Operator’s manual
Rotary tedder
P4-420
,
P4-471
and
P4-531
Rotary tedder
P6-651
and
P6-771
Rotary tedder
P8-790
and
P8-890
- 4 -
3.2. Design and working principle
3.2.1. 4- rotary tedder
Overview of 4- rotary tedder is provided in
Fig. 3
. 3-point linkage frame (
1
) with catch (
2
)
enables connecting tedder to the tractor 3-point linkage suspension. Drive with tractor PTO is
transmitted by intersectional gears onto rotors. The tedder comprises of three drive units: left and
right (
4
and
5
) as well as main one (
3
), onto which rotors are set with arms (
6
) and fingers (
7
).
Safety guards (
8
) are mounted on the frame and lateral drive units. For transport the two lateral
units with rotors are folded by hydraulics to vertical position and locked with a locking pawl (
9
).
Fig. 3.
Parts of 4- rotary tedder
1 – 3-point linkage frame
2 – Catch
3 – Main drive unit
4 – Left drive unit
5 – Right drive unit
6 – Raking arms
7 – Spring tines
8 – Safety guards
9 – Locking pawl
10 – Ground following mechanism
11 – Plates with luminous and reflecting elements
12 – Chain for operating position adjustment
13 – Additional chain for ground following
14 – Ground following wheel (optional)
The tedder has been equipped with ground following mechanism (
10
) enabling for following
the ground unevenness by the machine with use of 3-point linkage suspension stiff connector.
The tedder may be equipped with (optional) ground following wheel (
14
). Chain for operating
position adjustment (
12
) is used for operation on very uneven ground to be used instead of the stiff
connector. Chain (
13
) is used when adaptation range of the mechanism (
10
) is not sufficient.
When driving on public roads the tedder should be equipped with a plate with luminous and
reflecting elements (
11
), and a warning triangle for a slow driving vehicle.
1
2
5
4
6
7
8
9
10
11
12
13
14
3
