Zetor MAJOR HS, Operator'S Manual

Page: 75 / 140

Mixed regulation of three-point linkage heave
MHS16N036
Mixed regulation of three-point linkage heave is a means of regulation with which the tools connected in rear
three-point linkage is automatically vertically adjusted depending on the change in soil resistance, while it is
prevented for the depth to grow in soil cultivation with smaller soil resistance. The depth setting of soil
cultivation is done with a lever (1) as is the case with Power regulation of three-point linkage heave. Shift
lever (2) then in the direction of an arrow to the moment, when three-point linkage arms start lifting lightly.
Mixed regulation is set by this. Tools connected in rear three-point linkage can be lifted only by shifting the
lever (2) to (e) position at the end of a row. Tool is returned back to working position by shifting the lever (2)
to original setting.
External hydraulic circuit
Extrernal hydraulic circuit control elements
Supplies pressure oil for hydraulic devices connected to
external outlet of hydraulics finished with quick-couplers.
Quick-coupler sockets with 12,5 mm clearance
correspond to international ISO recommendation.
MHS16N037
The control levers of the outer hydraulic circuits are
located on the right mudguard of the cabin.
These distributors of the outer hydraulic circuit can be
mounted according to the tractor equipment.
A - three-section distributor
B - two-section distributor
a - the lever (a) controls quick couplers (1) and (2)
b - the lever (b) controls quick couplers (3) and (4)
c - the lever (c) controls quick couplers (5) and (6)
The quick coupler (0) is directly connected with the area of
the distributor and is designed for return oil from outer
hydraulic appliances (e.g., from rotation hydro engines,
etc.).
MHS16N088
HYDRAULIC SYSTEM
74