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Always use tines with similar diameter and length. Replace a bent tine immediately. If this
doesn’t happen, the machine can become unstable. Do not use thicker and/or longer tines
than supplied by us.
Shorter (worn down) tines can be used when superficial poking is desired. Make sure that
the working depth indicated on the sticker is only correct when the maximum length of the
tine is used.
When oval holes are created, it means that there is a weaker top layer and a hard layer
beneath it. Use thinner tines or wait until the (wet) top layer has dried.
When a top dressing has to be applied, then apply this first before using the Verti-Drain
®
.
If the ground is hard to poke irrigate it first, use thinner and shorter tines, or adjust the
working depth. If this does not happen the machine will eventually become damaged.
16.2 HOLLOW TINES
Hollow tines can be used to mix the soil. There are several sizes available, see the parts
page. The opening of the tine must be point towards the back of the machine, unless the
opening is located at the top of the tine. In that case the direction of the tine does not matter.
With hollow tines it is important that the tine angle is set at 90 degrees. The movement of the
tine in the soil is minimal and in this manner a nice “clean” hole is produced. When the tine
continues to move with an angle setting of less than 90 degrees, the tine could eventually
break.
If a lot of dirt is produced during the poking with the hollow tines, lower the rpm or irrigate
first. The dirt could speed up the wear and tear of your machine.
When the turf is damaged, first use solid tines to generate a healthy root system, or adjust
the working depth.
When hollow tines get blocked, it means the soil is (very) compact and solid tines need to be
used first to break open the soil. Irrigating or adjusting the working depth could also be
helpful in this situation.
16.3 MULTI-TINE BLOCKS
It is possible to use tines with a small diameter, also called needle tines (Ø8), for the Verti-
Drain
®
. They are mounted in multi-tine blocks, after which the whole set-up is mounted on
the tine holder. See the parts book for options.
17.0 OPTIONS, BACK ROLLER
The kit consists of a back roller with adjustable scraper and the support brackets with
mounting material for coupling with the Verti-Drain
®
18.0 OPTIONS, WINDROW KIT
When the poking is done with hollow tines, cores are removed from the
underground. The Windrow kit ensures that, after the Verti-Drain
®
process, the cores
are neatly placed together and afterwards can be easily removed.
