Dultmeier Sales DU PMC-349H User manual

Gas Engine Pressure Washer with Gear Reduction
DU PMC-349H
Owner’s Manual #0783 032010
Serial Number: Installation Date:

Please read and
understand this
manual. Store in
safe loca tion for
future reference.
IMPORTANT
Everyone who operates this unit should understand basic operations and safety precautions!
The time you take to fully understand the proper installation, maintenance and use of the machine will
prolong its service life, and assure you of trouble free operation.
When unpacking, check to make sure all the parts shown on the Parts Breakdown near the end of this
manual are included. If any parts are missing or broken, please call Dultmeier Sales as soon as possible.
Consumers should notice that this manual may differ slightly from the actual product as more improvements
are made to our products. Some of the pictures in this manual may differ slightly from the actual product
as well. Dultmeier Sales reserves the right to update designs and / or change the specifications at any
time without incurring any obligation to install them on units previously sold.
If you have any questions or suggestions about this manual, please contact us.
Dultmeier Sales, LLC
1.800.228.9666 • Fax: [phone] • 13808 Industrial Road Omaha, NE 68137
1.800.553.6975 • Fax: [phone] • 601 West 76th Street Davenport, IA 52806
http://www.dultmeier.com • [email protected]
Table of Contents
Safety Information ................................................................................................................................... 1
Specifications .......................................................................................................................................... 2
Operating Instructions .............................................................................................................................. 3-4
Maintenance ............................................................................................................................................. 5
Storage ..................................................................................................................................................... 6
Parts Breakdown ...................................................................................................................................... 7
Warranty Information ............................................................................................................................... 8
Checklist .................................................................................................................................................. 9

This is a Safety Alert Symbol -
When you see this symbol in the manual, look for the following signal words &
be alert to the potential for personal injury or property damage.
Warns of potential hazards that WILL cause serious personal injury, death or property damage.
Warns of potential hazards that CAN cause serious personal injury, death or property damage.
Warns of potential hazards that WILL or CAN cause minor personal injury, death or property damage.
Indicates special instructions that MUST be followed but not related to hazards.
To avoid serious or fatal personal injury or major property damage,
read and follow all safety and operation instructions in the manual.
This manual is intended to assist in the installation and operation of this unit.
Do not attempt to operate this unit without reading and understanding this manual.
DANGER
WARNING
IMPORTANT
CAUTION
Safety Information | 1
CAUTIONCAUTION
Burn Hazard
Do Not Touch An
Operating Engine
Engines can operate at high temperatures. To
avoid burns when servicing pump, allow it to cool
for 60 minutes after shutdown before handling.
General Safety
To avoid the risk of serious bodily injury and property damage, read safety instructions carefully before installing
this system. Follow all local and/or national plumbing and electrical codes when installing.
Do Not Allow System or Components to Freeze.
To do so may damage the system and will void the warranty.
Never Run the System Dry.
Running the unit dry (without fluid) can damage internal parts, overheat pump (which can cause
burns to people handling or servicing the pump), and will void the warranty.
Hazardous Pressure.
Do not run the unit with discharge shut off, as hose may burst or damage may occur due to
high pressure.
IMPORTANT
WARNING
WARNING

Gas Engine Pressure Washer with Gear Reduction Specifications
Specifications | 2
System Features & Options
Style ........................................................ High Pressure Plunger Pump
Capacity .................................................. 4 GPM
PSI ........................................................... 2200
Maximum Inlet Pressure ........................... 60 PSI
Maximum Inlet Temperature .................... 130° F
*See Included CAT PUMPS® Service Manual for Higher Temperatures
Engine ..................................................... AE GX240K1QA :: 8 HP
Pump ....................................................... CC 34G1
Crankcase Capacity .................................. 18 oz.
Pump Drive .............................................. Gear Box
Pump Inlet ............................................... 1/2”
Pump Discharge ....................................... 3/8”
Dimensions .............................................. Approx. 42”L x 22”W x 23”H
Shipping Weight ....................................... Approx. 110 lbs.
Heavy Duty Aluminum Baseplate with Wheels
Chemical Injection System
Unloader Valve for Pressure Relief
Safety Pop Off Valve
Thermal Relief Valve
50’ High Pressure Gun Hose
Trigger Spray Gun with: Insulated Extension & Gun Swivel
All Units are Pre-Plumbed, Pre-Wired, and Tested

Operating Instructions | 3
Plumbing
Set Up & Operation
figure 1
1. Your Pressure Washer is Pre-Plumbed and Garden
Hose ready. Simply run your Garden Hose from
the Water Supply Outlet to the female Garden
Hose fitting on the pump. 3/4” Garden Hose is
recommended. (Fig. 1)
Inlet Water Pressure
should not exceed 60 PSI.
IMPORTANT
1. Place unit on a level surface in a manner to permit
even oil flow.
2. While holding the Trigger Gun open, start the
system. All units are tested at production and
pressure should come up to specifications. When
Trigger Gun is closed Unloader will bypass flow
back to the inlet of the pump. The Gauge should
read 0 PSI when in bypass mode.
Leaving pump in bypass mode for
more than a few minutes can damage
pump due to friction heat buildup.
3. The Pressure can be adjusted by turning the
handle on the Regulating Unloader Valve. (Fig. 2)
Do not exceed the
Pressure Rating of the pump.
4. Set your Soap Container next to the Pressure
Washer and insert Chemical Suction with Stainer
into the container.
5. Adjust the Chemical Metering Knob out (counter-
clockwise) to increase the soap rate or in
(clockwise) to decrease the soap rate. Turning the
Metering Knob all the way in will turn of flow of
chemical. (Fig. 3)
6. Turn high/low nozzle to its ON position. With unit
running, squeeze Trigger Wand until soap flows
out of nozzle. (Fig. 4)
Hazardous Pressure -
Do not discharge toward body.
CAUTION
CAUTION
WARNING
figure 2
figure 3
Clockwise ...................... More Pressure
Counter-Clockwise ..........Less Pressure
Regulating
Unloader Handle
figure 4
Trigger Wand
High/Low Nozzle
Chemical
Metering Knob
OFFON

Operating Instructions | 4
Gas Engine
1. Turn the Fuel Valve to the ON position. (Fig. 5)
2. Move the Choke Lever to the CLOSE position. (Fig. 6)
Do not use Choke if the Engine is warm or the air temperature is high.
3. Move the Throttle Lever slightly to the left. (Fig. 7)
4. Start the Engine.
Recoil Starter:
• Turn the Engine switch to the ON position. (Fig. 8)
• Pull the Starter Grip lightly until resistance is felt, then pull back briskly. (Fig. 9)
Do not allow the Starter Grip to snap back against the Engine.
Return it gently to prevent damage to the starter.
Electric Starter:
• Turn the Engine switch to the START position and hold it there until the engine starts.
Do not use the Electric Starter for more than 5 seconds at a time. If the engine fails to
start, release the switch and wait 10 seconds before operating the starter again.
• When the engine starts, allow the engine switch to return to the ON position. (Fig. 10)
IMPORTANT
IMPORTANT
figure 5 figure 6 figure 7
CAUTION
figure 8 figure 9 figure 10

Maintenance - Regulating Unloader Valve
Maintenance | 5
Maintenance - Pump
Maintenance - Engine
1. Regulating Unloader Valve should be serviced or replaced when leaks occur or if not functioning properly.
1. Change the oil after intial 50 hours.
Use CAT PUMPS® Oil, part number CC 6100-1 for 21 oz. bottles or CC 6105-1 for 2.5 gallon jug.
This pump takes 18 oz.
2. The oil should be changed every 500 hours. If other than CAT PUMPS® special custom blend multi-viscosity
ISO68 hydraulic oil is used, change the oil every 300 hours.
3. For extended storage or between use in cold climates, drain all pumped liquids from pump and flush with
antifreeze to prevent freezing and damage to the pump. When running antifreeze through system, open
and close trigger gun so entire system is protected.
IMPORTANT
Please refer to the included CAT PUMPS® reference materials for extended pump maintenance.
REGULAR SERVICE PERIOD (3)
Perform at every indicated month or operating
hour interval, whichever comes first.
Each
Use
First
Month
or
20 Hrs
Every 3
Months
or
50 Hrs
Every 6
Months
or
100 Hrs
Every
Year
or
300 Hrs
ITEM
Engine Oil Check Level x
Change x x
Reduction Case Oil
(applicable types)
Check Level x
Change x x
Air Cleaner Check x
Clean x (1) x (1)
Replace x
Sediment Cup Clean x
Spark Plug Check-Adjust x
Replace x
Spark Arrester
(applicable types)
Clean x
Idle Speed Check-Adjust x (2)
Valve Clearance Check-Adjust x (2)
Combustion Chamber Clean After every 500 Hours (2)
Fuel Tank & Filter Clean x (2)
Fuel Tube Check Every 2 Years (Replace if necessary) (2)
(1) - Service more frequently when used in dusty areas.
(2) - These items should be serviced by your Honda servicing dealer, unless you have the proper
tools and are mechanically proficient. Refer to the Honda Shop Manual for service procedures.
(3) - For commercial use, log hours of operation to determine proper maintenance intervals.
Please refer to the included Honda Engine Owner’s Manual for further information and instructions.

Storage - Engine Care
Storage | 6
Proper storage preparation is essential for keeping your system trouble-free and looking good. The following
steps will help to keep rust and corrosion from impairing your system’s function and appearance, and will
make the system easier to start when you use it again.
If the engine has been running, allow it to cool for at least half an hour before cleaning. Clean all exterior
surfaces, touch up any damaged paint, and coat other areas that may rust with a light film of oil.
Using a garden hose or pressure washing equipment can force water into the air cleaner or muffler
opening. Water in the air cleaner will soak the air filter, and water that passes through the air filter or
muffler can enter the cylinder, causing damage.
Gasoline will oxidize and deteriorate in storage. Deteriorated gasoline will cause hard starting, and
it leaves gum deposits that clog the fuel system. If the gasoline in your engine deteriorates during
storage, you may need to have the carburetor and other fuel system components serviced or replaced.
The length of time that gasoline can be left in your fuel tank and carburetor without causing functional
problems will vary with such factors as gasoline blend, your storage temperatures, and whether the tank
is partially or completely filled. The air in a partially filled fuel tank promotes fuel deterioration. Very warm
storage temperatures accelerate fuel deterioration. Fuel deterioration problems may occur with a few months,
or even less if the gasoline was not fresh when you filled the fuel tank.
You can extended fuel storage life by adding gasoline stabilizer that is formulated for that purpose, or
you can avoid fuel deterioration problems by draining the fuel tank and carburetor.
When adding a gasoline stabilizer, fill the fuel tank with fresh gasoline. If only partially filled, air in the tank
will promote fuel deterioration during storage. If you keep a container of gasoline for refueling be sure that it
contains only fresh gasoline.
1. Add gasoline stabilizer following the manufacturer’s instructions.
2. After adding gasoline stabilizer, run the engine outdoors for 10 minutes to be sure that treated gasoline
has replaced the untreated gasoline in the carburetor.
3. Stop the engine.
If your engine will be stored with gasoline in the fuel tank and carburetor, it is important to reduce the hazard
of gasoline vapor ignition. Select a well ventilated storage area away from any appliance that operates with a
flame, such as a furnace, water heater, or clothes dryer. Also avoid any area with a spark-producing electric
motor, or where power tools are operated.
If possible, avoid storage areas with high humidity, because that promotes rust and corrosion.
Keep the engine level in storage. Tilting can cause fuel or oil leakage.
With the engine and exhaust system cool, cover the engine to keep out dust. A hot engine and exhaust system
can ignite or melt some materials. Do not use sheet plastic as a dust cover. A nonporous cover will trap
moisture around the engine, promoting rust and corrosion.
If equipped with a battery for electric starter types, recharge the battery once a month while the engine is in
storage. This will help extend the service life of the battery.

Parts Breakdown | 7
Parts Breakdown: DU PMC-349H
1
4
1
2
1
3
3
8
4
2
5
10
9
1
1
7
6
1
Item Part Number Description
1 .......... DU 1796 ................. Aluminum Baseplate with Wheels
2 .......... DU 1252 ................. Hose Holder
3 .......... AE GX240K1QA ....... 8 HP Honda Engine
4 .......... CC 34G1 ................. Cat Plunger Pump with Gear Box
5 .......... IP Y221 ................... Chemical Injector
6 .......... TF 1 ........................ Vinyl Tubing, 1/4”
7 .......... NP ST261 ................ Suttner Regulating Unloader Valve
8 .......... GU 22531A ............ Safety Pop Off Valve
9 .......... NP ST300 ................ Swivel, 3/8” Brass
10 .......... NP ST1500 .............. Spray Wand
11 .......... GU 21718................ Stainless Steel Wand Extension, 36”
12 .......... SS 1/4MEG25055 .... Washjet Nozzle
13 .......... IP ST55N ................. Adustable Soap Nozzle
14 .......... GA 6HR50 ............... Black Wash Hose, 3/8” x 50’

Notice Regarding Manufacturer’s Limited Warranty
Dultmeier Sales Limited Liability Company (hereinafter Dultmeier), notifies you that component
part(s) carry a manufacturer’s limited warranty provided by the manufacturer of said component
part(s). These warranties do not pertain to normal wear of component part(s) that may occur
within any specified period. While Dultmeier is not the manufacturer of any of the component
part(s), Dultmeier will assist you in processing any and all manufacturer’s warranty claim if
applicable and available. Any and all manufacturer’s claims must be submitted in writing to the
manufacturer within the warranty periods provided by the manufacturer.
Defective component part(s) that are to be considered for manufacturer’s limited warranty must
be returned to the manufacturer by prepaid shipment with the applicable manufacturer’s limited
warranty period. If the component part(s) are deemed to be defective under the manufacturer’s
warranty, Dultmeier will assist in obtaining a replacement or repair of the component part(s). Said
component part(s) will be returned F.O.B. Omaha, Nebraska. Replacement or repair shall be the
exclusive remedy for any breach of warranty. Labor for installation, either with respect to original
or replacement part or components, is not covered under the manufacturer’s limited warranty.
Neither the manufacturer nor Dultmeier warrants loss of income or consequential damages for
injury or commercial loss resulting from any breach of warranty or warranties stated above.
The manufacturer’s limited warranty as stated does not apply to component part(s) which
have been improperly installed, misused, altered, neglected, abused or not installed, adjusted,
maintained, or used in accordance with applicable codes and ordinances and in accordance with
the manufacturer’s specifications as to such factors.
Notwithstanding Dultmeier’s willingness to assist in the processing of the manufacturer’s limited
warranty, Dultmeier makes no warranty against infringement of the like, makes no warranty
of merchantability, makes no warranty of fitness for a particular purpose, and makes no other
warranty, express or implied, including implied warranty arising from the course of dealing or
usage of trade.
Compliance with all local, state and federal codes regarding the installation and operation of said
equipment, parts and components shall be the responsibility of the purchaser. The rights and
obligations of the parties shall be governed by the laws of the State of Nebraska.
Dultmeier Sales • 1-800-228-9666 Omaha, NE • 1-800-553-6975 Davenport, IA
Warranty Information | 8

Checklist | 9
If you have any questions or concerns about condition of this unit, please contact us before operating.
Dultmeier Sales, LLC
Omaha, NE 1.800.228.9666 • Davenport, IA 1.800.553.6975
http://www.dultmeier.com • [email protected]
Production Checklist
Checked By
Tested
OK NA
Engine Oil Level
Pump Oil Level
Gear Box Oil Level
Clamps Tight
Bolts Tight & Anti-Seized
Fittings Straight
Winterized
OK NA
OK NA
OK NA
OK NA
OK NA
OK NA
OK NA
OK NA
OK NA
OK NA
OK NA
Gas Removed from Tank & Bowl
OK NA
Pop-Off Valve Set PSI
Unloader Valve Locked
PSI
Engine RPM
OK NA
OK NA
OK NA
OK NA
Safety Pop Off Valve
Trigger Gun 1 2
High Pressure Hose
Injector / Injector Hose
Gauge
OK NA
OK NA
OK NA
OK NA
OK NA
OK NA
Built By
Customer Checklist
OK NA
OK NA
OK NA
OK NA
Shipping Container Was In Good Shape
Accessories Included
Oil Level To Manufacturer’s Specifications
Overall Condition
Accessories
OK NA
OK NA