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Owner's Manual
M750143E
2.5 GPM, 3100 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
containing this Owner's Manual.
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.
Equipment Protection Quick Facts
Any Questions, Comments, Problems, or Parts Orders
Call Powerhorse Product Support 1-866-443-2576
ITEM NUMBER: 750143
SERIAL NUMBER: _____________
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Summary of Contents for Powerhorse M750143E
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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 750143 – REV E ........................30 PUMP EXPLOSION 797638 - REV E ......................... 31 PUMP PARTS LIST 797638 - REV E ......................... 32 PUMP KIT PARTS LIST 797638 - REV E ........................33 ENGINE EXPLOSION (799841)-REV E ........................34 ENGINE PARTS LIST (799841)-REV E ........................
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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 # 750143 FLOW OUTPUT PSI (bar) 3100 (214) GPM (l/min) 2.5 (9.4) Max Water Temp 140F (60C) ENGINE Engine Powerhorse Horsepower 212CC DIMENSIONS / COMPONENTS Length 25.5” Width 21” Height 38.5” Weight 68lbs Pump Oil Capacity 100 ml. (3.4 oz.) SUPPLIES REQUIRED (not included) Refer to the “Engine Manual”... -
Page 6: Component Identification
Component Identification 1. Pressure Washer Pump: Inspect for 10. Upper Gun Holder: Store gun here. loose/broken parts prior to each use. 11. Lower Gun Holder: Store lance here. 2. Pump Dipstick/Oil Fill: Add pump oil here. 12. Nozzles: Change nozzles for different spray 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 pressure washer base. occur at this time. The handle snaps into place. Wheel to Base Assembly FIG05934 1. Install wheels on the pressure washer base using: Handle •...
- Page 13 Step 3. Select Suitable Location Hose Holder Hook 6. Attach the hose holder hook to the handle. Moving and Handling • (4) Self-Tapping Screws Moving your pressure washer around • Use the handles to manually move the pressure washer. • Push the pressure washer in front of you has you walk.
- Page 14 Keep a fire extinguisher rated "ABC" nearby. Positioning: Keep it properly charged and be familiar with its 1. The pressure washer should be positioned 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: Operation
Operation Safety Rules for Operation NOTICE After you have checked and fueled the equipment Before starting the pressure washer, review the following general safety rules for operation: and positioned it in a suitable worksite, it is time to start your pressure washer. The following are the Conditions for Use procedures necessary for safe, successful operation Know how to stop. -
Page 16: Preparing For Operation
Preparing for Operation Never pull by hose. Do not move this machine by pulling on the hose. Hose or connections could fail and Make sure that any regular maintenance has been result in catastrophic high pressure release of fluid as performed as prescribed in “Maintenance &... -
Page 17: Check/Add Engine Oil
• Always place container on the ground to be Check/Add Engine Oil filled. Never fill the portable gas container while it is sitting inside a vehicle, trailer, trunk, Use the recommended oil type for your engine and or pick-up truck bed. expected ambient conditions. -
Page 18: Inspect Fuel System/Check For Leaks
Fill Engine Fuel Tank WARNING: High Pressure Fluid Injection Hazard Check the gasoline tank level. If needed, fill tank High-pressure fluid discharge from leaks (even pin- with fresh unleaded gasoline from a portable sized) or ruptured components can pierce skin and container: inject fluid into the body. - Page 19 Drawing water out of a tank may cause pump Black-Low pressure Chemicals cavitation and damage to your pump. This Please call Powerhorse Customer Service at pressure washer is designed for a pressurized 1-866-443-2576 to order additional nozzles. water source such as a city water faucet.
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Page 20: Prime The Water Supply
CAUTION: Chemicals Containing Muriatic Acid Certain chemicals, such as bleach or those containing muriatic acid, will cause pump damage if introduced upstream through the pump's water inlet. It mixes the cleaning chemical into a low pressure Prime the Water Supply spray. -
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. CAUTION: Warranty Void Running the pump dry will cause damage and void the warranty. 2. To prevent accidental spraying, engage the safety latch on spray gun trigger by rotating it to the FIG05949 locked position. -
Page 22: Shutdown
Procedure: 1. Install one of the high-pressure spray nozzle Spray Gun Safety Lock (always relieve system pressure first and follow When not spraying, use the spray gun safety lock instructions for attaching a nozzle). to prevent accidental high pressure discharge. 2. -
Page 23: Storage
Storage When you are finished using the pressure washer, you started. must prepare the sprayer for storage and store it in a 1. Drain the water from the high pressure hose and proper location. spray gun by depressing the trigger on the spray Between-Use Storage gun until all water drains out. -
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
Major repair. Major service, including the installation • or replacement of parts, should be performed only by a qualified service technician. Obtain factory approved parts from Powerhorse Product Support at 1-866-443- 2576. -
Page 26: Inspect Spray System
Inspect Spray System Inspect Fuel System Inspect spray system for damage and leaks before Inspect the engine fuel system and check for leaks each use. before each use. Do not start pressure washer until all needed repairs have been completed. Do not start pressure washer until all needed repairs have been completed. -
Page 27: Change Pump Oil
All mechanical equipment, no matter how well designed, Change the pump oil after the first 50 hours of use, will need maintenance and repairs. A Powerhorse and then after every 3 months or 500 hours of use after pressure washer is no exception. At times, a that. -
Page 28: Troubleshooting
Troubleshooting This section provides a list of the more frequently encountered pressure washer malfunctions, their causes and corrective actions. Some corrective actions can be performed by the operator or maintenance personnel, and others may require assistance of a qualified electrician or Service Center. ENGINE WILL NOT START Causes Solutions... -
Page 29: Parts Explosion- Model 750143 - Rev E
Parts Explosion- Model 750143 – Rev E... -
Page 30: Parts List - Model 750143 - Rev E
Parts List - Model 750143 – Rev E Ref# Part# Description Powerhorse 212cc Engine 799841 Bolt M6 x 40 795447 Soap Tank Cap 795448 Soap Tank 795449 Lower Frame 795450 M8 Lock Nut 795561 Foot, Frame 795451 M6 Screw 796647... -
Page 31: Pump Explosion 797638 - Rev E
Pump Explosion 797638 - Rev E... -
Page 32: Pump Parts List 797638 - Rev E
Pump Parts List 797638 - Rev E Item Description Part # Item Description Part # Bolt, Pump Flange 795498 O-ring 5.2X1.9 Kit 8 Pump Flange Kit 1 Spring Holder Kit 8 Radial shaft seal FB36-50-7 Kit 1 Small Pressure Spring Kit 8 O-ring 80X2.4 Kit 1... -
Page 33: Pump Kit Parts List 797638 - Rev E
Pump Kit Parts List 797638 - Rev E Kit Qty Kit # Description Item # Items Included Kit Part # Needed Pump basal flange Flange w/ Seal Kit 795475 Radial shaft seal FB36-50-7 O-ring 80X2.4 Oil Seal O-ring 15X2.2 Spacer Seal Kit 795476 O-ring 21.8X1.9... -
Page 34: Engine Explosion (799841)-Rev E
Engine Explosion (799841)-Rev E... -
Page 35: Engine Parts List (799841)-Rev E
Engine Parts List (799841)-Rev E Ref# Part # Description Ref# Part # Description CRANKCASE WIND SHIEL COMP. BALL BEARING BOLT M6X20 Kit #14 OIL SEAL FLYWHEEL ASSEMBLY GOVERNOR ASSEMBLY FAN,RECOIL STARTER SHAFT,GOVERNOR ARM Kit #8 PULLEY,STARTER WASHER,GOVERNOR ARM Kit #5 SHAFT IGNITION COIL ASSY Kit #12... -
Page 36: Engine Kit List (799841)-Rev E
Engine Kit List (799841)-Rev E Kit #1 Kit #2 Kit #3 Kit #4 Kit #5 Kit #6 Kit #9 Kit #10 Kit #7 Kit #8 Kit #11 Kit #12 Kit #14 Kit #13 Kit #15 Kit Ref # Kit Part # Description 795597 Drain Bolt Kit... -
Page 37: 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 38: 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 39 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. 2.
- Page 40 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.
- Page 41 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.
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Page 42: Limited Warranty
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 43 This page left intentionally blank...
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Page 44: California Proposition 65 Information
California Proposition 65 Information This product can expose you to chemicals including WARNING: 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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