operatorâ€™s manual water pumps pw20, pw30, pw40

Operator’s Manual Water Pumps

PW20, PW30, PW40

WARNING: Do not assemble, install or operate this equipment without reading ALL of this manual and the safety precautions and warning illustrated in this manual.

Tel: 866-939-9811 Fax: 636-922-6422 Web: www.hotmaxtorches.com

KDAR Company 15009 Manchester Rd #283 Ballwin, MO 63011

KDAR Company 1

SAFETY PRECAUTIONS AND WARNINGS PLEASE READ BEFORE USING EQUIPMENT

DANGER DANGER indicates a potentially hazardous situation which, if not avoided, WILL, result in death or serious injury.

WARNING WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate personal injury, or property damage.

WARNING—Failure to follow the in-structions and warnings in this manual may result in death, serious injury or property damage. The dangers, warnings, cautions and in-structions found in this manual cannot cover all possible conditions and situa-tions that may occur. It must be under-stood by the operator that COMMON SENSE AND CAUTION ARE FAC-TORS WHICH CANNOT BE BUILT INTO THIS PRODUCT BUT MUST BE SUPPLIED BY THE OPERATOR. 1. Know your water pump and how to use

it properly. When using the water pump consider the limitations and potential hazards.

2. The water pump must be placed on a firm surface with sufficient support.

3. Do not overload the water pump as this will damage or shorten the life of the unit.

4. Always remove the spark plug or spark plug cable before performing maintenance to avoid accidental start-ing.

5. Always keep the water pumps clean and free of oil, mud and other foreign matter.

6. Never operate a water pump with missing or broken parts or without protective housing or covers.

7. Suction and discharge hoses used with this water pump must be in good condition Never operate the water pump with damaged or defective hoses.

8. Do not touch engine muffler or other engine or water pump parts which get hot during operation.

9. Stay alert. Do not use a water pump while tired or under the influence of drugs, alcohol or medication. A mo-ment of inattention while operating the water pump may result in serious personal injury or death.

KDAR Company 2

SAFETY PRECAUTIONS AND WARNINGS PLEASE READ BEFORE USING EQUIPMENT

12. Always store the water pump in a well ventilated area. Follow the instructions in this manual for preparing to store a water pump. Never store fuel near the water pump.

13. Never operate a water pump if any of the following conditions are present. a. Uncontrolled change in engine speed. b. Sparking. f. Engine misfire. g. Excessive vibration. h. Flame or smoke. i. An enclosed compartment.

14. Check the unit before each use for signs of deterioration such as worn or porous hose, loose or missing clamps, a dam-aged tank or cap. Replace all defective parts before operating the water pump.

15. The water pump should be operated, ser-viced and/or refueled under the following conditions only. a. Start and run the water pump out-

doors. Never run the water pump in an enclosed area even if the win-dows and doors are opened. Avoid areas where exhaust vapors can be trapped. DANGER—CARBON MONOXIDE HAZARD: The engine exhaust contains carbon monoxide, a poisonous, odorless, invisible gas which, if breathed, may cause death or personal injury.

b. Good ventilation for cooling. The water pump is air cooled and re-quires appropriate air flow. Tem-peratures should not exceed 104° F ambient.

c. Refuel the water pump in a well ventilated area with sufficient light. Allow the engine to cool for 3-4 minutes before refueling. Avoid spills and NEVER refuel while the water pump is running.

d. Never refuel the water pump near open flames, sparking electrical equipment or pilot lights

e. Never start or run the water pump without the muffler and air filter installed and in good condition as they work as flame arresters in case of backfires.

f. Never smoke near the water pump.

17. Do not wear lose clothing or jewelry that could get caught in the starter or other moving parts.

18. Know how to stop the pump quickly, and understand the operation of all con-trols. Never permit anyone to operate the pump without proper instruction.

19. 20. Never insert anything through the venti-

lation slots, this could cause damage to the water pump or personal injury.

21. Water pumps are heavy, use proper lift-ing techniques.

22. This pump is designed to pump only wa-ter that is not intended for human con-sumption. Other uses can result in per-son injury or damage to the pump or other property. Pumping sea water, bev-erages, acids, chemical solutions, or any other liquid that promotes corrosion can damage the pump. Pumping flammable liquids, such as gasoline or fuel oils, can result in a fire or explosion, causing serious in-jury.

23. Do not overload the pump. Use the cor-rect pump for the application. The cor-rect pump will do the job better and safer at the rate for which it is designed.

24. Do not allow children to operate the pump. Keep children and pets away from the area of operation.

KDAR Company 3

Specifications

WP20 WP30 WP40 Engine

Engine Type 4-Stroke, Overhead Valve, Single Cylinder

4-Stroke, Overhead Valve, Single Cylinder

4-Stroke, Overhead Valve, Single Cylinder

Engine Size 5.5 HP @ 3600 RPM, 163cc

6.5 HP @ 3600 RPM, 196cc

8.0 HP @3600 RPM, 242cc

Max. Torque 8.0 ft-lbs @ 2500 RPM 9.6 ft-lbs @ 2500 RPM 12.4 ft-lbs @ 2500 RPM

Valve Clearance IN: 0.15 ± 0.02 mm (cold) EX: 0.20 ± 0.02 mm (cold)

IN: 0.15 ± 0.02 mm (cold) EX: 0.20 ± 0.02 mm (cold)

IN: 0.15 ± 0.02 mm (cold) EX: 0.20 ± 0.02 mm (cold)

Spark Plug NGK: BPR6ES DENSO: W20EPR-U

NGK: BPR6ES DENSO: W20EPR-U

NGK: BPR6ES DENSO: W20EPR-U

Spark Plug Gap 0.028-0.031 in 0.028-0.031 in 0.028-0.031 in Idle Speed 1400 RPM (+200/-150) 1400 RPM (+200/-150) 1400 RPM (+200/-150)

Engine Oil SAE 10W-30, API, SJ or SL for general use

SAE 10W-30, API, SJ or SL for general use

SAE 10W-30, API, SJ or SL for general use

Engine Oil Capacity 0.63 Qt. (0.6 liters) 0.63 Qt. (0.6 liters) 1.15 Qt. (1.1 liters)

Fuel Gasoline, 86 Octane or higher

Gasoline, 86 Octane or higher

Gasoline, 86 Octane or higher

Fuel Tank Capacity 1.0 Gal (3.6 liters) 1.0 Gal (3.6 liters) 1.6 Gal (6.0 liters) Fuel Consumption .51 GPH .51 GPH .51 GPH Cooling System Forced Air Forced Air Forced Air Ignition System Transistorized Magneto Transistorized Magneto Transistorized Magneto

Pump Suction Port Diame-ter 2 in (50mm) 3 in (80mm) 4 in (100mm)

Discharge Port Di-ameter 2 in (50mm) 3 in (80mm) 4 in (100mm)

Total Head 85 ft (26 M) 92 ft (28 M) 53 ft (16 M) Suction Head 26 ft (8 M) 26 ft (8 M) 26 ft (8 M) Discharge Capacity 150 gal/min (550 L/min) 264 gal/min (1000 L/min) 343 gal/min (1300 L/Min) Max. Pressure 35.5 psi 45 psi 45 psi Continuous Running Time Apprx. 2-3 hours Apprx. 2-3 hours Apprx. 2-3 hours

Size L x W x H (in) 18.3 x 14.6 x 17.1 19.9 x 14.6 x 17.1 25 x 17.5 x 24.7 Dry Weight 59.4 lbs 66 lbs 130.4 lbs

Table 1

KDAR Company 4

Features/Package Contents

WP20 • All Aluminum Pump Hous-

ing w/Ceramic Seals • 2” Suction & 2” Discharge

Fittings • 8700 GPM Max. Output • 26’ Suction Head • 85’ Total Head • Max. Pressure 35.5 PSI • 5.5 HP Engine @ 3600

RPM • Low Oil Shut Off • Spark Arrestor Muffler • EPA Certified Engine • Built in Fuel Gauge • Recoil Start • TCI Ignition • 1 Gal Fuel Tank w/Input

Fuel Filter • Fuel Shutoff w/Internal Fuel

Filter • Noise Level of 67 DB @ 24

Feet • Run Time—Approx. 2

Hours @ 50% Load

Features



Fittings • 15,800 GPM Max. Output • 26’ Suction Head • 92’ Total Head • Max. Pressure 45 PSI • 6.5 HP Engine @ 3600

RPM • Low Oil Shut Off • Spark Arrestor Muffler • EPA Certified Engine • Built in Fuel Gauge • Recoil Start • TCI Ignition • 1 Gal Fuel Tank w/Input




Hours @ 50% Load



Fittings • 20,600 GPM Max. Output • 26’ Suction Head • 53’ Total Head • Max. Pressure 45 PSI • 8.05 HP Engine @ 3600

RPM • Low Oil Shut Off • Spark Arrestor Muffler • EPA Certified Engine • Built in Fuel Gauge • Recoil Start • TCI Ignition • 1.6 Gal Fuel Tank w/Input




Package Contents

1. Water Pump Unit 2. Operator’s Manual 3. Warranty Card 4. Spark Plug Wrench 5. Screw Driver 6. Hose Clamps (3) 7. Hose Coupler (2) 8. Hose Clamp Ring (2) 9. Sealing Washer (2) 10. Strainer

Hose Clamps

Sealing Washer

Hose Clamp Ring

Hose Coupler

Strainer

KDAR Company 5

Component & Control Locations

Fuel Tank

Choke

Throttle

Fuel Valve

Starter Grip ON/OFF

Switch

Oil Fill Cap & Dipstick

Fuel Level Gauge

Fuel Tank Cap

Primer Water Filler Cap

Discharge Port

Intake Port

Pump Water Drain Plug

Air Filter

Oil Drain Plug

Carburetor

Muffler

KDAR Company 6

Set Up

Engine Preparation

Engine Oil NOTE: Engine oil is a major factor affecting the performance and service life of this water pump. Non-detergent and 2-stroke engine oils WILL damage the engine and are not recom-mended.

1. Use 4 stroke oil, or an equivalent high deter-gent, premium quality motor oil certified to meet or exceed U.S. automobile manufac-turer’s requirements for Service Classification SG, SF/CC, CD. This designation will be on the motor oil container.

2. SAE 10W-30 is recommended for general, all-temperature use. See chart for appropriate weights for your area.

3. Locate the oil filler cap and remove.

4. Fill oil reservoir according to the engine oil capacity found in table 1.

5. Confirm proper fill by replacing the dip stick and checking the oil level.

Fueling the Engine WARNING

• Gasoline is extremely flammable and is explosive under certain conditions.

• Fuel and refuel in a well ventilated area with the engine stopped.

• Do not smoke or allow flames or sparks in the area where the engine is being refueled or where gasoline is stored.

• Do not over fill the tank (there should be no fuel in the filler neck).

• After refueling, make sure the tank cap is closed properly and securely.

• Be careful not to spill fuel when fueling or refueling. Spilled fuel or fuel vapor may ignite.

• If fuel is spilled make sure the area is dry and free of fumes before starting the engine.

• Avoid fuel contact with the skin or breathing vapors for a prolonged pe-riod.

• KEEP FUEL OUT OF THE REACH OF CHILDREN.

1. Unleaded gasoline with a octane rating of 86 or higher is recommended because it produces fewer engine and spark plug deposits and ex-tends the exhaust system life.

2. Remove tank cap and fill tank. 3. Do not fill tank above the shoulder of the fuel

strainer.

4. Never use stale or contaminated gasoline or oil/gasoline mixture. KDAR recommends a fuel stabilizer.

5. Avoid getting dirt or water in the fuel tank.

KDAR Company 7

Operation

Pre-Start Preparation

NOTE: The following procedures are to be completed each time the water pump is started. General Condition 1. Look around and underneath the pump for

signs of oil or gasoline leaks. 2. Check that all nuts, bolts, screws, hose connec-

tors and clamps are tightened. 3. Remove any excessive dirt or debris, espe-

cially around the muffler and recoil starter. 4. Look for signs of damage.

WARNING Improperly maintaining this pump, or failing to correct a problem before operation, could cause a malfunction that may result in serious injury. Always perform a pre-operation inspection be-fore each operation and correct any problem.

Suction & Discharge Hoses 1. Check the general condition of any hose that is

to be connected to the water pump and be sure they are in serviceable condition. Note: The suction hose must be reinforced construction to prevent collapse.

2. Insure the sealing washer in the suction hose connector is in good condition.

3. Check that hose connectors and clamps are properly and securely installed.

4. Make sure the strainer is in good condition and connected to the suction hose.

Engine 1. Check engine oil level and ad if the level is

low.. 2. Check the air filter to insure it is clean and free

of obstructions.. 3. Check the fuel level to insure tank is full..

Pump Placement

For best pump performance, place the pump near the water level and use hoses that are no longer then necessary. This will enable the pump to pro-duce the greatest output. As head (pumping height) increases, pump output decreases. Maximum head specifications are show in Table 1 on page 3. The length , type and size of the suction and discharge hoses can also signifi-cantly effect the pump output. Discharge head capacity is always greater than suctions head capacity, so it is important for the suction head to be the shorter part of the total head. Minimizing suction head (placing the pump near the water level) is also very important for reducing self-priming time. Self-priming time is the time it takes the pump to bring water the distance of the suction head during initial operation.

KDAR Company 8

Operation

Suction Hose Installation

Note: Use commercially available suction hose that is reinforced with non-collapsible wall or braided wire construction. 1. Slide a hose coupler into the hose clamp ring. 2. Insert sealing washer into the hose clamp ring. 3. Securely tread the hose clamp ring onto intake

port. (see diagram below)

4. Slide hose clamp over the hose. 5. Slide hose over the hose coupler. 6. Move hose clamp up over the hose coupler

and tighten securely. 7. Slide a hose clamp over the other end of the

suction hose. 8. Slide suction hose over the strainer. 9. Move hose clamp up over the strainer connec-

tor and tighten the hose clamp.

Discharge Hose Installation

Note: Use commercially available discharge hose. 1. Slide a hose coupler into the hose clamp ring. 2. Insert sealing washer into the hose clamp ring. 3. Securely tread the hose clamp ring onto dis-

charge port. (see diagram below) 4. Slide a hose clamp over the hose. 5. Slide hose over the hose coupler. 6. Slide hose clamp over the hose coupler and

tighten securely.

Priming the Pump

Note: Operating the pump dry will destroy the pump seal. If the pump has been run dry, stop the engine immediately, allow to cool and prime the pump. 1. Remove the filler cap. 2. Completely fill the pump chamber with water. 3. Reinstall the filler cap and tighten securely.

KDAR Company 9

Operation

Starting the Engine

1. Move the fuel valve lever to the on position.

2. If the engine is cold at start, move the choke lever to the CLOSED position. Leave OPEN for warm start.

3. Move the throttle lever away from the SLOW position to about 1/3 toward the FAST posi-tion.

4. Turn the engine switch to the ON position.

5. Pull the starter grip lightly until you feel resis-tance, then pull briskly. Return the grip gently.

6. If the choke lever has been moved to the CLOSED position, gradually move it to the OPEN position as the engine warms up.

Setting Engine Speed 1. After starting the engine, check the pump out-

put. 2. Adjust the pump output by moving the throttle

lever. For greater output move the throttle lever to the FAST position. For lower output, move the throttle lever to the SLOW position.

WP20 & WP30 Slide left to close

WP40 Pull to Close

WP20 & WP30 Slide Right to Open

WP40 Push to Open

Starter Grip

FAST SLOW

FAST SLOW

KDAR Company 10

Operation

Shutting Down the Pump

Note: For emergency engine stop, simply turn the engine switch to OFF. 1. Move the throttle lever to the SLOW position.

2. Turn the engine switch to the OFF position.

3. Turn fuel valve to the off position. Note: When the pump is not in use the fuel valve should be in the OFF position.

4. Remove the pump drain plug and drain the pump chamber.

5. Remove filler cap from the pump and flush the pump chamber with clean water.

6. Allow water to drain from the pump chamber and replace filler cap and drain plug.

SLOW

Filler Cap

Drain Plug

KDAR Company 11

Maintenance

REGULAR SERVICE PERIOD(3) ITEM Perform at every indicated month or operating hour interval, whichever comes first.

Each use First month or 20 Hours

Every 3 months or 50 Hours

Every 6 months or 100 Hours

Every year or

300 Hours

Engine oil Check level √

Change √ √

Reduction gear oil (applicable types)

Check level √

Change √ √

Air filter Check √

Clean √ (1) √ (1)

Replace √

Sediment cup Clean √

Sparkplug Check-adjust √

Replace √

Spark arrester Clean √

Idle speed Check-adjust √ (2)

Valve clearance Check-adjust √ (2)

Combustion chamber Clean After every 500 Hours (2)

Fuel tank & filter Clean √ (2)

Fuel tube Check Every 2 years (Replace if necessary) (2)

Impeller Check √ (2)

Impeller clearance Check √ (2)

Pump inlet valve Check √ (2)

Maintenance Schedule

(1) - Service more frequently when used in dusty areas (2) - These items should be serviced by a qualified mechanic at an approved KDAR service center. (3) - For commercial use, log hours of operation to determine proper maintenance intervals.

WARNING Make sure the engine is off and cool before you begin any maintenance or repairs. This will eliminate several potential hazards. • Carbon monoxide poisoning from engine

exhaust.

• Burns from hot parts • Injury from moving parts Read all instructions before you begin and make sure you have the tools and skills re-quired to complete the task.

KDAR Company 12

Maintenance

Engine Oil Change

1. Change oil while engine is warm to assure complete and rapid draining.

2. The Water Pump should be on a level surface. 3. Remove oil filler cap. 4. Place pan under water pump to catch oil. 5. Remove oil drain plug. 6. Allow oil to drain completely. 7. Replace drain plug. 8. Refill with recommended oil (page 6). 9. Check oil level.

Fill Cap

Drain Plug

Air Cleaner Service 1. Unsnap the air cleaner cover clips. 2. Remove the air filter element. 3. Wash the element in a solution of household

detergent and warm water and rinse thoroughly (a nonflammable or high flash point solvent can also be used).

4. Allow to dry completely. 5. Pour a small amount of clean engine oil on the

element and squeeze out the excess. 6. Reinstall air filter element and replace cover.

Spark Arrestor Cleaning

1. Engine must be cool and muffler safe to touch to remove the Spark Arrestor from the muffler.

2. To remove the Spark Arrestor, loosen the screw on clamp and remove the Arrestor. (Make sure to handle carefully and gently)

3. Brush lightly the element in a solution of household detergent and warm water and rinse thoroughly. (A nonflammable or high flash point solvent can also be used)

4. Re-install Arrestor and tighten clamp.

Fuel Filter Cleaning

1. Drain fuel from tank. 2. Disconnect fuel line from fuel valve. 3. Remove fuel valve from tank. 4. Remove fuel filter from the top of the fuel

valve by unthreading (should be able to be re-moved with fingers).

5. Clean fuel filter with a nonflammable or high flashpoint solvent.

6. Reattach fuel filter to fuel valve and reattach fuel valve to tank and fuel line.

Fuel Valve Cleaning

1. Remove the sediment cup and O-ring at the bottom of the fuel valve with a small wrench.

2. Clean and wash out the sediment cup with a nonflammable or high flashpoint solvent.

3. Replace the sediment cup and O-ring.

Sediment Cup

Fuel Strainer Cleaning

1. Remove the plastic fuel strainer from under the fuel tank cap.

2. Clean and wash out the strainer with a non-flammable or high flashpoint solvent.

3. Replace strainer.

KDAR Company 13

Maintenance

Spark Plug Service

Recommended Spark Plug: BPR6ES (NGK) W20EPR-U (DENSO) To insure proper engine operation, the spark plug must be properly gapped and free of deposits.

WARNING If the engine has been running, the muf-fler will be very hot. Care must be taken not to touch the muffler when removing the spark plug.

1. Remove the spark plug cap. 2. Clean any dirt from around the spark plug

base. 3. Use the wrench supplied with the water pump

to remove the spark plug. 4. Visually inspect the spark plug and discard if

the insulator is cracked or chipped. 3. Clean with a wire brush if the spark plug is to

be reused. 4. Measure the plug gap with a feeler gauge. 5. Correct as necessary by carefully bending the

side electrode. The gap should be: 0.70—0.80mm (0.028-0.031 in.)

8. Check to make sure the spark plug washer is in good condition.

9. Thread the spark plug in by hand to prevent cross-threading.

10. After the spark plug is seated, tighten with the spark plug wrench to compress the washer. If installing a new spark plug, tighten 1/2 turn after the spark plug seats to compress the washer. If reinstalling a used spark plug, tighten 1/8-1/4 turn after the spark plug seats to compress the washer.

CAUTION The spark plug must be securely tightened. An improperly tightened spark plug can become very hot and could damage the engine. Never use spark plugs which have an improper heat range. Use only the recommended spark plugs or equivalent.

Preparing for Transportation

1. Turn the engine switch and fuel valve to the off or stop position.

2. Disconnect suction and discharge hoses to pre-vent damage during transport.

3. Let the engine cool before transporting. 4. Keep the water pump level to prevent fuel

spillage. 5. Take care not to drop or strike the water pump

when transporting.

KDAR Company 14

Storage

Note: Proper storage preparation is essential to keeping the pump trouble free. Following the steps below will keep the pump in good working order and easier to start when used next.

Cleaning the Pump

1. Allow engine to cool at least a half hour before cleaning.

2. Wash the engine and pump. Note: It is best to wash the pump by hand (do not use a hose or power washer) in or-der to prevent water from getting into the air filter, muffler opening or other areas sensitive to water.

3. Wipe all surfaces dry. 4. Fill the pump chamber with clean water. 5. Start the pump and allow it to run until it

reaches normal operating temperature to evaporate any external water.

6. Stop engine and allow to cool. 7. Remove pump drain plug and flush with clean

water. 8. Allow water to drain. 9. Spray controls with silicone lubricant.

Preparing the Engine for Storage

1. Be sure the storage area is free of excessive humidity and dust.

2. Preparation will depend on the length of time the water pump will be stored as outlined be-

Less than 1 Month • No preparation necessary.

1 to 2 Months

• Fill with fresh gasoline. • Add fuel stabilizer to the gasoline.

2 Months to 1 Year

• Fill with fresh gasoline. • Add fuel stabilizer to the gasoline. • Drain the carburetor float bowl. • Drain the fuel sediment cup.

1 Year or More • Fill with fresh gasoline. • Add fuel stabilizer to the gasoline. • Drain the carburetor float bowl. • Drain the fuel sediment cup. • Oil engine internally (see below) • Change the engine oil. • After removal from storage, drain the

stored gasoline into a suitable container and fill with fresh gasoline before start-ing.

Drain Carburetor WARNING

• Gasoline is extremely flammable and is explosive under certain conditions.

• Do not smoke or allow flames or sparks in the area when the carbure-tor is being drained.

• Be careful not to spill fuel when draining the carburetor. Spilled fuel or fuel vapor may ignite.

• Avoid fuel contact with the skin or breathing vapors for a prolonged pe-riod.

• KEEP FUEL OUT OF THE REACH OF CHILDREN.

1. Loosen the carburetor drain screw. 2. Drain carburetor into a suitable container. 3. Replace drain screw.

Carburetor Drain Screw

KDAR Company 15

Storage

Internal Oiling

1. Remove the spark plug. 2. Pour 1 tablespoon of clean engine oil into the

cylinder. 3. Crank the engine several times by pulling on

the starter rope. 4. Reinstall the spark plug. 5. Slowly pull the starter rope until resistance is

felt. At this point the piston is coming up on its compression stroke and both the intake and exhaust valves are closed. Storing the engine in this position will help protect it from internal corrosion.

Safety Features

Low-Oil Shutdown This water pump is equipped with low-oil shut-down. If the oil level in the engine gets too low the engine will shut down automatically. This prevents damage to the engine resulting from insufficient lubrication. It the engine shuts down and the oil is at the proper level, make sure the water pump is on a level sur-face. Having the unit at an angle may shift the oil giving the sensor a false reading. Spark Arresting Muffler All Hot Max water pumps are equipped with spark arresting mufflers allowing for use around agricul-tural crops, forests, brush, grass and other similar items. Spark arresting mufflers are required in the State of California and on some U.S. Forest Ser-vice Land and may also be legally required under other statutes and ordinances. The California stat-ues requiring a spark arresting muffler are Sections 13005(b), 4442 and 4443.

Replacement Parts

The emission control systems on your engine were designed, built, and certified to conform with EPA and California emission regulations. We recom-mend the use of original replacement parts when-ever you have maintenance done. These original-design replacement parts are manufactured to the same standards as the original parts, so you can be confident of their performance. The use of replace-ment parts that are not of the original design and quality many impair the effectiveness of your emission control system. A manufacturer of an aftermarket part assumes the responsibility that the part will not adversely affect emission performance. The manufacturer or re-builder of the part must certify that use of the part will not result in a failure of the engine to comply with emission regulations.

KDAR Company 16

Trouble Shooting

Engine Will Not Start

Refill the tank. NO

Is there fuel in the tank?

Is there oil in the engine? Add the recommended oil.

YES NO

Is there a spark from the spark plug?

Replace the spark plug.

Take the water pump to an authorized KDAR water pump service center.

NO Still no Spark

YES

To Check: 1. Remove the spark plug cap and clean

any dirt from around the spark plug. 2. Remove the spark plug and install the

spark plug in the plug cap. 3. Set the plug side electrode on the cylin-

der head. 4. Crank engine, sparks should jump

across the gap.

• Be sure there is no spilled fuel in the area.

• Gasoline is extremely flamma-ble and is explosive under cer-tain conditions.

WARNING

Is the fuel reaching the carburetor?

YES

Clean the fuel sediment cup and fuel filter.

NO

To Check: 1. Turn off the engine switch and

loosen the carburetor drain screw.

2. Fuel should flow from the drain when the fuel valve is turned on.

If the engine still does not start, take the water pump to a authorized KDAR service center.

YES

NOTE: The nearest KDAR authorized ser-vice center can be found by visiting www.hotmaxtorches.com.

Is the fuel valve on?

Is the choke closed?

Is the engine switch on?

YES

YES

YES

Turn fuel valve on.

Move choke to closed unless the engine is warm.

Turn engine switch on. NO

NO

NO

KDAR Company 17

Trouble Shooting

Engine Lacks Power

Is the air filter element clogged?

Is the fuel bad? Engine stored with-out treating the fuel or refueled with bad gasoline

Is the fuel filter clogged?

If the engine still lacks power take the water pump to a authorized KDAR service center.

Clean or replace the air filter.

Drain fuel from tank and carburetor and refill tank with fresh fuel.

Clean or replace fuel filter.

NO

NO

NO

YES

YES

YES

No Pump Output

Is the pump primed?

Is the suction hose collapsed, cut or punctured?

Is the strainer completely under water?

Is there an air leak at the connec-tor?

Is the strainer clogged?

Is there excessive head?

If the pump still has no output take the water pump to a authorized KDAR service center.

Prime the pump.

Replace the suction hose.

Put the Strainer and suction hose completely under water.

Replace sealing washer if missing or damaged. Tighten the hose con-nector.

Clean the strainer.

Relocate the pump and/or hoses to reduce head.

NO

NO

NO

NO

NO

NO

YES

YES

YES

YES

YES

YES

KDAR Company 18

Trouble Shooting

Low Pump Output

Is the suction hose collapsed, dam-aged, too long or too small a di-ameter?

Is there an air leak at the connec-tor?

Is the strainer clogged?

Is the discharge hose damaged, too long or too small a diameter?

Is the head marginal?

Replace the suction hose.

Replace the sealing washer if it is missing or damaged. Tighten the hose connector clamp.

Clean debris from the strainer.

Replace the discharge hose.

Relocate the pump and/or hoses to reduce the head.

YES

YES

YES

YES

YES

NO

NO

NO

NO

NO

If the pump still has no output take the water pump to a authorized KDAR service center.

High Altitude Operation At high altitude, the standard carburetor air-fuel mixture will be too rich. Performance will de-crease, and fuel consumption will increase. A very rich mixture will also foul the spark plug and cause hard starting. Operation at an altitude that differs from that at which this engine was certified, for extended periods of time, may increase emis-sions. High altitude performance can be improved by specific modifications to the carburetor. If you al-ways operate your engine at altitudes above 5,000 feet (1,500 meters), have a qualified mechanic per-form this carburetor modification. This engine, when operated at high altitude with the carburetor modifications for high altitude use, will meet each emission standard throughout its useful life.

Even with carburetor modification, engine horse-power will decrease about 3.5% for each 1,000-foot (300-meter) increase in altitude. The effect of altitude on horsepower will be greater than this if no carburetor modification is made. NOTICE: When the carburetor has been modified for high altitude operation, the air-fuel mixture will be too lean for low altitude use. Operation at altitudes below 5,000 feet (1,500 meters) with a modified carburetor may cause the engine to over-heat and result in serious engine damage. For use at low altitudes, have a qualified mechanic return the carburetor to original factory specifications.

KDAR Company 19

Warranty

KDAR Company, and its affiliates, warrants that the water pumps covered under this warranty are free from defects in material and workmanship for one year from the date of purchase. This warranty is extended to the original purchaser who uses the product in a consumer application (personal, resi-dential or household usage). All water pumps cov-ered under this limited warranty which are used in commercial applications (i.e. income producing) are warranted to be free from defects in material and workmanship for 90 days from the date of original purchase. The products covered under this warranty are the water pumps. KDAR Company, and its affiliates, will repair or replace, at KDAR’s sole discretion, parts found to be defective in material or workmanship within the warranty period. Warranty service will be sched-uled according to the normal work flow and busi-ness hours of the service center doing the work as well as the availability of replacement parts. All decisions from KDAR Company regarding this limited warranty shall be final. Original Purchaser’s Responsibility: 1. Retain the original cash register receipt as

proof of purchase. 2. Follow manual instructions regarding the care

and operation of your power washer. 3. If warranty work is required, DO NOT RE-

TURN THIS POWER WASHER TO THE RETAILER. Take the power washer to the nearest KDAR Authorized Service Center for evaluation. Visit www.hotmaxtorches.com or call KDAR Company M-F 8AM-5PM CST to locate the nearest Authorized Service Center.

Not Covered: 1. Transportation charges for sending or deliver-

ing the power washer to the Authorized Ser-vice Center or returning the repaired or re-placement power washer back to the customer. These charges are the responsibility of the cus-tomer.

2. Damages caused by ordinary wear, abuse, rain, freeze damage, negligence, accident or failure to operate or maintain the power washer in ac-cordance with the instructions in the operator’s manual supplied with the power washer.

3. Damage caused by unauthorized repair or al-terations.

Exclusions and Limitations: KDAR Company makes no other warranty of any kind, express or implied. Implied warran-ties, including warranties of merchantability and of fitness for a particular purpose, are hereby disclaimed. The warranty service de-scribed above is the exclusive remedy under this warranty; liability for incidental and conse-quential damages is excluded to the extent per-mitted by law. This warranty gives you specific legal rights, and you may have other rights which vary from state to state. Some states do not allow a disclaimer of im-plied warranties, or the exclusion of incidental and consequential damages, so the above disclaimers and exclusions may not apply to you. For warranty service or to obtain service parts or accessories: Call Toll Free: 1-866-939-9013 Or: Write: KDAR Company 15009 Manchester Rd #283 Ballwin, MO 63011

operatorâ€™s manual water pumps pw20, pw30, pw40

Documents