Graco Inc Pressure Washer 308532S User Manual

Instructions -- Parts List  
Hydra--CleanR 4043, 16 HP Engine  
Hydra--Cleanr 4043  
Pressure Washer  
308532S  
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 Table of Contents.  
6811B  
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441  
Copyright 2002, Graco Inc. is registered to I.S. EN ISO 9001  
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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
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Component Identification and Function  
Typical Installation -- Pressure Washer  
G
A
B
F
L
K
E
M
H
J
D
C
06812  
6811B  
Fig. 1  
A
B
C
Engine  
16 horsepower, operates pump assembly  
Pump Assembly  
Filter  
Pressurizes fluid to be sprayed through spray gun  
Screens out debris and other material between supply connection and  
pump.  
D
E
F
Water Supply Connection  
High Pressure Hose Connection  
Spray Gun  
Water supply connection for pump  
Hose and spray gun connection  
High pressure spray gun with gun safety latch  
Variety of spray tips depending on job needs  
Prevents accidental triggering of spray gun  
G
H
J
Spray Tip  
Spray Gun Safety Latch  
Spray Hose  
50 ft (15 m), 3/8 in. ID, grounded hose with hose bend restrictors on  
both ends  
K
L
Unloader  
Relieves fluid pressure when open  
Unloader Bypass Hose  
Hose Rack  
Provides bypass loop when unloader valve is open  
Provides storage for spray hose  
M
4
308532  
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Setup  
Check for Shipping Damage  
Connect to Water Supply  
Check the unit for any damage that may have occurred  
in shipping. Notify the carrier immediately if there is  
any damage.  
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.  
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 down-  
stream chemical injector, install it between the pump  
unloader and the high pressure hose, using the quick  
couplers provided.  
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.  
Connect the high pressure hose between the pump  
outlet and the gun inlet. Both of these connections are  
made with quick couplers.  
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).  
CAUTION  
Up to 100 ft (30 m) of high pressure hose may  
be used. Longer hoses may affect sprayer perform-  
ance, 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.  
308532  
5
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Operation  
NOTE: This pressure washer is equipped with a  
Pressure Relief Procedure  
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.  
WARNING  
SKIN INJECTION HAZARD  
System pressure must be manually  
2. Check fuel level.  
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 injec-  
tion, splashing fluid, or moving parts, follow Pres-  
sure Relief Procedure whenever you:  
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-  
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.  
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.  
1. Engage trigger safety latch.  
2. Turn sprayer off.  
4. Trigger the gun until water sprays from the tip  
indicating that the air is purged from the system.  
3. Remove ignition cable from spark plug.  
4. Remove siphon tube from water supply.  
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.  
6. Start the engine.  
5. Disengage trigger safety latch and trigger gun to  
relieve pressure. Engage trigger safety latch.  
NOTE: For easier starting, have one person start the  
pressure washer while another person triggers  
the spray gun.  
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.  
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.  
Startup  
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.  
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.  
8. ALWAYS observe the following CAUTIONS to  
avoid costly damage to the pressure washer.  
6
308532  
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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.  
04612  
Do not pump caustic materials; such materials may  
corrode pump components.  
TRIGGER SAFETY LATCH SHOWN ENGAGED  
Figure 2a  
9. See the chemical injector or sandblaster kit manu-  
al for detailed cleaning information if these acces-  
sories are used.  
Trigger Safety Latch  
WARNING  
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 trig-  
gered accidentally by hand or if dropped or  
bumped. Be sure to push down latch fully to en-  
gage it. If latch not fully engaged, gun can acciden-  
tally trigger. See Figures 2a and 2b.  
04612  
TRIGGER SAFETY LATCH SHOWN  
DISENGAGED  
Figure 2b  
308532  
7
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Operation  
2. Point the gun and wand away from yourself and  
Installing and Changing Spray Tips  
anyone else.  
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.  
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.  
1. Follow the Pressure Relief Procedure.  
5. Tip holding holes are provided on the chassis.  
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.  
04929  
B
A
Figure 3  
8
308532  
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Shutdown, Flushing, and Storage  
Maintenance  
CAUTION  
Do not expose pressure washer to freezing tem-  
Observing regular maintenance intervals helps ensure  
that you get maximum performance and life from the  
pressure washer.  
peratures or allow water to freeze in pressure  
washer components. If water freezes in the pres-  
sure 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!  
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.  
D Do not store unit outside where it will be exposed to  
rain, dirt or adverse weather conditions.  
If the unit is operating in dusty conditions, these  
maintenance checks should be made more often.  
D Before you store the pressure washer overnight or  
transport it, disconnect the water supply, and turn  
off the fuel supply valve.  
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.  
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.  
2. Drain water out of pressure washer hose.  
3. Turn fuel system to OFF position.  
Pump:  
Interval  
What to do  
Daily  
Clean water inlet screen and  
filter. Check engine and pump oil  
levels. Fill as necessary. Check  
gasoline level. Fill as necessary.  
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.  
After first 5  
hours of  
operation  
Change engine break--in oil.  
Drain oil when warm. Use SAE  
30 or 10W--30 detergent oil.  
Each 25 hours  
of operation  
Clean and remove air cleaner  
foam. Wash with water and  
detergent. Dry thoroughly. Rub  
with oil and squeeze to distribute  
oil.  
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.  
After first 50  
hours of  
operation  
Change pump break--in oil. Use  
SAE 20 or 30 non--detergent oil  
or genuine CATr pump oil.  
Storage Location:  
6. Store pressure washer in garage, basement or  
other area where it is protected from freezing  
temperatures.  
Each 100 hours Clean or replace paper air  
of operation  
or 3 months  
cleaner cartridge. Tap gently to  
remove dirt. Change engine oil.  
Use SAE 30 or 10W--30  
detergent oil.  
D After each use, wipe all surfaces of the pressure  
Each 500 hours Change pump oil. Use SAE 20  
washer with a clean, damp cloth.  
of operation  
or 6 months  
or 30 non--detergent oil or  
genuine CATr pump oil.  
D Perform the appropriate maintenance. See Mainte-  
nance Chart.  
308532  
9
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Troubleshooting  
WARNING  
To reduce risk of serious injury, including fluid injection and splashing in eyes, or on skin, always follow Pres-  
sure Relief Procedure on page 6 before proceeding.  
Problem  
Cause  
Solution  
Engine will not start or No gasoline in fuel tank or carburetor.  
is hard to start  
Fill the tank with gasoline, open fuel shut off valve.  
Check fuel line and carburetor.  
Low oil level.  
Add to proper level.  
Start/Stop switch in Stop position.  
Water in gasoline or old fuel.  
Move switch to start position.  
Drain fuel tank and carburetor. Use new fuel and  
dry spark plug.  
Loose or wrong battery connection.  
Battery not properly charged.  
Check and tighten battery connections.  
Check electrolyte level of cells, recharge battery.  
Choked improperly. Flooded engine.  
Open choke and crank engine several times to  
clear out gas.  
Dirty air cleaner filter.  
Remove and clean.  
Spark plug dirty, wrong gap or wrong type.  
Spray gun closed.  
Clean, adjust the gap or replace.  
Trigger spray gun.  
Engine misses or  
lacks power  
Partially plugged air cleaner filter.  
Spark plug dirty, wrong gap or wrong type.  
Incorrect ignition timing.  
Remove and clean.  
Clean, adjust the gap or replace.  
Time engine.  
Low pressure and/or  
pump runs rough  
Worn or wrong size tip.  
Inlet filter clogged.  
Replace with tip of proper size.  
Clean. Check more frequently.  
Worn packings, abrasives in water or natural  
wear.  
Check filter. Replace packings. See PUMP  
SERVICE.  
Inadequate water supply.  
Belt slippage.  
Check water flow rate to pump.  
Tighten or replace; use correct belts and replace  
both at same time.  
Fouled or dirty inlet or discharge valves. Even Clean inlet and discharge valve assemblies. Check  
a small particle can cause the valve to stick.  
filter.  
Restricted inlet.  
Worn inlet or discharge valves.  
Leaking high pressure hose.  
Check garden hose, may be collapsed or kinked.  
Replace worn valves.  
Replace high pressure hose.  
Water leakage from  
under pump manifold  
Worn packings.  
Install new packings. See PUMP SERVICE.  
Water in pump  
Humid air condensing inside crankcase.  
Worn packings.  
Oil seals leaking.  
Change oil as specified in MAINTENANCE.  
Install new packings. See PUMP SERVICE.  
Install new oil seals. See PUMP SERVICE.  
Frequent or  
premature failure of  
the packings  
Scored, damaged or worn plungers.  
Abrasive material in the fluid being pumped.  
Inlet water temperature too high.  
Overpressurizing pump.  
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.  
Excessive pressure due to partially plugged or  
damaged tip.  
Clean or replace tip. See Installing and Changing  
Spray Tips.  
Pump running too long without spraying.  
Never run pump more than 10 minutes without  
spraying.  
Running pump dry.  
Do not run pump without water.  
Strong surging at the  
Foreign particles in the inlet or discharge  
Clean or replace valves. See PUMP SERVICE.  
inlet and low pressure valve or worn inlet and/or discharge valves.  
on the discharge side  
10 308532  
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Pump Service  
3. Remove oil pan and slide out seal retainer withwicks.  
Servicing the Valves  
4. Using a wrench, loosen the plunger retainer. Grasp  
ceramic plunger and push toward crankcase until  
plunger retainer pops out.  
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.  
5. Remove plunger retainer with copper gasket,  
back--up Ring and o--ring.  
3. Grasp valve retainer by tab at the top with pliers and  
remove from valve chamber. Valve parts usually  
separate during removal.  
6. Remove plunger from plunger rod.  
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 tofit I.D. of  
seat inserted under the edge of the seat, will pry  
the valve seat out easily.  
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.  
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.  
2. Examine plunger retainer and stud and replace if  
worn.  
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.  
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.  
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.  
Note:  
First install gasket, then back--up ring and  
o--ring.  
Servicing the Pumping Section  
4. Thread plunger retainer and stud assembly into  
plunger rod. Exercise caution not to over torque.  
Disassembly:  
1. Remove the four (4) hex nuts or two (2) bolts from the  
manifold (varies with model).  
5. Saturate new oil wick by soaking in oil, place in seal  
retainer and slip retainer over ceramic plunger.  
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.  
6. Replace oil pan.  
7. Turn shaft by hand to line up plungers so end  
plungers are parallel.  
8. Carefully slip manifold onto plungers, keeping  
manifold level, and tap with mallet to bring manifold  
flush with crankcase.  
CAUTION  
Keep manifold properly aligned with ceramic  
plungers when removing to avoid damage to  
either plungers or seals.  
9. Replace washers and nuts or bolts and torque per  
chart.  
308532 11  
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Pump Service  
3. Examine seal case o--ring and replace if worn.  
Servicing the Seals and V--Packings  
Lubricate new o--ring before installing.  
Disassembly:  
4. Next secure high pressure seal into position by  
threading seal case into manifold. Tighten seal case  
with key wrench.  
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.  
Low Pressure Seal--All Models:  
1. Examine seal for wear or broken spring and lace if  
necessary.  
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.  
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.  
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.  
4. Replace manifold on pump as described and torque  
per chart.  
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.  
Servicing Crankcase Section  
1. While manifold, plungers and seal retainers are  
removed, examine crankcase seals for wear.  
Reassembly:  
2. Check oil level and for evidence of water in oil.  
V--Packing Models:  
3. Rotate crankshaft by hand to feel for smooth bearing  
movement.  
1. Lubricate high pressure packing area in manifold.  
4. Examine crankshaft oil seal externally for drying,  
cracking or leaking.  
2. Insert male adapter with notches down and “v” side  
up.  
5. Consult factory or your local distributor if crankcase  
service is evidenced.  
3. Lubricate v--packings and install one--at--a--time with  
grooved side down.  
Torque Chart  
4. Next install female adapter with grooved side down.  
Pump Part Thread  
Tool Size Torque  
11 mm hex 80 in. lbs.  
5. Examine seal case o--ring and replace if worn.  
Lubricate new o--ring before installing.  
Plunger  
Retainer  
M5  
6. Thread seal case into manifold and tighten with key  
wrench.  
Manifold  
M8 x 1.25 13 mm hex 125 in. lbs.  
M10 x 1.25 17 mm hex 217 in. lbs.  
High Pressure Seal Models:  
M10  
17 mm hex 217 in. lbs.  
1. Lubricate seal area in manifold.  
Valve  
Covers  
24 mm  
75 ft. lbs.  
2. Carefully square seal into position by hand with the  
metal grooved side up.  
27 mm  
75 ft. lbs.  
12 308532  
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Notes  
308532 13  
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Pressure Washer -- Parts  
37b  
37  
(REF)  
57  
106  
107  
37g  
--  
+
45  
1
37h  
2
19  
47  
(REF)  
62  
56  
45  
63  
56  
48  
46  
3
37h  
6
100  
50  
4
6
51  
39  
SHEET 2  
49  
40  
81  
58  
57  
102  
52  
7
56  
59  
33  
34  
35  
36  
54  
58  
2
8
--  
64  
55  
57  
5
2
120  
56  
105  
18  
61  
113  
45  
29  
+
15  
31  
56  
59  
11  
2
9
30  
44a, 44h  
44b  
56  
78  
10  
103  
56  
44c  
44d  
28  
26  
56  
56  
45  
44e  
24  
2
16  
44f  
25  
12  
5
105  
44g  
17  
18  
13  
21c  
22  
43  
14  
21h  
42  
21d  
21f  
21b  
21e  
41  
21g  
ti12860a  
21a  
14 308532  
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Pressure Washer -- Parts  
Model 800707, Series B  
Ref.  
No.  
1
2
3
4
5
6
7
Part No.  
108868  
100214  
803889  
803943  
100023  
118241  
803534  
803926  
803525  
804282  
801972  
801550  
100696  
801020  
800676  
801556  
800678  
801546  
108842  
800160  
Description  
CLAMP, wire  
WASHER, lock 5/16  
BELT, drive  
SHEAVE, engine  
WASHER, flat 5/16  
SCREW, flange, hex hd  
LABEL, belt guard  
BELT GUARD  
Qty.  
1
4
2
1
4
5
1
1
2
1
AR  
2
2
2
1
1
1
Ref.  
No.  
44a  
44b  
44c  
44d  
44e  
44f  
44g  
44h  
45  
46  
47  
48  
49  
50  
51  
52  
55  
56  
57  
58  
59  
61  
62  
63  
64  
78  
80  
81  
82  
83  
84  
85  
86  
87  
88  
89  
90  
91  
92  
97  
100  
103  
104  
105  
106  
107  
109*  
110  
111  
113  
114  
120  
Part No.  
801009  
801957  
802851  
804470  
804589  
162485  
801569  
154594  
111040  
804356  
804495  
804376  
803944  
801898  
801135  
801959  
115753  
100527  
100016  
100015  
100022  
801958  
803531  
802127  
107069  
802275  
803517  
803508  
801526  
801523  
801622  
801111  
801110  
804051  
402278  
803141  
159239  
802534  
800427  
116461  
801137  
100450  
101754  
100133  
100086  
108050  
804388  
804275  
801683  
805634  
100081  
802305  
Description  
Qty.  
1
1
1
1
1
1
1
1
13  
1
1
1
1
1
1
1
1
5
3
4
2
1
1
2
1
2
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
4
1
4
1
1
1
1
1
1
1
4
. QUICK COUPLER, female 1/4  
. SLEEVE, safety, 18 in.  
. HANDLE, tee  
. WAND, 32”  
. GUN, spray (see manual 308511)  
. NIPPLE, hex 3/8  
. QUICK COUPLER, female 3/8,sst  
. O--ring  
NUT, lock 5/16--18  
INSULATOR, vibration  
LABEL, belt guard  
SCREW, hex hd  
SHEAVE, pump  
HUB, engine  
HUB, pump  
TERMINAL PROTECTOR, black  
BATTERY, 12 volt, 30 Amp  
WASHER, flat 1/4  
WASHER, lock 1/4  
NUT, hex 1/4--20  
BOLT, carriage 1/4--20 x 1  
TERMINAL PROTECTOR, red  
BASEPLATE, belt guard  
BOLT, hex hd 5/16--18 x 1.75  
BRACKET, battery  
BOLT, hex hd 5/16--18 x 1.5  
LABEL, prevent freezing  
PUMP ASSEMBLY (see page 18)  
BRACKET, mounting  
NIPPLE, 1/2--14 x 2.0  
CROSS, 1/2 npt  
NUT, adapter  
ADAPTER, garden hose  
FILTER, inlet  
PLUG, threaded, sq hd  
HOSE, by--pass  
8
9
BOLT, battery  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
21  
BRACKET, battery  
PAD, battery (size as required)  
WHEEL & TIRE ASSEMBLY  
WASHER, flat 1/2  
NUT, lock 1/2--13  
CHASSIS  
AXLE  
BRACKET, rail stiffener  
SCREW, cap, hex hd, 3/8--16 x 1--1/4  
SCREW, cap, hex hd  
FRONT LEG ASSEMBLY  
(includes 21a thru 21h)  
. SCREW, Cap, Hex hd, 3/8--16 x 7  
. WASHER, flat  
. NUT, lock  
. LEG, front  
. BOOT  
4
1
1
21a  
21b  
21c  
21d  
21e  
21f  
21g  
21h  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
33  
34  
35  
801531  
100132  
101566  
801537  
801506  
801504  
801505  
801593  
803906  
800652  
803925  
803298  
189919  
290342  
802016  
801522  
804500  
801012  
805543  
805544  
805545  
805546  
800665  
1
1
1
1
1
1
1
1
1
. BUMPER, rubber  
. RETAINER, spring  
. SPRING  
LABEL, model 4043  
FUEL TANK ASSY (includes: 23a--23f) 1  
HANDLE  
SCREW, cap, hex hd,5/16--18 x 3--1/2 1  
PLATE, designation  
LABEL, artwork (not shown)  
BRACKET, rail stiffener  
SCREW, cap, hex hd  
LABEL, chassis  
GROMMET, rubber  
TIP ASSEMBLY, 0004 (0° red)  
TIP ASSEMBLY, 1504 (15° yellow)  
TIP ASSEMBLY, 2504 (25° green)  
TIP ASSEMBLY, 4004 (40° white)  
ENGINE ASSY (partial breakdown,  
items 37a thru 37h)  
1
1
AR  
1
2
1
5
1
1
1
FITTING, nipple  
ADAPTER, 1/2 npt x 1/2 npsm  
VALVE, unloader, 4000 psi  
VALVE, thermal relief  
KEY, square, 1/4 x 2.0  
BOLT, hex hd, 5/16--18 x 1.0  
PLUG, pipe  
36  
37  
1
1
37a  
37b  
290013  
803884  
. LABEL, warning (not shown)  
. ENGINE, 16 HP, Briggs &  
Stratton, Vanguard OHC  
. CONNECTOR, fuel  
. CABLE, battery, 12” long  
. CABLE, battery, 24” long  
LABEL, artwork  
1
1
WASHER, lock 3/8  
WASHER, plain  
37c  
37g  
37h  
39  
40  
41  
42  
43  
44  
802908  
801945  
801946  
803515  
803516  
804474  
801569  
801568  
800429  
1
1
1
1
1
1
1
2
1
WASHER, lock, spring  
INJECTOR, chemical  
TUBE, chemical injector  
STRAINER, chemical injector  
TIP, chemical injector  
ADAPTER  
COVER, unloader  
HOSE, high pressure 3/8 x 50’  
QUICK COUPLER, female, sst 3/8  
QUICK COUPLER, male 3/8  
GUN & WAND ASSEMBLY  
(includes 44a thru 44g)  
SCREW, cap, socket hd  
308532 15  
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Pressure Washer -- Parts  
43  
92  
109*  
89  
114  
91  
110  
80  
90  
81  
88  
87  
86  
85  
97  
111  
84  
83  
82  
104  
2
120  
*Note: Chemical Injector Repair Kit -- 244351  
7544A  
Hydra -Clean 4043 Pressure Washer (Sheet 2 of 2)  
16 308532  
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Notes  
308532 17  
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Pump Assembly -- Parts  
27  
29  
28  
26  
33  
32  
12  
30  
31  
23  
22  
34  
19  
a
c
25  
24  
d
22  
21  
35  
39  
40  
14  
41  
20  
15  
18  
15  
14  
13  
12  
9b  
9a  
9
e
d
53  
4
54  
17  
c
b
a
16  
a
51  
52  
b
c
e
f
3
g
42  
d
1
2
4e  
9a  
04608  
9b  
18 308532  
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Pump Assembly -- Parts  
Model 803508, Series A  
Ref.  
Ref.  
No.  
Part No.  
Description  
Qty.  
No.  
Part No.  
Description  
Qty.  
1
2
3
4
803504  
801468  
801469  
801472  
4a  
4b  
4c  
4d  
4e  
803509  
9a  
9b  
803283  
803506  
802500  
803324  
801473  
803286  
803501  
801475  
803144  
803287  
803288  
802794  
803289  
803503  
804484  
803292  
803507  
MANIFOLD  
1
8
8
1
6
6
6
6
6
1
6
6
8
1
2
2
1
1
1
1
1
1
6
1
3
3
3
5
1
29  
30  
31  
32  
33  
34  
802345  
802793  
801488  
803294  
801652  
803510  
GAUGE, sight  
PLUG, oil drain  
O-RING  
SCREW, cap, socket hd  
WASHER, lock  
KIT, repair, plunger  
(includes 34a, 34c, 34d)  
RING, back up  
O--RING  
SCREW, piston  
PLUNGER, ceramic  
COVER, crankcase  
SHIM  
KIT, seal, oil -- Qty 2  
KIT, Packing and Retainer  
(includes 42a-- 42g)  
O-RING  
RETAINER  
RETAINER, seal  
RING, head  
RING  
PACKING, restop  
V--PACKING  
KIT, Packing Only,  
(includes 42c, 42f and 42G)  
PLUG, hex  
WASHER, flat  
PLUG, hex  
1
1
1
6
6
SCREW, cap, hex hd  
WASHER, lock  
KIT, Valve (includes: 4a--4e)  
O-RING  
SEAT, valve  
PLATE, valve  
SPRING  
GUIDE, valve  
KIT, valve cap (includes 9a--9b)  
O--RING  
CAP, valve  
SCREW, cap, socket hd  
COVER, crankcase  
O--RING, crankcase cover  
BEARING, tapered roller  
KIT, seal, oil -- Qty 3  
BUSHING, piston  
CRANKCASE  
1
3
3
3
3
1
2
1
34a  
34c  
34d  
803502  
803505  
803296  
802511  
803512  
9
35  
39  
40  
41  
42  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
1
1
1
1
1
1
1
1
42a  
42b  
42c  
42d  
42e  
42f  
DIPSTICK  
GASKET, cover  
CRANKSHAFT  
RING, retaining  
KEY  
PIN, wrist  
GUIDE, piston  
ROD, connecting  
SCREW, cap, socket hd  
COVER, crankcase  
42g  
803511  
43  
1
1
1
1
1
51  
52  
53  
54  
801482  
801483  
801484  
801485  
WASHER, flat  
308532 19  
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Accessories  
Downstream Chemical Injector Kit 804387  
Pressure Gauge Kit 248744  
For injecting harsh cleaning chemicals downstream  
from the pump. 800649 is stainless steel construction.  
For viewing pump pressure.  
Water Sandblasting Kit 800120  
Upstream Chemical Injector Kit 800257  
For abrasive cleaning of stubborn dirt and paint. Re-  
quires a spray tip which is not included in kit (3540  
uses 803107, 4043 uses 803107).  
For injecting mild cleaning chemicals upstream into the  
pump.  
20 308532  
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Technical Data  
Model 800707  
Engine (4 cycle, air--cooled)  
Battery  
16 HP Briggs & Stratton OHV  
12 Volt, 30 AMP  
250 CCA  
Gasoline Tank Capacity  
2.25 Gallon (8.5 Liter)  
4000 psi (276 bar)  
Water Pump Maximum Working  
Pressure  
Water Pump Maximum Flow  
Inlet Hose Connection  
Weight  
4.25 gpm (16 lpm)  
3/4” garden hose (f)  
255 lbs (116 kg)  
Dimensions  
Length  
49” (1245 mm)  
30” (762 mm)  
30” (762 mm)  
Width  
Height  
Maximum Inlet Water  
Temperature  
160_F (70_C)  
Wetted Parts  
High Pressure Hose  
Bypass Hose  
Acrylonitrile and Buna--N cover and tube  
Synthetic yarn and EPDM  
Pressure Washer  
(including fittings)  
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  
308532 21  
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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 of sale, repair or replace any 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  
equipment will be returned to the original purchaser transportation prepaid. If inspection of the equipment does notdisclose anydefect  
in material or workmanship, repairs will be made at a reasonable charge, which charges may include the costs of parts, labor, and  
transportation.  
Graco’s sole obligation 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, incidental or consequential damages for lost 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, if any,of theirmanufacturer. Graco willprovide purchaserwith reasonableassistance  
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  
Graco Headquarters: Minneapolis  
International Offices: Belgium, China, Japan, Korea  
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441  
3/1991 Rev. 09/2008  
22 308532  
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