R PORTABLE DIESEL GENERATOR E F OWNER’S OPERATION AND INSTALLATION MANUAL 12 0 VO LT S RE SE TE T ST 12 0 ON LY FU LL SE PO WER LE CT OR EN 00 M 00 00 HO 05 UR S 1/1 0 12 0/2 40 V RU 12 0/24 0 VO LT S N OP ST RE SE T RE SE T Generator Model: MGY5000C IMPORTANT: Read and understand this manual before operating or servicing generator. Improper use of generator can cause serious injury. Keep this manual for future reference.
R PORTABLE DIESEL GENERATOR SAFETY INFORMATION 1. WARNINGS IMPORTANT: Read this owner’s manual and the engine owner’s manual carefully. Become familiar with this generator before trying to operate or service it. Know its uses, limitations, and any hazards involved. Improper use of generator can cause severe injury or death from explosion, fire, burns, electrical shock, or carbon monoxide poisoning. DANGER: Carbon monoxide poisoning may lead to death! Engine exhaust contains poisonous carbon monoxide gas.
OWNER’S MANUAL SAFETY INFORMATION PRODUCT IDENTIFICATION Continued 10. 11. 12.
R PORTABLE DIESEL GENERATOR GENERAL INFORMATION This portable generator is rugged and compact. It provides dependable, trouble-free service. The alternator is brushless with revolving fields. Yanmar diesel engine provides long life under heavy use. This engine is governed to maintain engine speed of 3600 RPM under load. 3600 RPM engine speed provides 120/240V, 60 Hz power.
OWNER’S MANUAL GENERATOR FEATURES Continued FULL POWER SELECTOR SWITCH The full power selector switch is on the control panel. The switch has two positions: 120 VOLT ONLY, and 120/240 VOLT. 120 VOLT ONLY: This position sends full power to the 120V receptacles only. 240V power is not available. Use this position when powering 120V items only. 120/240 VOLT: This position sends full power to the 120/240V receptacle. It also powers the 120V receptacles at reduced wattage capacity.
R PORTABLE DIESEL GENERATOR ENGINE OIL We ship the generator without oil in the engine crankcase. You must add oil before starting engine. See engine owner’s manual for specific oil type. CHECKING OIL LEVEL AND ADDING OIL Follow steps below to check oil level. Make sure engine is level and stopped. 1. Remove dipstick (see Figure 7). Wipe dipstick clean. 2. Insert dipstick into oil filler neck. Do not screw it in. Oil level should be at top of filler neck. Oil should cover most of dipstick. 3.
OWNER’S MANUAL BATTERY MOUNTING BATTERY TO GENERATOR Continued 1. INSTALLING BATTERY CABLES TO ENGINE 1. 2. Attach the red, positive (+) battery cable to the starter solenoid on engine (see Figure 8). Attach the black, negative (–) battery cable to the engine block. Use the bolt, nut, and two washers provided with the battery cables. Attach cable as shown in Figure 9. 2. 3. 4. Starter Solenoid Secure battery to generator by battery hold-down system.
R PORTABLE DIESEL GENERATOR EXTENSION CORDS Only use grounded extension cords. Be sure to use extension cord with proper wire gauge size. See chart below.
OWNER’S MANUAL DETERMINING ELECTRICAL LOAD FOR GENERATOR OPERATION GENERAL INFORMATION This generator is not large enough to power your entire home. Do not connect generator to any existing electrical circuits. Plug items directly into generator receptacles. Do not exceed amperage rating of receptacles. Only use grounded cords. Continued Chart 1 - Typical Electric Appliance Wattages Chart to be used as reference. Data may vary wiht size, make, and/or model.
R PORTABLE DIESEL GENERATOR OPERATION PRESTART Continued Operate generator on a firm, dry, and clean surface. The surface must be level. Protect generator from heavy dust, sand, dirt, rain, or snow. Do not locate generator near standing water and snow. Make sure area is well-vented. 120V, 15-Amp GFCI Duplex 120V, 15-Amp Duplex 120/240V, 20-Amp Twist-Lock 12 0V OL T S WARNING: Only responsible adults should use generator. Never let anyone operate generator without proper instructions.
OWNER’S MANUAL OPERATION HIGH ALTITUDE OPERATION Continued This generator will not perform well at high altitudes without proper adjustment. Contact a Yanmar dealer for adjustment information. B. Recoil Starter I. Slowly pull starter rope until you feel strong resistance. Gently return starter rope to engine. II. Push decompression lever all the way down (see Figure 17). Decompression lever will stay in this position until you pull starter rope. III. Firmly grasp starter grip with both hands.
R PORTABLE DIESEL GENERATOR MAINTENANCE AND REPAIRS WARNING: Only a qualified electrical service person should service and repair the alternator on this generator. Use only factory approved replacement parts. CAUTION: You must always run the engine at full speed. Do not run engine at lower speeds. At full speed, the engine runs at 3600 RPM under load. The engine must maintain 3600 RPM for generator to create correct voltage. Running engine at lower speeds will damage generator and powered items.
OWNER’S MANUAL ELECTRICAL COMPONENT SPECIFICATIONS Resistance in Ohms Stator Stator Rotor Rotor Main Auxiliary Primary Secondary Winding * Winding ∆ Winding † Winding † Model MGY5000C 0.54 1.38 0.61 2.29 Capacitor, MFD 450 Volt Diodes (2) 800 Volt 50 70 Amp * Connect T2 (green) and T3 (black). Measure resistance between T1 (red) and T4 (yellow). ∆ Resistance between brown and white leads. † Remove diodes to check resistance.
R PORTABLE DIESEL GENERATOR TECHNICAL SERVICE You may have further questions about assembling, operating, or maintaining this product. If so, you can visit our Technical Service web site at www.desatech.com or contact our Technical Service Department at 1-800-858-8501 (English Only). You may also write to: DESA Power Tools™ P.O.
OWNER’S MANUAL ILLUSTRATED PARTS LIST 22 ALTERNATOR ASSEMBLY This list contains replaceable parts used in your generator. When ordering parts, follow the instructions listed under Replacement Parts on page 14- of this manual. 14 23 21 9 20 18 9 19 10 8 13 17 7 6 12 5 15 16 4 1 25 2 11 3 KEY NO.
R PORTABLE DIESEL GENERATOR ILLUSTRATED PARTS LIST 2 1 FUEL TANK AND ROLL CAGE 3 E F This list contains replaceable parts used in your generator. When ordering parts, follow the instructions listed under Replacement Parts on page 14 of this manual. 5 4 20 9 15 9 8 14 6 7 10 11 12 13 19 19 14 18 9 8 16 8 14 9 9 17 KEY NO.
OWNER’S MANUAL ILLUSTRATED PARTS LIST 11 CONTROL PANEL 2 This list contains replaceable parts used in your generator. When ordering parts, follow the instructions listed under Replacement Parts on page 14 of this manual. 2 1 3 RE SE TE T ST 5 12 0V 4 OL TS 7 15 6 12 0O FU NL LL Y SE PO LE WE CT 12 R 12 OR 0/2 40 V 12 0/2 40 VO 6 LT S RE RE SE T SE T 14 EN 00 M 00 00 05 UR S 13 HO 1/10 8 9 10 KEY NO.
R PORTABLE DIESEL GENERATOR ILLUSTRATED PARTS LIST 3 2 SWITCH CONTROL BOX 1 This list contains replaceable parts used in your generator. When ordering parts, follow the instructions listed under Replacement Parts on page 14 of this manual. 17 16 15 10 20 4 13 4 22 12 12 5 9 11 23 7 8 19 4 4 6 21 14 3 18 3 KEY NO.
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WARRANTY INFORMATION KEEP THIS WARRANTY Model Serial No. Date Purchased Always specify model and serial numbers when communicating with the factory. We reserve the right to amend these specifications at any time without notice. The only warranty applicable is our standard written warranty. We make no other warranty, expressed or implied. Note: The five-year limited warranty below covers all non-engine parts of this generator including the alternator. Honda warrants the engine.
