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M1574200B
4.0 GPM, 4000 PSI Pressure Washer — EPA, CARB-Compliant
Instructions for Installation/Set-up, Operation, Maintenance, & Storage
This pressure washer produces cold water high pressure spray. Cleaning chemicals may be incorporated into the
spray if desired. The pressure pump for this equipment is powered by a gasoline internal combustion engine.
WARNING: SPECIAL HAZARDS
• CO Poisoning: Exhaust from engine contains carbon monoxide, a poisonous gas that can cause carbon monoxide
poisoning and possible death if inhaled.
• Injection Injury: High-pressure spray can pierce skin and underlying tissues, leading to serious injury and possible
amputation. Such an injection injury can result in blood poisoning and/or severe tissue damage.
• Flying Debris: High-pressure spray can cause flying debris and possible surface damage.
• Electric shock: Operating equipment in wet conditions or near water can cause electric shock.
• Chemical Exposure: Cleaning chemical vapors or contact with skin may be hazardous.
• Fire/Explosion: Engine sparking can ignite fuel or other flammable liquids or vapors in the vicinity. Hot exhaust from engine
can ignite combustible materials. Always keep a fire extinguisher rated "ABC" nearby.
• Burns: Pressure Washer pump and engine are hot surfaces that can cause burn injuries.
Detailed safety information about these hazards appears throughout this manual.
Inspect Upon Delivery: FIRST! Inspect for missing or damaged components. See "Initial Set-Up/Installation" section
for where to report missing or damaged parts.
Add Engine Oil: Engine is shipped without oil. See the "Engine Manual" section of this manual for instructions on
capacity and viscosity recommendations.
Replace Temporary Shipping Plug: Pump is shipped with oil but with temporary shipping plug. Check pump oil
level before starting and replace temporary shipping plug with permanent breather plug provided within plastic bag
attached to the pump.
Water Flow Requirements: Make sure your supply water flow rate is 20% higher than the pressure washer's flow
rate (see "Operations", section for detail), and that your water is clean and particle free.
Chemical Spraying: Use only approved pressure washer chemicals designed for high-pressure use. Use soap
adjustment knob to regulate cleaning power (on select units).
Storage: Do not allow water to freeze in the pump, hose, or spray gun(s). See "Storage" for more information.
Maintenance Schedule: Engine and pump require periodic inspection and servicing to keep pressure washer
functioning efficiently. See "Maintenance Schedule Summary" for frequency of servicing.
Owner's Manual
Equipment Protection Quick Facts
Any Questions, Comments, Problems, or Parts Orders
Call Powerhorse Product Support 1-866-443-2576
ITEM NUMBER: 1574200
SERIAL NUMBER: _____________
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Summary of Contents for Powerhorse M1574200B
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Page 1: Equipment Protection Quick Facts
Storage: Do not allow water to freeze in the pump, hose, or spray gun(s). See “Storage” for more information. Maintenance Schedule: Engine and pump require periodic inspection and servicing to keep pressure washer functioning efficiently. See “Maintenance Schedule Summary” for frequency of servicing. Any Questions, Comments, Problems, or Parts Orders Call Powerhorse Product Support 1-866-443-2576... -
Page 2: Table Of Contents
Table of Contents Equipment Protection Quick Facts ............................1 TABLE OF CONTENTS ..............................2 ABOUT YOUR PRESSURE WASHER ......................... 4 SPECIFICATIONS ................................ 5 COMPONENT IDENTIFICATION ..........................6 SAFETY ..................................7 Hazard Signal Word Definitions ............................7 ON PRODUCT LABELS ............................... 8 Decal Locations.................................. - Page 3 PARTS LIST - MODEL 1574200 – REV B ........................29 PUMP PARTS EXPLOSION – 798747 ........................30 PUMP PARTS LIST - 798747 ............................ 31 PUMP KITS LIST - 798747 ............................32 ENGINE PARTS EXPLOSION – 800287 ........................33 ENGINE PARTS LIST - 800287 ..........................34 ENGINE KITS LIST - 800287 .............................
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Page 4: About Your Pressure Washer
About Your Pressure Washer Thank you for purchasing a Powerhorse Pressure Site Location. Intended for outdoor use only. Washer! It is designed for long life, dependability, and Personal Protection. Wear safety apparel during top performance. operation, including safety glasses with side and top Intended Use. -
Page 5: Specifications
Specifications Model # 1574200 FLOW OUTPUT PSI (bar) 4000 (275.8) GPM (l/min) 4.0 (15.1) Max Water Temp 140F (60C) ENGINE Engine Powerhorse Horsepower 420CC DIMENSIONS / COMPONENTS Length 29” Width 24” Height 46” Weight 126 lbs. Pump Oil Capacity 16 ounces... -
Page 6: Component Identification
Component Identification 1. Pressure Washer Pump: Inspect for 11. Lower Gun Holder: Store lance here. loose/broken parts prior to each use. 12. Nozzles: Change nozzles for different spray 2. Pump Dipstick/Oil Fill: Add pump oil here. patterns to facilitate cleaning performance. 3. -
Page 7: Safety
Safety Hazard Signal Word Definitions This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death. DANGER (red) indicates a hazardous situation, which if DANGER not avoided, will result in death or serious injury. -
Page 8: On Product Labels
On Product Labels Decal Locations WARNING: ALWAYS make sure safety labels are in place and in good condition. If a safety label is missing or not legible, order new labels from Powerhorse Product Support at 1-866-443-2576 On-Product Warning Labels Location Part numbers... -
Page 9: Decals
Decals To order replacement safety labels, call Powerhorse Product Support at 1-866-443-2576... - Page 10 Decals Continued To order replacement safety labels, call Powerhorse Product Support at 1-866-443-2576...
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Page 11: Initial Set-Up
Initial Set-Up Step 1. Inspect & Unpack Upon receiving your item check for missing or damaged parts. See “Component Identification” section of this manual for a diagram of the pressure washer and its components. For missing or damaged components, please contact Product Support at 1-866-443-2576. •... - Page 12 Step 2. Assembly Handle to Base Assembly Note: Remove contents from box and assembly can 3. Install handle to the base assembly using: occur at this time. (2) M8 x 46 Bolts (2) Flat Washers (2) M8 Lock Nuts Wheels to Base Assembly Handle 1.
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Page 13: Outdoor Use Only
Hose Hook Bracket Step 3. Select Suitable Location 6. Attach the hose hook bracket to the handle using hardware supplied in the manual bag: Moving and Handling (2) M6x35 Bolts Moving your pressure washer around • Use the handles to manually move the pressure Handle Hose washer. - Page 14 Positioning: Keep a fire extinguisher rated "ABC" nearby. Keep 1. The pressure washer should be positioned it properly charged and be familiar with its use. on a firm, level (less than 3 degree slope), heat-resistant surface with good drainage Place the unit so that the exhaust fumes will not and a nearby water supply.
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Page 15: Safety Rules For Operation
Operation Safety Rules for Operation Conditions for Use Know how to stop. Be thoroughly familiar with proper After you have checked and fueled the equipment use of the equipment and all controls and connections. and positioned it in a suitable worksite, it is time to Know how to stop the pressure washer and start your pressure washer. -
Page 16: Preparing For Operation
Preparing for Operation result in catastrophic high pressure release of fluid as well as hose whipping. Make sure that any regular maintenance has been Avoid sharp objects. Keep hose away from sharp performed as prescribed in “Maintenance & Repair” objects. Bursting hoses may cause injury. section. -
Page 17: Check/Add Engine Oil
• Always place container on the ground to be filled. Never fill the portable gas container while it is sitting inside a vehicle, trailer, trunk, Check/Add Engine Oil or pick-up truck bed. • Dissipate static charge from your body before Use the recommended oil type for your engine and beginning the fueling process by touching a expected ambient conditions. -
Page 18: Inspect Fuel System/Check For Leaks
4. Store extra gasoline in a cool, dry place in a UL listed tightly sealed container. Connect Hoses, Water Supply, and Spray Inspect Fuel System/Check for Leaks Nozzle Inspect the engine fuel system and check for leaks Position Pressure Washer for Use before each use. - Page 19 Black-Low pressure Chemicals coupler. The collar should slide over the ball Please call Powerhorse Customer Service at bearings. 1-866-443-2576 to order additional nozzles. Spray Gun Note: You must use the low pressure black nozzle Female Coupler for spraying chemicals.
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Page 20: Prime The Water Supply
3. Release the collar, making sure it springs back and The introduction of cleaning chemicals via the chemical re-seats to its original (non-retracted) position. injection point affords the following advantages: Check the connection by pulling on the nozzle to It protects the pump from damage because no •... -
Page 21: Start-Up Procedures
Pump Components Start-Up Procedures Start the Engine to Power the Pump 1. Make sure water supply is connected and primed. Pressure Adjustment (Unloader) CAUTION: Warranty Void Running the pump dry will cause damage and void the Chemical Injector warranty. Water Outlet 2. -
Page 22: Shutdown
Procedure: Spray Gun Safety Lock 1. Install one of the high-pressure spray nozzle When not spraying, use the spray gun safety lock (always relieve system pressure first and follow to prevent accidental high pressure discharge. instructions for attaching a nozzle). 2. -
Page 23: Storage
Storage When you are finished using the pressure washer, you 1. Drain the water from the high pressure hose and must prepare the sprayer for storage and store it in a spray gun by depressing the trigger on the spray proper location. -
Page 24: Prepare Engine For Long Term Storage
Prepare Pressure Washer for Storage Prepare Engine for Long Term Storage Prepare the pressure washer for storage. First prepare the engine for long term storage if you will not be using the pressure washer for more than 1. Make sure the engine start switch is OFF. 30 days. -
Page 25: Maintenance & Repair
Inspect spray system for damage and leaks before qualified service technician. Obtain factory approved parts from Powerhorse Product Support at 1-866-443- each use. 2576. Do not start pressure washer until all needed repairs... -
Page 26: Inspect Fuel System
damaged fuel tank, or • defective gasoline shut-off valve. • WARNING: High Pressure Fluid Injection Hazard Perform Engine Maintenance High pressure fluid discharge from leaks (even pin-sized) or As specified in the “Engine Manual” section. ruptured components can pierce skin and inject fluid into the Engine maintenance items include: body. -
Page 27: Troubleshooting
At times, a Powerhorse pressure washer may become inoperable because repairs are required. Powerhorse Product Support will assist in these repairs as needed, but if an inoperable pressure washer creates a major expense to your business, then we strongly recommend the following: Have a staff person become familiar with the mechanical operation of the pressure washer and capable of •... -
Page 28: Parts Explosion - Model 1574200 - Rev B
Parts Explosion - Model 1574200 – Rev B... -
Page 29: Parts List - Model 1574200 - Rev B
Parts List - Model 1574200 – Rev B Ref # Part # Description Engine 800287 M6 x 40 Bolt 795447 Soap Tank Cap 795448 Soap Tank 798737 Frame Base 798738 M8 Lock Nut 795561 Foot, Frame Isolating 795451 M6×45 Bolt 796647 Washer 796648... -
Page 30: Pump Parts Explosion - 798747
Pump Parts Explosion – 798747... -
Page 31: Pump Parts List - 798747
Pump Parts List - 798747 Ref # Description Part # Ref # Description Part # Nut, M6 * AAAR1060120 Ring AAAR1260790 Screw, M6x25 * AAAR2840970 Ring Insert * AAAR1980390 Bearing AAAR1780490 Spring Retainer * AAAR1980220 Breather Plug/Dipstick AAAR880130 Spring * AAAR2760410 Piston Ø... -
Page 32: Pump Kits List - 798747
Pump Kits List - 798747 Kit # Kit Description Part Ref # Parts n Kit Parts Qty Kit Order Qty AAAR42666 Valve Kit Complete Valve AAAR2187 Piston Kit Piston Oil Seal, Piston Oil Seal AAAR2188 Oil Seal Kit O-ring, Cover Ring Water Seal Anti-Extrusion Ring... -
Page 33: Engine Parts Explosion - 800287
Engine Parts Explosion – 800287... -
Page 34: Engine Parts List - 800287
Engine Parts List - 800287 Ref # Part # Description Ref # Part # Description 795592 SPARK PLUG CRANKCASE ROD, PUSH BALL BEARING Kit #13 SHROUD OIL SEAL Kit #7, Kit #15 BOLT M6X12 SEAL, GOVERNOR ARM SHAFT COVER COMP, CYLINDER HEAD SHAFT, GOVERNOR ARM Kit #6 PACKING, HEADCOVER... -
Page 35: Engine Kits List - 800287
Engine Kits List - 800287 Kit #2 Kit #3 Kit #5 Kit #1 Kit #4 Kit #8 Kit #10 Kit #7 Kit #9 Kit #6 Kit #13 Kit #12 Kit #11 Kit #14 Kit #15 Kit #16 Kit Ref # Kit Part # Description Kit Ref #... -
Page 36: Engine Manual
Engine Manual WARNING BEFORE operating the engine, be sure to read this section of the manual, otherwise injury to personnel or damage to equipment may occur. 1. Fuel Valve Engine When the fuel valve is in the ON position, fuel is allowed to flow from the fuel tank to the carburetor. -
Page 37: Maintenance Schedule
Before First month Every 3 Every 6 Every year Maintenance REGULAR SERVICE PERIOD each or 20 Hrs. months or months or or 300 schedule 50 Hrs. 100 Hrs. Hrs. Check level ○ Engine oil Change ○ ○ Check ○ Air filter Clean ○(1) ○(1) - Page 38 Oil draining WARNING: Burn Hazard and checking Never open oil port while engine is running. Hot oil can spray over face and body. oil level 1. Operate the pressure washer for 3 to 5 minutes to thin oil for easier draining.
- Page 39 Clean air WARNING filter Never run the pressure washer without the air filter. Rapid engine wear will result. 1. Remove the air cleaner outside cover (A). Be careful to prevent dirt and debris from falling into the air cleaner assembly. 2.
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Page 40: Removal From Storage
1-866-443-2576 – Powerhorse. Please note, engines with the high-altitude kit installed operated at lower altitudes could cause severe engine damage and affect emissions compliance. When modified, a tag or decal should be added to the product stating that a high-altitude kit was installed and to remind you to re-service the carburetor (re-jet) when operating in lower altitude environments. -
Page 41: Limited Warranty
Powerhorse approved facility is the responsibility of the buyer and not covered under warranty. Transportation costs to and from service center is the responsibility of the customer. In addition to the normal warranty, Powerhorse shall warrant any normal wear item from defects in material or workmanship for a period of 90 days from the date of purchase by user. -
Page 42: California Proposition 65 Information
California Proposition 65 Information WARNING: This product can expose you to chemicals including gasoline engine exhaust, which is known to the State of California to cause cancer, and carbon monoxide, which is known to the State of California to cause birth defects or other reproductive harm.
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