Duncan DO 07185, Руководство пользователя

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18
Fig 12
1
Hints for Sowing with Variable Speed
Gearbox
The gearbox allows for stepless changes in the speed of
the metering shaft and thus the seed rates. Due to the
variations in seed type and application rates there are two
speed ranges available.
By changing from High Speed to Low Speed the range of
settings and control is dramatically increased. The
machine is supplied ex factory set to the high speed
configuration. Change to the Low Speed when the gearbox
setting is down to 10 on the scale and the desired seed
rate cannot be obtained.
To change the speed setting from high to low, remove the
wing nut (1) and chain cover.(2) (Fig 9).
Release the tension on the chain (1) by forcing back the
chain tensioner (2) and hold in place with the crank
handle. Remove the chain from the 21 tooth output
sprocket to the 13 tooth sprocket, then remove the chain
from the 13 tooth gearbox sprocket to the 21 tooth. Check
the chain is correctly aligned then release the chain
tensioner. Ensure the tension roller is correctly aligned with
the chain. Replace guard and calibrate as required.
To Determine the Gearbox Setting after a
Speed Change
For determining the correct gearbox setting after the speed
change, conduct the first test at 50. With the weight of
seed collected find your correct setting with the aid of the
disc calculator, refer Page 16, Fig 8.
Sowing of Fine Seeds
For sowing fine seeds the Renovator Drill is equipped as
standard with a combined normal and fine seed “Elite”
metering wheel (1). During grain sowing and other larger
varieties of seed both the normal and fine seed metering
wheels are coupled and both rotate. In order to convert the
seed drill to sow fine seed insert the crank handle and rotate
clockwise until the holes (2) of the fine seed wheel are
visible (Fig 11)
Using the tool supplied (1) disengage the the pin inside
the hole so that the normal metering wheel rotates freely
on the metering shaft (Fig 12).
At this time it would be advisable to close
any shutter slides not required for the fine
seed sowing.
When seed is to be sown again using the
normal metering wheel press the pin, from
the normal metering wheel side (opposite
direction to before), using the tool, back into
the hole of the fine seed wheel thus
reconnecting the drive between the two.
Fig 9
Fig 10
Low Speed
21T
13T
1
Fig 11
1
2
3
1
2
3
1
2