Indicates a strong possibility of severe personal injury or death if instructions are not followed. Indicates a possibility of personal injury or equipment damage if instructions are not followed. Gives helpful information. Please read and review the PH3300 Owner’s Manual before using this Service Manual. PH3300i SM, Rev. 2017-01-20...
Fuel used Automotive unleaded gasoline Alternator Alternator type Multi pole rotation type Alternator structure Self-ventilation drip-proof type Excitation Self-excitation (Magnet type) Phase Single phase Rotating direction Clockwise (Viewed from the generator) Frequency regulation AC-DC-AC conversion (Inverter type) PH3300i SM, Rev. 2017-01-20...
DC circuit protector Fuel tank capacity 16.3L (4.3 gal) Continuous running time 10.9 hours / 16.6 hours (at rated load ½ at ¼ load) Noise level (Zero load to full load) 63-78 dB @ 7m (23’) PH3300i SM, Rev. 2017-01-20...
To reduce the possibility of a fire or explosion, be cautious when working around gasoline. Use only a nonflammable solvent and not gasoline to clean parts. Keep all cigarettes, sparks and flames away from fuel and all fuel-related parts. PH3300i SM, Rev. 2017-01-20...
2.3 Servicing Rules 1. Use genuine POWERHOUSE® or POWERHOUSE® recommended parts and lubricants or their equivalents. Parts that do not meet POWERHOUSE® design specifications may damage the engine. 2. Always install new gaskets, O-rings, etc. when reassembling. 3. When tightening bolts or nuts, begin with larger-diameter or inner bolts first and tighten to the specified torque diagonally, unless a particular sequence is specified.
M16x1.5 66-74 90-100 M5 Bolt, nut M6 Bolt, nut 8-10 Standard torque M8 Bolt, nut 15-17 18-22 M10 Bolt, nut 41-44 55-60 ■ Use standard torque values for fasteners that are not listed in this table. PH3300i SM, Rev. 2017-01-20...
(1) Log Hours of operation to determine proper maintenance (2) Service more frequently when used in dusty areas. (3) These items should be serviced by an authorized dealer unless the owner has the proper tools and is mechanically proficient. PH3300i SM, Rev. 2017-01-20...
OEM replacement battery or the exact equivalent (this battery is typically listed as 3.7V and 3400mAh by most retailers). Fig. 2 Fig. 3 Put the positive end of both of the Li-ion batteries towards the top of the tray. Li-ion Battery Connector PH3300i SM, Rev. 2017-01-20...
3. If the oil level is low, add oil until it reaches the edge of the upper line on the dipstick (when screwed in as shown in Fig. 4). 4. Re-install the dipstick and the engine oil access door before restarting your generator. Fig. 4 Upper Limit Lower Limit Upper level Lower level PH3300i SM, Rev. 2017-01-20...
Lower Limit Lower level ■ Please dispose of used motor oil in a manner that is compatible with the environment and local disposal regulations. Do not throw oil in the trash or pour oil on the ground. PH3300i SM, Rev. 2017-01-20...
Maintenance Schedule (section 3.1). ■ Never run the engine if there is no filter element or if the filter is damaged, as it will cause serious damage to the engine. PH3300i SM, Rev. 2017-01-20...
5. Install the plug finger tight to seat the washer and then tighten with a plug wrench. Torque the spark plug to 11-13Nm (8-10ft-lbs) or ⅛ of a turn after seating with a previously compressed washer, or ¼ turn after seating with a new uncompressed washer. Torque valve is 8.0-10 ft.-lbs. (11-13 Nm) PH3300i SM, Rev. 2017-01-20...
Secure the rocker arm nut and tighten the jam nut. Recheck the clearance. 5. Clean the cylinder block and valve cover. 6. Replace the rubber valve cover seal. 7. Install the removed parts in the reverse order of removal. Fig. 9 PH3300i SM, Rev. 2017-01-20...
This grade of hose is commonly available at auto part stores as “fuel hose”, if the OEM replacement hose is unavailable. Fig. 10 Vent Hose from Air Filter Fuel Tank Vent Hose from Tank Air Filter case 380cc Carbon Canister PH3300i SM, Rev. 2017-01-20...
3.9 Replacing Fuel Filter ■ Use only the OEM Powerhouse replacement fuel filter when servicing this generator. ■ Take care not to introduce any debris or contaminants in the fuel system during this process. Contaminants introduced here will likely end up in the carburetor.
5. Replace the spark arrestor if the wire mesh is perforated or torn. 6. Reinstall the spark arrester. 7. Reinstall the clamp holding the spark arrester to the muffler. 8. Reinstall the exhaust grill. Fig. 13 Spark Arrestor Clamp Exhaust Grill PH3300i SM, Rev. 2017-01-20...
4.10 Measuring Stator Main Output Voltage While Running 4.11 No DC Output at Battery Charge Receptacle 4.12 Starting Battery Will Not Charge 4.13 Voltage Regulator Testing 4.14 Engine Runs-on or Backfires After Being Turned Off 4.15 Engine Will Start Then Shuts Down PH3300i SM, Rev. 2017-01-20...
Check the starter relay (section 5.6). Replace the starter relay (section 5.6). Normal Inspect the starter motor wire and Abnormal If starter fails to operate properly replace connection. Test the starter motor the starter motor (section 5.5). (section 5.5). PH3300i SM, Rev. 2017-01-20...
5.13.3). Lap valves, or replace & regrind as Install the spark plug securely. Engine necessary. should now start and run. 5. Check for worn piston, piston ring or cylinder (section 5.14.4). Re-ring or overhaul as necessary. PH3300i SM, Rev. 2017-01-20...
6. If the voltage of the red wire matches the Li-ion ( battery voltage), and the throttle still fails to go through the pre-start throttle location process, replace the inverter. PH3300i SM, Rev. 2017-01-20...
4. Install a compression gauge in the spark plug hole (Fig. 16). 5. Turn the ignition switch to the START position and hold until the compression gauge no longer rises. Read compression. Cylinder compression 0.45Mpa (65 psi) /800rpm Fig. 16 Pressure Gauge PH3300i SM, Rev. 2017-01-20...
Replace inverter (section 5.10.1). (section 5.10.3). Normal, Still no spark Check the harness wires to the ignition Abnormal Repair or replace wire harness as coil, trigger and ignition switch for breaks, necessary. shorts or bad connections. PH3300i SM, Rev. 2017-01-20...
6. Crank the engine over using the ignition key and watch the spark plug gap for signs of spark. A healthy ignition system will produce a spark as shown in (Fig. 18). 7. If there is no spark, or a weak spark; continue following the ignition troubleshooting flowchart. Ground Wire Fig. 17 Fig. 18 PH3300i SM, Rev. 2017-01-20...
10. If the trigger coil resistance is outside the specified range, or there is any continuity found in step 9, replace the ignition coil/trigger assembly. Black Ignition Wire Ignition Coil Ground Wire Red Ignition Wire Trigger Coil 6-Pin Connector Fig. 20 Green/white Trigger Wire Blue/white Trigger Wire Fig. 19 Spark Plug Cap PH3300i SM, Rev. 2017-01-20...
3-5, but failed one or more of steps 6-8 then look for a wiring problem in the ignition switch circuits. Wire Voltage at Different Switch Positions Ignition Switch Position Wire Color START Black (Gnd) (Gnd) (Gnd) (Batt+) (Batt+) (Batt+) Orange (Batt+) (Batt+) Blue (Batt+) Pink (Gnd) PH3300i SM, Rev. 2017-01-20...
Continuity If the voltage from the voltage regulator is reaching the ignition/indicator module, and the engine is not being shut down and/or the low oil light is not being illuminated, then replace the ignition/indicator module. PH3300i SM, Rev. 2017-01-20...
White Connector Fig. 22 Fig. 23 to the Low Oil Sensor Low Oil Sensor Lead Behind White Connector In-line Fuse to the Regulator Fig. 24 Check Continuity between the White Oil Sensor Wire and Ground PH3300i SM, Rev. 2017-01-20...
& combustion chamber. Clean as necessary. 4. Check the valve cone and seat (section 5.13.3). Lap valves, or replace & regrind as necessary. 5. Check for worn piston, piston ring or cylinder (section 5.14.4). Re-ring or overhaul as necessary. PH3300i SM, Rev. 2017-01-20...
9. If after 10 seconds of cranking there is no fuel present replace the fuel pump. Fuel Pump Fuel Pump Inlet Fig. 25 Fig. 26 To Vacuum Port Fuel Pump Outlet PH3300i SM, Rev. 2017-01-20...
Check the carburetor gasket and carburetor gasket as required. vacuum lines for leakage. (section 5.1.1). Normal Abnormal Check the throttle control step motor Replace the throttle control step (section 5.1.2.2). motor (section 5.1.2.1). Normal Replace the inverter. (section 5.10.1). PH3300i SM, Rev. 2017-01-20...
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Measure the stator output voltage while Inspect and repair stator wire harness or Abnormal running (section 4.10), and the stator replace stator (section 5.9.2). Check winding resistance (section 5.9.1). cylinder for foreign objects. Normal Replace inverter (section 5.10). PH3300i SM, Rev. 2017-01-20...
If all these tests are OK but there is still no or low voltage, the inverter will need to be replaced (section 5.10.2). To 6-Pin Stator Fig. 27 To 120VAC Connector Output Fig. 28 6-Pin Stator Connector White Sub Windings 3 & 6 Black Phase Wires 1, 2 & 4 PH3300i SM, Rev. 2017-01-20...
Abnormal shorts, repair as necessary. If no wiring voltage regulator. Measure the voltage issues found, replace the stator (section between the blue wires (section 4.4.3, 5.8). Fig. 21). Voltage: 16-20VAC Normal Replace the voltage regulator. PH3300i SM, Rev. 2017-01-20...
9-pin Connector To Wiring Fig. 30 Fig. 29 Harness Voltage Windings from To the To Low Oil Voltage Sensor Regulator To Stator PH3300i SM, Rev. 2017-01-20...
No low oil light due to oil splash. Add oil if necessary. If engine overspeeds briefly and then Overspeeds shuts down and has no AC output; Replace the inverter (section 5.10). then it is overspeeding due to inverter failure. PH3300i SM, Rev. 2017-01-20...
12. Disconnect the step motor connector. 13. Remove the carburetor as an assembly by sliding it off its studs. 14. Reinstall the carburetor using these steps in reverse order. Fig. 33 Air Filter Cartridge Carburetor Air Cleaner Cover Air Cleaner PH3300i SM, Rev. 2017-01-20...
(indicated by an arrow in (Fig. 35) when reinstalling the motor. 5. Reinstall the carburetor using the steps in (section 5.1.1) in reverse order. Step Motor Step Motor Bracket Choke Cable Mount Fig. 34 Choke Cable Mount Standoffs Fork Fig. 35 Fork Spring PH3300i SM, Rev. 2017-01-20...
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1. Measure the resistance of the outlet terminals of the step motor (Fig. 36). Pin 1-blue - Pin 2-white:145-155Ω Resistance value Pin 3-red - Pin 4-black:145-155Ω 2. Replace the step motor if the resistance does not fall within the recommended range. Fig. 36 PH3300i SM, Rev. 2017-01-20...
3. Replace the BFP if the resistance does not fall within the specified range, or it fails the bench test. Make sure the end of the needle is clean before installing. Resistance value 7-9Ω Access BFP connector Measure resistance behind control panel. between these pins. Fig. 37 Fig. 38 Fig. 39 Extended Retracted PH3300i SM, Rev. 2017-01-20...
FULL choke position. If the choke moves off while cranking, adjust a very small amount of slack from the cable and retest. Choke Cable Adjustment Choke in OFF position Ferrule Choke in FULL position Fig. 41 Fig. 42 Choke Cable Hold-down PH3300i SM, Rev. 2017-01-20 Screw...
6000 feet. It is unnecessary to change to a high altitude jet for altitudes ≤ 6000 feet. Fig. 43 Rubber Bowl Seal Emulsifier Tube Fuel Bowl Main Jet O-Rings BFP Solenoid Fuel Bowl Retainer PH3300i SM, Rev. 2017-01-20...
START position and verify that the starter performs as well as it did in step 4. If not, check the cable from the starter relay for breaks, shorts or bad connections (section 5.6). Cable from Starter Relay Fig. 49 Starter Motor PH3300i SM, Rev. 2017-01-20...
If power is being supplied by the relay to the starter but the starter fails to operate properly see (section 5.5) for starter service. Cable from Battery Fig. 55 Starter Relay Terminal Starter Fig. 56 motor Terminal Start Wire Starter from Motor Ignition Switch Chassis Ground PH3300i SM, Rev. 2017-01-20...
■ There must only be continuity between the battery and starter terminals when the relay is activated. Checking Resistance Fig. 57 Checking Continuity Fig. 58 Connect to 12V positive battery terminal Connect to negative battery terminal PH3300i SM, Rev. 2017-01-20...
Remove 4 nuts from the engine mounting bolts (2 on each side) and lift the engine assembly off the base pan (Fig. 60 & 61). Remove the carburetor and the intake fan cover, revealing the engine (Fig. 62). Upper Frame and Gas Tank Fig. 59 Fig. 60 Fig. 61 Mounting Bolts PH3300i SM, Rev. 2017-01-20...
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Fig. 62 Intake Fan Cover Bolts Intake Fan Cover Bolt Intake Fan Cover Bolt PH3300i SM, Rev. 2017-01-20...
Recheck the gap, re-adjust if necessary. 4. Rotate the rotor to make sure there is no interference with any other components. 5. Reverse the procedure to reassemble. 1.0-1.2mm (0.040”-0.060”) Trigger clearance Fig. 63 Feeler Rotor Gauge Trigger Ignition Coil TDC Block PH3300i SM, Rev. 2017-01-20...
Measure the resistance between each of the main winding terminals at the 6-pin connector (Fig. 64). Black-Black-Black Resistance 0.25-0.35 Ω Fig. 64 6-Pin Connector from Stator to 6-Pin harness on Inverter 2-Pin Connector from Stator to Voltage Regulator PH3300i SM, Rev. 2017-01-20...
Set the inverter and control panel on a flat, nonconductive surface as shown so there is no stress on the wires or connections. Fig. 68 Inverter, Ready for Adjustment Control Panel PH3300i SM, Rev. 2017-01-20...
7. Seal the screws on both adjustment pots using a drop of touch up paint or silicone sealant. 8. Reassemble the generator using steps 1-7 in (section 5.1.1) in reverse order. Voltage Adjustment Pot Fig. 69 Fig. 70 Overload Adjustment Pot Fig. 71 PH3300i SM, Rev. 2017-01-20...
(Fig. 73). Verify that the voltage is 12.5-14.0V. If there is no or low voltage replace the inverter. Check Black Ground Wire Fig. 72 from this 8-pin Receptacle Fig. 73 Red Wire from Voltage Regulator/Li-ion Batteries Red/White Wire Ignition/Indicator Module PH3300i SM, Rev. 2017-01-20...
10. Remove the muffler. This gains access to secondary air valve and exhaust fan (Fig. 77). Upper Frame and Gas Tank Muffler Cover Bolts Fig. 75 Fig. 74 Gasket Long M8x80 Exhaust Fan Spacer M8x90 Secondary Short Air Valve M8x170 M8x150 Spacer Fig. 76 Fig. 77 PH3300i SM, Rev. 2017-01-20...
5.13.2 Cylinder Head Disassembly and Reassembly Fig. 83 Cylinder Head Push Rods Valve Spring Rocker Arm Retainers Rocker Studs Arms Intake Valve Jam Nuts Rocker Arm Adjustment Nuts Guide Plate Lash Pad Exhaust Valve Valve Springs PH3300i SM, Rev. 2017-01-20...
5.14 Crankshaft / Camshaft / Piston 5.14.1 Disassembly and Reassembly Piston and Rod Front Engine Seal Front Crankshaft Lifters Bearing Low Oil Sensor Crankshaft Rod Bolts Lower Rod Cap PH3300i SM, Rev. 2017-01-20...
5.14.2 Alignment of Timing Marks ■ Use marks to align camshaft gear and timing gear during installation. Timing Marks Fig. 84 Cam Gear Crankshaft Gear PH3300i SM, Rev. 2017-01-20...
Make sure the 1st ring and 2nd ring are not interchanged. ■ Make sure the piston rings are free to move after installation. ■ Stagger each piston ring gap 120° from each of the other rings. PH3300i SM, Rev. 2017-01-20...
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● Cylinder Inner Diameter Standard Service limit 77.00-77.02mm (3.031”-3.032”) 77.10mm (3.036”) ● Piston Skirt Outer Diameter Standard Service limit 76.85mm (3.026”) 76.96-76.98mm (3.030”-3.031”) 10mm ● Side Clearance Of Piston Ring Standard Service limit 0.02-0.06mm (0.001”-0.002”) 0.15mm (0.006”) PH3300i SM, Rev. 2017-01-20...
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0.15-0.25mm (0.006”-0.010”). 1.0mm (0.04”) ● Piston Ring Height Standard Service limit 1.97-1.99mm (0.077”-0.078”) The 1 ring 1.87mm (0.074”) 1.97-1.99mm (0.077”-0.078”) The 2 ring 1.87mm (0.074”) ● Piston Pin Outer Diameter Standard Service limit 17.99-18.00mm (0.708”-0.709”) 17.95mm (0.707”) PH3300i SM, Rev. 2017-01-20...
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● Piston Pin Hole Inner Diameter Standard Service limit 18.00-18.01mm (0.708”-0.709”) 18.05mm (0.711”) ● Connection Rod Small End Inner Diameter Standard Service limit 18.01-18.02mm (0.709”-0.709”) 18.08mm (0.712”) ● Connection Rod Big End Inner Diameter Standard Service limit 33.1mm (1.30”) 33.02-33.03mm (1.300”-1.300”) PH3300i SM, Rev. 2017-01-20...
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● Crankshaft Neck Outer Diameter Standard Service limit 32.9mm (1.29”) 32.97-32.98mm (1.298”-1.298”) ● Connection Rod Big End Side Clearance Standard Service limit 0.1-0.4mm (0.004”-0.016”) 0.8mm (0.03”) PH3300i SM, Rev. 2017-01-20...
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