Zetor Proxima GP Series, Руководство оператора

Страница: 120 / 226

Hydraulic system
Hydraulics control panel
PGPPN184
As a standard, the tractor is equipped with a rear three-point hitch control with mechanical regulation (A),
hereinafter referred to as mechanical hydraulics (the description of functions in a separate chapter).
Upon customer´s wish, the tractor may be equipped with a rear three-point hitch control with electronic
regulation, hereinafter referred to as electrohydraulics EHR (the description of functions in a separate
chapter).
1. Rear three-point hitch control (internal hydraulic circuit)
2. External hydraulic circuit control
It consists of the inner and outer circuits. Gear pump is the
source of pressure oil.
Oil is taken from reservoir shared by gearbox and
transmission.
Hydraulic pump cannot be switched off. If the engine is
working, the pump is on.
The amount supplied is:
standard 50 l/min
on request 60 l/min
The pressure in hydraulic system raised by the hydraulic
pump is restricted by a safety valve to 19 MPa.
PGPPN036
HYDRAULIC SYSTEM
119