Unigreen Master UMP 50 Manuel de l'opérateur télécharger pdf (Page 12)

Page 11

Operation

Silvamatic Control Unit (continued)

Suck Back Device

The Silvamatic control incorporates a suck back

device which operates on all open outlets while

the selector lever is in by-pass.

This prevents the boom nozzles dripping if the

tractor PTO is running while the unit is not

spraying.

Self Cleaning Filter

A self cleaning filter is incorporated in the control

unit to remove impurities from fluid pumped to

the boom. While the compensating pressure

regulator is operating, the filter is self cleaning

and the impurities which are removed are sent

back to the tank.

To inspect the filter, remove the two U shaped

wires that retain the compensating return hose

and remove the filter. If cleaning is necessary

use a soft brush. When reinstalling the filter take

care that the pointed end is towards the outside

of the control unit. Refer to the diagram on the

Spray Booms

A variety of booms may be used with Silvan

linkage sprayers depending upon the model and

field application. All have stainless steel

spraylines fitted with non-drip fan jet nozzles.

Booms are part of the standard equipment on

some models or in other cases they may be

installed by the dealer or owner.

On all types of boom, the setting of the correct

operating height is most important to achieve a

uniform spraying pattern. This needs to be at a

height above the target which will achieve 50%

overlap of the spray from adjacent nozzles - refer

Calibration section of this manual.

Always ensure that the boom is unfolded in a

safe area where it will not foul any other objects.

Field Boom

Field booms of 6 or 8 metre width are of

galavanized steel truss construction. The three

section fold allows the outer arms to break back

if an obstacle is contacted and automatically

return to the operating position when passed.

For transport the boom is folded horizontally by

swinging the outer arms rearwards through 180

until against the fixed centre section, where they

are retained by the action of the hinge springs.

The arms are simply folded outwards to the

spraying position when required.

The rear uprights of the sprayer frame include a

series of holes to enable the boom to be attached at

a height suitable for the tractor size and spraying

application. Final spraying height is regulated by use

of the tractor linkage control.

FieldMaster Boom

FieldMaster booms in 10 and 12 metre widths are of

galvanized steel truss construction with a deep front

leg on the boom section to protect the spray nozzles

from damage. The three section boom features

double folding outer arms for compact and

convenient transporting.

The suspension system operates in the spraying and

transport positions through a parallelogram linkage

with tension springs and shock absorbing dampers.

Boom height is manually adjusted by a crank and

cable mechanism.

To fold the boom for transport, swing the outer arm

up and over, on to the support saddle of the inner

arm. Swing the inner arm horizontally rearwards

through 180 degrees until it rests across the centre

section, where it will be held by the action of the

spring in the hinge. Repeat for the other side.

Reverse the process to return the boom to the

operating position.

Adjusting Spraying Height

To adjust the spraying height first set the sprayer at

the approximate height with the tractor linkage then

adjust the boom lift. Insert a suitable bar through the

holes in the winch shaft on the right hand side of the

boom support. Lift the locking pawl from the ratchet

and wind the winch shaft to the required boom

height. Reset the locking pawl to hold the boom in

position then remove the bar from the winch shaft.

Check that the boom is horizontal. If levelling is

needed this can be done by adjusting the length of

the lifting cables. Lower the boom to minimum height

and fully unwind the cables. Remove the U-clamp

from the cable on the side to be raised, adjust the

cable length and retighten the clamp. Raise the boom

and check whether it is level.

The boom lift requires little maintenance but care

should be taken to ensure that the linkage arms are

not allowed to become loose, allowing sideways

movement of the boom. The lock nuts should be

kept sufficiently tight to eliminate side clearance

without the linkage binding. If the boom height setting

restricts suspension travel, then the suspension

assembly will have to be raised or lowered on its

mountings.

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 20 21

Commentaires sur ces manuels

Pas de commentaire

Unigreen Master UMP 50 Manuel de l'opérateur Page 12

Commentaires sur ces manuels

Produits connexes et manuels pour Diffuseur Unigreen Master UMP 50