[2] DIFFERENTIAL LOCK

(1)Differential Pinion

(2)Shift Fork

(3)Differential Lock Lever

(4)Differential Gear Shaft (Right)

(5)Differential Lock Clutch

(6)Differential Case

(7)Differential Pinion Shaft

(8)Spiral Bevel Pinion

(9)Differential Gear Shaft (Left)

When resistance to the right and the left tires are greatly different due to ground conditions or type of work, the tire with less resistance slips and prevents the tractor from moving ahead. To compensate for this drawback, the differential lock restricts the differential action and causes both rear axles to rotate as a unit.

When the differential lock pedal is stepped on, it causes the differential lock lever (3) to rotate. The differential lock lever (3) will move the shift fork (2) and the differential lock clutch (5) toward the spiral bevel pinion (8). The differential lock clutch (5) engages with the teeth of the differential case (6) to make the differential case (6) and the differential lock clutch (5) to rotate together as a unit.

Therefore, the differential pinions (1) are unable to rotate around the differential pinion shaft (7) and differential revolutions are transmitted to the right and the left differential gear shaft (4), (9).

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