Agromehanika AGT 850, Инструкция по эксплуатации

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INSTRUCTIONS FOR USE
AGT 850 / 860
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4.7.6 CONNECTION SHAFT OPERATION
Functions, which are installed on the tractor as standard, e.g. start of connection shaft, rotation of
connection shaft according to operation mode, shut-off of connection shaft, start choke for soft start –
PTO), are described in chapter "START OF CONNECTION SHAFT (PTO)".
Additional function of premium hydraulics is soft start with activation by switch (description below).
SOFT START (PTO)
The tractor has an option of soft start also with a switch on the dashboard. In case of first connection,
according to weight of implement (force of rotation start), choke must be set first. Start the engine and:

Press and hold switch for soft start (PTO) (1), choke must be closed;

Activate switch of connection shaft (PTO) (2);

Slowly start to open choke, until connection shaft starts rotating;

Setting is complete, if you are using the same implement, it is not necessary to perform this
procedure at each connection. Otherwise, repeat the procedure.
Soft start procedure of connection shaft with switch:

Tractor must be shut down and handbrake engaged;

Use the lever to select operation mode of connection shaft engine/gearbox (see chapter
"DESCRIPTION OF CONTROL ELEMENTS FOR WORK – CONNECTION SHAFT");

Start the engine;

Press switch for soft start (PTO) (1);

Activate switch of connection shaft (PTO) (2), (oil is supplied through choke to connection shaft);

Hold the switch for soft start (PTO) (1), until the connection shaft rotates completely and then
release it. Switch automatically returns to start position and deactivates solenoid valve for soft
start (oil is supplied directly to connection shaft), connection shaft rotates.

To shut it off, see chapter "SHUTTING OFF CONNECTION SHAFT".
4.7.7 OPERATION OF HYDRAULIC LIFT MECHANISM
Rear hydraulic lift mechanism is controlled by hydraulic cylinder, which can operate one- or two-way in
connection with three-directional valve.
Operation of two-way hydraulic cylinder
Pressure, created by hydraulic oil, acts on piston in the cylinder alternately from both sides (depending on
position of shift lever), which enable work travel of piston in both directions (lifting/lowering).
Operation of one-way hydraulic cylinder
Pressure, created by hydraulic oil, acts on piston in the cylinder from one side, which enables work travel
in one direction (lifting), return travel (lowering) of cylinder is performed by external force – weight of
the implement or with a spring.
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