ASM ALLPRO APG3040H-246800 A Series User manual

309880
Rev. D
INSTRUCTIONS
Manufactured by
Belt–Drive Pressure Washers
INSTRUCTIONS
This manual contains important
warnings and information.
READ AND KEEP FOR REFERENCE.
Models:
APG3040H – 246800, Series A
3000 psi (20.7 MPs, 207 bar) Maximum Working Pressure
APG3540H – 246801, Series A
3500 psi (24.1 MPs, 241 bar) Maximum Working Pressure
ti2723a
APG3040H Pressure
Washer
Model 246800

2 309880
Table of Contents
Warnings 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setup 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pressure Relief Procedure 5. . . . . . . . . . . . . . . . . . . . . . .
Pump Service 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pressure Washer Parts Drawing and List 12. . . . . . . . .
Pump Parts Drawing and List 14. . . . . . . . . . . . . . . . . . .
Troubleshooting 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Data 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ASM Standard Warranty 18. . . . . . . . . . . . . . . . . . . . . . .
Symbols
Warning Symbol
WARNING
This symbol alerts you to the possibility of serious
injury or death if you do not follow the instructions.
Caution Symbol
CAUTION
This symbol alerts you to the possibility of damage to
or destruction of equipment if you do not follow the
instructions.
DDo not point the gun at anyone or at any part of the body.
DFluid injected into the skin may look like just a cut, but it is a serious injury. Get emergency
medical attention.
WARNING
WARNING
INJECTION HAZARD
Spray from the gun, leaks or ruptured components can inject fluid into your body and cause serious
injury. Fluid splashed in the eyes or on the skin can also cause serious injury.
DDo not stop or deflect leaks with hand, body, glove, or rag.
DDo not put your hand or fingers over the spray tip.
DTighten fluid connections before you start this equipment.
DEngage the gun trigger safety when you stop spraying.
DFollow Pressure Relief Procedure on page 5 if the spray tip clogs and before you clean,
check, or service this equipment.
DRepair or replace worn or damaged parts immediately.
DCheck hoses, tubes, and couplings daily. Do not repair high-pressure couplings; you must replace
the entire hose. Fluid hoses must have spring guards on both ends to prevent kinks and rupture.

309880 3
WARNING
MOVING PARTS HAZARD
Moving parts, such as the drive belt, can pinch or amputate fingers.
DKeep clear of moving parts when you start or operate this equipment.
DDo 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.
DKnow the specific hazards of the fluid being used.
DWear protective eye wear, gloves, clothing, and respirator as recommended by the fluid and
solvent manufacturer.
DStore hazardous fluids in approved containers. Dispose of hazardous fluids per local, state, and
national guidelines.
DDo not alter the throttle setting.
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.
DDo not alter or modify any part or factory-set adjustment of this equipment.
DDo not exceed the maximum working pressure of any component or accessory in the system.
DDo not use any chemicals that are incompatible with the wetted parts as stated in the Technical
Data on page 17.
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.
WARNING

4 309880
Setup
ti2723a
high-pressure
hose connection
gun and
hose rack
inlet water
connection
3/4” garden
hose
gun
hose
tip storage
rack
pressure
regulator
engine on/off
switch
chemical
injector
Check for Shipping Damage
Check the pressure washer for shipping damage. If
anything is damaged, notify the carrier immediately.
Set Up
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 and
chemical injector performance.
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.
Connect to Water Supply
CAUTION
Before you connect to the water supply, check
your local plumbing code regarding cross
connection to the water supply. Install a
backflow preventer upstream from pump to
prevent backflow of contaminated water into the
fresh water supply.
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.
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
NOTE: The water source must have a minimum flow
rate equal to that of the pressure washer. See Techni-
cal Data on page 17.

309880 5
Pressure Relief Procedure
INJECTION HAZARD
The system pressure must be manually
relieved to prevent the system from
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
DAre instructed to relieve the pressure
DStop spraying for more than 10 minutes
DCheck or service any of the system equipment
DInstall or clean the spray nozzle
WARNING 1. Engage the trigger safety latch.
2. Turn off the pressure washer, and remove the
ignition cable from the spark plug.
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.
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.
Operation
Startup
Always use this startup procedure to ensure that the
pressure washer is started safely and properly.
DAlways 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 acci-
dentally.
DAlways observe the CAUTIONS in this section to
avoid costly damage to the pressure washer.
DIf you use the Sandblaster Kit, see the Sandblaster
Kit manual for detailed cleaning information.
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 unex-
pectedly, check the oil and the fuel levels. Check the
oil level each time you refuel.
2. Check the fuel level.
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.
WARNING
3. Turn on the water supply.
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.
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 cable is pushed firmly onto the spark plug.
Put the engine switch in the ON position, and put
the throttle in the RUN position.
Do not allow the pressure washer to idle for more
than 10 minutes. Doing so may cause the recir-
culating 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 caus-
tic materials; such materials could corrode the
pump components.
CAUTION

6 309880
Operation
6. Pull the starter rope to start the engine. Brace one
foot on the pressure washer cart, and pull the
starter rope out quickly.
CAUTION
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: For easier starting, have one person start
the pressure washer while another person triggers
the gun.
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.
If the engine is warm, start the engine with the
choke completely open or partially closed. When
the engine starts, open the choke completely.
Trigger Safety Latch
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.
engaged disengaged
Trigger Safety Latch
Fig. 1
0412B
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.
Spray Tip Number Spray Pattern Fan Angle
00XXX 0_blaster (red)
15XXX 15_(yellow)
25XXX 25_(green)
40XXX 40_(white)
NOTE: The chemical injector tip is brass and has a
large opening and a black plastic cap.
1. Relieve the pressure.
See page 5.
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.
4. Pull on the tip to be sure it is secure before you
spray again.
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.
04929
A
B
Fig. 2

309880 7
Operation
Chemical Injector Operation
1. Relieve the pressure.
See page 5.
2. Insert the chemical filter (attached with clear tubing
to the chemical injector) into the container of
chemical.
3. Install the black, large orifice, chemical tip. See
Installing and Changing Spray Tips on page 6.
The large orifice of the chemical top causes a drop in
pressure that activates the chemical injector. Changing
back to a small orifice spray tip de–activates the
chemical injector and produces high pressure for
rinsing. The chemical filter can be left in the chemical
container during high pressure use. To regulate the
flow rate of the chemical, turn the chemical adjustment
knob on the injector. Maximum chemical flow is a full
two turns counterclockwise from the CLOSED (clock-
wise) position.
Water Sandblasting
Water Sandblasting Kit 244766 is available for
abrasive cleaning of stubborn dirt and paint. The kit
requires a sandblasting tip, sold separately as follows:
DAPG3040H pressure washer uses sandblasting
tip 805317.
DAPG3540H pressure washer uses sandblasting
tip 805313.

8 309880
Shutdown, Flushing, and Storage
CAUTION
Do not expose pressure washer to freezing tem-
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!
DDo not store unit outside where it will be exposed to
rain, dirt or adverse weather conditions.
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:
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.
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.
DAfter each use, wipe all surfaces of the pressure
washer with a clean, damp cloth.
DPerform the appropriate maintenance. See Mainte-
nance Chart at right.

309880 9
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 you change the oil in these components following
their respective break-in periods, the interval between
required changes is longer.
If the pressure washer is operated in dusty conditions,
these maintenance checks should be made more
often.
Maintenance Chart
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.
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.
After first
50 hours of
operation
Change pump break-in oil. Use
SAE 30 non-detergent oil.
After every
100 hours of
operation, or
every 3 months
Clean or replace paper air cleaner
cartridge. Tap gently to remove
dirt. Change engine oil. Use SAE
30 or 10W–30 detergent oil.
After every
500 hours of
operation, or
every 6 months
Change pump oil. Use SAE 30
non-detergent oil.

10 309880
Pump Service
Repair kits are available. See Pump Repair Kits on page 15. For the best results, use all parts in the kits.
Relieve the pressure
(see page 5) before you
proceed with service.
NOTES:
DThe following metric wrenches are needed:
10 mm, 13 mm, and 30 mm.
Valves
NOTE: For a set of six valves, order 801472.
1. Remove the hex plug from the manifold using a
30 mm wrench.
2. Examine the o-ring under the hex plug and replace
it if it is cut or distorted.
3. Remove the valve assembly from the cavity; the
assembly may come apart.
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.
Pump Section
1. Remove the eight capscrews and lockwashers
from the manifold using a 13 mm wrench.
2. Carefully separate the manifold from the crank-
case.
NOTE: You might have to tap the manifold lightly with
a soft mallet to loosen it.
CAUTION
To avoid damage to the plunger or seals, keep the
manifold properly aligned with the ceramic plungers
when you remove it.
3. Carefully examine each plunger for any scoring or
cracking, and replace as necessary.
Servicing the Plungers
NOTE: Plunger repair kit 801474 is available to re-
place retainers, o-rings, washers, and backup rings for
three cylinders.
1. Loosen the plunger retaining screw five to six
turns. Push the plunger towards the crankcase to
separate the plunger and retaining screw.
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 neces-
sary.
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.

309880 11
Pump Service
6. Lightly grease the retaining screw and the outer
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: If you plan to replace the packings, See
Servicing the V-Packings at right.
7. Lubricate the outside of each plunger. Slide the
manifold onto the crankcase, being careful not to
damage the seals.
8. Install the capscrews and washers finger tight.
Torque the screws to 22.1 ft-lb (30 NSm) following
the tightening pattern in Fig. 3. Uneven tightening
can cause the manifold to bind or jam.
14
2
3
5
8
7
6
Fig. 3
Servicing the V-Packings
NOTE: There are two types of packing kits:
801486 contains packings only.
801487 contains packings, rings, and retainers.
1. Remove the manifold as outlined in Pump Sec-
tion on page 10.
2. Carefully pull the packing retainer from the mani-
fold. Examine the o-ring, and replace if cut or
damaged.
3. Remove the V-packing and head ring. Pull out the
intermediate retainer ring. Remove the second
V-packing and second head ring.
4. Inspect all parts, and replace as necessary.
5. Thoroughly clean the packing cavities, and exam-
ine for debris or damage.
6. Lightly grease the packing cavities, and replace
the packings in the following order: head ring,
V-packing, intermediate ring, head ring, V-packing,
packing retainer. Install the O-ring in the retainer
groove.
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 Servic-
ing the Plungers on page 10.

12 309880
Pressure Washer Parts
Model 246800, Series A: APG3040H Pressure Washer
Model 246801, Series A: APG3540H Pressure Washer
TI2722a
57
13
55
21
1
47
43
44
7
6
5
4
14
20
3
35
55
36
31
18
17
9
19
28
26
48
56
34 29
51
15
12
11
55
30
16 38
10
39
32
2
50
49
8
37
52
56
22
23
24
25
54
2
66
60
65
61
62 1
64
63
58
59
1
1
2
Included with 58
Included with 66
2
1
1

309880 13
Pressure Washer Parts
Ref.
No. Part No. Description Qty.
Ref.
No. Part No. Description Qty.
1 287111 HANDLE, cart 1
2 803158 ENGINE, gx340,11 hp 1
used on Model 246800
114703 ENGINE, gx390,13 hp 1
used on Model 246801
3 116399 WHEEL, pneumatic,13 2
4 15B829 WASHER, flat, black 1
5 801504 FOOT, rubber 1
6 100132 WASHER, flat 1
7 100003 SCREW, cap, hex hd 1
8 246553 PUMP, assembly, ts1011 1
9 801526 BRACKET, mounting 1
10 15B803 GUARD, back, black 1
11 15B656 PULLEY, 2ak44h 1
12 801898 BUSHING, h–100 1
13 803944 SHEAVE, 2ak94h 1
14 287109 LEG, front 1
15 110963 SCREW, cap, flng hd 4
16 111040 NUT,lock, insert, nylock, 5/16 4
17 15B785 GUARD, belt, (black 1
18 245582 GUN, coupling assembly 1
19 117692 BELT, ax43 2
20 108851 WASHER, plain 2
21 801012 GROMMET 5
22 805547 TIP, spray, q–type 1
23 805548 TIP, spray, q–type 1
24 805549 TIP, spray, q–type 1
25 805550 TIP, spray, q–type 1
26 805634 TIP, spray, q–type 1
28 117779 SCREW, hex head, flanged 4
29 804356 INSULATOR, vibration 1
30 804376 SCREW, cap, hex hd 1
31 244783 HOSE, 4000 1
32 804275 TUBING, chemical, 1/4 id x 8ft 1
34 801137 KEY, square 1
35 101242 RING, retaining, ext. 2
36 15C032 BUMPER, frame 1
37 287110 FRAME, cart 1
38 15C089 HOOK, gun 1
39 117697 NUT, lock, heavy hex 4
43 117716 SCREW, cap, hex head 1
44 100527 WASHER, wrought 1
47 15C604 LABEL, pressure washer, 1
APG3040H used on Model 246800
15C606 LABEL, pressure washer, 1
APG3540H used on Model 246801
48 15C603 LABEL, presher washer, 1
APG3040H used on Model 246800
15C605 LABEL, pressure washer, 1
APG3540H used on Model 246801
49 802363 YLABEL, caution 1
50 290013 YLABEL, warning 1
51 804495YLABEL, warning 1
52 804500 YLABEL, warning 1
54 15C091 ISOLATOR, handle 2
55 501206 SCREW, socket hd 9
56 101566 NUT, lock 9
57 801135 BUSHING, h–24mm 1
58 246554 KIT, unloader 1
used on Model 246800
246546 KIT, unloader 1
used on Model 246801
59 246550 KIT, ez start 1
60 246549 KIT, fitting, banjo 1
61 801568 QUICK COUPLER, 3/8 female 1
62 804051 SCREEN 1
63 804570 WASHER 2
64 804569 WASHER 2
65 246551 KIT, injector 1
66 246552 KIT, ptp 1
YReplacement Danger and Warning labels, tags and
cards are available at not cost.

14 309880
Pump Kit Parts
ti2724a
34
35
36 3137
38
41
10
9
8
7
6
5
4
910
11
45
44
47
46
56
43
42
16
Kit #4
Kit #28
Kit #4
Kit #1
Kit #6
Pump Model 117690 – kit parts breakdown

309880 15
Pump Kit Parts
Ref.
No. Part No. Description Qty
Ref.
No. Part No. Description Qty
4 KIT 1 O-RING
5 KIT 1 SEAT, valve
6 KIT 1 PLATE, valve
7 KIT 1 SPRING
8 KIT 1 GUIDE, valve
9 KIT 4 O-RING
10 KIT 4 CAP
11 KIT 1 VALVE ASSEMBLY (includes 4 to 8)
16 KIT 2 SEAL, oil
31 KIT 6 O-RING
34 801660 WASHER, flinger 3
and KIT 6
35 801490 PLUNGER, ceramic 3
36 KIT 6 RING, backup
37 KIT 6 WASHER
38 KIT 6 SCREW, piston
41 KIT 3 SEAL, oil
42 KIT 28 O-RING
43 KIT 28 RETAINER, packing
44 KIT 8, 28 PACKING
45 KIT 28 RING, head
46 KIT 28 RETAINER, packing
47 KIT 28 RING, long life
Pump Repair Kits
Kit
No.
Repair Kit
Part No.
Ref.
No. Description Qty
1801472
Valve
11
4
5
6
7
8
VALVE ASSEMBLY
(includes 4 to 8)
O-RING
SEAT, valve
PLATE, valve
SPRING
GUIDE, valve
6
6
6
6
6
6
2801473
Oil Seal
16 SEAL, oil 3
3802511
Crankshaft
Seal
41 SEAL, oil 2
4802306
Valve
Cap
9
10
O-RING
CAP
6
6
Kit
No.
Repair Kit
Part No.
Ref.
No. Description Qty
6801474
Plunger
Repair
31
34
36
37
38
O-RING
WASHER, flinger
RING, backup
WASHER
SCREW, piston
3
3
3
3
3
8801486
Packing
44 PACKING 6
28 801487
Packing
and
Retainer
42
43
44
45
46
47
56
O-RING
RETAINER, packing
PACKING
RING, head
RETAINER, packing
RING, long life
SEAL, low pressure
1
1
1
1
1
1
1

16 309880
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
Low oil
Start/Stop switch in STOP position
Water in fuel, or old fuel
Engine flooded or improperly choked
Dirty air cleaner filter
Spark plug dirty, wrong gap, or wrong type
Gun not triggered
Fill the tank with gasoline, and open fuel shut off valve.
Check fuel line and carburetor.
Add oil to proper level.
Move switch to START position.
Drain fuel tank and carburetor. Use new fuel, and make
sure dry spark plug is dry.
Open choke, and crank engine several times to clear
out gas. Make sure spark plug is dry.
Remove and clean.
Clean, adjust the gap, or replace.
Trigger gun while starting engine.
Engine missing or
lacking power
Partially plugged air cleaner filter
Spark plug dirty, wrong gap, or wrong type
Remove and clean.
Clean, adjust the gap, or replace.
Pressure too low
and/or pump running
roughly
Worn or wrong size tip
Inlet filter clogged
Worn packings, abrasives in water, or
natural wear
Inadequate water supply
Belts slipping
Fouled or dirty inlet or discharge valves
Restricted inlet
Worn inlet or discharge valves
Leaking high-pressure hose
Replace with tip of proper size.
Clean. Check more frequently.
Check filter. Replace packings. See Pump Service on
page 10.
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 if garden hose is collapsed or kinked.
Replace worn valves. See Pump Service on page 10.
Replace high-pressure hose.
Water leaking from un-
der pump manifold
Worn packings Install new packings. See Pump Service on page 10.
Water in pump oil Humid air condensing inside crankcase
Worn packings
Oil seals leaking
Change oil as specified in Maintenance on page 9.
Install new packings. See Pump Service on page 10.
Install new oil seals. See Pump Service on page 10.
Packings failing fre-
quently or prematurely.
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
Install new plungers. See Pump Service on page 10.
Install proper filtration on pump inlet plumbing.
Check water temperature. It should not exceed
160_F (70_C).
Do not modify any factory-set adjustments. See EQUIP-
MENT MISUSE HAZARD on page 3.
Clean or replace tip. See Installing and Changing
Spray Tips on page 6.
Never run pump more than 10 minutes without spraying.
Do not run pump without water.
Strong surging at inlet,
and low pressure on
discharge side
Foreign particles in the inlet or discharge
valve, or worn inlet and/or discharge
valves
Clean or replace valves. See Pump Service on
page 10.

309880 17
Technical Data
APG3040H
Model 246800
APG3540H
Model 246801
Engine
(4 cycle, air cooled)
11 HP Honda OHV 13 HP Honda OHV
Gasoline tank capacity 6.9 quarts (6.5 liters) 6.9 quarts (6.5 liters)
Water pump maximum operating pressure 3000 psi
(21 MPa, 207 bar)
3500 psi
(24.1 MPa, 241 bar)
Water pump maximum flow 4 gpm (15 lpm) 4 gpm (15 lpm)
Inlet hose connection 3/4” garden hose (f) 3/4” garden hose (f)
Weight 180 lb (82 kg) 180 lb (82 kg)
Dimensions
Length
Width
Height
45” (1143mm)
27” (686mm)
25” (635mm)
45” (1143mm)
27” (686mm)
25” (635mm)
Sound levels
Sound pressure
Sound power
94 dB (A)
108 dB (A)
94 dB (A)
108 dB (A)
Maximum inlet water temperature 160_F (70_C) 160_F (70_C)
Wetted parts
High-pressure hose
Bypass hose
Pressure washer (including fittings)
Acrylonitrile and Buna–N cover and tube
Synthetic yarn and EPDM
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

18 309880
ASM Standard Warranty
ASM warrants all equipment referenced in this document which is manufactured by ASM and bearing its name to be free from defects
in material and workmanship on the date of sale by an authorized ASM distributor to the original purchaser for use. With the exception
of any special, extended, or limited warranty published by ASM, ASM will, for a period of twelve months from the date of sale, repair or
replace any part of the equipment determined by ASM to be defective. This warranty applies only when the equipment is installed,
operated and maintained in accordance with ASM’s written recommendations.
This warranty does not cover, and ASM 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 sub-
stitution of non–ASM component parts. Nor shall ASM be liable for malfunction, damage or wear caused by the incompatibility of ASM
equipment with structures, accessories, equipment or materials not supplied by ASM, or the improper design, manufacture, installa-
tion, operation or maintenance of structures, accessories, equipment or materials not supplied by ASM.
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized ASM distributor for
verification of the claimed defect. If the claimed defect is verified, ASM 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.
THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT
NOT LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.
ASM’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.
ASM 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 ASM. These items sold, but not manufactured by ASM (such as electric motors, switches, hose, etc.), are
subject to the warranty, if any, of their manufacturer. ASM will provide purchaser with reasonable assistance in making any claim for
breach of these warranties.
In no event will ASM be liable for indirect, incidental, special or consequential damages resulting from ASM supplying equipment here-
under, 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 ASM, or otherwise.
FOR ASM BRAZILIAN/CANADIAN/COLUMBIAN 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.
TO PLACE AN ORDER OR FOR SERVICE, contact your ASM distributor,
or call 1–800–854–4025 to identify the nearest distributor.
All written and visual data contained in this document reflects the latest product information available at the time of publication. ASM reserves the
right to make changes at any time without notice.
ASM Company, 3500 North 1st Avenue, Sioux Falls, SD 57104
www.asmcompany.com
PRINTED IN USA 309880 4/2003, Revised 5/2005