General Information
Tractor Model …………………. Cub Cadet 680 Hydro
Tractor Type …………………. Garden tractor
Manufacture Years …………………. 1982-1984
Fuel Type …………………. Gasoline
Attachments …………………. Mower Deck
Cub Cadet 680 Engine Specs
Engine Model …………………. Kohler K301
Engine Type …………………. 4-stroke, air-cooled gasoline
Number of Cylinders …………………. Single
Displacement, cu in (L) …………………. 29.1 (0.476)
Engine Bore, in (mm) …………………. 3.39 (86.0)
Engine Stroke, in (mm) …………………. 3.25 (83.0)
Maximum Engine Power, hp (kW) …………………. 12.0 (8.9)
Rated Engine Speed, rpm …………………. 3600
Compression …………………. 6.0:1
Fuel System …………………. Carburetor
Carburetor Model …………………. Kohler/Walbro
Carburetor Type …………………. Fixed main jet or adjustable main
jet
Lubrication System …………………. Splash type
Cooling System …………………. Forced-air
Ignition System …………………. Magneto or battery
Valve Clearance (Intake), in (mm) …………………. 0.008-0.010
(0.20-0.25)
Valve Clearance (Exhaust), in (mm) …………………. 0.017-0.019
(0.43-0.48)
Spark Plug Type …………………. Champion RH10
Spark Plug Size, in (mm) …………………. 0.553 (14.0)
Spark Plug Gap, in (mm) …………………. 0.026 (0.65)
Fuel Tank Capacity, gal (L) …………………. 4.0 (15.2)
Oil Capacity, qts (L) …………………. 2.2 (2.1)
Cub Cadet 680 Electrical System
Electrical System Rating, Volts …………………. 12
Charging System …………………. Generator, 15A
Starter Type …………………. Recoil
Number of Batteries …………………. 1
Battery Voltage, Volts …………………. 12
Electric Ground …………………. Negative
Power Take-Off
PTO Location …………………. Front
Front PTO Operational Type …………………. Independent
Front PTO Clutch …………………. Electric
Front PTO Speed, rpm …………………. 3600
Cub Cadet 680 Hydro Transmission
Transmission Type …………………. Shaft driven hydrostatic
Transmission Model …………………. Sundstrand
Forward/Reverse Gears …………………. Infinite
Oil Capacity, qts (L) …………………. 7.0 (6.6)
Maximum Forward Speed, mph (kph) …………………. 8.0 (12.9)
Maximum Reverse Speed, mph (kph) …………………. 4.0 (6.4)
Wheels and Tires
Drive Wheels …………………. 2WD 4×2
Steering Configuration …………………. Front steer
Steering System …………………. Manual
Brakes Type …………………. Mechanical disc
Front Tire Size …………………. 16×6.5-8
Rear Tire Size …………………. 23×10.5-12
Front Tread Width, in (mm) …………………. 29 (730)
Rear Tread Width, in (mm) …………………. 27 (680)
Cub Cadet 680 Dimensions and Weight
Wheelbase, in (mm) …………………. 44 (1110)
Length, in (mm) …………………. 72 (1820)
Height, in (mm) …………………. 43 (1090)
Overall Width, in (mm) …………………. 37.3 (945)
Ground Clearance, in (mm) …………………. 6 (152)
Turning Radius, in (mm) …………………. 81.6 (2065)
Weight, lb (kg) …………………. 660 (300)
Cub Cadet 680 Attachments
38″ Mower Deck
Mower Deck Model …………………. 38C
Mower Deck Type …………………. Mid-mount
Number of Blades …………………. 3
Cutting Width, in (mm) …………………. 38 (960)
Cutting Height, in (mm) …………………. 1-4 (20-100)
Lift System …………………. Mechanical
44″ Mower Deck
Mower Deck Model …………………. 44C
Mower Deck Type …………………. Mid-mount
Number of Blades …………………. 3
Cutting Width, in (mm) …………………. 44 (1110)
Cutting Height, in (mm) …………………. 1-4 (20-100)
Lift System …………………. Mechanical
50″ Mower Deck
Mower Deck Model …………………. 50C
Mower Deck Type …………………. Mid-mount
Number of Blades …………………. 3
Cutting Width, in (mm) …………………. 50 (1265)
Cutting Height, in (mm) …………………. 1-4 (20-100)
Lift System …………………. Mechanical