Robin-Subaru EH72D - Manuals

CONTENTS SAFETY PRECAUTIONS ........................................................................................................................... 1 COMPONENTS ..........................................................................................................................................

6 SYMBOLS Explosion Fire Explosive Pressure Read the owner’s manual Stay clear of the hot surface Exhaust gas is poisonous. Do not operate in an unventilated area. Stop the engine before refueling Fire, open fl ame and smoking prohibited On (Run) Off (Stop) Engine oil Add oil Plus ;positive polarity...

7 The safety alert symbol ( ) is used with a signal word ( DANGER, CAUTION, WARNING ), a pictorial and/or a safety message to alert you to hazards. DANGER indicates a hazard which, if not avoided, will result in death or serious injury. WARNING in- dicates a hazard which, if not avoided, could resul...

8 SAFETY PRECAUTIONS Please make sure you review each precaution carefully. EXHAUST PRECAUTIONS • Never inhale gas. It contains carbon monoxide, a colorless, orderless and extremely dangerous gas which can cause unconsciousness or death. • Never operate the engine indoors or in a poorly ventilated a...

9 PROTECTIVE COVER • Place the protective covers over the rotating parts. If rotating parts such as the drive shaft, pulley, belt, etc. are left exposed, they are potentially hazardous. To prevent injury, equip them with protective covers or shrouds.• Be careful of hot parts. The muffl er and other ...

10 • Disconnect the LP/NG fuel line before transporting the engine.• Do not move the engine while in operation when it has been removed from the equipment. • Keep the unit dry (do not operate it in rainy conditions). PRE-OPERATION CHECKS • Carefully check fuel hoses and connec-tions for looseness an...

11 COMPONENTS Hook Air cleaner cover Blower housing Regulator Oil Cooler Mixer Governor lever Oil fi ller cap Spark plug cap Oil fi lter PTO shaft Oil drain plug(on both sides) Electric starter Oil gauge Voltage regulator REMARKS: • Fuel tank, valve, (sediment bowl type is recommended), fuel hoses, ...

12 PRE-OPERATION CHECKS 5W 10W 20W #20 #30 #40 10W-30 10W-40 Singlegrade Multigrade Ambienttemperature -20 -10 0 10 20 30 40 -4 14 32 50 68 86 104 Upper level Lower level Oil gauge Oilgauge Upperlevel Lowerlevel Oilgauge Upperlevel Lowerlevel ENGINE OIL (CHECK DAILY) Before checking or refi lling en...

13 GASEOUS FUEL WARNING ▲ ! Do not refuel while smoking, near an open fl ame or other potential hazards. Fuel Recommendations LPG Propane content of 95% of higher NATURAL GAS Methane content of 90% or equivalent INSTRUCTIONS FOR CONVERTING TO NATURAL GAS OPERATION The engine is optimized for LP oper...

14 VAPOR WITHDRAWL With a vapor withdrawal system, the LP fuel is vaporized in the fuel tank by heat input from the ambient temperature. The pressure is reduced to about 11” water column (0.4psi) on the outlet side of the primary regulator. The vaporized fuel is then brought to the engine and demand...

15 BATTERY INSTALLATION For electric starter operation, proper electric wiring arrangements are needed before normal engine operation. PARTS NEEDED • Use a battery rated 12V-36AH or larger.• Use a proper cable and ground wire to connect battery and key switch and electric starter. LA406 LA408 CABLE ...

16 WIRING • Connect positive terminal of electric starter and positive terminal of the battery with battery cable. • Ground negative terminal of the battery to the body of engine or machine with ground wire. NOTE Tighten bolts and nuts on terminals securely so they will not be loosened by vibration....

17 OPERATING YOUR ENGINE STARTING STOPPING FUEL VALVE (Provided by the equipment manu-facturer) Open the fuel valve. ELECTRIC STARTER Turn the key switch to the “STOP” position. FUEL VALVE Close the fuel valve. ELECTRIC STARTER (Provided by the equipment manu-facturer)Turn the key swtich to the “STA...

18 EASY TROUBLESHOOTING Perform the following checks before you take the engine to your Subaru dealer. If you still have trouble after completing the checks, take the engine to your nearest Subaru dealer. • Engine will not start • Engine lacks power Is ther enough compression? If the spark plug is l...

19 Is there a strong spark across the electrode? 1. Remove the spark plug and connect it to the plug cap. Turn key switch to START position while grounding the spark plug against engine body. 2. Try with a new spark plug if the spark is weak or there is no spark. 3. The ignition system is faulty if ...

20 EASY TROUBLESHOOTING DAILY INSPECTION Before funning the engine, check the following service items. PERIODIC MAINTENANCE Periodic maintance is vital to safe and effi cient operation of your engine. Check the table below for periodic maintenance intervals. Enough Fuel Excessive vibration, noise Cl...

23 ENGINE OIL FILTER • Initial engine oil fi lter replacement should be performed after 20 hours of operation. Thereafter replace the engine oil fi lter every 200 hours. • When installing a new oil fi lter, apply oil to O-ring, attach the oil fi lter in position and tighten 2/3 turns by hand or with...

24 • Paper element Clean by taping gently to remove dirt and blow off dust. Never use oil. Clean or replace paper element every 50 hours of operation, and replace element set every 200 hours or once a year. Clean and replace air cleaner elements more often when operation in dusty environments . BOLT...

25 PREPARATIONS FOR STORAGE ENGINE OIL • Change the engine oil with fresh oil.• Remove the spark plug, pour about 5cc of engine oil into the cylinder, slowly start the engine for 2 or 3 seconds, and re-install the spark plug. CLEAN AND STORE • Remove the spark plug wires from the spark plugs.• Slowl...

26 SPECIFICATIONS MODEL EH72 LP/NG Type Air-Cooled, 4-stroke, V-Twin Cylinder, Horizontal P.T.O. shaft, OHV, LPG/NATURAL GAS Fueled Engine Bore x Stroke mm(in) 2-84 x 65 (3.31 x 2.56) Displacement cm³(cu.in) 720 (43.9) Maximum Torque N•m 39.5 N•m @ 2500rpm Maximum Output LPG (Propane content of 95% ...