Running blind without factory specs guarantees unexpected downtime, which is why this 146-page Yanmar ydg2700ev-6eh, ydg3700ev-6ei, ydg5500ev-6ei operation manual pdf (OEM #0AYDG0-G0000) details everything required to maintain your 2005-2007 diesel powered generators. Inside, you get complete electrical wiring diagrams, step-by-step troubleshooting charts, and a dedicated periodic maintenance schedule to keep the engine firing reliably. Open the guide to find detailed fluid capacities, control panel breakdowns, and a full standard torque chart for every critical fastener. Clean the inlet fuel screen every 50 hours and always torque your M6x1.0 bolts to exactly 10.8 ± 1.0 N·m to prevent vibration loose-ups during heavy loads. Quit treating power failures like a guessing game. Download this bookmarked file right to your tablet, jump straight to the exact diagnostic procedure, and get the jobsite lights back on.
What's Inside This Yanmar YDG Series Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 3-4 | Record of Ownership |
| Yanmar Warranties | 5-12 | Yanmar Limited Warranty (What Is Covered by This Warranty?, How Long Is the Warranty Period?, What the Generator Owner Must Do, To Locate an Authorized Yanmar Industrial Engine Dealer or Distributor, What Yanmar Will Do, What Is Not Covered by This Warranty?, Warranty Limitations, Warranty Modifications, Questions, Retail Purchaser Registration) |
| Safety | 17-34 | - |
| Product Overview | 35-50 | Yanmar Ydg Diesel Generator Features and Applications, Component Identification |
| Before You Operate | 51-76 | Battery (Activating the Battery), Diesel Fuel (Specifications, Filling the Fuel Tank), Engine Oil (Specifications, Viscosity, Checking Engine Oil, Adding Engine Oil, Capacity) |
| Generator Operation | 77-96 | Starting Generator, Checking the Generator During Operation, Shutting Down the Generator, AC Application, DC Application |
| Periodic Maintenance | 97-132 | Precautions, Standard Torque Chart, Periodic Maintenance Schedule, Periodic Maintenance Procedures |
| Troublesh Ooting | 133-138 | Troubleshooting Chart, Troubleshooting Information, Electrical Wiring Diagram |
| Long Term Storage | 139-142 | Before You Place the Generator in Long Term Storage, Returning the Engine to Service |
| Specifications | 143-146 | Principal Specifications |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Tightening Torque M6×1.0 | 10.8 ± 1.0 N·m | p. 114 |
| Tightening Torque M8×1.25 | 25.5 ± 2.9 N·m | p. 114 |
| Battery electrolyte fill volume | 1.9 qt (1.8 L) | p. 59 |
| Battery electrolyte level | Between upper and lower level lines | p. 125 |
| Inlet fuel screen cleaning/replacement interval | Every 50 hours | p. 116 |
| Outlet fuel filter replacement interval | Every 200 hours | p. 116 |
| Air cleaner element cleaning/replacement interval | Every 200 hours | p. 116 |
| Air cleaner element cleaning air pressure | 42-71 psi (0.29−0.49 MPa, 3.0−5.0 kgf/cm2) | p. 128 |
| Frequency | 60 Hz | p. 143 |
| Rotor Shaft Speed | 3600 rpm (min-1) | p. 143 |
| Power Factor | 1 | p. 143 |
| DC Output | 12V - 8.3A (100W) | p. 143 |
Yanmar YDG Series Common Problems This Manual Covers
Yanmar YDG2700EV-6EH generator engine runs fine but produces absolutely no AC electrical output p. 135
Inspect the main switch and GFCI unit. Verify the rotor shaft speed reaches exactly 3600 rpm (min-1). Test the stator and rotor components for short circuits. If testing the DC circuit, confirm the output meets the standard 12V - 8.3A (100) specification listed on page 143.
Manual Section: No Electricity GeneratedStarter motor clicks or rotates too slowly when attempting cold starts after long storage periods p. 134
Check the battery cable connections at the terminals. Inspect the battery electrolyte level on page 125, ensuring it sits exactly between the upper and lower level lines. Fill to the maximum 1.9 qt (1.8 L) capacity if completely dry, and charge the battery fully before testing the starter switch.
Manual Section: Starter Motor Does Not Operate or Rotates Too SlowlyEngine bogs down under heavy load and constantly blows thick white or black exhaust smoke p. 134
Remove the air cleaner element and check for heavy clogging. Clean the element using compressed air regulated to 42-71 psi (0.29-0.49 MPa) as directed on page 128. Verify the engine is not overloaded and check the intake and exhaust valve clearances for proper specification.
Manual Section: White or Black Exhaust SmokeEngine speed hunts erratically during operation and frequently shuts down from low oil pressure warnings p. 97
Drain the old engine oil and torque the drain plug to 19.6-23.5 N·m as shown on page 124. Refill the crankcase to the proper upper limit on the dipstick to reset the warning system. Verify the no load maximum revolution stabilizes at 3750 ± 50 rpm.
Manual Section: Periodic MaintenanceFrequently Asked Questions
How do I reset the low oil pressure alarm on a Yanmar YDG3700EV-6EI?
If the oil pressure falls below the specified minimum, the low oil pressure shutdown will automatically stop the engine. To address this, check the engine oil level and refill it as needed, referring to "Adding Engine Oil on page 49" for the procedure.
How do I reset the overload warning on a Yanmar YDG5500EV-6EI?
The manual describes a Ground Fault Circuit Interrupter (GFCI) unit that can trip. To restore power after a GFCI trip, press the RESET button (Figure 9, (2)) on the GFCI unit firmly until an audible click is heard. If the GFCI continues to trip, reduce the electrical load or check the appliance for defects.
What does the alarm light mean on a Yanmar YDG2700EV-6EH?
The manual advises that if any indicator illuminates during engine operation, you should stop the engine immediately. It is important to determine the cause and repair the problem before continuing to operate the engine, as such indicators signal a potentially serious issue.
What are the torque specifications for fasteners on the Yanmar YDG series generator?
The standard torque chart provides specifications for various thread sizes. For M6x1.0, the tightening torque is 96.0 ± 9.0 in lbs or 10.8 ± 1.0 N·m. For M16x1.5, it is 167.0 ± 7.0 ft lbs or 226.0 ± 9.8 N·m. For bolts with a "7" head (JIS strength classification: 7T), apply 60% torque to bolts not listed and 80% torque when tightened to aluminum alloy.
What do I get after purchasing this Yanmar YDG2700EV-6EH, YDG3700EV-6EI?
This is a 146-page searchable PDF ready for immediate download. Works on any device, so pull it up on your phone while you're under the hood. No shipping, no waiting.
Can I print this manual?
No restrictions at all. Print individual pages, full chapters, or the entire manual. The PDF is completely unlocked.
Are there wiring harness diagrams in this Yanmar YDG2700EV-6EH, YDG3700EV-6EI?
Included. The Yanmar YDG2700EV-6EH, YDG3700EV-6EI, YDG5500EV-6EI Operation Manual provides a wiring diagram for the electrical system.
Document Quality
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