Stihl SR 320 Instruction Manual
Stihl SR 320 Manual
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- Stihl SR 320 | Instruction Manual - Page 1
STIHL SR 32D, 4DD Instruction Manual Owner's Manual Assembling Safety Precautions . Operating Instructions Maintenance '" iii - Stihl SR 320 | Instruction Manual - Page 2
Metering Unit Notes on Use of Mistblower 2 Maintenance Chart 37 This Manual contains operating and 4 Specifications 38 safety instructions for all STIHL SR 320, 11 STIHL Incorporated Federal Emission SR 400 mistblowers. 14 Control Warranty Statement 39 Pay special attention to the safety - Stihl SR 320 | Instruction Manual - Page 3
352BA002 KN A003 KN 3 1 2 4 6 7 58 9 11 12 14 10 13 16 17 15 18 20 19 23 15 21 22 BA001 KN 1 = Baffle screen 2 = Nozzle 3 = Metering knob 4 = Extension tube 5 = Throttle trigger 6 = Setting lever 7 = Stop switch 8 = Control handle 9 = Stop cock 10 = Pleated hose 11 = Carrying harness - Stihl SR 320 | Instruction Manual - Page 4
To vary the direction and shape of the spray. Directs and widens the spray. For varying the spraying rate. Accessory for lengthening the discharge tube. Controls the speed of the engine. Sets the throttle to various positions. Stops engine. Handle on the flexible hose to hold and direct the tube in - Stihl SR 320 | Instruction Manual - Page 5
understand and observe the following safety precautions and warnings. Reread the owner's manual and the safety instructions periodically. Careless or improper use of the machine may cause serious injury. Have your STIHL Dealer show you how to operate your mistblower. Observe all applicable local - Stihl SR 320 | Instruction Manual - Page 6
mask. When using the mistblower, follow all of the chemical manufacturers instructions with respect to proper eye, skin, nose and mouth protection. When replaced by your STIHL dealer. Failure of one or more buffers may cause the engine or fuel tank to hit or rub against other parts, and may lead - Stihl SR 320 | Instruction Manual - Page 7
Adjust carrying harness to suit your size before starting work. This STIHL unit uses an oil-gasoline mixture for fuel (see the chapter on "Fuel" of your owner's manual). Gasoline is an extremely flammable fuel. If spilled or ignited by a spark or other ignition source, it can cause fire and serious - Stihl SR 320 | Instruction Manual - Page 8
the unit should be started and operated without assistance. For specific starting instructions, see the appropriate section of your owner's manual. Place the machine on firm ground or other solid surface in an open area. Maintain good balance and secure footing. When you pull the starter - Stihl SR 320 | Instruction Manual - Page 9
injury to the operator or bystanders as a result of the object or broken parts being thrown out at high speed. Do not place the mistblower on the operations described in your manual. Exercise extreme caution when handling chemicals. Follow all safety precautions and instructions laid down by the - Stihl SR 320 | Instruction Manual - Page 10
STIHL replacement parts for maintenance and repair. Use of parts manufactured by others may cause serious or fatal injury. Follow the maintenance and repair instructions in the appropriate section of your owner's manual in your owner's manual. Have such work performed at your STIHL service shop only. - Stihl SR 320 | Instruction Manual - Page 11
the risk of fire, do not modify or remove any part of the muffler or spark arrestor. Tighten all nuts, are badly pitted. For any maintenance please refer to the maintenance chart near the end of this manual. Store mistblower in a dry, high or locked location place and out of reach of children. - Stihl SR 320 | Instruction Manual - Page 12
Assembly of Unit The unit is partly disassembled for ease of shipment and must be completely assembled before it is used for the first time. The tools on the underside of the - Stihl SR 320 | Instruction Manual - Page 13
to the left (counterclockwise) until the metering unit (13) points in the same direction as the control handle. - Tighten the clamp screw (11). (Observe instructions in chapter "Adjusting the control handle") - Push the free end of the liquid hose (14) over the stub on the stop cock (15) and secure - Stihl SR 320 | Instruction Manual - Page 14
The pivot-mounted pleated hose allows the blower tube or spraying attachment to be rotated about 90° to the left or right (i.e. counterclockwise or clockwise) from the center position (control handle vertical). Adjusting the control handle You can adjust the position of the control handle on the - Stihl SR 320 | Instruction Manual - Page 15
could cause running problems or even damage the engine. For this reason it is essential that you use only name branded fuels! Use only STIHL two-stroke mixing, pour oil into the canister first, and then add gasoline. Gasoline Oil (STIHL 50:1 or equivalent branded TC oils) US gal. 1 2 1/2 5 US fl - Stihl SR 320 | Instruction Manual - Page 16
353BA008 353BA009 Before fueling, clean the filler cap and the area around it to ensure that no dirt falls into the tank. Always thoroughly shake the mixture in the canister before fueling your machine. Change the fuel pick up body every year. Before storing your machine for a long period, drain - Stihl SR 320 | Instruction Manual - Page 17
Control Handle The control handle has two functions. It is used to aim the airstream or the spray in the required direction. The controls (stop switch, throttle trigger and setting lever) are used to select the required engine operating condition. The stop switch (1) shuts down the engine. The - Stihl SR 320 | Instruction Manual - Page 18
Starting Before starting, place the unit on a clear patch of ground. Make sure you have a firm foothold, keep a firm grip on the machine and check that there are no objects which could be sucked in by the fan (between engine and backplate). 1. Starting procedure 1.1 Slide the stop switch (1) to "I". - Stihl SR 320 | Instruction Manual - Page 19
pull the starter rope out more than about 70 cm (27") as it might otherwise break. Do no allow the starter rope to snap back. Guide it slowly back into the housing so that it can rewind correctly. Continue cranking the engine until it begins to fire. Then open the choke - Stihl SR 320 | Instruction Manual - Page 20
dealer. STIHL dealers have trained staff and all the necessary servicing tools and equipment. The purpose of an air filter is to prevent any dust and dirt in the intake air from entering the carburetor and thus protect the moving parts of the engine from abnormal wear. Dirty air filters reduce - Stihl SR 320 | Instruction Manual - Page 21
L 353BA023 Exaust emissions are controlled by the design of the fundamental engine parameters and components (e.g. carburation, ignition, timing and valve or part timing) without the addition of any major hardware. The carburetor comes with a standard setting. This is the optimum setting to ensure - Stihl SR 320 | Instruction Manual - Page 22
high revs (full throttle off load) for the first three tank fillings. This avoids unnecessary high loads during the break-in period. As all moving parts have to bed in during the break-in period, the frictional resistances in the engine are greater during this period. The engine develops its maximum - Stihl SR 320 | Instruction Manual - Page 23
problems which have caused fouling of spark plug: Incorrect carburetor setting, too much oil in fuel mix, dirty air filter, unfavorable running conditions, e.g. operating at part deposits to form on the insulator nose which may result in trouble in operation. If engine is down on power, difficult to - Stihl SR 320 | Instruction Manual - Page 24
6 1 1 2 7 1 353BA027 353BA041 KN Remove the three screws . •• Lift the starter cover off the engine. Remove the spring clip . •• Remove the rope rotor with washer and pawl . • Ease the cap out of the starter • grip. Remove remaining rope from the rotor and grip. • Tie a simple overhand knot - Stihl SR 320 | Instruction Manual - Page 25
• Lubricate the new spring with a few • drops of non-resinous oil - Remove the rope rotor - • see "Replacing Starter Rope" Remove parts of old spring. 353BA036 T • Thread the rope through the rotor and secure it with a simple overhand knot. • Coat rope rotor bearing bore with • non-resinous - Stihl SR 320 | Instruction Manual - Page 26
rope Release the rotor - •• Let go of rope slowly so that it winds onto the rotor. The starter grip must sit firmly in the rope guide bush. If the grip droops to one side: Increase spring tension by one additional turn. - Stihl SR 320 | Instruction Manual - Page 27
spray mix and ensures a uniform spray rate, regardless of the position in which the mistblower tube is held. ULV rotary nozzle kit (SR 320, SR 400) Units equipped with the ULV rotary nozzle are capable of spreading very small quantities of special chemicals. To guarantee constant spray rates with - Stihl SR 320 | Instruction Manual - Page 28
engine at full throttle, spray the contents of the container down to the 5 liter (1 gal) mark and make a note of the time taken. The SR 320 and SR 400 should spray 5 liters (1 gal) fluid within 80 to 100 seconds. If the time required is longer, check the metering unit for contamination and clean it - Stihl SR 320 | Instruction Manual - Page 29
by a high-pressure pump and a small-bore nozzle. The size of the droplets formed in this process is generally in the order of 300 to 400 um. Owing to the resultant small number of droplets, which have to wet the same crop area as in low-volume mistblowing, the active ingredients - Stihl SR 320 | Instruction Manual - Page 30
not harm useful insects. Local plant protection services and other experts provide information on the best if both sides have to be treated. Step 2: Refer to the instructions for use supplied with the active in gredient to establish the required ratio of 1 part pesticide to 1,000 parts water. 29 - Stihl SR 320 | Instruction Manual - Page 31
for the purposes of this example. Other mix ratios are possible in practical applications on the basis of empirical values, special requirements or explicit instructions. The graph makes it easier to determine the quantity of solution required. You can use a ruler and pencil to mark in your own - Stihl SR 320 | Instruction Manual - Page 32
Preparations for mistblowing Before starting work it is necessary to determine the following points, which affect the liquid discharge rate per unit area and thus the distribution of active ingredient in the crop: • Working width • Walking speed • Unit's discharge rate per unit time • Position of - Stihl SR 320 | Instruction Manual - Page 33
are given in the mistblower's instruction manual. The following table can also be used as a rough guide for selecting discharge rates. angle of the spray tube is increased, e. g. mistblowing high trees. STIHL recommends the use of a pressure pump (special accessory) for applications which require - Stihl SR 320 | Instruction Manual - Page 34
33 - Stihl SR 320 | Instruction Manual - Page 35
Use of mistblower In mistblowing the solution flows from the container, down through the open shut-off cock and the metering nozzle to the spray tube. The jet of solution is injected into the airstream, atomized and discharged. The airstream is permeated more or less uniformly with very fine - Stihl SR 320 | Instruction Manual - Page 36
In our example the setting of the metering unit would have to be reduced by 17%, from 2.7 to 2.24 I/min. If this is not done, the quantity of solution required would increase 17%, from 54 liters to 63.2 liters. If both these variations occurred at the same time, the setting of the metering unit - Stihl SR 320 | Instruction Manual - Page 37
purpose. The detachable nozzle (for older machines) without baffle screen produces a fine mist with a long range. ULV rotary nozzle (special accessory) The STIHL ULV nozzle produces droplets with a size of about 50 gym. It enables highly concentrated substances to be applied with very little carrier - Stihl SR 320 | Instruction Manual - Page 38
unit should carry out only the maintenance operations described in this manual. Other repair work may be performed only by an authorized STIHL Service dealer. Original STIHL parts can be identified by the STlHL part number, the logo and the STIHL parts symbol The symbol may appear alone on small - Stihl SR 320 | Instruction Manual - Page 39
Specifications Engine STIHL single cylinder two-stroke engine SR 320 SR 400 Displacement: 44.9 cm³ 56.5 cm³ (2.74 cu.in) (3.45 cu.in) Bore: 41 mm (1.61 in) 46 mm (1.81 in) Stroke: 34 mm (1.34 in) 34 mm (1.34 in) Engine power: 2,0 kW 2,5 kW For US only: 320 L Bystander noise per - Stihl SR 320 | Instruction Manual - Page 40
your small off-road equipment engine or a part has failed due to abuse, neglect, improper maintenance or unapproved modifications. You are responsible for presenting your small off-road equipment engine to a STIHL service center as soon as a problem exists. The warranty repairs will be completed in - Stihl SR 320 | Instruction Manual - Page 41
list specifically defines the emission-related warranted parts: Carburetor Choke (Cold start enrichment system) Intake manifold Air filter Spark plug Magneto or electronic ignition system (ignition module) Catalytic converter (if applicable) Fasteners The maintenance instructions in this manual - Stihl SR 320 | Instruction Manual - Page 42
- Stihl SR 320 | Instruction Manual - Page 43
- Stihl SR 320 | Instruction Manual - Page 44
&. WARNING! The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. 0458 352 3021 englisch/englisch USA/CARB/EPA
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STIHL
SR
32D,
4DD
Instruction
Manual
Owner's
Manual
Assembling
Safety Precautions
Operating
Instructions
Maintenance
.
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