INSTRUCTIONS–PARTS LIST
308524
Rev. K
This manual contains important
warnings and information.
READ AND KEEP FOR REFERENCE.
INSTRUCTIONS
Belt-Drive Pressure Washers
2545
Model 800629, Series B
2500 psi (17.2 MPa, 172 bar) Operating Pressure
2900 psi (20 MPa, 200 bar) Maximum Working Pressure
3040
Model 800632, Series B
3000 psi (20.6 MPa, 206 bar) Operating Pressure
3400 psi (23.4 MPa, 234 bar) Maximum Working Pressure
3235
Model 800634, Series B
3200 psi (22.1 MPa, 221 bar) Operating Pressure
3600 psi (24.8 MPa, 248 bar) Maximum Working Pressure
04607
3040 Pressure Washer
Model 800632
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
ECOPYRIGHT 1995, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001
WARNING
WARNING
MOVING PARTS HAZARD
Moving parts, such as the drive belt, can pinch or amputate fingers.
D Keep clear of moving parts when you start or operate this equipment.
D Do not operate the pressure washer without all guards and interlocks installed and functioning.
HAZARDOUS FLUIDS
Improper handling of hazardous fluids can cause serious injury or death from splashing in the
eyes, ingestion, or bodily contamination.
D Know the specific hazards of the fluid being used.
D Store hazardous fluids in approved containers. Dispose of hazardous fluids per local, state, and
national guidelines.
D Wear protective eye wear, gloves, clothing, and respirator as recommended by the fluid and
solvent manufacturer.
FUEL HAZARD
The fuel used in this pressure washer is combustible. When spilled on a hot surface, it can ignite and
cause a fire.
Do not fill the fuel tank while the engine is running or hot.
EXHAUST HAZARD
The exhaust contains poisonous carbon monoxide, which is colorless and odorless.
Do not operate this equipment in a closed building.
EQUIPMENT MISUSE HAZARD
Misuse of the pressure washer or accessories may cause them to rupture and result in fluid injection,
splashing in the eyes or on the skin, or other serious injury.
D Do not alter or modify any part or factory-set adjustment of this equipment.
D Do not exceed the maximum working pressure of any component or accessory in the system.
D Do not use any chemicals that are incompatible with the wetted parts as stated in the Technical
Data on page 15.
D Do not alter the throttle setting.
308524
3
Setup
high-pressure hose
connection
gun
hose
hose
rack
inlet water
connection
3/4” garden
hose
TI1262A
Check for Shipping Damage
Connect to Water Supply
Check the pressure washer for shipping damage. If
anything is damaged, notify the carrier immediately.
CAUTION
Before you connect to the water supply, check
your local plumbing code regarding cross
connection to the water supply. Backflow
Preventer 801133 is available to prevent
backflow of contaminated water into the fresh
water supply. Install it upstream from the pump.
Set Up
Connect the high-pressure hose between the pump
outlet and the gun inlet. Both of these connections are
made with quick couplers.
If inlet water pressure is over 60 psi (414 kPa,
4.1 bar) Regulating Water Valve 800258 must be
installed at the garden hose connection.
CAUTION
Up to 100 ft (30 m) of high-pressure hose may
be used. Longer hoses may affect sprayer and
chemical injector performance.
Do not exceed 160_ F (70_ C) inlet water
temperature.
Connect a hose with at least a 3/4-in. (19 mm) ID from
the water supply to the 3/4-in. garden hose inlet. The
supply hose should not be more than 50 ft (15 m) long
Install the appropriate spray tip on the wand. See
Installing and Changing Spray Tips on page 6. If
you use a sandblaster kit, see its separate manual for
installation instructions.
NOTE: The water source must have a minimum flow
rate equal to that of the pressure washer. See
Technical Data on page 15.
4
308524
Pressure Relief Procedure
1. Engage the trigger safety latch.
WARNING
INJECTION HAZARD
2. Turn off the pressure washer, and remove the
ignition cable from the spark plug.
The system pressure must be manually
relieved to prevent the system from
3. Shut off the water supply.
4. Disengage the trigger safety latch, trigger the gun
to relieve the pressure, and engage the trigger
safety latch.
spraying accidentally. To reduce the risk
of an injury from accidental spray from the gun,
splashing fluid, or moving parts, follow the
Pressure Relief Procedure when you
If you suspect that the spray tip or hose is clogged or
that pressure has not been fully relieved after following
the steps above: Disengage the trigger safety latch,
and trigger the gun to relieve pressure. Wrap a rag
around the hose end coupling, and VERY SLOWLY
loosen the coupling to relieve pressure gradually. Then
loosen it completely. Then clear the tip or hose.
D Are instructed to relieve the pressure
D Stop spraying for more than 10 minutes
D Check or service any of the system equipment
D Install or clean the spray nozzle
Operation
Startup
Always use this startup procedure to ensure that the
pressure washer is started safely and properly.
3. Turn on the water supply.
D Always engage the gun trigger safety latch when
you stop spraying even for a moment. This reduces
the risk of fluid injection or splashing in the eyes or
on the skin if the gun is bumped or triggered
accidentally.
CAUTION
Never run the pressure washer dry. Costly
damage to the pump will result. Always be sure
the water supply is completely turned on before
you run the pressure washer.
D Always observe the CAUTIONS in this section to
avoid costly damage to the pressure washer.
D If you use the Sandblaster Kit, see the Sandblaster
4. Trigger the gun until water sprays from the tip
indicating that the air is purged from the system.
Kit manual for detailed cleaning information.
D See manual 308513 for chemical injector operation
and service.
5. Open the fuel shutoff valve. Be sure the spark plug
ignition cable is pushed firmly onto the spark plug.
Put the engine switch in the ON position, and put
the throttle in the RUN position.
1. Check the oil level.
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 engine stops
unexpectedly, check the oil and the fuel levels. Check
the oil level each time you refuel.
CAUTION
Do not allow the pressure washer to idle for more
than 10 minutes. Doing so may cause the
recirculating water to overheat and seriously
damage the pump. Turn 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 operate the pressure washer
with the inlet water screen removed. This screen
helps keep abrasive sediment, which could clog
the pump or damage the pump cylinders, out of the
pump. Keep this screen clean. Do not pump
caustic materials; such materials could corrode the
pump components.
2. Check the 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 gasoline. Close
the fuel shutoff valve during refueling.
308524
5
Operation
6. Pull the starter rope to start the engine. Brace one
Spray Tip Number
Spray Pattern Fan Angle
0_ blaster (red)
15_ (yellow)
foot on the pressure washer cart, and pull the
00XXX
starter rope out quickly.
15XXX
25XXX
25_ (green)
CAUTION
40XXX
40_ (white)
Do not allow the starter rope to snap back against
the engine. Let the rope recoil gently to prevent
damage to the recoil mechanism.
NOTE: The chemical injector tip is brass and has a
large opening and a black plastic cap.
NOTE: For easier starting, have one person start
the pressure washer while another person triggers
the gun.
Relieve the pressure.
See page 5.
1.
If the engine is cold, start the engine with the
choke completely closed. In cool weather, you
might have to let the engine run with the choke
closed for the first 10 to 30 seconds. In warm
weather, open the choke completely as soon as
the engine starts.
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
current tip and/or install a different one. Then push
back the ring. See Fig. 2.
If the engine is warm, start the engine with the
choke completely open or partially closed. When
the engine starts, open the choke completely.
4. Pull on the tip to be sure it is secure before you
spray again.
Trigger Safety Latch
CAUTION
To avoid blowing the O-ring out of the quick coupler
due to the high pressure in the system, never
operate the pressure washer without a tip securely
mounted in the quick coupler.
WARNING
To reduce the risk of serious bodily injury, including
fluid injection or splashing in the eyes or on the
skin, always engage the trigger safety latch when
you stop spraying even for a moment. In the
engaged position, the trigger safety latch prevents
the gun from being triggered accidentally by hand
or if it is dropped or bumped. Be sure the latch is
pushed fully down, or it will not prevent the gun
from being triggered. See Fig. 1.
B
A
Trigger Safety Latch
04929
Fig. 2
0412B
engaged
disengaged
Fig. 1
Installing and Changing Spray Tips
Spray tips have 4- or 5-digit numbers on them. The
first two digits are the spray angle. Select the spray tip
appropriate for your application. Tip holding holes are
provided on the chassis.
6
308524
Operation
Water Sandblasting
Maintenance
Water Sandblasting Kit 244766 is available for
abrasive cleaning of stubborn dirt and paint. The kit
requires a sandblasting tip, sold separately as follows:
Observing regular maintenance intervals helps ensure
that you get maximum performance and life from the
pressure washer.
D 2545 pressure washer uses sandblasting
There is a break-in period for the engine and pump.
After you change the oil in these components following
their respective break-in periods, the interval between
required changes is longer.
tip 805325.
D 3040 pressure washer uses sandblasting
tip 805317.
D 3235 pressure washer uses sandblasting
If the pressure washer is operated in dusty conditions,
these maintenance checks should be made more
often.
tip 805313.
Shutdown, Flushing, and Storage
Maintenance Chart
CAUTION
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!
Relieve the pressure
(see page 5) before you
proceed with maintenance.
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.
D If the pressure washer will be exposed to freezing
temperatures, drain all water out of the pump. If it
must be stored in freezing temperatures, flush it
with a 50% antifreeze solution, and relieve the
pressure. Flush the pressure washer before you
use it again to remove the antifreeze.
After first
5 hours of
operation
Change engine break-in oil. Drain
oil when warm. Use SAE 30 or
10W–30 detergent oil.
After every
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.
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
After first
50 hours of
operation
Change pump break-in oil. Use
SAE 20 or 30 non-detergent oil.
washer with a clean, damp cloth.
D Perform the appropriate maintenance. See
Maintenance Chart at right.
After every
100 hours of
operation, or
Clean or replace paper air cleaner
cartridge. Tap gently to remove
dirt. Change engine oil. Use SAE
every 3 months 30 or 10W–30 detergent oil.
After every
Change pump oil. Use SAE 20 or
30 non-detergent oil.
500 hours of
operation, or
every 6 months
308524
7
Pump Service
Repair kits are available. See Pump Repair Kits on page 13. For the best results, use all parts in the kits.
Pumping Section
Relieve the pressure
(see page 5) before you
proceed with service.
1. Remove the eight capscrews and lockwashers
from the manifold using a 13 mm wrench.
NOTES:
2. Carefully separate the manifold from the
crankcase.
D The following metric wrenches are needed:
10 mm, 13 mm, and 30 mm.
NOTE: You might have to tap the manifold lightly with
a soft mallet to loosen it.
D There are two tool kits to aid in servicing the pump.
Kit 800298 is used to ease installation of packings.
Kit 800271 includes the items in 800298 and tools
to aid in the removal of packing retainers.
CAUTION
To avoid damage to the plunger or seals, keep the
manifold properly aligned with the ceramic plungers
when you remove it.
Valves
NOTE: For a set of six valves, order 801472.
3. Carefully examine each plunger for any scoring or
cracking, and replace as necessary.
1. Remove the hex plug from the manifold using a
30 mm wrench.
Servicing the Plungers
2. Examine the o-ring under the hex plug and replace
it if it is cut or distorted.
NOTE: Plunger repair kit 801474 is available to
replace retainers, o-rings, washers, and backup rings
for three cylinders.
3. Remove the valve assembly from the cavity; the
assembly may come apart.
1. Loosen the plunger retaining screw five to six turns
using a 10 mm wrench. Push the plunger towards
the crankcase to separate the plunger and
retaining screw.
4. Install the new valve. Install the o-ring and hex
plug; torque to 75 ft-lb (103 NSm).
NOTE: Retorque the plug after 5 hours of operation.
2. Remove the screw from the plunger, and examine
the o-ring, backup ring, and copper bearing/gasket
washer. Replace these parts, if necessary.
3. Remove the plunger and flinger from the plunger
shaft. Clean, examine, and replace parts as
necessary.
4. Inspect the plunger shaft for oil leakage from the
crankcase. If leaking is obvious, replace the oil
seals. Otherwise, DO NOT remove these seals
because they cannot be reused. Oil Seal Kit
801473 is available for replacing the seals.
5. Lightly grease the flinger (and the oil seal if it is
being replaced), and replace on the plunger shaft.
Then install the plunger.
8
308524
Pump Service
6. Lightly grease the retaining screw and the outer
Servicing the V-Packings
end of the plunger. Place the washer, o-ring, and
backup ring around the screw, and install the
screw through the plunger. Torque to 14.4 ft-lb
(19.5 NSm).
NOTE: There are two types of packing kits:
801486 contains packings only.
801487 contains packings, rings, and retainers.
NOTE: If you plan to replace the packings, See
Servicing the V-Packings at right.
1. Remove the manifold as outlined in Pumping
Section on page 8.
7. Lubricate the outside of each plunger. Slide the
manifold onto the crankcase, being careful not to
damage the seals.
2. Carefully pull the packing retainer (43) from the
manifold. Examine the o-ring (42), and replace if
cut or damaged.
8. Install the capscrews and washers finger tight.
Torque the screws to 21.7 ft-lb (29 NSm) following
the tightening pattern in Fig. 3. Uneven tightening
can cause the manifold to bind or jam.
3. Remove intermediate ring (46). Pull out restop
v-packing (47). Remove the second V-packing (44)
and ring head (45).
4. Inspect all parts, and replace as necessary.
5. Thoroughly clean the packing cavities, and
examine for debris or damage.
5
8
1
3
4
2
7
6
6. Lightly grease packing cavities, and replace packings
in following order: ring head (45), V-packing (44),
restop packing (47), intermediate ring (46). Install
o-ring (42) in retainer groove and then install retainer
ring (43) with low pressure seal (57).
Fig. 3
CAUTION
Install the parts in the proper order and facing the
proper direction. Improperly installed parts will
cause a malfunction.
7. Reassemble the manifold as instructed in
Servicing the Plungers on page 8.
308524
9
Pressure Washer Parts
Model 800629, Series B: 2545 Pressure Washer
Model 800632, Series B: 3040 Pressure Washer
Model 800634, Series B: 3235 Pressure Washer
38
37
21
87
79
96
41
74
93
36
71
55
84
73
88
48
84
83
78
70
42
34
43
67
44
39
81
67
77
80
29
30
31
32
33
76
82
89
94
95
69
45
4
7
49
55
67
84
28
25
26
46
47
9
51
67
6
84
9
5
84
85
15
55
2
19
84
86
22
84
13
55
2
18h
14
86
15
18a
10
11
18c
12
23
18e
18g
1
17
18f
18b
18d
18
04604B
10
308524
Pressure Washer Parts
Ref.
No.
Ref.
No.
Part No. Description
Qty.
Part No. Description
Qty.
1
2
4
5
6
7
9
244450
GUN & WAND ASSEMBLY
WASHER, flat; 3/8
BUMPER
1
4
1
1
1
1
3
2
2
2
1
1
4
Model 800634
100023
801539
803926
803534
800676
100214
29 805543
30 805544
31 805545
32 805546
33 805634
34
803297
803737
36 802127
0004 (blasting)
1504 (15_)
1
1
1
1
1
1
1
1
4
BELT GUARD
2504 (25_)
LABEL, ID
CHASSIS
4004 (40_)
TIP ASSY, (chemical injector)
PUMP (page 18)
Model 800629
WASHER, lock; 5/16
WHEEL, pneumatic
WASHER, flat; 1/2
NUT, lock; 1/2–13
AXLE
BRACKET, rail stiffener
SCREW, cap, hex hd.
3/8–16 x 1–1/4
LABEL, ID
10 801550
11 801612
12 801020
13 801556
14 800678
15 801546
Models 800632 and 800634
SCREW, cap, hex hd.
5/16–18 x 1–3/4
37 802363
38 290013
39 803158
41 804356
42 804376
LABEL, Caution
1
1
1
1
1
LABEL, Warning
ENGINE, 11 hp, Honda OHV
BUMPER, rubber
SCREW, cap, hex hd;
5/16–18 x 3/8
BELT, drive
HUB, engine
SHEAVE, engine
Models 800629 and 800634
Model 800632
17
1
1
1
1
1
803303
803161
803904
18 800160
Model 800629
Model 800632
Model 800634
43 801285
44 801898
45
801911
803941
46 801135
47
801004
803890
48 804495
49 803531
51 801522
2
1
1
1
1
1
1
1
1
1
1
2
FRONT LEG ASSEMBLY
(includes 18a to 18h)
@ LEG, Front
18a 801537
18b 801506
18c 801593
18d 801505
18e 801504
18f 801531
18g 100132
18h 101566
19 803925
21 804498
22 803298
1
1
1
1
1
@ BOOT
@ SPRING
HUB, pump
@ RETAINER, spring
SHEAVE, pump
@ BUMPER, rubber
Model 800629
@ SCREW, cap, hex hd; 3/8–16 x 7 1
Models 800632 and 800634
LABEL, Warning
PLATE, back
SCREW, cap, hex hd;
5/16–18 x 6–1/2
NUT, lock; 5/16–18
SCREW, flange, hex hd;
5/16–18 x 3/4
BRACKET, pump
NIPPLE
UNLOADER ASSEMBLIES
Model 800629 (2500 psi)
Model 800632 (3000 psi)
Model 800634 (3200 psi)
NIPPLE
@ WASHER, flat
@ NUT, lock; 3/8–16
HANDLE
1
1
1
1
1
QUICK COUPLER, 3/8 male
SCREW, cap, hex hd.
5/16–18 x 3–1/2
HOSE ASSEMBLY
BRACKET, rail stiffener
LABEL, Warning
GROMMET, rubber
TIP ASSEMBLIES
Model 800629
55 111040
67 110963
13
5
23 244449
25 802016
26 804500
28 801012
29 to 32
1
1
1
5
69 801526
70 156849
71
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
4
20
4
4
1
1
1
1
4
4
1
800323
800324
800325
29 805555
30 805556
31 805557
32 805558
00055 (blasting)
15055 (15_)
1
1
1
1
73 803142
74 803141
76 801111
77 801110
78 804051
79 402278
80 801622
81 801523
82 116461
83 804382
84 100527
85 100450
86 100133
87* 804388
88 804275
89 801683
93 162024
94 802304
95 802305
96 801137
25055 (25_)
BYPASS HOSE
40055 (40_)
NUT, garden hose
ADAPTER, garden hose
FILTER
Model 800632
29 805547
30 805548
31 805549
32 805550
00045 (blasting)
15045 (15_)
1
1
1
1
PLUG, plastic
TEE
NIPPLE
VALVE, thermal relief
BUSHING
WASHER, flat; 5/16
BOLT, hex hd; 5/16 x 18 x 1.0
WASHER, lock; 3/8
CHEMICAL INJECTOR
TUBE, chemical injector
STRAINER, chemical injector
COUPLING
WASHER, lock
SCREW, cap, socket head
KEY, square
25045 (25_)
40045 (40_)
* Chemical Injector Repair Kit – 244351
308524
11
Pump Parts
Pump Model 803297 used on 2545 Pressure Washer
Pump Model 803737 used on 3040 and 3235 Pressure Washers
27
28
29
26
33
32
25
12
34
30
35
23
20
31
36
37
56
38
19
18
22
24
22
21
39
31
40
14
41
15
15
14
13
12
10
9
8
7
6
5
4
53
11
54
52
51
17
16
42
3
43
57
2
47
44
46
45
10
Kit 28
04608b
1
11
9
12
308524
Pump Parts
Ref.
Ref.
No. Part No.
Description
Qty
No. Part No.
Description
Qty
1
2
3
4
5
6
7
8
9
801467
801468
801469
KIT 1
KIT 1
KIT 1
KIT 1
KIT 1
KIT 4
MANIFOLD
SCREW, cap, hex hd
WASHER, lock
O-RING
SEAT, valve
PLATE, valve
SPRING
GUIDE, valve
O-RING
CAP
1
8
8
29 802345
30 802793
31 KIT 6
32 803294
33 801652
34 801660
and KIT 6
35 801490
36 KIT 6
37 KIT 6
GAUGE, sight
PLUG, oil drain
O-RING
SCREW, cap, socket hd
WASHER, lock
WASHER, flinger
1
1
6
6
3
PLUNGER, ceramic
RING, backup
WASHER
SCREW, piston
COVER, crankcase
SHIM
SEAL, oil
O-RING
RETAINER, packing
PACKING
RING, head
RING, intermediate
RESTOP, packing
BRACKET, pump
SCREW, cap, socket hd
WASHER, lock
PLUG, hex
WASHER, flat
PLUG, hex
WASHER, flat
LABEL, prevent freezing
SEAL, low pressure
3
10 KIT 4
11 KIT 1
12 803283
13 803284
14 802500
15 803285
16 KIT 2
17 803286
18 802895
19 801475
20 803144
21
VALVE ASSEMBLY (includes 4 to 8)
38 KIT 6
SCREW, cap, socket hd
COVER, crankcase
O-RING, crankcase cover
BEARING, tapered roller
SEAL, oil
BUSHING, piston
CRANKCASE
8
39 803295
40 803296
41 KIT 3
1
2
1
2
2
42 KIT 28
43 KIT 28
44 KIT 8, 28
45 KIT 28
46 KIT 28
47 KIT 28
48 801526
49 802305
50 802304
51 801482
52 801483
53 801484
54 801485
56 803083
57 KIT 28
1
1
1
1
DIPSTICK
GASKET, cover
CRANKSHAFT
Pump 803297
Pump 803737
RING, retaining
KEY
PIN, wrist
GUIDE, piston
ROD, connecting
SCREW, cap, socket hd
COVER, crankcase
2
2
2
1
1
1
1
1
1
803287
803332
1
1
6
1
3
3
1
5
1
22 803288
23 802794
24 803289
25 803290
26 803291
27 803292
28 803293
Pump Repair Kits
Kit Repair Kit Ref.
Kit Repair Kit Ref.
No. Part No. No. Description
Part No.
No. Description
Qty
No.
Qty
1
6
801472
11
VALVE ASSEMBLY
6
801474
Plunger
Repair
31
34
36
37
38
O-RING
3
3
3
3
3
Valve
(includes 4 to 8)
O-RING
WASHER, flinger
RING, backup
WASHER
4
5
6
7
8
6
6
6
6
6
SEAT, valve
PLATE, valve
SPRING
SCREW, piston
8
801486
Packing
44
PACKING
6
GUIDE, valve
2
3
801473
Oil Seal
16
SEAL, oil
SEAL, oil
3
28
801487
Packing
and
42
43
44
45
46
47
57
O-RING
1
1
1
1
1
1
1
RETAINER, ring
PACKING
802511
Crankshaft
Seal
41
2
Retainer
RING, head
RING, intermediate
RESTOP, packing
SEAL, low pressure
4
802306
Valve
Cap
9
10
O-RING
CAP
6
6
308524
13
Troubleshooting
Relieve the pressure (see page 5) before you proceed with troubleshooting.
PROBLEM
CAUSE
SOLUTION
Engine not starting or
hard to start
No gasoline in fuel tank or carburetor
Fill the tank with gasoline, and open fuel shut off valve.
Check fuel line and carburetor.
Low oil
Add oil to proper level.
Start/Stop switch in STOP position
Water in fuel, or old fuel
Move switch to START position.
Drain fuel tank and carburetor. Use new fuel, and make
sure dry spark plug is dry.
Engine flooded or improperly choked
Open choke, and crank engine several times to clear
out gas. Make sure spark plug is dry.
Dirty air cleaner filter
Remove and clean.
Spark plug dirty, wrong gap, or wrong type Clean, adjust the gap, or replace.
Gun not triggered
Trigger gun while starting engine.
Remove and clean.
Engine missing or
lacking power
Partially plugged air cleaner filter
Spark plug dirty, wrong gap, or wrong type Clean, adjust the gap, or replace.
Pressure too low
and/or pump running
roughly
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 on
page 8.
Inadequate water supply
Belts slipping
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
Restricted inlet
Clean inlet and discharge valve assemblies. Check filter.
Check if garden hose is collapsed or kinked.
Replace worn valves. See Pump Service on page 8.
Replace high-pressure hose.
Worn inlet or discharge valves
Leaking high-pressure hose
Water leaking from
Worn packings
Install new packings. See Pump Service on page 8.
under pump manifold
Water in pump oil
Humid air condensing inside crankcase
Worn packings
Change oil as specified in Maintenance on page 7.
Install new packings. See Pump Service on page 8.
Install new oil seals. See Pump Service on page 8.
Oil seals leaking
Packings failing
frequently or
prematurely.
Scored, damaged, or worn plungers
Install new plungers. See Pump Service on page 8.
Abrasive material in the fluid being
pumped
Install proper filtration on pump inlet plumbing.
Inlet water temperature too high
Check water temperature. It should not exceed
160_F (70_C).
Overpressurizing pump
Do not modify any factory-set adjustments. See
EQUIPMENT MISUSE HAZARD on page 3.
Excessive pressure due to partially
plugged or damaged tip
Clean or replace tip. See Installing and Changing
Spray Tips on page 6.
Pump running too long without spraying
Running pump dry
Never run pump more than 10 minutes without spraying.
Do not run pump without water.
Strong surging at inlet, Foreign particles in the inlet or discharge
Clean or replace valves. See Pump Service on
and low pressure on
discharge side
valve, or worn inlet and/or discharge
valves
page 8.
14
308524
Technical Data
2545
3040
3235
Model 800629
Model 800632
Model 800634
Engine
(4 cycle, air cooled)
11 HP Honda OHV
11 HP Honda OHV
11 HP Honda OHV
Gasoline tank capacity
6.9 quarts (6.5 liters)
6.9 quarts (6.5 liters)
6.9 quarts (6.5 liters)
Water pump maximum operating pressure
2500 psi
(17.2 MPa, 172 bar)
3000 psi
(21 MPa, 207 bar)
3200 psi
(22.1 MPa, 221 bar)
Water pump maximum flow
Inlet hose connection
Weight
4.5 gpm (17 lpm)
3/4” garden hose (f)
219 lb (100 kg)
4 gpm (15 lpm)
3/4” garden hose (f)
219 lb (100 kg)
3.5 gpm (13 lpm)
3/4” garden hose (f)
219 lb (100 kg)
Dimensions
Length
46” (1168mm)
30” (762mm)
26” (660mm)
46” (1168mm)
30” (762mm)
26” (660mm)
46” (1168mm)
30” (762mm)
26” (660mm)
Width
Height
Maximum inlet water temperature
160_ F (70_ C)
160_ F (70_ C)
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;
ceramic; Buna–N; cotton phenolic; 303, 304, and 316 stainless steel; polymide–12
thermoplastic; PTFE; carbon steel; zinc plate with or without yellow chromate
308524
15
Graco Standard 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 not disclose any defect
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 their manufacturer. Graco will provide 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 reflect the latest product information available at the time of publication.
Graco reserves the right to make changes at any time without notice.
Sales Offices: Minneapolis
International Offices: Belgium, Korea, Hong Kong, Japan
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
PRINTED IN USA 308524 06/1997, Revised 04/2004
16
308524
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