Operation Of Differential Lock - Agrison HP ULTRA Series Operation Manual

Tread the main clutch pedal; operate the sub gear shift lever B to make it pushed leftwards
from the neutral position; and then pushed forwards to get the Medium stage M; if it is pushed
backwards, then Reverse stage R will be gotten. If it is pushed rightwards from the neutral position
and then pushed forwards, then Low stage L will be gotten; if it is pushed backwards, then high
stage H will be gotten
Tread the main clutch pedal; make the main gear shift lever A moved leftwards from the
neutral position; and then pushed backwards to get stage 2; and stage 1 will be gotten if it is
pushed forwards. If it is moved rightwards from the neutral position and then pushed backwards,
stage 4 will be gotten; and stage 3 will be gotten if it is pushed forwards.
The optimal production efficiency and economical efficiency can be obtained if the proper
driving speed of tractor is selected, and the service life of the tractor can be prolonged. The tractor
shall not often work under overload condition, and the engine shall have certain power reserve. As
to selection of driving speed when working in the field, the diesel engine shall work under about
80% load. When the tractor works under light load and the driving speed is not high, High 1 stage
small throttle work can be selected to save fuel.
The basic gear stage for field work: Low stage 4, medium stage 1, 2 and 3 for plough; low
stage 1, 2 and 3 for rotary tillage. Low stage 4, medium stage 2 and low stage 3 for harrowing.
When the diesel engine is deep-voiced and has speed drop and black smoke during operation, it
shall be changed over to low stage 1 and small throttle, so as to prevent tractor overload. When
the load is light and the working speed shall not be too high, high stage 1 and small throttle can be
selected, so as to save fuel.
Important notes:
1. When engine running, before gear shift, the main clutch pedal shall be treaded to
floor, and the gear shift shall be performed after several seconds, so as to prevent poor
engagement of sliding sleeve of gear box (which will lead to "collision of teeth");
2. The tractor only can be at back gear stage when it is still;
3. Do not make the hands placed on the gear shift lever when the tractor is driving, or
the hand pressure will be transmitted to the gear shift fork in the gear box, which will lead
to premature wear of the shift fork.

2.7 Operation of Differential Lock

During the operation or working process of tractor, if the tractor can not move forward due to
sticking or the unilateral driving wheel is slipping, the differential lock can be connected according
to the following steps to rigidly connect the left driving wheel and the right driving wheel so as to
drive the tractor out of the slipping section at the same speed.
Operation Instruction
Figure 2-1 Gear shift of tractor
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