TABLE OF
CONTENTS
Page
Introduction......................................................................1
Record of Ownership......................................................2
Safety...............................................................................3
Safety Precautions.........................................................4
General Information ................................................. 4
Before You Operate ................................................. 4
During Operation and Maintenance ............................. 4
Safety Decals................................................................8
Product Overview..............................................................9
Yanmar BY-Series Features and Applications......................9
New Engine Break In.............................................. 10
Component Identification...............................................11
Left Side (as viewed from flywheel) - 4BY2.................. 11
Right Side (as viewed from flywheel) - 4BY2................ 11
Top View - 4BY2 ................................................... 12
Left Side - 6BY2 .................................................... 12
Right Side - 6BY2 .................................................. 13
Top View - 6BY2 ................................................... 13
Location of Nameplates.................................................14
Function of Major Components........................................16
Fuses and Relays.........................................................18
Engine Cover..............................................................19
Before You Operate..........................................................21
Diesel Fuel..................................................................22
Diesel Fuel Specifications ....................................... 22
Filling the Fuel Tank ............................................... 24
Bleeding the Fuel System........................................ 24
Engine Oil...................................................................25
Engine Oil Specifications......................................... 25
Acceptable Engine Oil ............................................ 26
Checking Engine Oil............................................... 29
BY Series Operation Manual
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