DUROMAX XP18HP User Manual Download Page 58

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CUSTOMER SERVICE

DuroMax Power Equipment is committed to ensuring that our products perform when they need
to. Our generators are your lifeline in the event of an emergency. Should you have any problems,
please contact our customer service department:

DUROMAX POWER EQUIPMENT

5800 Ontario Mills Parkway

Ontario, CA 91764

Customer Service: 844-DUROMAX

Customer Service Hours: 8-5 pm PST Mon-Fri

Website: www.duromaxpower.com

Email: [email protected]

Summary of Contents for XP18HP

Page 1: ... to ensure the accuracy of the information in this manual We reserve the right to change this product at any time without prior notice 5800 Ontario Mills Pkwy Ontario CA 91764 USA www duromaxpower com Call our Customer Care Team Toll Free 8 5pm PST Mon Fri 844 DUROMAX REV XP18HP_rev06172022 XP18HP U S E R M A N U A L ...

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Page 3: ...Filter 30 Spark Plug Maintenance 32 Emptying the Gas Tank 34 Storing the Engine for Same Day Use 36 Storing the Engine for Use Within 30 Days 37 Storing the Engine for Longer Than 30 Days 38 Maintenance and Care 3 Check the Oil 20 Check the Fuel Level 21 Starting the Engine 22 Starting the Engine 2 Adding Oil 16 Adding Gasoline 17 Engine Setup 5 Specifications 43 Adjustment Torque and Timing Speci...

Page 4: ...For more information and resources on this model scan the QR code below to link to our website product information page CONTENTS 7 54 Warranty 8 58 Customer service 6 Troubleshooting 51 ...

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Page 6: ...y unavailable Equipment like table saws sanders and work lights are a necessity and portable power can play a critical role in getting a job done successfully and efficiently DUROMAX FOR PLAY Camping outdoors in a remote location can get one in touch with nature and allow them to forget the stress of the day to day grind Here portable power can provide comfort as well as safety With portable power...

Page 7: ... Powering Everyone Anywhere STOP Please do not return to the store DuroMax representatives are ready to help you with any questions concerns or issues about your new product We can guide you through assembly start up and how to operate your new generator We want you to be able to put your new generator to use right away CALL US BEFORE YOU CONSIDER RETURNING THE PRODUCT 1 844 DUROMAX TOLL FREE Engi...

Page 8: ... 65 C Do not touch hot surfaces Pay attention to warning labels on the engine denoting hot parts of the machine Allow engine to cool several minutes after use before touching engine or areas which heat during use GENERAL SAFETY PROCEDURES Please familiarize yourself with the following safety symbols and words DANGER Indicates a hazard that will result in serious injury or death if instructions are...

Page 9: ...e on a firm level surface Always turn the engine off before refueling Allow engine to cool for at least 2 minutes before removing the fuel cap Loosen cap slowly to relieve pressure in the tank Do not overfill the gas tank Gas may expand during operation Do not fill to the top of the tank Always check for spilled gas before operating Empty the gasoline tank before storing or transporting the engine...

Page 10: ...In addition to the above safety notices please familiarize yourself with the safety and hazard markings on the engine GENERAL SAFETY PROCEDURES CONTINUED 1 5 10 ...

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Page 12: ... or service in the future If you have a paper receipt staple it here for easy reference If you purchased the unit online save the email receipt where you can access it and record your details here for convenience in the future Purchase Date ____________________________________________ Order Number ____________________________________________ Retailer Name __________________________________________...

Page 13: ...pull the recoil starter rope 6 Start Switch An easy to use switch used to turn the engine on or off 7 Muffler A noise dampening component that helps lower the engine decibel level 8 Engine Shaft A 1 diameter 2 3 4 long all metal shaft with a 1 4 key way 9 Oil Fill An easy access location to fill the oil for the engine 10 Oil Drain Plug An easy to remove oil plug that is used to drain the oil ENGIN...

Page 14: ...k to see that all of the following items are included with your engine Note Actual tools may differ in appearance or design from image shown Spark Plug Wrench Oil Funnel Used in spark plug maintenance inspection and installation Used to add oil to the engine without messy spills ...

Page 15: ...ENGINE SETUP Proper setup of your engine will get you going as soon as possible while making sure you and your equipment are safe and cared for 15 ...

Page 16: ...the end of the stick d Replace oil filler cap 1 Step 1 Adding Oil Model Number XP18HP Engine Oil Capacity 37 2 fl oz 1 1 L 16 WARNING DO NOT overfill the crankcase This may damage the motor and shorting overall life of your Engine Engine oil recommended SAE 10W 30 Viscosity varies with regions and temperatures Choose your oil viscosity using the chart to the left A small amount of oil from factory...

Page 17: ...IGHER Never use an oil gasoline mixture Never use old gas Avoid getting dirt or water in the fuel tank Gas can age in the tank and make it hard to start up the generator in the future Never store generator for extended periods of time with fuel in the tank Model Number XP18HP Gas Tank Capacity 1 7 US Gal 6 4L DANGER DO NOT OVERFILL THE GAS TANK OVERFILLING CAN RESULT IN A FIRE EXPLOSION OR DEATH 1...

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Page 19: ... still steps you should take to prepare it for operation each time you use it IMPORTANT At this point you should be familiar with the procedures described in the first portion of this section entitled ENGINE SETUP If you have not yet read this section go back and read it now 19 ...

Page 20: ...e oil filler dipstick cap c With a dry cloth wipe the oil off of the stick on the inside of the cap d Insert the dipstick as if you were replacing the cap and then remove it again There should now be oil on the stick If there is no oil on the stick or oil only at the very end of the stick you should add oil until the engine crankcase is filled see Adding Oil portion of the Maintenance section e Be...

Page 21: ...K OVERFILLING CAN RESULT IN A FIRE EXPLOSION OR DEATH 1 5 WARNING Gasoline and gasoline fumes are highly flammable Do not fill the tank near an open flame Always allow the engine to cool for several minutes before refueling DO NOT overfill the fuel tank Fuel expands when shaken or heated ALWAYS leave 11 2 space or more at the top of the tank ALWAYS use fresh fuel or stabilized fuel Old gasoline ol...

Page 22: ... is located above and to the right of the choke lever Adjust the throttle lever to the low speed position 2 4 Turn engine switch to ON Turn the engine switch to the ON position to allow the engine to start 3 STARTING THE ENGINE CONTINUED 22 Move fuel valve to ON The gas valve is located above the carburetor bowl Move the gasoline fuel valve lever all the way to the right hand position to allow gas...

Page 23: ...t the throttle lever After allowing the engine to preheat move the choke lever to the right hand side to the RUN position to steady the idle speed and run the engine Adjust the throttle lever to the proper position for the desired speed and the engine is ready for use 6 7 CAUTION Release the recoil handle only after the cord has retracted Releasing the recoil handle while extended may cause harm t...

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Page 25: ...ntenance and storage of your engine is essential to ensure trouble free use of your engine when you need it By following the maintenance and care requirements you can keep your engine running smooth and efficient for years to come 25 ...

Page 26: ...AIR CLEANER CHECK CHECK CHANGE CHANGE SPARK PLUG CLEAN ADJUST CLEAN ADJUST SPARK ARRESTOR CHECK CLEAN IDLE SPEED CHECK ADJUST VALVE CLEARANCE CHECK ADJUST FUEL TUBE CHECK CHECK REPLACE FUEL TANK FILTER CLEAN COMBUSTION CHAMBER CLEAN 26 WARNING Improper maintenance or failure to correct a problem before operation can cause a malfunction in which you can be seriously injured or killed Always follow ...

Page 27: ...Period As the best practice for any new combustion motor it s recommended to perform the break in procedure as follows Run the engine for the first 6 8 hours on conventional oil then change the oil After the break in period synthetic oil may be used During the break in period of the first 6 8 hours keep the engine speed under 50 for optimal results Check and clean the air filter if necessary after...

Page 28: ...the oil filler dipstick cap c With a dry cloth wipe the oil off of the stick on the inside of the cap d Insert the dipstick as if you were replacing the cap and then remove it again There should now be oil on the stick If there is no oil on the stick or oil only at the very end of the stick you should add oil until the engine crankcase is filled see Adding Oil portion of the Maintenance section e ...

Page 29: ...o an approved oil disposal container Contact your local auto parts store for information on oil disposal 2 Replace drain plug Replace the oil drain plug and tighten with a 12 mm hex wrench 3 CAUTION Worn out or dirty oil does not cool the engine properly and can lead to catastrophic engine damage In addition to regular oil changes it is necessary to drain the oil from the crankcase if it has becom...

Page 30: ...NANCE AND CARE CONTINUED Changing the Air Filter Remove filter cover wing nut Remove filter cover Remove old filter element Remove the wing nut located on the top of the air filter cover Remove the plastic air filter cover by lifting the cover upwards to expose the air filter element Remove the wing nut on top of the air filter element and slide filter element off center bolt This filter is paper ...

Page 31: ...t and replace wing nut Tighten wing nut hand tight to keep filter in place 4 Replace filter cover Replace plastic air filter cover over the air filter base 5 6 Secure filter cover Fasten the air filter cover with the air filter cover wing nut and tighten about hand tight ...

Page 32: ...rk plug cap to remove it Unscrew the spark plug from the engine using the spark plug wrench included with this product Visually inspect the spark plug If it is cracked or chipped discard and replace it with a new spark plug We recommend using an F6RTC spark plug such as NGK BPR6ES 1 2 3 CAUTION Improper maintenance may cause reduced fuel economy misfires trouble starting or damage to the spark plu...

Page 33: ...an and re gap If you are re using the spark plug use a wire brush to clean any dirt from around the spark plug base and then re gap the spark plug 5 Install spark plug Replace spark plug cap Screw the spark plug back into its place on the engine using the spark plug wrench Replace the spark plug cap 6 7 ...

Page 34: ...ntainer to catch the gasoline under the drain port location 1 2 3 CAUTION Do not store fuel from one season to another Gasoline sold at the pump today contains additives such as ethanol that even when stored properly may damage the fuel system components If you have been using gasoline in your engine before storing your engine for extended periods of time you should drain your engine fuel tank of ...

Page 35: ...s tank is empty 4 Shut fuel valve OFF Replace carburetor drain bolt Store emptied gasoline Once the gasoline is fully drained move the fuel valve back to the OFF position Reinstall the carburetor drain bolt Store the emptied gasoline in a suitable place and add fuel stabilizer to keep fuel fresh and usable 5 6 7 35 ...

Page 36: ...store the engine 3 Storing the Engine for Same Day Use CAUTION Do not obstruct any ventilation openings and keep the engine in a cool dry area 36 Run the engine Turn engine switch to OFF Allow the engine to run for 3 5 minutes Move the engine switch to the OFF position to shut the engine off 1 2 ...

Page 37: ...1 Shut fuel valve OFF and run dry Turn the engine switch OFF Add fuel stabilizer and store Shut the fuel valve OFF and allow engine to run until it stalls out Move the engine switch to the OFF position to shut the engine off Add fuel stabilizer to gas remaining in tank and store the engine 2 3 4 37 ...

Page 38: ...gas tank Shut the fuel valve OFF and allow engine to run until it stalls out Move the engine switch to the OFF position to shut the engine off Fully drain your gas tank as shown in Emptying the Gas Tank on page 34 35 2 3 4 MAINTENANCE AND CARE CONTINUED 38 Run the engine Allow the engine to run for 3 5 minutes 1 ...

Page 39: ... oil directly into the spark plug hole and pull the recoil to lubricate cylinder After lubricating cylinder reinstall the spark plug as shown in Spark Plug Maintenance on page 33 6 39 Store engine The engine is ready to be stored in a cool dry area 7 CAUTION Do not obstruct any ventilation openings and keep the engine in a cool dry area ...

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Page 41: ...SPECIFICATIONS A quick reference to useful information on your new DuroMax engine please see this section for more details on this engine s specifications 41 ...

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Page 43: ...0 RPM Dimensions LENGTH 19 5 in WIDTH 17 5 in HEIGHT 19 3 in Engine Type 4 Stroke OHV Forced Air Ignition System Non Contact Transistor Lubrication Mode Splash Starting Type Recoil Shaft Rotation Counter Clockwise Shaft Size 1 Diameter 2 3 4 Long 1 4 Keyway Shaft End 3 8 Size 24 UNF Drilled and Tapped Center of Shaft to Base 5 Bearing Type Stainless steel ball bearing Cylinder Sleeve Type Cast iro...

Page 44: ...30 Exhaust Closed Timing ATDC 10 Torque Value Timing Distribution Spark Plug Clearance 027 031 in 0 7 0 8 mm Spark Plug Type F6RTC Torch F6TC Torch BPR6ES NGK RN9YC Champion WR7DC Bosch W20EPR U Denso Valve Clearance Cold Intake 006 in 001 in 0 15mm 0 02mm Exhaust 008 in 001 in 0 20mm 0 02mm Carburetor Idling 1800 300 rpm Adjustment Specification SPECIFICATIONS CONTINUED 44 Adjustment Torque and T...

Page 45: ...5 16 24 UNF 2B 29 0 90 119 6 106 0 58 4 44 7 0 44 7 58 4 103 58 4 44 7 44 7 71 5 4X3 8 16 UNC 2B 3 2 Ø146 0 063 0 0 58 4 44 7 35 0 35 44 7 71 5 2 X M 2 0 X 2 5 H 6 20 3 2 24 44 7 41 3 0 41 3 44 7 103 CRANK COVER Ø29 7 45 ...

Page 46: ...4 7 71 5 4X3 8 16 UNC 2B 3 2 Ø146 0 063 0 0 58 4 44 7 35 0 35 44 7 71 5 2 X M 2 0 X 2 5 H 6 20 3 2 24 44 7 41 3 0 41 3 44 7 103 7 3 3 7 3 88 5 CRANKCASE COVER EDGE R12 7 3 2 3 2 3 2 1 5 6 3 6 28 32 56 72 3 2 60 C1 Ø29 7 3 8 24UNF2B TAP Ø11 5 0 5 1 5 0 5 1 5 6 3 0 8 BOTH SIDES 0 5 1 5 R0 1 R0 35 C0 1 0 35 6 3 0 0 05 21 82 0 13 0 Ø25 4 0 025 0 SPECIFICATIONS CONTINUED 46 ...

Page 47: ...Wiring Diagram 47 ...

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Page 49: ...TROUBLESHOOTING This section of the manual is to help you troubleshoot problems with your engine 49 ...

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Page 51: ...el Add fuel Fuel is old or contaminated Change fuel Spark plug is dirty Clean spark plug Spark plug is broken Replace spark plug Engine is not level Move engine to a level surface Oil is low Add change oil Engine starts but shuts off after running for a short time Oil level is low Add change oil Fuel is old or contaminated Change fuel Engine is on incline exceeding 15 Disconnect low oil sensor 51 ...

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Page 53: ...WARRANTY This section of the manual is to help you understand your warranty 53 ...

Page 54: ...ATIONS The U S Environmental Protection Agency EPA California Air Resources Board and DuroMax Power Equipment are pleased to explain the emissions control system s warranty on your 2022 2023 small off road engine In California new small off road engines must be designed built and equipped to meet the State s stringent anti smog standards DuroMax Power Equipment must warrant the emissions control s...

Page 55: ... all applicable regulations adopted by the Air Resources Board and 2 Free from defects in materials and workmanship that causes the failure of a warranted part for a period of two years The warranty on emissions related parts will be interpreted as follows 1 Any warranted part that is not scheduled for replacement as required maintenance in the Owner s Manual must be warranted for the warranty per...

Page 56: ...the exhaust or evaporative emissions of the engine or emissions control system must be used in the performance of any warranty maintenance or repairs and must be provided without charge to the owner Such use will not reduce the warranty obligations of DuroMax Power Equipment 10 Add on or modified parts that are not exempted by the Air Resources Board may not be used The use of any non exempted add...

Page 57: ... Fuel Tank 2 Fuel Cap 3 Fuel Line for liquid fuel and fuel vapors 4 Fuel Line Fittings 5 Clamps 6 Pressure Relief Valves 7 Control Valves 8 Control Solenoids 9 Electronic Controls 10 Vacuum Control Diaphragms 11 Control Cables 12 Control Linkages 13 Purge Valves 14 Gaskets 15 Liquid Vapor Separator 16 Carbon Canister 17 Canister Mounting Brackets 18 Carburetor Purge Port Connector Note As they rel...

Page 58: ...are your lifeline in the event of an emergency Should you have any problems please contact our customer service department DUROMAX POWER EQUIPMENT 5800 Ontario Mills Parkway Ontario CA 91764 Customer Service 844 DUROMAX Customer Service Hours 8 5 pm PST Mon Fri Website www duromaxpower com Email customerservice duromaxpower com ...

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Page 60: ...5800 Ontario Mills Parkway Ontario CA 91764 United States 844 DUROMAX REV XP18HP_rev06172022 ...

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