background image

Controls

2

Safety Precautions

4

Assembly of Unit

11

Fuel

14

Fueling

15

Control Handle

16

Starting

17

Air Filter

19

Adjusting the Carburetor

20

Operating Instructions

21

Checking Spark Plug

22

Replacing the Starter Rope
and Rewind Spring

23

Special Accessories

26

Metering Unit

27

Notes on Use of Mistblower

28

Maintenance Chart

37

Specifications

38

STIHL Incorporated Federal Emission
Control Warranty Statement

39

This Manual contains operating and
safety instructions for all STIHL SR 320,
SR 400 mistblowers.
Pay special attention to the safety
precautions outlined on pages 4 to 10.
Allow only persons who understand this
Manual to operate your mistblower.
To receive maximum performance and
satisfaction from your STIHL mistblower,
it is important that you read and under-
stand the maintenance and safety 
precautions before using your mist-
blower.
Contact your STIHL dealer or the STIHL
distributor for your area if you do not 
understand any of the instructions in this
Manual.

:DUQLQJ

Because a mistblower is a high-speed
tool, some special safety precautions
must be observed as with any other 
power tool to reduce the risk of personal 
injury. Careless or improper use may
cause serious or even fatal injury. 
STIHL’s philosophy is to continually 
improve all of its products. As a result,
engineering changes and improvements
are made from time-to-time. If the opera-
ting characteristics or the appearance of
your mistblower differ from those 
described in this Manual, please contact
your STIHL dealer for information and
assistance.

0458 352 3021. M0,15. G9. PM. Printed in USA

 1999 Andreas Stihl AG & Co., Waiblingen

&RQWHQWV

Printed on chlorine-free paper

65

Summary of Contents for SR 320

Page 1: ...STIHL SR 32D 4DD Instruction Manual Owner s Manual Assembling Safety Precautions Operating Instructions Maintenance iii...

Page 2: ...mistblower it is important that you read and under stand the maintenance and safety precautions before using your mist blower Contact your STIHL dealer or the STIHL distributor for your area if you do...

Page 3: ...tension tube 5 Throttle trigger 6 Setting lever 7 Stop switch 8 Control handle 9 Stop cock 10 Pleated hose 11 Carrying harness 12 Back plate 13 Back rest pad 14 Air filter cover 15 Rubber buffers 16 C...

Page 4: ...n DUULQJ KDUQHVV For carrying the unit DFN SODWH Helps protect the back of the user DFN UHVW SDG Increases carrying comfort LU ILOWHU FRYHU Covers the air filter element 5XEEHU EXIIHUV Elements design...

Page 5: ...tired while operating your machine take a break Tiredness may result in loss of control Working with any mistblower can be strenuous If you have any condition that might be aggravated by strenuous wo...

Page 6: ...g goggles or properly fitted safety glasses with adequate top and side protection which comply with ANSI Z 87 1 or your appli cable national standard Fellow workers must also wear eye pro tection Mist...

Page 7: ...from the operator DUQLQJ Check for fuel leakage while refueling and during operation If fuel or oil leakage is found do not start or run the engine until leak is fixed and spilled fuel has been wiped...

Page 8: ...mes never run the mistblower indoors or in poorly ventilated locations Ensure proper ventilation when working in trenches or other confined areas Keep the space behind the engine clear at all times to...

Page 9: ...nual 8VH RI KHPLFDOV ZLWK 0LVWEORZHU DUQLQJ Exercise extreme caution when handling chemicals Follow all safety precautions and instructions laid down by the manu facturer Avoid contact with chemicals...

Page 10: ...maintenance or repair work or cleaning the mistblower Do not attempt any main tenance or repair work not described in your owner s manual Have such work performed at your STIHL service shop only Check...

Page 11: ...The spark plug electrode gap should be checked with a feeler gauge at least every 50 operating hours and reset if necessary Fit a new spark plug if the electrodes are badly pitted Store mistblower in...

Page 12: ...b 2 as far as it will go Fit a nut 3 into each of the molded hexagon seats on the stub Insert a screw 4 into each nut from the other side and tighten moderately it must still be possible to turn the e...

Page 13: ...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 in posit...

Page 14: ...trol handle on the pleated hose to suit your reach Carry out the adjustment as follows Put the unit on your back Release the clamp screw 11 Slide the control handle along the pleated hose to the most...

Page 15: ...ms or even damage the engine For this reason it is essential that you use only name branded fuels Use only STIHL two stroke engine oil or equivalent branded two stroke air cooled engine oils with the...

Page 16: ...der to reduce the risk of burns or other personal injury from escaping gas vapor and fumes remove the fuel filler cap carefully so as to allow any pressure build up in the tank to release slowly DUQLQ...

Page 17: ...3 enables any engine speed or throttle position between idling and maximum speed to be selected and held To do this swing the setting lever upward to the required position The setting lever auto mati...

Page 18: ...which could be sucked in by the fan between engine and backplate 1 Starting procedure 1 1 Slide the stop switch 1 to I Move the setting lever 3 to the midway position between the two end stops The thr...

Page 19: ...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 cor rectly Continue cra...

Page 20: ...L 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 pr...

Page 21: ...peed From that position turn the high speed adjusting screw 1 8 counterclockwise richer or as far as stop Avoid risk of engine damage which can be caused by lack of lubrication and overheating Check a...

Page 22: ...e dissipated by flow of cooling air This protects engine mounted components ignition carburetor from thermal overload IWHU ILQLVKLQJ ZRUN Storing for a short period Wait for engine to cool down To avo...

Page 23: ...type spark plugs of the approved range Rectify problems which have caused fouling of spark plug Incorrect carburetor setting too much oil in fuel mix dirty air filter unfavorable running conditions e...

Page 24: ...Ease the cap out of the starter grip Remove remaining rope from the rotor and grip Tie a simple overhand knot in the end of the new starter rope 1113 195 8200 and then thread the rope through the top...

Page 25: ...engages Refit the pawls in the rotor Fit the washer on the starter post Use screwdriver or suitable pliers to install spring clip on starter post and over the pawl pegs the spring clip must point in...

Page 26: ...on of the arrow Hold the rotor steady straighten the twisted 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...

Page 27: ...with this attachment sprayers can apply chemicals and other substances which come in granulated or powder form e g fertilizers grass seed etc Booster pump kit SR 320 SR 400 The booster pump constantly...

Page 28: ...n 6 Spray rate I min US gal h Metering SR 320 SR 400 nozzle 1 0 53 8 3 0 57 9 1 2 1 42 22 5 1 54 24 5 3 2 44 38 8 2 32 36 8 Checking the metering unit without booster pump Place the unit on the ground...

Page 29: ...ort medium for the active ingredient An engine powered fan produces a powerful concentrated airstream to which the solution active ingredient in carrier liquid is added via a metering system The solut...

Page 30: ...g the length of the rows and the average height of the foliage The result is multiplied by the number of rows and then by two if both sides have to be treated Step 2 Refer to the instructions for use...

Page 31: ...tity of solution to be applied to the field is 54 litres Calculation Area 120 m 30 m 3 600 m 2 3 600 m 2 10 000 m 2 ha 0 36 ha Solution ha acre 0 6 l 0 001 4 150 l Required quan tity of solution 150 l...

Page 32: ...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 spray tube angle from horizon...

Page 33: ...They are based on a walking speed of 60 m min Discharge rate I min Solution required at working width 1 m 2 m 3 m 4 m 0 8 133 67 44 33 1 6 267 133 89 67 2 3 383 192 128 96 2 6 433 217 144 108 2 9 483...

Page 34: ...33...

Page 35: ...e to be reduced by 10 from 2 7 to 2 43 I min If this can be altered by the direction and strength of the wind is not done the quantity of solution required would in crease 10 from 54 liters to 59 4 li...

Page 36: ...for applications in which the spray tube to be held at an upward angle of more than 30 It helps maintain a constant discharge rate in all spray tube positions Furthermore active ingredients which ten...

Page 37: ...in 1 m s 3 28 ft s The detachable nozzle for older machines without baffle 1 ft s 0 305 m s screen produces a fine mist with a long range 1 ha 2 470 acre 1 acre 0 405 ha 1 ar 0 025 acre ULV rotary no...

Page 38: ...x 20 Idle setting x 20 Spark plug Readjust electrode gap x 22 Cylinder fins Clean x Spark arresting screen Inspect x Clean or replace x All accessible screws and nuts not adjusting screws Retighten x...

Page 39: ...lug suppressed NGK BPMR 7 A or without screen 0 13 2 78 L min 0 27 5 8 pt min Bosch WSR 6 F with screen 0 14 3 03 L min 0 29 6 4 pt min Heat range 200 infinitely variable Electrode gap 0 5 mm 0 02 in...

Page 40: ...s the small off road equipment engine owner you are responsible for the performance of the required mainte nance listed in your owner s manual STIHL Incorporated recommends that you retain all receipt...

Page 41: ...on Any such work shall be free of charge to the owner if it is determined that a warranted part is defective Any manufacturer approved or equivalent replacement part may be used for any warranty maint...

Page 42: ......

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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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