John Deere POWERTECH6.8 L 6068 Compressed Natural Gas Engine Component Technical Manual

John Deere POWERTECH6.8 L 6068 Compressed Natural Gas Engine Component Technical Manual

This is the John Deere POWERTECH6.8 L 6068 Compressed Natural Gas Engine Component Technical Manual, as a PDF. It runs to 384 pages in 16 parts.

It covers the John Deere POWERTECH6.8 engine. It is John Deere's repair manual: removal, disassembly, overhaul and installation of components.

Publication number: CTM146.

About the engine manual

The engine manual covers the engine itself: disassembly, inspection, measurements, rebuild and adjustment, with the fits, clearances and torque values from the manufacturer.

What is inside

Its chapters cover the engine, the fuel system, cooling, the hydraulic system, the electrical system, maintenance, emissions and aftertreatment and electronic controls and calibration. The largest sections are Cylinder Block, Liners, Pistons, and Rods (56 pages), Cylinder Head and Valves (50 pages) and Crankshaft, Main Bearings, and Flywheel (46 pages).

• Introduction (3 pages)
• Safety (12 pages)
• General Information (4 pages)
• Fuels, Lubricants, and Coolant (14 pages)
• Engine Mounting (8 pages)
• Engine Rebuild Guide (6 pages)
• Cylinder Head and Valves (50 pages)
• Cylinder Block, Liners, Pistons, and Rods (56 pages)
• Crankshaft, Main Bearings, and Flywheel (46 pages)
• Camshaft and Timing Gear Train (38 pages)
• Lubrication System (24 pages)
• Cooling System (20 pages)
• Air Intake and Exhaust System (22 pages)
• Fuel Supply System (12 pages)
• Starting and Charging System (10 pages)
• Electronic Engine Controls (34 pages)

What you can do with it

• Remove and overhaul components
• Check wear limits and fits
• Use the correct torque values and special tools

Who it is for

Owners and operators who maintain their own machines, contractors' and rental workshops, independent repair shops and dealers.

Make sure it is your engine

Check the engine model and serial number on the engine plate before ordering.

Questions about this manual

Which machines does this manual cover?
The John Deere POWERTECH6.8. If your machine has a different model number, look for the manual for that model.

Is it the original manufacturer manual?
Yes. It is John Deere's own repair manual, not a third-party reprint or a summary.

How many pages does it have?
384 pages, in 16 parts listed above.

How do I receive it?
It is a PDF. After payment it is available to download from your account, and you can read it on a computer, tablet or phone or print the pages you need. No printed book is shipped.