Design And Operation Of Safety Breakaway Device; Mower Blocking And Jams - SaMASZ SAMBA 160 Operator's Manual

Always check to make sure that the ground speed suits the conditions or work and that it does not
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create a potential source of danger.
Do not take sharp turns anytime and do not operate in reverse.
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NOTE:
When driving slower than V=5 km/h (3 mph) flow of grass is disturbed, which will result
in mower's blocking. Mowing quality is therefore impaired significantly.
Disc mower stops mowing, if there is too much of water over the meadow or after long-term
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precipitations, which causes the ground to become very loose and it is recommended to wait until
is dry,
Laid grass can be mowed only at very low height, e.g. 1.18", as when cutting grass forward knives
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have to operate under some angle. In such case, stubble surface looks creased,
Mowing laid grass with too low an incline may cause grass to wind onto drums and in result disc
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blocking,
When operating on cultivated single season meadows or after long-term high precipitations, reduce
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pressure of the cutter bar by adjusting support spring, for the cutter bar may get blocked (pushing
soil forward),
SAMBA mowers mow well while keeping a straight line. It is recommended not to turn the machine
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into a grass windrow,
For mowing both high straight and laid grass, in order to prevent blocking, dismount the right swath
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guide.

5.7.3. Design and operation of safety breakaway device

Hydraulic safety breakaway device protects mower against hitting small obstacles. In the event the
mower hits an immovable obstacle, the cutter bar folds back about 20° (Fig. 16). Operator then has
enough time to stop the tractor and avoid the mower damage.
The safety breakaway device's spring (Fig. 15) with adjustable deflection enables changing the
device's activation time.
R
Fig. 15. Mower safety breakaway device
Length of pressed safety breakaway device's steel spring (R in Fig. 15) should be R=5.12", ø 10
mm, D = 1.5". When the safety breakaway device is loosen frequently, R shall be reduced by 0.3 0.6".
Bear in mind, that too tight the spring tension may cause the breakaway device to be locked, and
therefore machine to be damaged.

5.7.4. Mower blocking and jams

When operating the mower pay attention to variable conditions on field, which may influence the
mower clogging and jams, such as: terrain unevenness, height and density of grass as well as other
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SAMBA REAR DISC MOWER
Fig. 16. Mower retracting upon use of breakaway device
OPERATOR'S MANUAL