The Farmall International 3088, 3288, 3488, 3488-Hydro and 3688 Tractors Operators / Instruction Manual. This manual is a reproduction of an original manual is an excellent source of information on using your tractor and covers maintenance and many general mechanical repairs. The operators / instruction manual gives the tractor owner / operator instructions on;

• To the Owners 

• Serial Numbers 

• Work safely follow these rules

• Tractor Instruments and Controls

• Before operating your new tractor
• Operating Your Tractor 

• Driving the tractor

• Engine and Fuel system

• Hydraulic controls for three point hitch

• Three point hitch

• Weight transfer hitch

• Hitching trailing equipment to the tractor

• Auxiliary valves, remote cylinders, and hydraulic outlets

• Power take-off

• Cooling system

• Electrical system

• Front wheels

• Rear wheels
• Differential Lock

• Weights

• Tires
• Ballasting the Tractor
• Storing the tractor

• Cold weather precautions

• Lubrication

• Lubrication tables

• Lubrication guide

• Preventive maintenance guide

• Specifications

• Optional equipment

• Universal symbols for tractor instruments and controls

• Index

Also consider purchasing both the parts and service manual for your tractor, if available. The parts manual will make it much easier to find the right parts for the job and show in detail how the components are put together, while the service manual will lay out all the procedures for you.