Part of the Yanmar Operator Manuals.
A Yanmar L48N that cranks sweetly and never fires will eat a whole morning before you even open the fuel system, and the answer is usually somewhere in these 104 pages: air in the lines, a lever left in the wrong position, or a filter that was due at 200 hours. This is Yanmar's own operation manual (publication 0ALN0-G00100) for the L48N, L70N and L100N air cooled industrial diesels, in English, as a searchable, bookmarked PDF.
It walks through daily checks, fuel and oil specifications, recoil and electric starting, engine speed adjustment, the full periodic maintenance schedule, troubleshooting charts, and long term storage. Oil capacities, fuel tank capacities, and general specifications for all three engines sit in the back.
Whether your L-N series engine drives a pump, a generator, or sits on a stand, this is the book that gets the intervals and the part numbers right the first time, down to the outlet fuel filter.
Complete the set for your L48N, L70N, L100N
- Repair Manual: Yanmar L48N, L70N, L100N Service Manual (incl. Wiring)
Other edition of this manual
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 3-4 | Record of Ownership, Table of Contents |
| Yanmar Warranties | 9-12 | Yanmar Limited Warranty (What Is Covered by This Warranty?, How Long Is the Warranty Period?, What the Engine 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 | 13-24 | Safety Statements, Safety Precautions (Before You Operate, During Operation and Maintenance) |
| Product Overview | 25-32 | Yanmar L-N Series Engine Features and Applications, Component Identification, Location of Labels, Major Engine Components, Air Cooled Engine |
| Before You Operate | 33-42 | Diesel Fuel (Specifications, Filling the Fuel Tank), Engine Oil (Specifications, Viscosity, Checking Engine Oil, Adding Engine Oil, Capacity) |
| Engine Operation | 43-58 | Starting the Engine (Recoil Start, Electric Start), Check the Engine During Operation, Adjust Engine Speed |
| Periodic Maintenance | 59-90 | Precautions (Importance of Periodic Maintenance, Performing Periodic Maintenance, Importance of Daily Checks, Keep a Log of Engine Hours and Daily Checks, Yanmar Replacement Parts, Tools Required, Ask Your Authorized Yanmar Industrial Engine Dealer or Distributor for Help, Tightening Fasteners) |
| Troubleshooting | 91-94 | Troubleshooting Chart, Troubleshooting Information |
| Long Term Storage | 95-98 | Before You Place the Engine in Long Term Storage, Returning the Engine to Service |
| Specifications | 99-103 | General (Model Number, Engine Speed Specifications, Engine General Specifications), Principal Engine Specifications, Engine Specifications |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| L48N, L70N, L100N | ||
| Outlet Fuel Filter Part No. | 114250-55121 | p. 86 |
| All Models | ||
| Outlet Fuel Filter Replacement Interval | Every 200 hours | p. 72 |
| Fuel Injection Nozzle Inspection/Cleaning/Test Interval | Every 1500 hours | p. 72 |
| Intake / Exhaust Valve Clearance Adjustment Interval | Every 400 hours | p. 72 |
| Ambient Temperature Limit (Overheating Risk) | Above +40°C | p. 22 |
| Engine Oil Change Interval | 200 hours | p. 72 |
| L48N | ||
| Engine Oil Capacity (Dipstick Upper Limit), L48N | 0.80 L | p. 41 |
| Fuel Tank Capacity (Recommended), L48N | 1.9 L | p. 101 |
| L70N | ||
| Engine Oil Capacity (Dipstick Upper Limit), L70N | 1.05 L | p. 41 |
| Fuel Tank Capacity (Recommended), L70N | 2.7 L | p. 101 |
| L100N | ||
| Engine Oil Capacity (Dipstick Upper Limit), L100N | 1.6 L | p. 41 |
| Fuel Tank Capacity (Recommended), L100N | 4.7 L | p. 101 |
