION HAZARD
Spray from gun, leaks or ruptured components can inject fluid into your body and cause serious injury.
Fluid splashed in eyes or on skin can also cause serious injury.
D Fluid injected into skin may look like just a cut, but it is a serious injury. Get immediate surgical
treatment.
D Do not point gun at anyone or at any part of body.
D Do not stop or deflect leaks with hand, body, glove or rag.
WARNING
This symbol alerts you to the possibility of serious
injury or death if you do not follow instructions.
Caution Symbol
CAUTION
This symbol alerts you to the possibility of damage to
or destruction of equipment if you do not follow
instructions.
D Do not put hand or fingers over spray tip.
D Tighten fluid connections before starting equipment.
D Engage gun trigger safety whenever spraying is stopped.
D Follow Pressure Relief Procedure on page 6 if spray tip clogs and before cleaning, checking or
servicing equipment.
D Repair or replace worn or damaged parts immediately.
D Check hoses, tubes, and coupling daily. Do not repair high pressure couplings: replace entire hose.
Fluid hoses must have spring guards on both ends to prevent kinks and rupture.
3085322
Page 3
WARNING
HAZARDOUS FLUIDS
Improper handling of hazardous fluids can cause serious injury, even death, due to splashing in eyes,
ingestion or bodily contamination.
D Know specific hazards of fluid being used.
D Store hazardous fluids in approved containers. Dispose of hazardous fluids per local, state and
national guidelines.
D Wear protective eyewear, gloves, clothing, and respirator as recommended by fluid manufacturer.
FUEL HAZARD
The fuel used in this unit is combustible and when spilled on a hot surface can ignite and cause a fire.
D Do not fill fuel tank while engine is running or hot.
EXHAUST HAZARD
The exhaust contains poisonous carbon monoxide which is colorless and odorless.
D Do not operate this equipment in a closed building.
EQUIPMENT MISUSE HAZARD
Misuse of pressure washer or accessories may cause them to rupture and result in fluid injection,
splashing in eyes or on skin, or other serious injury.
D Do not alter or modify this equipment. Use only genuine Graco parts and accessories.
D Do not exceed maximum working pressure of any component or accessory in system.
D Do not use any chemicals that are incompatible with wetted parts as stated in Technical Data.
D Do not alter throttle setting.
308532 3
Page 4
Component Identification and Function
Typical Installation -- Pressure Washer
A
G
M
D
Fig. 1
B
L
K
E
H
C
6811B
F
J
06812
A Engine 16 horsepower, operates pump assembly
B Pump Assembly Pressurizes fluid to be sprayed through spray gun
C Filter Screens out debris and other material between supply connection and
pump.
D Water Supply Connection Water supply connection for pump
E High Pressure Hose Connection Hose and spray gun connection
F Spray Gun High pressure spray gun with gun safety latch
G Spray Tip Variety of spray tips depending on job needs
H Spray Gun Safety Latch Prevents accidental triggering of spray gun
J Spray Hose 50 ft (15 m), 3/8 in. ID, grounded hose with hose bend restrictors on
both ends
K Unloader Relieves fluid pressure when open
L Unloader Bypass Hose Provides bypass loop when unloader valve is open
M Hose Rack Provides storage for spray hose
3085324
Page 5
Setup
Check for Shipping Damage
Check the unit for any damage that may have occurred
in shipping. Notify the carrier immediately if there is
any damage.
Set Up
Charge the battery. Be sure the battery connections
are correct and secure. Connect the fuel line to the
engine using the quick coupler provided. Squeeze the
priming bulb 3 to 5 times. 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.
CAUTION
Up to 100 ft (30 m) of high pressure hose may
be used. Longer hoses may affect sprayer performance, and chemical injector performance, if used.
Install the appropriate spray tip on the wand. See
Installing and Changing Spray Tips. If you are using a
sandblaster kit, see its separate manual for installation
instructions.
Connect to Water Supply
CAUTION
Before attaching to the water supply, check your
local plumbing code regarding cross--connection to
the water supply. Use a backflow preventer if
required by local code.
Do not exceed 160_F(70_C) inlet water tempera-
ture.
Connect a hose with at least a 3/4 inch (19 mm) ID
from the water supply to the unit’s 3/4 inch garden
hose inlet. The supply hose should not be more than
50 ft (15 m) long.
NOTE: The water source at the unit must have a
minimum flow rate equal to that of the unit (see
Technical Data, inside back cover).
308532 5
Page 6
Operation
Pressure Relief Procedure
WARNING
SKIN INJECTION HAZARD
System pressure must be manually
relieved to prevent system from starting
or spraying accidentally. Fluid under high
pressure can be injected through skin and cause
serious injury. To reduce risk of injury from injection, splashing fluid, or moving parts, follow Pres-
sure Relief Procedure whenever you:
D are instructed to relieve pressure,
D stop spraying for more than 10 minutes,
D check or service system equipment,
D install or clean spray nozzle.
1. Engage trigger safety latch.
2. Turn sprayer off.
3. Remove ignition cable from spark plug.
4. Remove siphon tube from water supply.
NOTE: This pressure washer is equipped with a
low--oil sensor that shuts the engine off if the oil
level falls below a certain level. If the unit stops
unexpectedly, check both the oil and the fuel
levels. Check the oil level each time the unit is
refueled.
2. Check fuel level.
WARNING
FIRE HAZARD
Do not refuel a hot engine. Refueling a
hot engine could cause a fire. Use only
fresh, clean regular or unleaded gaso-
line. Close fuel shutoff valve during refueling.
3. Turn on the water supply.
CAUTION
Never run unit dry. Costly damage to pump will
result. Always be sure water supply is sufficient
before operating.
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
ignition cables are pushed firmly onto the spark
plugs. Put the ignition shutoff switch in the “on”
position and the throttle in the “run” position.
5. Disengage trigger safety latch and trigger gun to
relieve pressure. Engage trigger safety latch.
6. If spray tip or hose is completely clogged, or
pressure has not been fully relieved after following
steps above: Disengage trigger safety latch and
trigger gun to relieve pressure. Wrap rag around
hose end coupling and VERY SLOWLY loosen
coupling to relieve pressure gradually, then loosen
completely. Now clear tip or hose.
Startup
1. Check oil levels.
D Engine: Add SAE 30 or 10W--30 weight deter-
gent oil as necessary.
D Pump: Add SAE 20 or 30 weight non--deterg-
ent oil.
6. Start the engine.
NOTE: For easier starting, have one person start the
pressure washer while another person triggers
the spray gun.
If the engine is cold, completely close the engine
choke. Press the start button. In cool 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
partially closed. Start the engine as described in the
preceding paragraph. When the engine starts, be
sure to open the choke completely.
7. ALWAYS engage the gun’s trigger safety latch
whenever you stop spraying, even for a moment,
to reduce the risk of fluid injection or splashing in
the eyes or on the skin if the gun is bumped or
triggered accidentally.
8. ALWAYS observe the following CAUTIONS to
avoid costly damage to the pressure washer.
3085326
Page 7
Operation
CAUTION
Pressure washer is equipped with a thermal relief
valve. If pressure washer is operated without
spraying for an extended period (approximately 10
minutes) the valve will expel hot water.
Do not operate pressure washer with inlet water
screen removed. Keep screen clean. Screen keeps
abrasive sediment out of pump, Abrasive sediment
can clog pump or damage cylinders.
Do not pump caustic materials; such materials may
corrode pump components.
9. See the chemical injector or sandblaster kit manual for detailed cleaning information if these accessories are used.
Trigger Safety Latch
WARNING
04612
TRIGGER SAFETY LATCH SHOWN ENGAGED
Figure 2a
To reduce risk of serious bodily injury, including
fluid injection, splashing in eyes or on skin, always
engage trigger safety latch when spraying is
stopped, even for a moment. In engaged position,
trigger safety latch prevents gun from being triggered accidentally by hand or if dropped or
bumped. Be sure to push down latch fully to engage it. If latch not fully engaged, gun can accidentally trigger. See Figures 2a and 2b.
TRIGGER SAFETY LATCH SHOWN
Figure 2b
DISENGAGED
04612
308532 7
Page 8
Operation
Installing and Changing Spray Tips
WARNING
To reduce risk of serious bodily injury, including
fluid injection or splashing in eyes or onto skin, use
extreme caution when changing spray tips. always
follow procedure below.
1. Follow the Pressure Relief Procedure.
CAUTION
To avoid blowing o-ring out of quick coupler, due to
high pressure in system, never operate pressure
washer without tip securely mounted in quick
coupler.
2. Point the gun and wand away from yourself and
anyone else.
3. Without holding your hand over the spray tip (A),
pull back the quick coupler ring (B). Remove the
old tip and/or install a new one, and then release
the ring. See Figure 3.
4. Be sure the tip is secure before starting to spray
again.
5. Tip holding holes are provided on the chassis.
04929
B
A
Figure 3
3085328
Page 9
Shutdown, Flushing, and Storage
CAUTION
Do not expose pressure washer to freezing temperatures or allow water to freeze in pressure
washer components. If water freezes in the pressure washer, thaw it in a warm room before you try
to start it. Do not pour hot water on or into the
pump; it may crack the ceramic plungers!
D Do not store unit outside where it will be exposed to
rain, dirt or adverse weather conditions.
D Before you store the pressure washer overnight or
transport it, disconnect the water supply, and turn
off the fuel supply valve.
D After each use, wipe all surfaces of the pressure
washer with a clean, damp cloth.
Engine:
1. Run engine until gas is gone or stabilize the fuel
and run it through the fuel system and carburetor.
Maintenance
Observing regular maintenance intervals helps ensure
that you get maximum performance and life from the
pressure washer.
There is a break--in period for the engine and pump. After
changing the oil in these components following their
respective break--in periods, the interval between
required changes is longer.
If the unit is operating in dusty conditions, these
maintenance checks should be made more often.
WARNING
To reduce risk of serious bodily injury, including
fluid injection, splashing in eyes or on skin or injury
from moving parts, always follow Pressure Relief
Procedure on page 6 before proceeding.
2. Drain water out of pressure washer hose.
3. Turn fuel system to OFF position.
Pump:
4. Attach one end of a 4 or 5--foot section of hose to
pump inlet and other end in an antifreeze solution
approximately 1--foot off the ground.
NOTE: An anti--freeze flush kit, P/N 802327, is
available to make flushing easier.
5. Pull pull--cord on engine until antifreeze comes out
of pump outlet.
Storage Location:
6. Store pressure washer in garage, basement or
other area where it is protected from freezing
temperatures.
D After each use, wipe all surfaces of the pressure
washer with a clean, damp cloth.
D Perform the appropriate maintenance. See Mainte-
nance Chart.
Interval
Daily
After first 5
hours of
operation
Each 25 hours
of operation
After first 50
hours of
operation
Each 100 hours
of operation
or 3 months
Each 500 hours
of operation
or 6 months
What to do
Clean water inlet screen and
filter. Check engine and pump oil
levels. Fill as necessary. Check
gasoline level. Fill as necessary.
Change engine break--in oil.
Drain oil when warm. Use SAE
30 or 10W--30 detergent oil.
Clean and remove air cleaner
foam. Wash with water and
detergent. Dry thoroughly. Rub
with oil and squeeze to distribute
oil.
Change pump break--in oil. Use
SAE 20 or 30 non--detergent oil
or genuine CATr pump oil.
Clean or replace paper air
cleaner cartridge. Tap gently to
remove dirt. Change engine oil.
Use SAE 30 or 10W--30
detergent oil.
Change pump oil. Use SAE 20
or 30 non--detergent oil or
genuine CATr pump oil.
308532 9
Page 10
Troubleshooting
WARNING
To reduce risk of serious injury, including fluid injection and splashing in eyes, or on skin, always follow Pressure Relief Procedure on page 6 before proceeding.
Problem Cause Solution
Engine will not start or
ishardtostart
Engine misses or
lacks power
Low pressure and/or
pump runs rough
Water leakage from
under pump manifold
Water in pump Humid air condensing inside crankcase.
Frequent or
premature failure of
the packings
Strong surging at the
inlet and low pressure
on the discharge side
No gasoline in fuel tank or carburetor.
Low oil level.
Start/Stop switch in Stop position.
Water in gasoline or old fuel.
Loose or wrong battery connection.
Battery not properly charged.
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.
Incorrect ignition timing.
Worn or wrong size tip.
Inlet filter clogged.
Worn packings, abrasives in water or natural
wear.
Inadequate water supply.
Belt slippage.
Fouled or dirty inlet or discharge valves. Even
a small particle can cause the valve to stick.
Restricted inlet.
Worn inlet or discharge valves.
Leaking high pressure hose.
Worn packings. Install new packings. See PUMP SERVICE.
Worn packings.
Oil seals leaking.
Scored, damaged or worn plungers.
Abrasive material in the fluid being pumped.
Inlet water temperature too high.
Overpressurizing pump.
Excessive pressure due to partially plugged or
damaged tip.
Pump running too long without spraying.
Running pump dry.
Foreign particles in the inlet or discharge
valve or worn inlet and/or discharge valves.
Fill the tank with gasoline, open fuel shut off valve.
Check fuel line and carburetor.
Add to proper level.
Move switch to start position.
Drain fuel tank and carburetor. Use new fuel and
dry spark plug.
Check and tighten battery connections.
Check electrolyte level of cells, recharge battery.
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.
Time engine.
Replace with tip of proper size.
Clean. Check more frequently.
Check filter. Replace packings. See PUMP
SERVICE.
Check water flow rate to pump.
Tighten or replace; use correct belts and replace
both at same time.
Clean inlet and discharge valve assemblies. Check
filter.
Check garden hose, may be collapsed or kinked.
Replace worn valves.
Replace high pressure hose.
Change oil as specified in MAINTENANCE.
Install new packings. See PUMP SERVICE.
Install new oil seals. See PUMP SERVICE.
Install new plungers. See PUMP SERVICE.
Install proper filtration on pump inlet plumbing.
Check water temperature; may not exceed 160_F.
Do not modify any factory--set adjustments. See
EQUIPMENT MISUSE HAZARD.
Clean or replace tip. See Installing and Changing
Spray Tips.
Never run pump more than 10 minutes without
spraying.
Do not run pump without water.
Clean or replace valves. See PUMP SERVICE.
30853210
Page 11
Pump Service
Servicing the Valves
1. Remove the hex valve plug.
2. Examine the o--ring under the plug for cuts or
distortion and replace if worn. Lubricate new o--ring
before installing.
3. Grasp valve retainer by tab at the top with pliers and
remove from valve chamber. Valve parts usually
separate during removal.
Note: A special tool will be needed to remove the seat
from the manifold. A reverse pliers or a
standard vise grip and a 1/4” x 3” bolt to fit I.D. of
seat inserted under the edge of the seat, will pry
the valve seat out easily.
4. Examine all valve parts for wear and replace with
preassembled valve assembly in service kit
containing retainer, spring, valve, valve seat, o--ring,
and back--up ring.
5. Grasp new valve assembly by tab at top with pliers,
immerse in oil and push into valve chamber. Be
certain valve assembly is square in valve chamber.
6. Apply Loctite 242 to valve plug, thread into manifold
port and torque per chart.
Note: Corrosion Resistant models require the coil
spring installed in the Valve Plug.
Servicing the Pumping Section
Disassembly:
1. Remove thefour (4)hex nuts or two (2) bolts from the
manifold (varies with model).
2. Rotate crankshaft by hand to start separation of
manifold from crankcase. Support the underside of
the manifold and tap lightly with a mallet to remove
the manifold assembly.
3. Removeoil pan and slide out seal retainer with 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.
Reassembly:
1. Carefully examine each ceramic plunger for scoring
or cracks, replace if worn and slip onto plunger rod.
Note: Ceramic plunger can only be installed one
direction (front to back). Do not force onto rod.
2. Examine plunger retainer and stud and replace if
worn.
Note: Thread stud into plunger retainer.
3. Examine o--ring, back--up ring and gasket on plunger
retainer and replace if worn or cut. Lubricate o--ring
for ease of installation and to avoid damaging
o--rings.
Note: First install gasket, then back--up ring and
o--ring.
4. Thread plunger retainer and stud assembly into
plunger rod. Exercise caution not to over torque.
5. Saturate new oil wick by soaking in oil, place in seal
retainer and slip retainer over ceramic plunger.
6. Replace oil pan.
7. Turn shaft by hand to line up plungers so end
plungers are parallel.
CAUTION
Keep manifold properly aligned with ceramic
plungers when removing to avoid damage to
either plungers or seals.
8. Carefully slip manifold onto plungers, keeping
manifold level, and tap with mallet to bring manifold
flush with crankcase.
9. Replace washers and nuts or bolts and torque per
chart.
308532 11
Page 12
Pump Service
Servicing the Seals and V--Packings
Disassembly:
1. Remove the manifold as described.
2. With crankcase side of manifold facing up, unscrew
the seal case from the manifold using a special key
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 tools.
5. High Pressure Seal Models: The high pressure
seal is generally easily removed from the manifold
without any tools. If extremely worn a reverse pliers
may be used.
6. V--Packing Models: The female adapter, two
v--packings and male adapter are easily removed
from manifold without tools. If extremely worn a
reverse pliers may be used.
Reassembly:
3. Examine seal case o--ring and replace if worn.
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.
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. Reinstall snap ring. Be certain snap ring is a tight fit.
Replace if it can be easily turned.
4. Replace manifold on pump as described and torque
per chart.
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.
V--Packing Models:
1. Lubricate high pressure packing area in manifold.
2. Insert male adapter with notches down and “v” side
up.
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 worn.
Lubricate new o--ring before installing.
6. Thread seal case into manifold and tighten with key
wrench.
High Pressure Seal Models:
1. Lubricate seal area in manifold.
2. Carefully square seal into position by hand with the
metal grooved side up.
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
Plunger
Retainer
Manifold M8 x 1.25
Val ve
Covers
Thread Tool Size Torque
M5 1 1 mm hex 80 in. lbs.
13 mm hex
M10 x 1.25
M10
— 24 mm
17 mm hex
17 mm hex
27 mm
125 in. lbs.
217 in. lbs.
217 in. lbs.
75 ft. lbs.
75 ft. lbs.
30853212
Page 13
Notes
308532 13
Page 14
SHEET 2
39
37b
45
Pressure Washer -- Parts
57
62
106
107
56
37h
(REF)
48
6
51
40
37h
37g
-+
1
2
63
56
19
47
46
45
49
37
(REF)
3
100
50
4
6
21f
24
21b
21h
29
22
56
81
33
34
2
120
31
2
56
26
28
2
25
21c
21e
35
36
113
30
5
105
21d
64
55
15
18
59
45
58
56
78
54
17
52
--
56
45
16
12
56
57
57
56
56
58
103
102
2
5
105
+
59
11
10
13
18
61
9
44a, 44h
44b
14
41
7
8
44c
44d
44e
44f
44g
43
42
21g
21a
ti12860a
30853214
Page 15
Pressure Washer -- Parts
Model 800707, Series B
Ref.
No. Part No. Description Qty.
1 108868 CLAMP, wire 1
2 100214 WASHER, lock 5/16 4
3 803889 BELT, drive 2
4 803943 SHEAVE, engine 1
5 100023 WASHER, flat 5/16 4
6 118241 SCREW, flange, hex hd 5
7 803534 LABEL, belt guard 1
8 803926 BELT GUARD 1
9 803525 BOLT, battery 2
10 804282 BRACKET, battery 1
11 801972 PAD, battery (size as required) AR
12 801550 WHEEL & TIRE ASSEMBLY 2
13 100696 WASHER, flat 1/2 2
14 801020 NUT, lock 1/2--13 2
15 800676 CHASSIS 1
16 801556 AXLE 1
17 800678 BRACKET, rail stiffener 1
18 801546 SCREW, cap, hex hd, 3/8-- 16 x 1 --1/4 4
19 108842 SCREW, cap, hex hd 1
21 800160 FRONT LEG ASSEMBLY 1
(includes 21a thru 21h)
21a 801531 . SCREW, Cap, Hex hd, 3/8--16 x 7 1
21b 100132 . WASHER, flat 1
21c 101566 . NUT, lock 1
21d 801537 . LEG, front 1
21e 801506 . BOOT 1
21f 801504 . BUMPER, rubber 1
21g 801505 . RETAINER, spring 1
21h 801593 . SPRING 1
22 803906 LABEL, model 4043 1
23 800652 FUEL TANK ASSY (includes: 23a --23f) 1
24 803925 HANDLE 1
25 803298 SCREW, cap, hex hd,5/16-- 18 x 3--1/2 1
26 189919 PLATE, designation 1
27 290342 LABEL, artwork (not shown) AR
28 802016 BRACKET, rail stiffener 1
29 801522 SCREW, cap, hex hd 2
30 804500 LABEL, chassis 1
31 801012 GROMMET, rubber 5
33 805543 TIP ASSEMBLY, 0004 (0° red) 1
34 805544 TIP ASSEMBLY, 1504 (15° yellow) 1
35 805545 TIP ASSEMBLY, 2504 (25° green) 1
36 805546 TIP ASSEMBLY, 4004 (40° white) 1
37 800665 ENGINE ASSY (partial breakdown, 1
items 37a thru 37h)
37a 290013 . LABEL, warning (not shown) 1
37b 803884 . ENGINE, 16 HP, Briggs & 1
Stratton, Vanguard OHC
37c 802908 . CONNECTOR, fuel 1
37g 801945 . CABLE, battery, 12” long 1
37h 801946 . CABLE, battery, 24” long 1
39 803515 LABEL, artwork 1
40 803516 COVER, unloader 1
41 804474 HOSE, high pressure 3/8 x 50’ 1
42 801569 QUICK COUPLER, female, sst 3/8 1
43 801568 QUICK COUPLER, male 3/8 2
44 800429 GUN & WAND ASSEMBLY 1
(includes 44a thru 44g)
Ref.
No. Part No. Description Qty.
44a 801009 . QUICK COUPLER, female 1/4 1
44b 801957 . SLEEVE, safety, 18 in. 1
44c 802851 . HANDLE, tee 1
44d 804470 . WAND, 32” 1
44e 804589 . GUN, spray (see manual 308511) 1
44f 162485 . NIPPLE, hex 3/8 1
44g 801569 . QUICK COUPLER, female 3/8,sst 1
44h 154594 . O--ring 1
45 111040 NUT, lock 5/16--18 13
46 804356 INSULATOR, vibration 1
47 804495 LABEL, belt guard 1
48 804376 SCREW, hex hd 1
49 803944 SHEAVE, pump 1
50 801898 HUB, engine 1
51 801135 HUB, pump 1
52 801959 TERMINAL PROTECTOR, black 1
55 115753 BATTERY, 12 volt, 30 Amp 1
56 100527 WASHER, flat 1/4 5
57 100016 WASHER, lock 1/4 3
58 100015 NUT, hex 1/4-- 20 4
59 100022 BOLT, carriage 1/4--20 x 1 2
61 801958 TERMINAL PROTECTOR, red 1
62 803531 BASEPLATE, belt guard 1
63 802127 BOLT, hex hd 5/16--18 x 1.75 2
64 107069 BRACKET, battery 1
78 802275 BOLT, hex hd 5/16--18 x 1.5 2
80 803517 LABEL, prevent freezing 1
81 803508 PUMP ASSEMBLY (see page 18) 1
82 801526 BRACKET, mounting 2
83 801523 NIPPLE, 1/2--14 x 2.0 1
84 801622 CROSS, 1/2 npt 1
85 801111 NU T, adapter 1
86 801110 ADAPTER, garden hose 1
87 804051 FILTER, inlet 1
88 402278 PLUG, threaded, sq hd 1
89 803141 HOSE, by --pass 1
90 159239 FITTING, nipple 1
91 802534 ADAPTER, 1/2 npt x 1/2 npsm 1
92 800427 VALVE, unloader, 4000 psi 1
97 116461 VALVE, thermal relief 1
100 801137 KEY, square, 1/4 x 2.0 1
103 100450 BOLT, hex hd, 5/16--18 x 1.0 4
104 101754 PLUG, pipe 1
105 100133 WASHER, lock 3/8 4
106 100086 WASHER, plain 1
107 108050 WASHER, lock, spring 1
109* 804388 INJECTOR, chemical 1
110 804275 TUBE, chemical injector 1
111 801683 STRAINER, chemical injector 1
113 805634 TIP, chemical injector 1
114 100081 ADAPTER 1
120 802305 SCREW, cap, socket hd 4
308532 15
Page 16
Pressure Washer -- Parts
89
92
91
109*
114
43
110
82
80
90
81
86
85
97
2
120
84
83
104
*Note: Chemical Injector Repair Kit -- 244351
Hydra--Clean 4043 Pressure Washer (Sheet 2 of 2)
88
87
111
7544A
30853216
Page 17
Notes
308532 17
Page 18
Pump Assembly -- Parts
30
29
31
23
21
27
22
28
24
26
25
12
33
13
32
22
35
14
20
15
12
34
c
a
d
19
39
40
14
41
15
18
17
16
9b
9
9a
e
4
a
b
c
e
f
42
g
d
1
d
c
b
a
4e
9a
9b
54
53
51
52
3
2
04608
30853218
Page 19
Model 803508, Series A
Pump Assembly -- Parts
Ref.
No. Part No. Description Qty.
1 803504 MANIFOLD 1
2 801468 SCREW, cap, hex hd 8
3 801469 WASHER, lock 8
4 801472 KIT, Valve (includes: 4a--4e) 1
4a O-RING 6
4b SEAT, valve 6
4c PLATE, valve 6
4d SPRING 6
4e GUIDE, valve 6
9 803509 KIT, valve cap (includes 9a--9b) 1
9a O--RING 6
9b CAP, valve 6
12 803283 SCREW, cap, socket hd 8
13 803506 COVER, crankcase 1
14 802500 O--RING, crankcase cover 2
15 803324 BEARING, tapered roller 2
16 801473 KIT, seal, oil -- Qty 3 1
17 803286 BUSHING, piston 1
18 803501 CRANKCASE 1
19 801475 DIPSTICK 1
20 803144 GASKET, cover 1
21 803287 CRANKSHAFT 1
22 803288 RING, retaining 6
23 802794 KEY 1
24 803289 PIN, wrist 3
25 803503 GUIDE, piston 3
26 804484 ROD, connecting 3
27 803292 SCREW, cap, socket hd 5
28 803507 COVER, crankcase 1
Ref.
No. Part No. Description Qty.
29 802345 GAUGE, sight 1
30 802793 PLUG, oil drain 1
31 801488 O-RING 1
32 803294 SCREW, cap, socket hd 6
33 801652 WASHER, lock 6
34 803510 KIT, repair, plunger
(includes 34a, 34c, 34d) 1
34a RING, back up 3
34c O--RING 3
34d SCREW, piston 3
35 803502 PLUNGER, ceramic 3
39 803505 COVER, crankcase 1
40 803296 SHIM 2
41 802511 KIT, seal, oil -- Qty 2 1
42 803512 KIT, Packing and Retainer
(includes 42a-- 42g) 1
42a O-RING 1
42b RETAINER 1
42c RETAINER, seal 1
42d RING, head 1
42e RING 1
42f PACKING, restop 1
42g V--PACKING 1
43 803511 KIT, Packing Only,
(includes 42c, 42f and 42G) 1
51 801482 PLUG, hex 1
52 801483 WASHER, flat 1
53 801484 PLUG, hex 1
54 801485 WASHER, flat 1
308532 19
Page 20
Accessories
Downstream Chemical Injector Kit 804387
For injecting harsh cleaning chemicals downstream
from the pump. 800649 is stainless steel construction.
Upstream Chemical Injector Kit 800257
For injecting mild cleaning chemicals upstream into the
pump.
Pressure Gauge Kit 248744
For viewing pump pressure.
Water Sandblasting Kit 800120
For abrasive cleaning of stubborn dirt and paint. Requires a spray tip which is not included in kit (3540
uses 803107, 4043 uses 803107).
30853220
Page 21
Technical Data
Engine (4 cycle, air--cooled) 16 HP Briggs & Stratton OHV
Battery 12 Volt, 30 AMP
Gasoline Tank Capacity 2.25 Gallon (8.5 Liter)
Water Pump Maximum Working
Pressure
Water Pump Maximum Flow 4.25 gpm (16 lpm)
Inlet Hose Connection 3/4” garden hose (f)
Weight 255 lbs (116 kg)
Dimensions
Length
Width
Height
Maximum Inlet Water
Temperature
Wetted Parts
High Pressure Hose
Bypass Hose
Pressure Washer
(including fittings)
250 CCA
4000 psi (276 bar)
49” (1245 mm)
30” (762 mm)
30” (762 mm)
160_F(70_C)
Acrylonitrile and Buna--N cover and tube
Synthetic yarn and EPDM
Anodized aluminum, Aluminum or bronze alloys, Brass Copper, Nylon--PTFE composite,
PTFE, Ceramic, Buna--N, Cotton phenolic, 303, 304, and 316 Stainless steel, Polymide--12
thermoplastic, Carbon steel, Zinc with or without yellow chromate plate
Model 800707
308532 21
Page 22
Graco Warranty
Graco warrants all equipment listed in this manual which is manufactured by Graco and bearing its name to be free from defects in
material and workmanship on the date of sale to the original purchaser for use. With the exception of any special extended or limited
warranty published by Graco, Graco will, for a period of twelve months from the date ofsale, repair or replaceany part of the equipment
determined by Graco to be defective. This warranty applies only when the equipment is installed, operated and maintained in
accordance with Graco’s written recommendations.
This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by
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 of
Graco equipment with structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture,
installation, operation or maintenance or 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 Graco distributor for
verification of the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The
equipmentwill be returnedtotheoriginal purchaser transportation prepaid. If inspection of the equipment does not discloseanydefect
in material or workmanship, repairs will be made at a reasonable c harge, which charges may include the costs of parts, labor, and
transportation.
Graco’ssoleobligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no other
remedy (including,but not limited to, incidentalor consequentialdamages forlost profits, lost sales, injury to person or property, or any
other incidental or consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the
date of sale.
GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE IN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS OR COMPONENTS SOLD BUT
NOT MANUFACTURED BY GRACO. These items sold, but not manufactured by Graco (such as electric motors, gas engines,
switches,hose,etc.), are subject to the warranty, ifany, of theirmanufacturer. Graco willprovide purchaser with reasonable assistance
in making any claim for breach of these warranties.
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment
hereunder, or the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract,
breach of warranty, the negligence of Graco, or otherwise.
FOR GRACO CANADA CUSTOMERS
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 avoir convenu que la rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures
judiciaires exécutés, donnés ou intentés à la suite de ou en rapport, directement ou indirectement, avec les procédures concernées.
ADDITIONAL WARRANTY COVERAGE
Graco does provide extended warranty and wear warranty for products described in the “Graco Contractor Equipment Warranty
Program.”
Graco Phone Number
TO PLACE AN ORDER, contact your Graco distributor, or call this number to identify the distributor closest to you:
1--800--690--2894 Toll Free
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.
This manual contains English. MM 308532
International Offices: Belgium, China, Japan, Korea
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440- 1441
Graco Headquarters: Minneapolis
www.graco.com
3/1991 Rev. 09/2008
30853222
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