Industrial Tractor · 1972Unverified
J.I. Case 646
J.I. Case 646 — 600 Series · 17 hp. Reference specifications; pending source verification.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
17 hp
Weight
1190 to 2580 pounds
Hover a source tag to verify
Overview
ManufacturerJ.I. CaseReference
Industrial tractorReference
Two-wheel driveReference
Manual steeringReference
Mechanical band brakesReference
Open operator station.Reference
Engine
Onan 0.8L 2-cyl gasolineReference
Engine12.3 kWReference
Onan CCKAReference
gasolineReference
2-cylinderReference
air-cooled horizontal-shaftReference
Displacement0.8 LReference
Bore/Stroke83 x 76 mmReference
Power12.3 kWReference
Compression7:1Reference
Rated RPM3600Reference
StarterelectricReference
Starter volts12Reference
SparkplugChampion H8Reference
Sparkplug gap0.635 mmReference
Point gap0.508 mmReference
Intake valve clearance0.178 mmReference
Exhaust valve clearance0.406 mmReference
Oil capacity3.8 LReference
Oil change50 hReference
Transmission
hydraulic driveReference
TransmissionHy-DriveReference
Typehydraulic driveReference
Gearsinfinite forward and reverse (2-range)Reference
Capacities
Fuel18.9 LReference
PTO & Hydraulics
Hydraulic system11.4 LReference
Typeopen centerReference
Capacity11.4 LReference
Pressure158.6 barReference
Pump flow34.1 lpmReference
Rear Type0Reference
Dimensions
Wheelbase121 cmReference
Weight1190 to 2580 poundsReference
Front tire5.70-8Reference
Rear tire27x8.50-15Reference
Industrial front5.70-8Reference
Industrial rear27x8.50-15Reference
Length274 cmReference
Width104 cmReference
Height (steering wheel)109 cmReference
Weight539 kgReference
Weight1170 kgReference
Ground clearance20 cmReference
J.I. Case 646 attachments
44" mid-mount mower deckReference
48" mid-mount mower deckReference
front-end loaderReference
backhoeReference
646 Serial Number Location
Serial number plate on left side of tractor, just ahead of steering column.Reference
Electrical
GroundnegativeReference
Charging systemflywheel alternatorReference
Charging amps20Reference
Charging volts12Reference
Battery volts12Reference
Battery AH32Reference
Attachment overview
44" mid-mount mower deckReference
48" mid-mount mower deckReference
Front-end loaderReference
BackhoeReference
J.I. Case D100 Backhoe
Backhoe typeJ.I. Case D100 BackhoeReference
Transport height255 cmReference
2-Foot flat digging depth226 cmReference
Reach from pivot281 cmReference
Loading height161 cmReference
Bucket Rotation143°Reference
Swing Arc167°Reference
Bucket force2401 kgReference
Dipperstick force905 kgReference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.