Ulva+ Conversion Kit (PDF 336 Kb)

Ulva+ Conversion Kit (PDF 336 Kb)
PARTS LIST / DIAGRAM
INSTRUCTIONS FOR THE
CONVERSION OF THE ULVA+
SPRAYER FOR USE WITH HERBICIDES
17
ITEM NO.
1
2
3
4
5
6
Items 1-6 above
7
8
9
10
11
12
13
14
15
16
17
DESCRIPTION
Pin, 1mm x 10mm
Filter, 40 mesh
Air bleed deflector
O’ring, BS125, viton
Bottle connector
Tube, 3/16” od, nylon - 0.45 m
Bottle connector assembly
Bottle connector nut
Battery case clamp
Screw, M6 x 25, slotted
Nut, M6
Handy 5 l bottle, c/w cap
Tube, 5mm id x 8mm od – 0.86m
Hose barb
O-ring
Feed nozzle, yellow
Feed nozzle, orange
Battery spacer (2 battery length)
7
PART NO.
5463
4428
5063
5148
5752
3374/45
5752 A
5753
6126
5787
3691
6167A
4309/86
5087
4876
5383
5384
BS-2
Iss: 4 03/03/05
Bromyard Industrial Estate, Bromyard,
Herefordshire, HR7 4HS, UK
Tel: + 44 (0) 1885 482397
Fax: + 44 (0) 1885 483043
E-mail: [email protected]
URL: http://www.micron.co.uk
The ULVA+ sprayer can be adapted to apply herbicides with the addition of several
accessories to produce the larger droplet size needed to minimise herbicide drift and
enable the sprayer to be held behind the operator to minimise any risk of operator
contamination.
The following items are provided by Micron as a kit for the conversion of the
ULVA+ sprayer for use with herbicides:
Battery case clamp
Bottle connector nut
TO STOP SPRAYING
If there is any spray liquid left in the
spray bottle, keep the motor running
and slowly tilt the sprayer so that the
head is above the level of the bottle and
when no more spray liquid is emitted
from the atomiser disc, switch off the
sprayer. Do not raise the spray head
above waist level with the disc still
spinning as spray may continue to be
emitted and contaminate the operator.
5 litre bottle
Air bleed tube
“Head Up” Position
AFTER SPRAYING
After spraying the sprayer should be thoroughly cleaned through with water and if
possible a little soap. This is vitally important as residues of herbicide left in the
ULVA+ could potentially damage another crop when it is sprayed with insecticide.
Hose barb feed
connector
Orange
nozzle
O-ring
Yellow
nozzle
Battery spacer
If the next use for the sprayer is for application of insecticide, the bottle, battery case
clamp and battery spacer should be removed. Remove the hose barb feed connector
and replace the one litre spray bottle.
Replace the original nozzle.
Make sure that the batteries are removed for storage and that the sprayer is stored in a
clean and dry place.
To prepare the ULVA+ for use with
herbicides:
1
Remove the switch end piece and
insert the battery spacer into the
battery case together with 3 x D
cell (R20S) batteries.
1
6
BEFORE SPRAYING
Check the wind speed and direction (below 5 kph is safest). Take special care to
avoid drift by keeping the spray head as low as possible.
2
With the switch end piece still
removed slide the battery case
clamp and bottle connector over
the battery case as shown. Push it
up to the battery fixing screw and
tighten the locking screw. Make
sure that the feed outlet is
correctly aligned with the head.
3
Remove the 1 litre spray bottle and
replace with the hose barb feed
connector as shown ensuring that
the O-ring is in place. Fit the
yellow or orange feed nozzle (see
'CHEMICAL MIXING AND
FILLING').
4
Connect the feed tube between the
feed outlet on the bottle connector
and the hose barb feed connector.
5
Adjust the head angle so that it is
located on the bottom of the three
notches as shown.
Before spraying for the first time use soap and water only to familiarise yourself with
the sprayer and to check the spray pattern produced.
TO START SPRAYING
To start spraying, first switch on the
motor and check that the atomiser disc
is spinning (never touch the disc when it
is spinning). Then, holding the spray
bottle by the handle, tilt the sprayer
backwards into the “head down” spraying position so that the spray head is
below the level of the bottle. This allows spray liquid to flow onto the atomiser disc.
The battery case should be at an angle
of around 35° to the ground with the
spray head about 20 cm above the
ground or top of the weed canopy.
Make sure that the spray head is far
enough behind you so as to avoid contaminating the back of the legs. Look
behind to ensure that the sprayer is not
leaking around the bottle connector nut
and to confirm that spray is being pro-
“Head Down” Position
Start walking at the required speed. Occasionally glance behind to ensure that
spray is being produced by the atomiser
disc (if not the feed nozzle is probably
blocked).
At the end of the row do not interrupt
the liquid flow by turning the sprayer
into the head up position, but continue
application into the next row.
5
2
ALWAYS wear gloves when handling chemicals. ALWAYS use a funnel when filling the bottle.
CHEMICAL MIXING AND FILLING
Herbicides are generally applied in higher volumes of water than insecticides –
usually 20-30 litres of spray per hectare.
The table below gives suggestions for the nozzle, band width and walking speed
combinations which give these application rates. Walking speeds will generally be
faster when spraying herbicides as these are applied when the crop is short and
passage is easier.
Total spray
volume (l/ha)
Band width
(m)
Feed nozzle
Flow rate
(ml/min)
Walking speed
(m/sec)
20
1.0
Yellow
135
1.125
25
0.8
Yellow
135
1.125
30
0.8
Orange
180
1.25
1. Half fill the spray bottle with water
2. Measure out the exact amount of
product and add to the spray bottle
3. Fill with water up to the 5 litre
mark.
4. Attach the spray bottle to the battery
case clamp making sure that the bottle connector nut is firmly tightened.
5. Shake the bottle to ensure thorough
mixing - check for leaks.
6. Wipe the bottle with a dry cloth.
These flow rates have been measured using water only. Actual flow rates will depend on the viscosity of the spray liquid used and the angle at which the operator
holds the sprayer. If the spray mixture is particularly viscous, therefore, the ULVA+
should be calibrated by the operator with the actual spray mix to be used.
To calibrate the ULVA+ remove the atomiser disc and collect and measure the volume of spray liquid dispensed in one minute with the sprayer held in the normal
“head down” spraying position (see ‘TO START SPRAYING’). DO NOT switch the
motor on. As the balance of the machine and hence angle at which it is held will vary
as the spray bottle empties, an average flow rate will be obtained if measured with the
bottle half full.
The formula below gives the relationship between band width, flow rate, walking
speed and total spray volume:
Flow rate (ml/min) = 6 x total spray volume (l/ha) x walking speed (m/s) x band width
Examples of spray mixing for one hectare:
a) glyphosate (360 g/l):
2 litres
b) 2,4-D (500 g/l)
add water:
18 litres
add water:
Total volume:
20 litres
Total volume:
3 litres
+22 litres
25 litres
i.e. 1 part glyphosate : 9 parts water
i.e. 3 parts 2,4-D : 22 parts water
e.g. 500 ml of glyphosate + 4.5 litres
of water in 5 litre spray bottle
e.g. 600 ml of 2,4-D + 4.4 litres of
water in 5 litre spray bottle.
NOTE: DUE ITS HIGH TOXICITY PARAQUAT SHOULD NOT BE APPLIED
THROUGH THE ULVA+ OR ANY OTHER LOW VOLUME SPRAYER
3
4
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