Original type "load sensing" hydraulic power-lift
The original type LOAD SENSING hydraulic power-lift makes the tractor a comprehensive working machine.
Comfortably placed within immediate operator’s reach, this system provides implement draft, working position and
drop speed control (the latter is adjusted through the "Valvematic device"). In addition, the combined draft-position
control can be obtained by suitably positioning both control levers (mixed control).
The automatic draft control device, directly connected to the lower links, assures prompt lifting response and
extraordinary sensing in detecting even the slightest implement load variations. The hydraulic power-lift is equipped
with a horizontally installed internal hydraulic cylinder. The hydraulic circuit distributor is open-centre type. The oil is
drawn from the gear case by a high-delivery hydraulic pump (the same as the auxiliary hydraulic distributor valves)
and strained by flowing through a replaceable cartridge filter. Before attaining the power-lift the oil flows first through
the auxiliary hydraulic distributors.
maker SAME - DEUTZ FAHR GROUP
with open centre control valve
type of lift standard pump p/n 2.4529.740.0
high flow pump p/n 2.4529.780.0/10
rated flow of pump (at maximum engine revolutions): standard pump l/min 41
high flow pump l/min 57,5
relief valve setting (bar) bar 180+10
minimum permissible diameter of ram piston SILVER 80 - 90 mm 109.900
SILVER 100.4 - 100.6 mm 124,900
maximum permissible diameter of ram cylinder SILVER 80 - 90 mm 110,050
SILVER 100.4 - 100.6 mm 125,050
assistor cylinder piston rod diameter(mm) mm 42
rated lift capacity with load bearing on link ends at height
of rear wheel centres (kg): SILVER 80 - 90 kg 3084
SILVER 100.4 - 100.6 kg 4156
- with assistor cylinders SILVER 80 - 90 mm 4226
tightening torque of ram fixing bolts kgm 28 ÷ 30
Nm 275 ÷ 295
tightening torque of lift system oil level pipe SILVER 80 - 90 kgm 13,5
Nm 132
CONTROLS
The manual controls for the lift system are grouped together on a relative console located to the driver’s right.
Lever with yellow knob: this is used to raise and lower the implement (Up/Down part of quadrant coloured yellow),
to select the requisite operating position when utilizing position control, and to select mix control (draft and position
combined: the part of the quadrant banded yellow and green).
The range of action allowed to the yellow lever is also indicated by a blue sector of the quadrant, and can be adjusted
by positioning a movable stop with thumb a screw which allows the repeated selection of a given lift height.
Lever with green knob: this allows selection of the soil engaging depth, which is controlled automatically according
to the resistance encountered by the implement from the ground.
The range of action is indicated by the green coloured sector in divisions from 0 to 12.
LOWERING
blue sector - FLOAT
mixed control
yellow sector - POSITION
RAISING
MAX. CONTROLLED DRAFT
MIN. CONTROLLED DRAFT
green sector - CONTROL
59
5
vehicle
rear hydraulic power-lift
262
www.maskinisten.net
www.classicmachinery.net
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