Preparations for mistblowing
Rule of thumb: Normal length of stride is 0.7 to 0.9 m, but
can be up to 1.0 m. Measuring the distance is better than
counting the number of steps. Dividing the distance in
meters by the time in minutes produces the walking speed
in meters or yards per minute (m/min)
Before starting work it is necessary to determine the follow-
ing points, which affect the liquid discharge rate per unit
area and thus the distribution of active ingredient in the
crop:
The discharge rate per unit time liters/min is infinitely
variable on the mistblower's metering unit. The required
discharge rate is determined by the area to be treated, the
quantity of solution, the working width and the walking
speed. It can be calculated with the aid of the following
equation:
•
•
•
•
Working width
Walking speed
Unit's discharge rate per unit time
Position of spray tube (angle from horizontal)
Among other factors, the working width is dependent on
the crop and is determined by the distance between rows
of trees, shrubs and bushes. In the case of low-growing
crops, the best working width is about 4 m, but can be up
to 5 m if the user adjusts his walking speed accordingly.
The working width should be marked with stakes to avoid
any deviation.
Vsol (I) • VW (m/min) • b (m)
2
A (m )
=Vdis
(I/min)
Where:
V
V
b
= Quantity of solution
= Walking speed
= Working width
= Area
sol
W
A
The walking speed can vary greatly from user to user. For
this reason it is advisable to do a trial run with the machine
fueled and the container filled with water, and make a note
of the time taken (stop watch). While walking, the spray
tube should be operated as it will be during the real run
described below.
V
= Discharge rate
dis
This trial run is also used to check the working width, i.e.
the greater the width, the slower the walking speed. Check
the distance walked in one minute.
31
| Categories | Backpack Sprayer Manuals, Blower Vacuum and Sweeper Manuals, STIHL Backpack Sprayer Manuals, STIHL Blower and Vacuum Manuals |
|---|---|
| Tags | STIHL SR 320, STIHL SR 400 |
| Download File |
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| Language | English, Español |
| Product Brand | STIHL. Stihl Inc, USA - Corporate phone: (757) 486-9100. International Support Information: http://stihl.com Email: info@stihl.com, Blower Vacuum |
| Document File Type | |
| Publisher | stihl.com |
| Wikipedia's Page | Stihl |
| Copyright | Attribution Non-commercial |
(2 votes, average: 4 out of 4)
Lawn and Garden readers have rated STIHL SR 320 400 Blower Power Sprayer Owners Manual 4.0 out of 4.0 based on 2 product reviews. Stilh power spray blower was excellent
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