11
@ The angle of 90 degrees means that the tines penetrate perpendicular into the ground. This is only
true if the machine is correctly set, see fig.1. If this isn't correct a push force F, see fig 5. is applied,
which can seriously damage the machine.
@ The length of the draw rod assembly should be 290.50 mm (11.437"), which can be set by the
calibrating shims, see the spare part page
.
7.0 GROUND SPEED
.
The ground speed determines the hole spacing D in the drive direction, see fig.6. The VERTI-DRAIN
doesn't need a creeper gear, however if the customer wants a close hole spacing, the ground speed
should be low enough, which depends on the tractor.
The gearbox has standard three different gearsetting, resp. 1,2 and 3. When set in 3, reduce PTO revs
till 400 rpm’s max, otherwise damage may occur.
The input speed R on the PTO may be maximum 500 rpm. When stones or rocks are expected, the
input speed should be lowered.
With heavier tines or attachments, the tineholders may start to float. Lower rpm's at that time, before
the tineholders start to turn upwards. We advise using 400 revs on PTO all the time.
In Fig.6., a graph is drawn in which the relation between the ground speed, the gear setting and the
hole spacing is given. If the tractor ground speed is known at 500 rpm's of the PTO, the hole spacing
can be determined at different gearbox settings.
@ If the machine is not set correctly behind the tractor, see fig.1., different angles at the PTO may
cause vibration into the drive line of the VERTI-DRAIN. This vibration can hurt the machine and
also the performance of the holes in the ground.
@If the gear box setting is hard to shift, rotate the crankshaft a little till the shifting is possible.
@ If the PTO shaft is incorrectly fitted (too long or too short), extra forces are applied to the input
shaft of the gearbox. Damage may occur.
* When the gearbox is shifted, shut off the tractor engine
.
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