- John Deere Repair manuals English 8.12 MB. POWERTECH 8.1 L Diesel Engines Base Engine TECHNICAL MANUAL POWERTECH 8.1 L Diesel Engines — Base Engine CTM86 15JUL05 ENGLISH For complete service information also see POWERTECH 8.1 L Diesel Engines—Mechanical Fuel Systems CTM243 POWERTECH 6.8 L 8.1 L Diesel Engines—Level 3 Electronic Fuel Systems with Bosch In Line Pump CTM134 POWERTECH 8.1 L.
- John Deere 6081A, 6081H, and 6081T Powertech Engine Parts ESN 200000 and up, Piston Marked RE53000, RE64170, RE65289, RE70688, RE502656 Diesel Parts Direct carries a great selection of aftermarket parts for John Deere 6081A, 6081H, and 6081T Powertech engines, including fuel transfer pumps, oil pumps, water pumps, overhaul kits and gasket sets.
Troubleshooting
Using Troubleshooting Chart
Deere 6081 CR Fuel System: Caution: Wear safety glasses and protective clothing when working near High Pressure Common Rail (HPCR) engines that are running! Read the Deere Technical manual for complete safety instructions. These instructions supplement, but in no way replace the Deere CTM. There are two methods to bleed the 8.1L fuel system. John Deere OEM Engines. These accessories may be provided by the equipment manufacturer instead of John Deere. This operator’s manual applies only to the engine and those options available through the John Deere distribution network. IMPORTANT: This manual covers POWERTECH 8.1 L OEM engines meeting Tier I emission standards. These engines.
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. |
John Deere 6081 Engine Manual
Brakes
John Deere 6081 Engine Manual Pdf
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. |
John Deere 6081 Engine Repair Manual