STIHL SG 31 Manuel utilisateur

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STIHL SG 31

Instruction Manual

Notice d’emploi

G Instruction Manual

1 - 18

F Notice d’emploi

19 - 37

Original Instruction ManualPrinted on chlorine-free paper

Printing inks contain vegetable oils, paper can be recycled.

0458-595-8221-A. VA5.K18.

0000006687_007_GB

SG 31

English

1

{

with electronic systems.

Contents

Dear Customer,

Thank you for choosing a quality

engineered STIHL product.

It has been built using modern

production techniques and

comprehensive quality assurance.

Every effort has been made to ensure

your satisfaction and trouble-free use of

the product.

Please contact your dealer or our sales

company if you have any queries

concerning this product.

Your

Dr. Nikolas Stihl

Guide to Using this Manual 2

Safety Precautions and Working

Techniques 2

Assembling the Unit 6

Controls 7

Preparing Unit for Operation 9

Filling the Container 10

Spraying 10

After Spraying 11

Storing the Machine 11

Inspection and Maintenance by

User 11

Maintenance and Care 14

Main Parts 15

Specifications 16

Troubleshooting 17

Maintenance and Repairs 18

Disposal 18

SG 31

English

2

Pictograms

All the pictograms attached to the

machine are shown and explained in this

manual.

Symbols in text

WARNING

Warning where there is a risk of an

accident or personal injury or serious

damage to property.

NOTICE

Caution where there is a risk of

damaging the machine or its individual

components.

Engineering improvements

STIHL's philosophy is to continually

improve all of its products. For this

reason we may modify the design,

engineering and appearance of our

products periodically.

Therefore, some changes, modifications

and improvements may not be covered

in this manual.

This instruction manual covers a STIHL

sprayer which is also referred to as the

unit in the descriptions.

General

Observe all applicable local safety

regulations, standards and ordinances.

If you have not used this model before:

Have your dealer or other experienced

user show you how it is operated or

attend a special course in its operation.

Minors should never be allowed to use

this product.

Keep bystanders, especially children,

and animals away from the work area.

When the sprayer is not in use, put it in

a place where it does not endanger

others. Secure it against unauthorized

use.

The user is responsible for avoiding

injury to third parties or damage to their

property.

Do not lend or rent your sprayer without

the instruction manual. Be sure that

anyone using it understands the

information contained in this manual.

Do not operate your sprayer if any of its

components are damaged. Make sure

that all components are properly sealed

– no leaks.

Pressurize the tank only with the pump

that is installed in the sprayer.

Operate the sprayer only if it is complete

and properly assembled.

To operate this sprayer you must be

rested, in good physical condition and

mental health.

Do not operate the sprayer if you are

under the influence of any substance

(drugs, alcohol) which might impair

vision, dexterity or judgment.

Intended use

The sprayer is suitable for spraying

chemicals and other liquids to control

pests and weeds. Typical areas of

application are in fruit and vegetable

growing, horticulture, plantations,

grassland and the forestry industry.

Only use plant protection products that

are specifically approved for use in

sprayers.

Do not use your sprayer for any other

purpose because of the increased risk of

accidents and damage to the sprayer.

Never attempt to modify your sprayer in

any way since this may result in

accidents or damage to the sprayer.

Guide to Using this Manual Safety Precautions and

Working Techniques

Special safety precau-

tions must be observed

when working with this

sprayer.

It is important that you

read the instruction man-

ual before first use and

keep it in a safe place for

future reference. Non-

observance of the

instruction manual may

result in serious or even

fatal injury.

SG 31

English

3

Clothing and Equipment

Wear proper protective clothing and

equipment when using, filling and

cleaning the sprayer. Follow the

chemical manufacturer's instructions

with respect to protective equipment.

Clothing must be snug-fitting but allow

complete freedom of movement.

Immediately change work clothes

contaminated with plant control

chemicals.

If you are spraying overhead, wear

impermeable head covering.

Do not wear sandals or go barefoot.

WARNING

Wear a suitable respirator.

Inhaling plant control chemicals may

endanger your health. Always wear a

suitable respirator to protect yourself

against health risks and allergic

reactions. Observe warnings in the

directions for use of the plant protection

product and all applicable local safety

regulations, standards and ordinances.

Transport

Transporting in a vehicle:

– Properly secure the sprayer to

prevent turnover and damage.

– The tank must be de-pressurized,

empty and clean.

Cleaning

Clean plastic surfaces with a cloth. Do

not use aggressive detergents. They

may damage the plastic.

Do not use a pressure washer to clean

the unit. The solid jet of water may

damage parts of the unit.

Accessories

Only use parts and accessories that are

explicitly approved for this tool by STIHL

or are technically identical. If you have

any questions in this respect, consult a

servicing dealer. Use only high quality

parts and accessories in order to avoid

the risk of accidents and damage to the

tool.

STIHL recommends the use of genuine

STIHL replacement parts. They are

specifically designed to match your

model and meet your performance

requirements.

Never attempt to modify your tool in any

way since this may increase the risk of

personal injury. STIHL excludes all

liability for personal injury and damage

to property caused while using

unauthorized attachments.

Handling Chemicals

Read the instructions supplied with the

plant protection chemical prior to use.

Follow the instructions with respect to

mixing, using, personal protection

equipment, storage and disposal.

Observe legal requirements for handling

plant protection chemicals.

Plant protection chemicals may contain

substances that are harmful to humans,

animals, plants and the environment –

risk of poisoning and risk of serious or

fatal injuries!

Avoid contact with plant protection

chemicals.

For some chemicals it is

necessary to wear imper-

meable coveralls.

Wear impermeable safety

boots with a non-slip sole

which are resistant to

plant control chemicals.

Wear impermeable

gloves resistant to plant

control chemicals.

To reduce the risk of eye

injuries, wear snug-fitting

safety glasses in accord-

ance with European

Standard EN 166. Make

sure the safety glasses

are a good fit.

SG 31

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4

Plant protection chemicals may be used

only by persons trained in their handling

and the appropriate first-aid measures.

Keep instructions or label of the plant

protection chemical available at all times

in order to inform the doctor about the

chemical concerned in an emergency. In

an emergency, follow the chemical

manufacturer's instructions provided or

on the label. Observe manufacturer's

safety data sheets.

Mixing plant protection chemicals and

filling tank

Use plant protection chemicals only as

specified by the manufacturer.

– Before filling the tank with

chemicals, carry out a test with fresh

water and check all parts of the

sprayer for leaks.

– Never apply undiluted liquid

concentrates of plant protection

products.

– Mix the plant protection chemical

and fill the tank outdoors only or in

well-ventilated locations.

– Only mix sufficient solution for the

job in hand so that nothing is left

over.

– Do not mix different plant protection

products unless such a mixture is

approved by the manufacturer.

– Mix different chemicals only in

accordance with the manufacturer's

instructions – incorrect mixtures

may produce toxic fumes or

explosive solutions.

– Stand the sprayer on a level surface

– do not fill the tank above the

maximum mark.

– When filling from central water

supply, do not immerse the end of

the hose in the solution – sudden

low pressure in the system may

cause the solution to be sucked

back into the water supply.

– To reduce the risk of injury, do not

fill the sprayer while carrying it.

– Close the tank tightly after filling.

Application

– Work only in the open or in very well

ventilated locations, e.g. open

greenhouses.

– Do not eat, drink or smoke while

working with plant control

chemicals.

– Never blow through nozzles or other

components by mouth.

– Do not spray in windy conditions.

Too high or too low a spray pressure or

unfavorable weather conditions can

result in the wrong solution

concentration. Overdosing may damage

plants and the environment. Under-

dosing may result in unsuccessful plant

treatment.

To reduce the risk of damage to plants

and the environment, do not operate the

sprayer:

– if pressure is too high or too low

– in windy conditions

– at temperatures above 30 °C in the

shade

– in direct sunlight

In order to reduce the risk of accidents

and damage to the sprayer, never

operate the sprayer with:

– flammable liquids

– viscous or sticky liquids

– caustic or corrosive chemicals

– liquids hotter than 30 °C

Storage

– During work breaks, do not leave

the sprayer in the hot sun or near

any heat source.

– Do not store plant protection

chemical in the sprayer for longer

than one day.

– Store and transport plant protection

products only in approved

containers.

– Never store the plant protection

products in containers intended for

foods, drinks or animal feed.

– Do not store plant protection

products with foods, drinks or

animal feed.

– Keep plant protection products out

of the reach of children and animals.

– Store the sprayer empty and clean.

It must not be under pressure.

– Store plant protection products and

power tool in a place secured

against unauthorized use.

– Store the unit in a dry place

protected from frost.

SG 31

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5

Disposal

Dispose of plant protection chemicals in

accordance with environmental

requirements – follow instructions of

chemical manufacturer.

Never dispose of residual plant

protection products or contaminated

rinsing solutions in waterways, drains,

sewers, street gutters or manholes.

– Dispose of residual chemicals and

used containers in accordance with

local waste disposal regulations.

Holding and Controlling the Unit

Put the strap over your left shoulder so

that the unit hangs at your side. To

ensure the unit can be quickly thrown off

in an emergency, do not wear the strap

across your chest.

Hold the sprayer with your right hand on

the spray gun and your left hand on the

pump handle.

Walk slowly forwards as you work –

observe the nozzle outlet at all times –

do not walk backwards – risk of

stumbling.

To reduce the risk of spillage and injury,

hold the sprayer upright.

During Operation

Never spray in the direction of

bystanders – risk of injury.

Take special care in slippery conditions

– damp, snow, ice, on slopes or uneven

ground.

Watch out for obstacles: Be careful of

refuse, tree stumps, roots and ditches

which could cause you to trip or stumble.

To reduce the risk of accidents, take a

break in good time to avoid tiredness or

exhaustion.

Work calmly and carefully – in daylight

conditions and only when visibility is

good. Stay alert so as not to endanger

others.

Never work on a ladder or any other

insecure support.

When working in open ground and

gardens take special care to avoid

harming small animals.

To reduce the risk of electrocution,

never work in the vicinity of live wires or

power cables.

Always clean the sprayer before

changing to a different plant protection

product.

After Finishing Work

Check all parts of the unit for leaks.

After finishing work, thoroughly clean the

unit and wash your hands, face and, if

necessary, your clothes.

Keep other persons and animals away

from the areas that have been sprayed

and do not walk on them until the plant

protection chemical has dried.

Maintenance and Repairs

Do not attempt any maintenance or

repair work not described in the

instruction manual. Have all other work

performed by a servicing dealer.

STIHL recommends that you have

servicing and repair work carried out

exclusively by an authorized STIHL

servicing dealer. STIHL dealers are

regularly given the opportunity to attend

training courses and are supplied with

the necessary technical information.

Only use high-quality replacement parts

in order to avoid the risk of accidents

and damage to the unit. If you have any

questions in this respect, consult a

servicing dealer.

STIHL recommends the use of genuine

STIHL replacement parts. They are

specifically designed to match your

model and meet your performance

requirements.

Always clean and empty the tank and

release pressure in the sprayer before

carrying our any maintenance or repair

work.

6159BA001 KN

SG 31

English

6

When cleaning the tank, tube and hose

system, make sure that other persons

are not endangered by escaping liquid –

risk of injury.

N Connect the hose (1) to the spray

gun (2).

N Connect the hose (1) to the solution

container (3).

N Connect the wand (4) to the spray

gun (2).

Shoulder strap

N Pull the buckle off the shoulder

strap.

N Ease the housing outwards and

thread the strap through the

openings from below.

N Thread the ends of the strap

through the buckle.

Assembling the Unit

1

2

3

6159BA002 KN

2

6159BA003 KN

4

6159BA004 KN

6159BA005 KN

SG 31

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7

Make yourself familiar with how the

controls function before using your

sprayer for the first time.

Pump

Locking the pump handle

N Push the pump handle downwards

and turn it until it engages.

Lock the pump handle:

– during operation

– when screwing the pump into the

solution container – rotate clockwise

– to unscrew the pump from the

solution container – rotate

counterclockwise

Unlocking the pump handle

N Rotate the pump handle about a

quarter turn until it disengages and

can be moved up and down freely.

Unlock the pump handle:

– to pressurize the solution container

Solution Container

Pressurizng the solution container

N Move the pump handle up and down

several times – the pressure in the

solution container rises.

The scale on the piston manometer (1)

shows the pressure in the container.

The higher the pressure in the container,

the higher the piston manometer rises –

maximum operating pressure is 3 bar.

If the maximum operating pressure is

exceeded, the relief valve in the piston

manometer releases the excess

pressure.

Controls

6159BA006 KN

6159BA007 KN

1

6159BA008 KN

SG 31

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8

Releasing pressure in solution container

N Pull the piston manometer up all the

way – pressure is released – wait

until container is completely

depressurized.

Pressure must be released:

– before filling the container

– after spraying

– to drain and clean the container

– before carrying out maintenance

work

Spray Gun

Unlocking / locking spray gun

N Push locking lever (1) upwards – the

trigger (2) is unlocked and can be

operated.

N Push the locking lever (1)

downwards – the trigger (2) is

locked to reduce the risk of

accidental operation.

Wand Extension

N Loosen the union nut (1).

N Pull the wand extension (2) out to

the required length and line it up –

nozzle orifice facing down.

N Tighten down the union nut (1)

firmly.

6159BA010 KN

1

6159BA024 KN

2

1

2

6159BA011 KN

1

6159BA012 KN

2

SG 31

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9

Changing the Nozzle

A hollow cone nozzle (1) or fan jet

nozzle (2) can be fitted to suit

requirements.

Visual Inspection

Do not operate your unit if any of its

components are damaged. It is

particularly important to check the tank

and hose connection for leaks.

Checking for Leaks

Carry out test with the tank empty.

N Pressurize the tank – move the

unlocked pump handle (1) up and

down several times until piston

manometer (2) shows a pressure of

2 bar (29 PSI).

The pressure in the tank must not drop

any more than 0.5 bar (7.25 PSI) within

the next 30 minutes.

N Operate spray gun trigger –

pressure must escape.

N Release spray gun trigger –

pressure must not escape.

N Pull out piston manometer –

pressure must escape audibly.

N Completely depressurize the tank.

1

2

6159BA013 KN

Preparing Unit for Operation

2

6159BA009 KN

1

SG 31

English

10

The tank must not be under pressure.

N Unscrew the pump from the tank.

N Stand the tank securely on a level

surface.

N Pour thoroughly mixed spray

solution through the opening

(arrow) – do not exceed maximum

capacity (check max mark on

scale).

N Screw the pump into the tank.

Visual Inspection

Do not operate your unit if any of its

components are damaged. It is

particularly important to check the

solution container and hose connections

for leaks.

Spraying

N Build up pressure – move the pump

handle up and down several times

until the piston manometer shows

the required working pressure – see

"Pressures / Spray Rates" below.

N Lock the pump handle.

Working Pressures / Spray Rates – see

"Specifications".

N Put the strap over your left shoulder

so that the unit hangs at your side.

N Operate the gun and always pay

attention to the optimal working

pressure while spraying.

N If the working pressure drops more

than 0.5 bar (7.25 PSI) , restore it by

operating the pump handle.

Filling the Container

6159BA014 KN

Spraying

6159BA001 KN

SG 31

English

11

N Completely depressurize the tank.

N Unscrew the pump from the tank.

N Drain the tank in a well-ventilated

location – collect remaining solution

in a suitable container.

Dispose of any residual spray solution in

accordance with environmental

requirements – follow instructions of

chemical manufacturer.

N Rinse the tank with clean water.

N Fill the tank with clean water, pump

and spray until the tank is empty

and completely depressurized.

N Wipe down the whole unit with a

damp cloth.

N Keep tank and pump separate for

drying and storage.

N Dry the unit and store it in a place

protected from direct sunlight and

frost.

Pump

Removing

N Unscrew the pump from the

container.

N Hold pump firmly by the cylinder

barrel and unlock the pump handle.

N Pull the pump handle (1) out of the

cylinder barrel (2) as far as stop.

N Pull pump handle and rotate it

counterclockwise until the gland (3)

is released from the cylinder barrel.

N Pull the piston rod (4) out of the

cylinder barrel.

After Spraying Storing the Machine Inspection and Maintenance

by User

6159BA015 KN

2

3

4

1

SG 31

English

12

N Lubricate the piston cup seal and O-

ring with a food-safe grease.

Installing

N Push gland (1) with piston cup

seal (2) into the cylinder barrel (3).

N Hold the gland (1) steady with your

thumb and push it into the cylinder

barrel.

N Pull the pump handle (1) upwards

as far as stop.

N Rotate the pump handle (1)

clockwise until gland (2) engages

the cylinder barrel.

N Push the pump handle (1)

downwards and lock it in position.

N Screw the pump into the container.

Cleaning the Filter

N Unscrew the handle (1) from the

spray gun and take out the filter (2).

N Rinse out the filter under running

water.

Cleaning the Nozzle

N Unscrew the hollow cone nozzle (1)

with spinner insert (2) from the

wand

or

N Unscrew the fan jet nozzle from the

wand.

N Unscrew union nut (3) from nozzle

body (6) and remove the nozzle (4)

with sealing ring (5).

6159BA016 KN

6159BA017 KN

1

2

3

6159BA018 KN

1

2

6159BA025 KN

1

2

6159BA026 KN

6

5

4

2

3

6159BA021 KN

1

SG 31

English

13

N Rinse out all parts under running

water and then reassemble.

6159BA022 KN

SG 31

English

14

Maintenance and Care

The following intervals apply to normal operating conditions only. If your daily work-

ing times are longer, shorten the specified intervals accordingly.

before starting work

after finishing work or daily

weekly

monthly

every 12 months

if problem

if damaged

as required

after 50 refills

Complete unit

Visual inspection (condition,

leaks)

X

Clean X

Tank, hose system, wand

Drain X

Clean X

Nozzle Clean XX

Filter Clean XX X

Piston cup seal Lubricate with grease XX X

O-ring Lubricate with grease XX

Safety labels Replace X

SG 31

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15

1 Fan Jet Nozzle

2 Hollow Cone Nozzle

3 Swirl Insert

4 Spray Wand Extension

5 Union Nut

6 Spray Wand

7 Spray Gun

8 Locking Lever

9 Trigger

10 Filter

11 Hose

12 Pump Handle

13 Piston Rod

14 Latch on Pump Cylinder

15 Gland

16 O-Ring

17 Pump Cylinder

18 Piston Cup Seal

19 Piston Manometer / Relief Valve

20 Container

21 Shoulder Strap

Definitions

1 Fan Jet Nozzle.

Produces a broad flat spray pattern.

2. Hollow Cone Nozzle.

Produces a conical spray pattern.

3. Swirl Insert.

Used together with hollow cone

nozzle, produces a swirl pattern.

4. Spray Wand Extension.

The pull-out spray wand extension

extends the reach.

Main Parts

6

10

5

1

2

3

9

8

4

6159BA026 KN

7

12

17

18

11

20

21

13

15

19

16

14

SG 31

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16

5. Union Nut.

To fix the spray wand extension in

the required length.

6. Spray Wand.

Feeds spray solution to the nozzle.

7. Spray Gun.

For holding and operating the spray

wand.

8. Locking Lever.

Locks the trigger to reduce the risk

of accidental operation.

9. Trigger.

Opens and closes the valve. Starts

and stops spray jet.

10. Filter in Spray Gun.

Helps prevent impurities entering

and blocking the nozzle.

11. Hose.

Feeds the spray solution from the

container to the spray gun.

12. Pump Handle.

Pump handle for producing spray

pressure.

13. Piston Rod.

Connects piston with pump handle.

14. Latch on Pump Cylinder.

To lock the pump handle.

15. Gland.

Guides the piston rod in the pump

cylinder.

16. O-Ring.

Seals the container.

17. Pump Cylinder.

Houses the piston for generating

pressure.

18. Piston Cup Seal.

Seals the pump cylinder.

19. Piston Manometer / Relief Valve.

Piston manometer shows the

pressure in the container. Relief

valve allows overpressure to

escape from the container.

20. Container.

Contains the spray solution.

21. Shoulder Strap.

For carrying the sprayer.

Hydraulic Data

Working Pressures / Spray Rates

Weight

Specifications

Spray pressure,

max.: 3 bar (43.50 PSI)

Flow volume, max.: 1.0 l/min

(61.02 cu.in/min)

Solution capacity,

max.: 5 l (1.32 US gals)

Total capacity: 6.4 l

(1.69 US gals)

Operating tempera-

ture, max.: 30°C (86°F)

Residual solution in

container: <0.04 l (1.4 fl.oz)

Recoil force: <5 N (1.12 lbf)

Spray

pressure

Flow rate with hollow

cone nozzle

1.5 bar

(21.75 PSI)

0.49 l/min

(29.9 cu.in/min)

2.0 bar

(29.0 PSI)

0.56 l/min

(34.17 cu.in/min)

3.0 bar

(43.5 PSI)

0.69 l/min

(42.11 cu.in/min)

Dry weight: 1.3 kg (2.9 lbs)

SG 31

English

17

Troubleshooting

Before starting any service work, operate the unit until it is no longer under pressure – if pressure is not released, chemical may

escape unexpectedly when working on the unit.

After servicing, carry out test run with clean water.

Condition Cause Remedy

Pumping action produces no pressure Pump not tightened down properly Lock the pump handle and tighten down

the pump

O-ring on pump damaged Install new O-ring

Piston cup seal damaged Install new piston cup seal

Jet only – spray not atomized Spinner insert in nozzle missing Fit spinner insert in the nozzle

Nozzle does not spray – pressure in

tank OK

Nozzle / spinner insert and/or filter blocked Clean nozzle / spinner insert and/or filter

Liquid entering the pump Valve disk dirty or damaged Clean or replace valve disk

Piston manometer indicates no tank

pressure; relief valve operates too

soon

Piston manometer faulty Replace the unit

SG 31

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18

Users of this machine may only carry out

the maintenance and service work

described in this user manual. All other

repairs must be carried out by a

servicing dealer.

STIHL recommends that you have

servicing and repair work carried out

exclusively by an authorized STIHL

servicing dealer. STIHL dealers are

regularly given the opportunity to attend

training courses and are supplied with

the necessary technical information.

When repairing the machine, only use

replacement parts which have been

approved by STIHL for this power tool or

are technically identical. Only use high-

quality replacement parts in order to

avoid the risk of accidents and damage

to the machine.

STIHL recommends the use of original

STIHL replacement parts.

Original STIHL parts can be identified by

the STIHL part number, the {

logo and the STIHL parts symbol K

(the symbol may appear alone on small

parts).

Observe all country-specific waste

disposal rules and regulations.

STIHL products must not be thrown in

the garbage can. Take the product,

accessories and packaging to an

approved disposal site for environment-

friendly recycling.

Contact your STIHL servicing dealer for

the latest information on waste disposal.

Maintenance and Repairs Disposal

000BA073 KN

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