John Deere Powertech 8.1 L 6081 OEM Diesel Engines Operation And Service Manual

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Models Covered : 

This manual covers all
POWERTECH 8.1L OEM engines.
Those engines produced starting in
the year 1996 are noted as engines
( —199,999). Engines produced after
January 2001 which are redesigned
to meet the 2001 emission standards
are noted as engines (200,000— ).
These engines also have a suffix
“070” in the engine model number,
as in “6081HF070”.

Record Keeping Viewing Stored Service Codes (DTC) in
Record Engine Serial Number . . . . . . . . . . . . . . 01-1

Engine ECU . . . . . . . . . . . . . . . . . . . . . . . . . 15-18

Engine Option Codes . . . . . . . . . . . . . . . . . . . . . 01-2

Break-In Service. . . . . . . . . . . . . . . . . . . . . . . . 15-19
Record Fuel Injection Pump Model Number . . . . 01-4

Auxiliary Gear Drive Limitations . . . . . . . . . . . . 15-21
Record PTO Serial Number . . . . . . . . . . . . . . . . 01-4

Generator Set (Standby) Power Units. . . . . . . . 15-22
Starting the Engine. . . . . . . . . . . . . . . . . . . . . . 15-22
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 05-1

Restarting Engine That Has Run Out Of
Fuel - Engines (200,000- ) . . . . . . . . . . . . . . 15-26
Normal Engine Operation . . . . . . . . . . . . . . . . . 15-28

Fuels, Lubricants, and Coolant Cold Weather Operation. . . . . . . . . . . . . . . . . . 15-29

Diesel Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1

Warming Engine. . . . . . . . . . . . . . . . . . . . . . . . 15-30
Lubricity of Diesel Fuels . . . . . . . . . . . . . . . . . . . 10-1

Idling Engine . . . . . . . . . . . . . . . . . . . . . . . . . . 15-31
Diesel Fuel Storage . . . . . . . . . . . . . . . . . . . . . . 10-2

Changing Engine Speed-Standard
DIESELSCAN Fuel Analysis. . . . . . . . . . . . . . . . 10-2 (Mechanical) Governor . . . . . . . . . . . . . . . . . 15-31

Minimizing the Effect of Cold Weather on Changing Engine Speed (Later Engines
Diesel Engines . . . . . . . . . . . . . . . . . . . . . . . . 10-3 w/Electronic Instrument Panels) . . . . . . . . . . 15-32
Diesel Engine Break-In Oil . . . . . . . . . . . . . . . . . 10-4

Stopping the Engine (Engines With
Diesel Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . 10-5

Standard Instrument Panels). . . . . . . . . . . . . 15-33
Extended Diesel Engine Oil Service Intervals . . . 10-6

Stopping the Engine (Engines With Mixing of Lubricants . . . . . . . . . . . . . . . . . . . . . . 10-6

Electronic Instrument Panel) . . . . . . . . . . . . . 15-34

Oilscan and Coolscan. . . . . . . . . . . . . . . . . . . . . 10-7

Using a Booster Battery or Charger . . . . . . . . . 15-35
Alternative and Synthetic Lubricants. . . . . . . . . . 10-7
Lubricant Storage . . . . . . . . . . . . . . . . . . . . . . . . 10-8
Grease . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-8 Lubrication and Maintenance
Diesel Engine Coolant . . . . . . . . . . . . . . . . . . . . 10-9

Observe Service Intervals. . . . . . . . . . . . . . . . . . 20-1

Diesel Engine Coolants And Supplemental Use Correct Fuels, Lubricants and Coolants. . . . 20-1
Additive Information . . . . . . . . . . . . . . . . . . . 10-10

Lubrication and Maintenance Service
Testing Diesel Engine Coolant . . . . . . . . . . . . . 10-11

Interval Chart - Prime Power. . . . . . . . . . . . . . 20-2
Suppemental Coolant Additives . . . . . . . . . . . . 10-12 Lubrication and Maintenance Service
Operating in Warm Temperature Climates . . . . 10-12

Interval Chart - Standby Power . . . . . . . . . . . . 20-4
Disposing of Coolant . . . . . . . . . . . . . . . . . . . . 10-13
Lubrication & Maintenance/Daily Engine Operating Guidelines

Daily Prestarting Checks . . . . . . . . . . . . . . . . . . 25-1

Instrument (Gauge) Panels (Standard) . . . . . . . . 15-1
Instrument (Gauge) Panel (Electronic) . . . . . . . . 15-3 Lubrication & Maintenance/250 Hour/6 Month
Using Diagnostic Gauge to Access Servicing Fire Extinguisher . . . . . . . . . . . . . . . . . 30-1
Engine Information (Electronic Panel) . . . . . . . 15-8

Lubricating PTO Clutch Shaft Bearings . . . . . . . 30-1
Using Touch Switches to Display Servicing Battery. . . . . . . . . . . . . . . . . . . . . . . . 30-2

Information . . . . . . . . . . . . . . . . . . . . . . . . . . 15-11

Handling Batteries Safely . . . . . . . . . . . . . . . . . . 30-3
Changing Units of Measure (English or Changing Engine Oil and Replacing Oil Filter . . . 30-4
Metric). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-13

Checking PTO Clutch Adjustment. . . . . . . . . . . . 30-6
Viewing Engine Configuration Data . . . . . . . . . 15-15
Viewing Active Engine Service Codes (DTC) . . 15-17

And Much More ...

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