Troubleshooting
John Deere 6081 Engine Manual
Using Troubleshooting Chart
This operator’s manual applies only to the engine and those options available through the John Deere distribution network. IMPORTANT: This manual covers all POWERTECH8.1L OEM engines. Those engines produced starting in the year 1996 are noted as engines (—199,999). JOHN DEERE SERVICE AND PARTS MANUALS 0001 438 Technical Manual 300 Series OEM Engines TM1190, December 1984 0002 182 Operators Manual 4.5 and 6.8 L. 0059 462 Technical Manual PowerTech 6081 Natural Gas Engines CTM87 May 2004 0060 450 Technical Manual PowerTech 10.5 L & 12.5 L Engines CTM100 November 2006 0061 748 Technical Manual.
If you are experiencing a problem that is not listed in this chart, see your John Deere distributor for service.
When you have checked all the possible causes listed and you are still experiencing the problem, see your John Deere distributor.
Engine
IF | CHECK |
|---|---|
Wrong engine oil viscosity. PowrReverser Model: Reverser lever not in proper position. Collar Shift Model: Gear shift lever not in proper position. Engine throttle lever not pushed forward. Cold start system not being used, or malfunctioning. PTO engaged. Fuel shut-off valve CLOSED (OFF). Stale fuel / improper fuel / fuel level. Plugged fuel filter. Plugged air intake filter. Dirty or faulty fuel injectors. Blown fuse. Electrical problem. | |
ENGINE RUNS ROUGH OR STALLS | Fuel shut-off valve partially closed. Plugged fuel filter. Plugged air intake system. Fuel cap vent dirty. Faulty seat switch. Stale or improper fuel / fuel level. Dirty or faulty fuel injectors. Low coolant temperature. See your John Deere Dealer. Fuel pump not functioning properly. See your John Deere Dealer. |
Engine oil level low. Injection pump out of time. See your John Deere Dealer. Low coolant temperature. See your John Deere Dealer. Engine overheating. Idle speed too slow. | |
ENGINE OVERHEATS | Low coolant level. Cooling system needs flushing. Defective radiator cap. Defective thermostat. Defective water temperature indicator or sender. Low oil level. Loose or defective alternator belt. Do not operate at SLOW idle, operate at FAST idle. Dirty grille, radiator screen, or radiator cooling fins. Plugged air intake filter. Operating at too fast ground speed for conditions. |
Improper type of fuel. Plugged air intake system. Plugged fuel filter. Engine overheating. Operating at too fast ground speed for conditions. Engine oil viscosity too high. Low coolant temperature. See your John Deere Dealer. Improper valve clearance. See your John Deere Dealer. Dirty or faulty fuel injectors. See your John Deere Dealer. Injection pump out of time. See your John Deere Dealer. Attachment improperly adjusted. See attachment operator's manual. Improper ballast - adjust load. Rockshaft stop valve closed. | |
LOW OIL PRESSURE | Engine oil level low. Plugged oil filter. Improper type of oil. Oil leaks. |
Find and correct oil leaks. Incorrect engine oil. Plugged oil filter. Plugged air intake filter. | |
ENGINE EMITS WHITE SMOKE | Improper type of fuel. Low engine temperature. Defective thermostat. See your John Deere Dealer. Engine out of time. See your John Deere Dealer. |
Improper type of fuel. Plugged air intake system. Operating at too fast ground speed for conditions. Dirty or faulty fuel injectors. See your John Deere Dealer. Engine out of time. See your John Deere Dealer. | |
HIGH FUEL CONSUMPTION | Improper type of fuel. Plugged air intake system. Operating at too fast ground speed for conditions. Improper valve clearance. See your John Deere Dealer. Dirty or faulty fuel injectors. See your John Deere Dealer. Engine out of time. See your John Deere Dealer. Attachment improperly adjusted. See attachment operator's manual. Low engine temperature. Restricted air intake system. Plugged crankcase vent tube or baffle. |
Electrical System
IF | CHECK |
|---|---|
Loose or corroded connections. Defective battery - check electrolyte level. Dead cell in battery. Loose or defective alternator belt. Defective alternator. | |
BATTERY DISCHARGE INDICATOR STAYS ON WITH ENGINE RUNNING | Low engine speed. Defective battery. Defective alternator. Loose or defective alternator belt. |
Loose or corroded battery connections. Blown fuse. Low battery output - check electrolyte level. Neutral start switch faulty or not adjusted properly. See your John Deere Dealer. Key switch or starter faulty. See your John Deere Dealer. PowrReverser Model: Reverser lever not in proper position. Collar Shift Model: Gear shift lever not in proper position. PTO engaged. | |
STARTER TURNS SLOWLY | Low battery output - check electrolyte level. Low battery power - charge battery. Engine oil viscosity too heavy. Loose or corroded battery connections. |
ONE LIGHT CIRCUIT NOT WORKING | Blown fuse. |
Tractor
IF | CHECK |
|---|---|
Engine speed too slow. Drive shaft universal joint bearings worn. Throttle linkage out of adjustment. | |
TRACTOR WILL NOT MOVE WITH ENGINE RUNNING | Park brake locked. Transmission oil level low. Transmission oil cold - allow engine to warm. Range shift lever in NEUTRAL position. |
Low oil level. Hydraulic stop valve closed. Excessive load on hitch. Hydraulic oil too cold. Hydraulic oil suction screen clogged. | |
3-POINT HITCH DROPS SLOWLY OR DOES NOT DROP | Rate-of-drop valve closed. Rate-of-drop valve set too slowly. |
Rate-of-drop set too fast. Load too heavy. |
Brakes
IF | CHECK |
|---|---|
Brakes out of adjustment. Worn or damaged brake linkage. See your John Deere Dealer. |
Steering
IF | CHECK |
|---|---|
Improper tire inflation. Steering linkage needs lubrication. Excessive play in steering. See your John Deere Dealer. Bent wheel spindles. See your John Deere Dealer. |
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* LANGUAGE: English
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* PAGES: 506
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* Detailed illustrations, exploded diagrams, drawings and photos guide you through every service repair procedure.
* Completely Indexed, Bookmarked and Searchable!
SECTIONS INCLUDE:
SECTION 01 – GENERAL
Group 000 – Safety
Group 001 – Engine Identification
Group 002 – Fuels, Lubricants & Coolant
SECTION 02 – REPAIR & ADJUSTMENTS
Group 010 – Engine Rebuild
Group 020 – Cylinder Head & Valves Repair & Adjustment S. N. ( – 199,999)
Group 021 – Cylinder Head & Valves Repair & Adjustment S. N. (200,000 – )
Group 030 – Cylinder Block, Liners, Pistons, & Rods Repair & Adjustment
Group 040 – Crankshaft, Main Bearings & Flywheel Repair & Adjustment
Group 050 – Camshaft & Timing Gear Train Repair & Adjustment
Group 060 – Lubrication System Repair & Adjustment
Group 070 – Cooling System Repair & Adjustment
Group 080 – Air Intake & Exhaust System Repair & Adjustment
Group 100 – OEM Starting & Charging Systems Repair & Adjustment
SECTION 03 – THEORY OF OPERATION
Group 120 – Base Engine Operation
SECTION 04 – DIAGNOSTICS
Group 150 – Observable Diagnostics & Tests
SECTION 05 – TOOLS & OTHER MATERIALS
Group 170 – Repair Tools & Other Materials
Group 180 – Diagnostic Service Tools
Group 190 – Dealer Fabricated Service Tools
SECTION 06 – SPECIFICATIONS
Group 200 – Repair & General OEM Specifications
Group 210 – Diagnostic Specifications
Each section is further broken down and grouped with a “Table of Contents” and then section-specific groupings as appropriate. Excellent layout and sequencing of a large amount of detailed information on every covered area of the machine.
Lots of pictures, diagrams/illustrations, and charts
Great for tune-ups, regular maintenance or repairs. All technical details and step-by-step instructions you will need are included!
John Deere 6081 Engine Repair Manual
Excellent item for your Repair Reference Library!
John Deere 6081 Engine Manual Pdf
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