Mechanism For Sequential Lifting And Lowering Of Working Units; Sequential Lifting; Sequential Lowering - SaMASZ TANGO 730 Operator's Manual

5.8. Mechanism for sequential lifting and lowering of working units

CAUTION:
Rate of components lowering, and rate of swath screen lowering and lifting
is adjusted with throttle and control flow valves.
Due to the rake's design, where working units are arranged in different distances in relation to
the tractor, a mechanism for sequential lifting and lowering of working units is applied, and it is
used when driving the machine to and from a meadow. When driving to a meadow and after
switching hydraulic section to floating position, the front working unit lowers and starts raking, and
in a while the rear enters the grass, lowers and starts raking as well. When leaving a meadow the
rotor at the tractor's side lifts up to headland position as first.

5.8.1. Sequential lifting

When switching to transport position, the rear rotor's hydraulic assembly remains locked until
the front rotor reaches the transport position. Only afterwards hydraulic lowering of the rear rotor is
released. When switching from transport position to working position the rotors lower in the reverse
order.
Switching time of the control valve (Z
Turn the screw counter clockwise to set shorter time of delay in lifting of the rear unit against the
first unit. Turn the screw clockwise to set longer time of delay in lifting of the rear unit.
Fig. 28. Adjusting lifting time of front rotor against first rotor

5.8.2. Sequential lowering

To set sequential lowering of the rake's working units do the following:
switch the tractor's section lever to floating position,

set the required rate of lowering of the rear rotor by means of valve (Z

rear working unit (Fig. 29).
Instruction manual
) is adjusted with screw (S
1
– Adjustment screw, Z
S
2
- 24 -
Two rotor rake
TANGO
) on the cam (R) (Fig. 26).
2
Z
S
R
– Valve, R – Cam
1
1
2
) on the cylinder of the
2