24
Sowing Depth Control
The sowing depth is dependent on:
1 The wheel height in relation to the chassis
2 Tyre pressure
3 Ground condition i.e. hard or soft
The wheel height in relation to the chassis is controlled using
the threaded depth adjustment collar (1) on the non-drive
wheel leg ram. The rams are phasing and only require depth
stops under the master cylinder.
Level Drill
Use the drawbar turnbuckle or ram to tilt the drill so it is
sitting level. An adjustment may be required after a short
period of use because the paint wears off the discs and
the discs sharpen which in turn improves the penetration
abilities.
Ensure that the front and rear rows are at an even depth.
Transport Position
When in the transport position the hydraulic cylinders are
fully extended. In this position the cylinders fully equalise
by allowing oil to bypass the master cylinder piston. It is
recommended to raise the drill into the transport position
when turning at headlands or regularly to counteract the
effects of oil leakage past the piston and ensure cylinder
rods are equally extended and minimise variations in
sowing depth.
‘Enviro DD30’ General Operation
1
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