INVERTER GENERATOR 3850 WATT GEN3850W120VD IMPORTANT ─ READ THE USER’S MANUAL BEFORE OPERATION 1
INTRODUCTION Thank you for purchasing this Inverter Generator from AIMS Power. Before using this product, read the manual thoroughly and carefully, follow the instructions and all safety warnings. This will ensure the safety of yourself and others around you. The inverter generator ships without gas or oil. Do not operate until all checks have been made according to this manual. YOU MUST ADD OIL AND GAS TO OPERATE. CHECK OIL AND GAS LEVELS OFTEN. WARRANTY VOIDED IF PROPER CARE ISN’T TAKEN.
WARNING! READ AND UNDERSTAND THIS MANUAL BEFORE OPERATING THE INVERTER GENERATOR. THE GENERATOR NEEDS OIL AND GAS. OPERATING WITHOUT PROPER OIL AND GAS WILL VOID ALL WARRANTIES. SAFETY INFORMATION EXHAUST FUMES ARE POISONOUS Never operate the engine in a closed area or it may cause unconsciousness and can cause death within a short period of time. Operate the engine in a well-ventilated area. Gasoline and liquefied petroleum gas (propane) are highly flammable and toxic.
ENGINE AND MUFFLER MAY BE HOT Place the generator out of reach so passers-by and children are not likely to touch the generator. Avoid placing any flammable materials near the exhaust outlet during operation. Keep the generator at least 3 ft from buildings or other equipment, or the engine may overheat. Avoid operating the engine with a dust cover. Be sure to carry the generator only by its carrying handle. Put the generator on flat ground, allowing generator to vent heat freely.
SAFETY SYMBOLS Caution - The user should be aware of a general hazard. Dangerous Voltage Flammable Hot Surface - Do not touch.
CONTROL FUNCTIONS (1) Engine switch (2) Output reset (3) Economy control switch (4) Battery switch (5) Digital display meter (6) DC breaker (7) AC breaker 30A (8) AC protector 20A (9) Parallel outlets (10) Ground (earth) terminal (11) 120V OUTPUT (12) RV socket (13) USB output (14) DC 12V output (15) Choke (16) Fuel selector switch (17) Recoil starter (18) Connection for LP (19) Fuel meter (20) Fuel tank (21) Fuel filter (22) Fuel tank cap (23) Carrying handle (24) Battery (25) Muffl
OIL WARNING SYSTEM . FIG. 2 FIG.2 When the oil level falls below the lower level, the engine stops automatically. Unless you refill with oil, the engine will not start again. FUEL SELECTOR SWITCH. FIG. 3 ① GASOLINE Shift to gasoline operation, the gasoline fuel valve is open. ② LPG Shift to LPG operation, the gasoline fuel valve is closed, FIG.3 LPG hose quick connect inlet ready for operation. ENGINE SWITCH. FIG.4 The engine switch controls the ignition system. ① START FIG.
AC OVERLOAD BREAKER The AC overload breaker will trip when the load exceeds the rated output power of the generator. Reduce the AC load to within the rated output limit of the generator then press ON to reset. OUTPUT RESET. FIG.7 Push reset button for 2 seconds, the generator’s AC will FIG.7 recover. NOTE: Reduce the load of generator to ensure that the total load is within the rated power. FIG.8 CHOKE. FIG.8 ① RUN ② START . DIGITAL DISPLAY METER. FIG.9 The digital display meter shows the voltage, FIG.
BATTERY SWITCH. FIG.10 The battery switch controls the circuit of the start motor and FIG.10 carburetor solenoid ① ON Turn the battery switch to ON, the circuit of the start motor and carburetor solenoid is connected. ② OFF Turn the battery switch to OFF, the circuit of the start motor and carburetor solenoid is disconnected. CAUTION: Always turn the battery switch to the “OFF” position when unit is not in use, this will stop the battery from being drained.
PRE-OPERATION CHECK Pre-operation checks should be made each time the FIG.11 E generator is used. F CHECK ENGINE FUEL Make sure there is sufficient fuel in the tank. FIG.11 If fuel is low, refill with unleaded automotive gasoline. Be sure to use the fuel filter screen on the fuel filter neck. Recommended fuel: Unleaded gasoline. Fuel tank capacity: 2.3 GAL WARNING: Do not refill tank while engine is running or hot. Close fuel cock before refueling.
GROUND (Earth) FIG.14 WARNING: • We recommend grounding your generator before use. 8 AWG wire and a small metal earth spike. The wire and earth spike are not supplied with the unit. FIG.14 CONNECT BATTERY (for electric starting system) • Loosen the screw and remove the battery holder. FIG.15 Bolt red wire to the positive (+) terminal and the black wire to the negative (-) terminal of the battery. Do not reverse these positions. • Be sure the battery is securely installed on the battery mount tray.
OPERATION WARNING: The generator is shipped without engine oil. Fill with oil or it will not start. CAUTION FIG.16 Do not tilt the generator when adding engine oil. This could result in overfilling and damage to the engine, voiding the warranty. If motor runs without oil warranty is voided. STARTING THE ENGINE NOTE: Do not connect electric appliance before starting the engine. RUNNING WITH GASOLINE Recoil Start 1. FIG.17 Shift the fuel selector switch to GASOLINE position. FIG.16 2.
6. Warm up the engine. 7. Push the choke back to the RUN position. 8. Warm up the engine without a load for a few FIG.20 FIG.20 minutes. Electric Start 1. Shift the fuel selector switch to GASOLINE FIG.21 position. FIG.16 (page 12) 2. Turn the battery switch to “ON”, the LED indicator will light. FIG.16 (page 12) 3. Pull the choke to the START position. Not necessary if the engine is already warm. 4. Turn the engine switch to the RUN position. FIG.21 5. FIG.
6. Pull the starter cord slowly until resistance is felt. Return the cord to its original position and pull rapidly. Do not completely pull out the rope. After starting, allow the starter cord to return to its original position slowly. Grasp the carrying handle firmly to prevent the generator from falling over when pulling the recoil starter. FIG.19 (page 12) 7. Push the choke back to the RUN position. 8. Warm up the engine without a load for a few minutes. Electric start 1.
The economy control switch must be turned to OFF when using electric devices that require a large FIG.24 starting current, such as a compressor or a submergible pump. FIG 24 2.OVERLOAD INDICATOR LIGHT FIG.25 The overload indicator light will blink when the rated load is exceeded. Reduce the loads to its normal range and the overload indicator light will turns off.
STOPPING THE ENGINE 1. Turn off and unplug all electric loads. Never start or FIG.27 stop the generator with electrical devices plugged in or turned on. FIG.27 2. Running with GASOLINE:Press the engine switch to OFF, turn the battery switch to OFF FIG.28 3. Running with LPG: Turn off the LPG tank valve. Press the engine switch to OFF, turn the battery switch to OFF, disconnect the quick connect from the generator, shift the fuel selector switch to GASOLINE. FIG.28 4.
PERIODIC MAINTENANCE Item Remarks Spark Adjust gap and clean. Replace if Plug necessary. Engine Oil Check oil level Daily Clean. Replace if necessary. Fuel Filter Clean fuel cock filter. Replace if Check choke operation. Valve Check and adjust when engine Clearance is cold. Fuel Line Check fuel hose for cracks or damage. Replace if necessary. Exhaust Check for leakage.
ENGINE OIL REPLACEMENT 1. FIG.30 Place the generator on a level surface and warm up the engine for several minutes, then stop the engine 2. Remove the oil filler cap. 3. Place an oil pan under the engine. Tilt the generator to drain the oil completely. FIG.30 4. Replace the generator on a level surface. 5. Add engine oil to the upper level. FIG.31 6. Install the oil filler cap. 7. Install the cover and tighten the screw FIG.
CAUTION The engine should never run without the element; FIG.33 excessive piston and/or cylinder wear may result. CLEANING AND ADJUSTING SPARK PLUG 1. Remove the cover. 2. Check for carbon build-up and remove the carbon. FIG.33 3. Check the spark plug type and gap. 4. Install the spark plug. 5. Install the cover. CAUTION FIG.34 Standard electrode color: Tan Color. Standard Spark Plug: F7RTC (TORCH) Spark Plug Gap: 0.6-0.7 mm (0.024-0.028 in) FUEL TANK FILTER 1.
1. Use a flathead screwdriver to pry the spark arrester out from the muffler. 2. FIG.35 Remove the carbon deposits on the muffler screen and spark arrester using a wire brush. FIG.35 3. Install the muffler screen. TROUBLESHOOTING ENGINE WON’T START 1. Fuel system No fuel supplied to combustion chamber. No fuel in tank….supply fuel Fuel in tank…. fuel cock knob to ON Clogged fuel line….clean fuel line Clogged carburetor….clean carburetor 2.
STORAGE Long term storage of your generator will require some preventive maintenance to guard against deterioration. DRAIN THE FUEL 1. Remove the fuel tank cap, drain the fuel from the fuel tank 2. Remove the cover, drain fuel from the carburetor by loosening the drain screw. ENGINE 1. Remove the spark plug, pour in about one tablespoon of SAE 10W30 or 20W40 motor oil into the spark plug hole and reinstall the spark plug. 2.
SPECIFICATIONS MODEL GEN3850W120VD - EPA Type Inverter Generator – Pure Sine GENERATOR AC Voltage 120V / 60Hz Starting wattage (gasoline) 3850W Running wattage (gasoline) 3500W Starting wattage (LPG) 3500W Running wattage (LPG) 3300W Power Factor 1.0 DC Output Model XY170F-1A Type Air-cooled, 4 cycle, OHV, Gasoline Engine Bore×Stroke ENGINE 12V / 8.0A 5V / 1A & 2.1A USB mm×mm 70×58 Displacement 223 cc Max. Output 4.
WIRING DIAGRAM GENERATOR BLOCK DC WINDING CONTROL PANEL BLOCK DC PROTECTOR 10A Bu Bu Bu DC 12V OUTPUT FUSE 15A BL R RECTIFIER Bu Bu DC5V OUTPUT GROUND TERMINAL AC 20A BL BL MAIN WINDING R BL INVERTER UNIT BL W SUB WINDING W BU R OUTPUT RESET R PI ECO. SWITCH BL BR GR R BL O R DIGITAL DISPLAY METER PI Bu Y O IGNITION WINDING M IGNITION CONTROLLER STEPPER MOTOR ASSY.