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Contents |
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Guide to Using this Manual .............. |
2 |
oils; |
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Safety Precautions ........................... |
3 |
containinksPrintingvegetable |
recycled.becanpaper |
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Assembling the Unit ....................... |
12 |
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Using the Hedge Cutter .................. |
13 |
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Fuel ................................................ |
15 |
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Fueling ............................................ |
16 |
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Adjusting Cutter Bar Angle ............. |
17 |
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Fitting the Harness ......................... |
18 |
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Starting / Stopping the Engine ........ |
18 |
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Cleaning the Air Filter ..................... |
21 |
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Motor Management ........................ |
22 |
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Adjusting the Carburetor ................ |
22 |
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Spark Arresting Screen* in Muffler |
. 24 |
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Checking the Spark Plug ................ |
24 |
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Lubricating the Gearbox ................. |
25 |
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Replacing the Starter Rope |
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and Rewind Spring ......................... |
26 |
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Sharpening Instructions .................. |
29 |
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Operating Instructions .................... |
29 |
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Storing the Machine ........................ |
29 |
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Parts and Controls .......................... |
31 |
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Maintenance Chart ......................... |
30 |
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Definitions ....................................... |
32 |
Printed |
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Specifications ................................. |
33 |
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Maintenance and Repairs ............... |
34 |
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STIHL Incorporated Federal |
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and California Emission Control |
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Warranty Statement ........................ |
35 |
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Germany |
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KG,2003 |
Printedin |
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* see “Guide to Using this Manual” |
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© ANDREAS STIHL AG & Co. |
0458 389 3021. M1.4. C3. PM. |
STIHl |
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English / USA
Allow only persons who understand this manual to operate your hedge cutter.
To receive maximum performance and satisfaction from your STIHL hedge cutter, it is important that you read and understand the maintenance and safety precautions, starting on page 3, before using your hedge cutter.
Contact your STIHL dealer or the STIHL distributor for your area if you do not understand any of the instructions in this manual.
!Warning!
Because a hedge cutter is a high-speed cutting tool some special safety precautions must be observed 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 operating characteristics or the appearance of your hedge cutter differs from those described in this manual, please contact your STIHL dealer for information and assistance.
HL 75, HL 75 K |
1 |
English / USA
Guide to Using this Manual
Pictograms
All the pictograms attached to the machine are shown and explained in this manual.
The operating and handling instructions are supported by illustrations.
Symbols in text
The individual steps or procedures described in the manual may be marked in different ways:
:Step or procedure without direct reference to an illustration.
Description of step or procedure that refers directly to the illustration and contains item numbers that appear in the illustration.
Example:
Loosen the screw (1) Lever (2) ...
In addition to the operating instructions, this manual may contain paragraphs that require your special attention. Such paragraphs are marked with the symbols described below:
Warning where there is a risk of an accident or personal injury or
serious damage to property.
Warning where there is a risk of damaging the machine or individual components.
Note or hint which is not essential for using the machine, but may improve the operator’s understanding of the situation and result in better use of the machine.
Note or hint on correct procedure in 
order to avoid damage to the environment.
Equipment and features
This instruction manual refers to several models with different features. Components that are not installed in all models and related applications are marked thus *. Such components are available as special accessories from your STIHL dealer.
Engineering improvements
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 operating characteristics or the appearance of your machine differ from those described in this manual, please contact your STIHL dealer for assistance.
Therefore, we cannot be responsible for changes, modifications or improvements not covered in this manual.
2 |
HL 75, HL 75 K |
Safety Precautions
Warning!
Because a hedge cutter is a high-speed, fast-cutting power tool, special safety
precautions must be observed to reduce the risk of personal injury.
It is important that you read, fully understand and observe the following safety precautions and warnings. Read the owner's manual and the
safety instructions periodically. Careless or improper use of any hedgecutter may cause serious or fatal injury.
Have your STIHL dealer show you how to operate your hedge cutter. Observe all applicable local safety regulations, standards and ordinances.
!Warning!
The use of any hedge cutter may be hazardous. If the cutting tool comes in contact with your body, it will cut you.
Striking solid foreign objects such as stones, fence wire or metal could damage the cutting attachment and may cause blades to crack, chip or break.
STIHL does not recommend the use of hedge cutters when cutting in areas where the blades could contact such objects.
!Warning!
Minors should never be allowed to use a hedge cutter. Bystanders, especially children, and animals should not be allowed in the area where a hedge cutter is in use.
The operator is responsible for avoiding injury of third parties and damage to their property.
Never let the hedge cutter run unattended.
!Warning!
Do not lend or rent your hedge cutter without the owner's manual. Be sure that anyone using your hedge cutter understands the information contained in this manual.
Safe use of a hedge cutter involves
1.the operator
2.the hedge cutter
3.the use of the hedge cutter.
English / USA
THE OPERATOR!
Physical Condition
You must be in good physical condition and mental health and not under the influence of any substance (drugs, alcohol, etc.) which might impair vision, dexterity or judgment. Do not operate a hedge cutter when you are fatigued.
Be alert - if you get tired while operating your hedge cutter, take a break. Tiredness may result in loss of control. Working with any hedge cutter can be strenuous. If you have any condition that might be aggravated by strenuous work, check with your doctor before operating a hedge cutter. Prolonged use of a hedge cutter (or other machines) exposing the operator to vibrations may produce whitefinger disease (Raynaud's phenomenon) or carpal tunnel syndrome. These conditions reduce the hand's ability to feel and regulate temperature, produce numbness and burning sensations and may cause nerve and circulation damage and tissue necrosis.
HL 75, HL 75 K |
3 |
English / USA
!Warning!
Antivibration systems do not guarantee that you will not sustain whitefinger disease or carpal tunnel syndrome. Therefore, continual and regular users should monitor closely the condition of their hands and fingers. If any of the above symptoms appear, seek medical advice immediately.
!Warning!
The ignition system of the STIHL unit produces an electromagnetic field of a very low intensity. This field may interfere with some pacemakers. To reduce the risk of serious or fatal injury, persons with pacemaker should consult their physician and the pacemaker manufacturer before operating this tool.
Proper Clothing
!Warning!
Hedge cutter operation can cause serious injury
to eyes, ears and person. Therefore, to reduce the risk of injury to your eyes never operate a hedge
cutter unless wearing goggles or properly fitted safety glasses with adequate top and side protection complying with ANSI Z 87.1 (or your applicable national standard).To reduce the risk of injury to your face STIHL recommends that you also wear a face shield or face screen over your goggles or safety glasses.
!Warning!
Hedge cutter noise may damage your hearing.
Wear sound barriers (ear plugs or ear mufflers) to
protect your hearing. Continual and regular
users should have their hearing checked regularly.
Wear an approved safety hard hat to reduce the risk of injury to your head when there is a danger of head injuries.
Wear proper protective clothing.
Protect your hands with gloves when handling the hedge cutter and the cutting tool. Heavy-duty, nonslip gloves improve your grip and help to
protect your hands.
Clothing must be sturdy and snug-fitting, but allow
complete freedom of movement. Avoid loose-
fitting jackets, scarfs, neckties, jewelry, flared or
cuffed pants, unconfined long hair or anything that could become caught on branches, brush or moving parts of the unit. Wear long pants made of heavy material to protect your legs.
Do not wear shorts.
Good footing is most important in hedge cutter work. Wear sturdy boots with nonslip soles. Steeltoed safety boots are recommended.
THE HEDGE CUTTER
For illustrations and definitions of the hedge cutter parts, see the chapter on "Parts and Controls"!
4 |
HL 75, HL 75 K |
English / USA
!Warning!
Never modify a hedge cutter in any way. Only attachments supplied by STIHL or expressly approved by STIHL for use with the specific STIHL hedge cutter models are authorized. Although certain unauthorized attachments may be useable for the STIHL hedge cutter, their use may, in fact, be extremely dangerous. Never remove or disable any safety devices.
USE OF THE HEDGE CUTTER
Transporting the hedge cutter
!Warning!
To reduce the risk of injury from blade contact, never carry or transport the hedge cutter with the cutter blades running. The correct engine idle speed is important in this respect. If the carburetor setting is correct, the cutter blades will be stationary at idle speed.
!Warning!
Always turn off the engine and make sure the cutting attachment has stopped before putting the unit down or carrying it between work stations.
389BA019 KN |
The hedge cutter may be carried only in a horizontal position. Grip the shaft in a manner that the machine is balanced horizontally. Keep the hot muffler away from your body and the cutting attachment behind you.
Always switch off the engine and fit the scabbard over the cutter blades before transporting the hedge cutter over long distances. When transporting your hedge cutter in a vehicle, properly secure it to prevent turnover, fuel spillage and damage to the hedge cutter.
Preparation for the use of the hedge cutter
!Warning!
Never use a hedge cutter that is damaged or not properly maintained. Always check your hedge cutter for proper condition and operation before starting, particularly the throttle trigger, throttle trigger interlock, stop switch and cutting tool. The throttle trigger must move freely and always spring back in the idle position.
The cutting tool must be properly tightened and in safe operating condition. Inspect for loose part (nuts, screws, etc.) and for cracked, bent, warped or damaged blades. Regularly check the condition and tightness of the cutter blades - with the engine stopped!
HL 75, HL 75 K |
5 |
English / USA
Service damaged cutter blades before using the hedge cutter. Always keep blades sharp. Keep the handles clean and dry at all times; it is particularly important to keep them free of oil and resin to ensure that you can always maintain a firm grip and safely control your machine. Stihl recommends that you always spray the cutter blades with STIHL resin solvent before starting work - with engine stopped! You can obtain this protective spray from your dealer. Apply generously.
Fueling
Your STIHL hedge cutter uses an oilgasoline mixture for fuel (see the chapter on "Fuel" of your owner's manual).
!Warning!
Gasoline is an extremely flammable fuel. If spilled
or ignited by a spark or other ignition source, it can cause fire and serious burn injury or property
damage. Use extreme caution when handling gasoline or fuel mix.
Do not smoke or bring any fire or flame near the fuel.
Fueling Instructions
Fuel your hedge cutter in well ventilated areas, outdoors.
!Warning!
Gasoline vapor pressure may build up inside the gas tank of a two cycle engine depending on the fuel used, the weather conditions, and the venting system of the tank. In order to reduce the risk of burns or other personal injury from escaping gas vapor and fumes, remove the fuel filler cap on your hedge cutter carefully so as to allow any pressure build-up in the tank to release slowly. Never remove fuel filler cap while engine is running. Select bare ground for fueling and move at least 10 feet (3 m) from the fueling spot before starting the engine.
Wipe off any spilled fuel before starting your hedge cutter and check for leakage.
Check for fuel leakage while refueling and during operation. If fuel leakage is found, do not start or run the engine until leak is fixed and spilled fuel has been wiped away. Take care not to get fuel on your clothing. If this happens, change your clothing immediately. Never attempt to fuel a running or hot engine.
!Warning!
Unit vibrations can cause an improperly tightened
fuel cap to loosen or come
off and spill quantities of
fuel.
In order to reduce risk of fuel spillage and fire, tighten fuel cap by hand with as much force as possible.
6 |
HL 75, HL 75 K |
English / USA
389BA023 KN |
Starting |
For specific starting instructions, see the appropriate section of your owner's- manual. Place the hedge cutter on firm ground or other solid surface in an open area. Maintain good balance and secure footing.
!Warning!
When the engine starts at startingthrottle, engine speed will be fast enough for the clutch to engage and move the cutting tool.
!Warning!
When you pull the starter grip, don't wrap the starter rope around your hand. Do not allow the grip to snap back, but guide the starter rope to rewind properly. Failure to follow this procedure may result in injury to hand or fingers and may damage the starter mechanism.
Catalytic converter
!Warning!
Some STIHL hedge cutter models are equipped with a catalytic converter, which is designed to reduce the exhaust emissions of the engine
by a chemical process in the muffler. Due to this process, the muffler does not cool down as rapidly as conventional mufflers when the engine returns to idle or is shut off. To reduce the risk of fire and burn injuries, the following specific safety precautions must be observed.
!Warning!
Since a muffler with a catalytic converter cools down less rapidly than conventional mufflers, always set your hedge cutter down in the upright position and never locate it where the muffler is near dry brush, grass, wood chips or other combustible materials while it is still hot.
7
English / USA
Let the engine cool down sitting on concrete, metal, bare ground or solid wood (e.g. the trunk of a felled tree) away from any combustible substances.
!Warning!
To reduce the risk of fire or burn injury, let the unit cool down before refueling your hedge cutter after use.
!Warning!
Never disassemble or modify your muffler. The muffler could be damaged and cause an increase in heat radiation or sparks, thereby increasing the risk of fire or burn injury. You may also permanently damage the engine. Have your muffler serviced and repaired by your STIHL Servicing Dealer only.
!Warning!
To reduce the risk of fire or burn injury, keep the area around the muffler clean. Remove all debris such as pine needles, branches or leaves.
!Warning!
An improperly mounted or damaged cylinder housing or a damaged/ deformed muffler shell may interfere with the cooling effect of the catalytic converter. To reduce the risk of fire or burn injury, do not continue work with a damaged or improperly mounted cylinder housing or a damaged/ deformed muffler shell. Your catalytic converter is furnished with screens designed to reduce the risk of fire from the emission of hot particles. Due to the heat from the catalytic reaction, these screens will normally stay clean and need no service or maintenance. If you experience loss of performance and you suspect a clogged screen, have your muffler maintained by a STIHL Servicing Dealer.
Working Conditions
Do not operate using the starting throttle lock as you do not have control of the engine speed. See section of your owner's manual on the proper use of the slide control.
!Warning!
Your hedge cutter produces poisonous exhaust
fumes as soon as the combustible engine is running.
These gases (e.g. carbon monoxide) may be colorless and odorless.
To reduce the risk of injury from inhalation of poisonous fumes, start and operate your hedge cutter only outdoors in a well ventilated area. Hold your hedge cutter in such a way that you do not breath in the exaust fumes.
Operate the hedge cutter under good visibility and daylight conditions only.
!Warning!
Make sure you always have good footing. Take particular care in slippery conditions and on slopes. Be careful on un-even ground. Watch out for stumps, roots, ditches or holes which could cause you to trip or stumble.
8 |
HL 75, HL 75 K |
English / USA
Before you start work, examine the hedge area for stones, fence wire, metal or other solid objects which could damage the cutter blades.
When working close the ground, make sure that no sand, grit or stones get between the cutter blades.
!Warning!
When cutting the top of a taller hedge, when visibility is obstructed check backside of the hedge frequently for bystanders, animals and obstructions.
Danger!
The hedge cutter is not insulated against electric shock. To reduce the risk of electrocution, never
operate the hedge cutter in the vicinity of any wires or cables (power, etc.) which may be carrying electric current.
Operating instructions
Do not cut any material other than hedges and shrubs. The cutting tools may be used only for the operations described in your manual.
389BA024 KN
!Warning!
To reduce the risk of injury from loss of control, always hold your hedge cutter firmly with both hands while you are working. Your right hand should grip the rear handle. This also applies to lefthanders. Wrap your fingers tightly around the front and rear handles.
!Warning!
Never attempt to operate any hedge cutter with one hand. Loss of control of
the hedge cutter can result in serious or fatal injury. To avoid the risk of
serious injury, never teach the moving cutter blades.
Always work calmly and carefully, stay alert so as not to endanger others. If the cutter blades become jammed by thick branches or any other obstruction, switch off the engine immediately before attempting to free the blades.
!Warning!
On units with an adjustable cutter bar: Always shut off the engine before making any adjustments. To reduce the risk of injury, never touch the blades while making adjustments (fit the scabbard over the blades).
!Warning!
The gearbox becomes hot in operation. To reduce the risk of burn injury, do not touch the gearbox housing.
!Warning!
To reduce the risk of injury from loss of control, never work on a ladder, in a tree or any other insecure support.
!Warning!
The cutter blades tend to run on for a short period after the throttle trigger is released (flywheel effect).
HL 75, HL 75 K |
9 |
English / USA
Important adjustments
!Warning!
To reduce the risk of personal injury from loss of control or contact with the running cutting blades, do not use a hedge cutter with incorrect idle adjustment. At correct idle speed, the cutting blades should not move. For directions to adjust idle speed, see the appropriate section of your owner's manual. If you cannot set the correct idle speed, have your STIHL dealer check your hedge cutter and make proper adjustments or repairs.
MAINTENANCE, REPAIR AND STORING
Maintenance, replacement, or repair of the emission control devices and systems may be performed by any nonroad engine repair establishment or individual. However if you claim warranty for a component which has not been serviced or maintained properly or if nonapproved replacement parts were used, STIHL may deny warranty.
Use only 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. Refer to the maintenance chart at the last pages of this manual.
!Warning!
Always stop the engine and make sure that the cutting tool is stopped before doing any maintenance or repair work or cleaning the hedge cutter. Do not attempt any maintenance or repair work not described in your owner's manual. Have such work performed at your STIHL service shop only.
!Warning!
Check condition of cutting tool at regular short intervals. If behavior of tool changes, check it immediately for tightness or any signs of cracks in particular. Replace damaged or dull cutting tools immediately, even if they have only superficial cracks.
Never repair damaged cutting attachments by welding, straightening or modifying the shape. This may cause parts of the cutting tool to come off and result in serious or fatal injuries.
10 |
HL 75, HL 75 K |
English / USA
!Warning!
To reduce the risk of fire, check fuel filler cap for leaks at regular intervals. Use the specified spark plug and make sure it and the ignition lead are always in good condition.
Keep spark plug and wire connection tight and clean. 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.
Keep cutting tool sharp. Tighten all nuts, bolts and screws except the carburetor adjustment screws after each use.
Always clean dust and dirt off the machine after finishing work.
Do not use a grease solvent for cleaning! In some countries an aerosol can of resin solvent (protective spray), Part No. 0782 420 1002, is available for spraying the cutter blades.
This resin solvent protects the cutter blades and has anticorrosive properties. Spray the cutter blades before and after work. Then start and run the hedge cutter briefly so that the resin solvent is evenly distributed over the blades. If the hedge itself is very dusty and dirty, spray the cutter blades more frequently. This greatly reduces blade friction and the damaging effects of sap and dust particles.
!Warning!
Do not operate your hedge cutter if the muffler is damaged, missing or modified. An improperly maintained muffler will increase the risk of fire and hearing loss. Never touch a hot muffler or burn will result. If your muffler was equipped with a spark-arresting screen to reduce the risk of fire (e.g. in the USA, Canada and Australia), never operate your hedge cutter if the screen is missing or damaged. Remember that the risk of forest fires is greater in hot or dry weather.
Keep the engine and muffler free from cuttings, chips, leaves, fibers and excess lubricant.
For any maintenance please refer to the maintenance chart and to the warranty statement near the end of this manual.
Store hedge cutter in a dry and high or locked location out of reach of children. Before storing for longer than a few days, always empty the fuel tank.
HL 75, HL 75 K |
11 |
English / USA
Assembling the Unit
1 |
1 |
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2 |
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2 |
KN |
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389BA001 |
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1 |
1 |
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Mounting the Loop Handle
Not necessary on 0° fixed angle version with handle hose on the drive tube.
:Fit the square nuts (1) in the barrier bar (2) – the holes must line up.
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2 |
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4 |
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3 |
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5 |
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6 |
KN |
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7 |
7 |
389BA002 |
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:Fit the clamp (3) in the loop handle (4) and place them both on the drive tube (5).
:Place clamp (6) in position and fit the barrier bar (2) so that the holes line up.
:Insert screws (7) and tighten them down moderately against the barrier bar.
A |
4 |
389BA042 KN |
:Align the loop handle (4) and move it to the most comfortable position.
On HL 75 K, distance A must not be more than 30 cm (12”) – about
25 cm (10”) is recommended.
On HL 75, distance A must not be more than 55 cm (22”) – about 35 cm (14”) is recommended
:Tighten down the screws (7) securely.
12 |
HL 75, HL 75 K |
English / USA
Using the Hedge Cutter
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10 |
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10 |
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11 |
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9 |
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9 |
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5 |
225BA001KN |
389BA043KN |
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Mounting the Gearbox
:Loosen the clamp screws (9).
:Push the drive tube (5) into the gearbox (10) – turn the gearbox back and forth as necessary.
:Once the end of the drive tube is inserted beyond the slot in the clamp (11), push it fully home as far as stop.
:Fit the clamp screws and tighten down moderately.
:Line up the gearbox (10).
:Tighten down the clamp screws firmly..
Do not use your hedge cutter during rest periods customary in the neigborhood.
Preparations
Use lopping shears to cut out thick branches first.
Always wear a harness..
Cutting sequence
If a radical cut is necessary, cut a little at a time in several stages.
Cutting techniques
Vertical cut:
Swing the cutter bar up and down in an arc as you move along the hedge – use both sides of the cutting blades.
Horizontal cut:
Hold the cutter bar at an angle of 0° to 10° as you swing the hedge cutter horizontally.
Swing the cutter bar in an arc towards the outside of the hedge so that the cuttings are swept on to the ground.
Do not throw cuttings in the rubbish 
bin (garbage can) – they can be composted!
HL 75, HL 75 K |
13 |
English / USA
389BA044 KN |
Horizontal cut
(with angled cutter bar)
Cutting close to the ground from a standing position, e.g. low shrubs (not with HL 75 K).
389BA049 KN |
Vertical cut
(with angled cutter bar)
Cutting without standing directly next to hedge, e.g. flowerbed between operator and hedge.
389BA050 KN |
Vertical cut
(with straight cutter bar)
Large working radius even without additional aids.
14 |
HL 75, HL 75 K |
English / USA
Fuel
389BA009 KN |
Overhead cut
(with angled cutter bar)
Hold the hedge cutter above your head and swing it in an arc to make maximum use of its reach.
Any working position above head height is tiring. To minimize the risk of accidents, work in such positions for short periods only. Set angle of adjustable cutter bar to maximum so that the unit can be held in a lower, less tiring position (with harness) while still providing adequate vertical reach.
389BA047 KN |
Horizontal cut
(with straight cutter bar)
Cutting without standing directly in front of the hedge, e.g. reaching over a flowerbed.
This engine is certified to operate on unleaded gasoline and with the mix ratio 50:1.
Your two-stroke engine requires a mixture of brand-name gasoline and quality two-stroke engine oil with the classification TC.
Use regular branded unleaded gasoline with a minimum octane rating of 89 RON. If the octane rating of the regular grade gasoline in your area is lower use premium unleaded fuel.
Note: Units with a catalytic converter require unleaded gasoline. The efficiency of the catalytic converter can drop more than 50 % if several tankfuls of leaded gasoline are used.
Fuel with a lower octane rating may result in preignition (causing "pinging") which is accompanied by an increase in engine temperature. This, in turn, increases the risk of the piston seizure and damage to the engine.
The chemical composition of the fuel is also important. Some fuel additives not only detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines etc.), but magnesium castings as well. This could cause running problems or even damage the engine. For this reason it is essential that you use only name branded fuels!
HL 75, HL 75 K |
15 |
English / USA
Use only STIHL two-stroke engine oil or equivalent branded two-stroke aircooled engine oils with the classification TC for mixing.
We recommend STIHL 50:1 two-stroke engine oil since it is specially formulated for use in STlHL engines.
Do not use BIA or TCW (two-stroke water cooled) mix oils.
Use only STIHL 50:1 heavy-duty engine oil or equivalent quality two stroke engine oils for the fuel mix in models with a catalytic converter.
Take care when handling gasoline. Avoid direct contact with the skin and avoid inhaling fuel vapour.
The canister should be kept tightly closed in order to avoid any moisture getting into the mixture.
The fuel tank and the canister in which fuel mix is stored should be cleaned from time to time.
Fuel mix ages
Only mix sufficient fuel for a few days work, not to exceed 3 months of storage. Store in approved safety fuel-canisters only. When mixing, pour oil into the canister first, and then add gasoline.
Fueling
Gaso- |
Oil (STIHL 50:1 or |
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line |
equivalent branded TC oils) |
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US gal. |
US fl.oz |
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1 |
2.6 |
2 1/2 |
6.4 |
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5 |
12.8 |
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Dispose empty mixing-oil canisters only at authorized disposal locations.
389BA031 KN
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.
In order 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.
After fueling, tighten fuel cap as securely as possible by hand.
16 |
HL 75, HL 75 K |
English / USA
Adjusting Cutter Bar Angle
(adjustable version only)
389BA032 KN |
Change the fuel pick up body every year.
Before storing your machine for a long period, drain and clean the fuel tank and run engine until carburetor is dry.
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2 |
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3 |
1 |
KN |
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388BA012 |
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The angle of the cutter bar can be adjusted to 8 positions between 0° (straight) and 90° (right angle).
This choice of angles helps enhance the versatility of the unit.
To adjust cutter blade angle
:Shut off the engine.
:Pull back the sliding sleeve (1) and use lever (2) to adjust joint by one or several holes.
:Release the sliding sleeve and allow pin to engage the quadrant
(3).
Sliding sleeve butts against the housing when the pin is properly engaged (after making adjustment).
HL 75, HL 75 K |
17 |
English / USA |
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Fitting the Harness |
Starting / Stopping |
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the Engine |
1 |
3 |
389BA040 KN |
Shoulder strap
:Put on the shoulder strap (1).
:Adjust length until the spring hook
(3) rests against your right hip.
2 |
3 |
389BA041 KN |
Full harness*
:Put on the full harness (2).
:Adjust length until the spring hook
(3) rests against your right hip.
*see chapter
“Symbols Used in this Manual“
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STOP |
START |
2 |
3 |
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1 |
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225BA003 KN
Starting
:Hold down the trigger interlock (1) and squeeze the throttle trigger (2).
:Move the slide control (3) to the START position.
:Now release the throttle trigger, slide control and trigger interlock in that order. This is the starting throttle position.
18 |
HL 75, HL 75 K |
English / USA
|
5 |
355BA008 |
392BA002 KN |
:Set the choke lever (4):
For cold start to g For warm start to e
(also use this setting if the engine has been running but is still cold)
:Press the fuel pump bulb (5) at least five times even if bulb is already filled with fuel.
389BA013 KN |
:Place the unit on the ground: It must rest securely on the engine support and the gearbox.
:Remove the blade scabbard.
:Check that the cutting tool is not touching the ground or any other obstacles. lf necessary, rest the gearbox on a raised support (e.g. mound, brick or something similar).
:Make sure you have a firm footing.
:Hold the unit with your left hand and press it down firmly – your thumb should be under the fan housing.
Do not stand or kneel on the drive tube since it will otherwise be permanently bent and damaged.
HL 75, HL 75 K |
19 |
English / USA
:Pull the starter grip slowly with your right hand until you feel it engage and then give it a brisk strong pull. Do not pull out the starter rope all the way – it might otherwise break.
:Do not let the starter grip snap back. Guide it slowly back into the housing so that the starter rope can rewind properly.
2
STOP
3 
START
225BA005 KN
STOP
3 
START
225BA006 KN
When engine begins to fire:
:Move the choke lever to e and continue cranking.
As soon as engine runs:
:Blip the throttle trigger (2) – the slide control (3) moves to the run position
# – and the engine settles down to idle speed.
Make sure the carburetor is correctly adjusted – cutting blades must not run when the engine is idling.
Your hedge cutter is now ready for operation.
To shut down the engine:
:Move the slide control (3) to $ (STOP).
At very low outside temperatures
As soon as the engine runs:
:Blip the throttle trigger to disengage the starting throttle position –
the slide control moves to the run position # and the engine settles down to idle speed.
:Open the throttle slightly and allow engine to warm up for a brief period.
20 |
HL 75, HL 75 K |
English / USA
Cleaning the Air Filter
6 |
392BA005 KN |
If the engine does not start
If you did not move the choke lever to e quickly enough after the engine began to fire, the combustion chamber is flooded.
:Move slide control to $ (STOP).
:Pull off the spark plug boot (6).
:Unscrew and dry off the spark plug.
:Squeeze throttle trigger all the way to open the throttle wide.
:Crank the engine several times with the starter to clear the combustion chamber.
5 |
392BA002 KN |
:Refit the spark plug.
:Connect the spark plug boot (press it down firmly).
:Move slide control to START.
:Set choke lever to e, even if engine is cold.
:Now start the engine.
Fuel tank run until dry
:After refueling, press the fuel pump bulb (5) at least five times – even if bulb is filled with fuel.
:Now start the engine.
|
2 |
|
1 |
KN |
|
355BA014 |
||
|
Dirty air filters reduce engine power increase fuel consumption and make starting more difficult.
If there is a noticeable loss of engine power
:Move choke lever to g.
:Press in the tab (1).
:Ease the filter cover (2) over the tab and take it away.
:Clean away loose dirt from around the filter.
:Remove the foam and felt filter elements.
HL 75, HL 75 K |
21 |
English / USA
2 |
|
KN |
3 |
355BA031 |
|
|
||
|
|
Motor Management
Exhaust emissions are controlled by the design of the fundamental engine parameters and components (e.g. carburation, ignition, timing and valve or port timing) without the addition of any major hardware.
4 |
5 |
355BA032 KN
:Wash the foam element in a clean, non-flammable cleaning solution (e.g. warm soapy water) and then dry.
:Fit new felt element.
As a temporary measure you can knock it out on the palm of your hand or blow it out with compressed air. Do not wash.
Replace damaged parts!
:Install the foam element (3) in the filter cover (2).
:Place felt element (4) (lettering facing inward) in filter housing (5).
:Fit filter cover so that it snaps into position.
Adjusting the Carburetor
General Information
The carburetor comes from the factory with a standard setting.
This setting provides an optimum fuel-air mixture under most operating conditions.
With this carburetor it is only possible to adjust the high speed screw within fine limits.
22 |
HL 75, HL 75 K |
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