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6. Pull the starter rope sharply with your

right hand until the engine starts.

7. Allow the engine to run for approximately

30 seconds. Then, squeeze and release

throttle trigger to allow engine to return to

idle speed.

STARTING A WARM ENGINE

1. Move ON/STOP switch to the ON posi-

tion.

2. Pull the choke/fast idle lever out to the

HALF CHOKE position.

3. Slowly press the primer bulb 6 times.

4. Pull the starter rope sharply with your

right hand until the engine starts.

5. Squeeze and release throttle trigger to

allow engine to return to idle speed.

DIFFICULT STARTING (or starting a

flooded engine)

The engine may be flooded with too much

fuel if it has not started after 10 pulls.

Flooded engines can be cleared of excess

fuel by pushing the choke/fast idle lever in

completely (to the OFF CHOKE position)

and then following the warm engine starting

procedure listed above. Ensure the ON/

STOP switch is in the ON position.

Starting could require pulling the starter rope

handle many times depending on how badly

the unit is flooded. If engine fails to start, re-

fer to the TROUBLESHOOTING TABLE.

CHAIN BRAKE

WARNING

:

If the brake band is worn

too thin it may break when the chain brake is

triggered. With a broken brake band, the

chain brake will not stop the chain. The chain

brake should be replaced by an authorized

service dealer if any part is worn to less than

0,02

(0,5 mm) thick. Repairs on a chain

brake should be made by an authorized ser-

vice dealer. Take your unit to the place of pur-

chase if purchased from a servicing dealer,

or to the nearest authorized master service

dealer.

S

This saw is equipped with a chain brake.

The brake is designed to stop the chain if

kickback occurs.

S

The inertia activated chain brake is acti-

vated if the front hand guard is pushed for-

ward, either manually or by centrifugal

force.

S

If the brake is already activated, it is disen-

gaged by pulling the front hand guard back

toward the front handle as far as possible.

S

When cutting with the saw, the chain brake

must be disengaged.

Disengaged

Engaged

Braking function control

CAUTION:

The chain brake must be

checked several times daily. The engine

must be running when performing this proce-

dure. This is the only instance when the saw

should be placed on the ground with the en-

gine running.

Place the saw on firm ground. Grip the rear

handle with your right hand and the front han-

dle with your left hand. Apply full throttle by

fully depressing the throttle trigger. Activate

the chain brake by turning your left wrist

against the hand guard without releasing

your grip around the front handle. The chain

should stop immediately.

Inertia activating function control

WARNING

:

When performing the fol-

lowing procedure, the engine must be turned

off.

Grip the rear handle with your right hand and

the front handle with your left hand. Hold the

chain saw approximately 14” (35 cm) above

a stump or other wooden surface. Release

your grip on the front handle and use the

weight of the saw to let the top of the guide

bar fall forward and contact the stump.

When the tip of the bar hits the stump, the

brake should activate.

CUTTING METHODS

IMPORTANT POINTS

S

Check chain tension before first use and af-

ter 1 minute of operation. See CHAIN TEN-

SION in the ASSEMBLY section.

S

Cut wood only. Do not cut metal, plastics,

masonry, non-wood building materials, etc.

S

Stop the saw if the chain strikes a foreign

object. Inspect the saw and repair parts as

necessary.

S

Keep the chain out of dirt and sand. Even a

small amount of dirt will quickly dull a chain

and increase the possibility of kickback.

S

Practice cutting a few small logs using the

following techniques to get the “feel” of us-

ing your saw before you begin a major

sawing operation.

S

Squeeze the throttle trigger and allow the

engine to reach full speed before cutting.

S

Begin cutting with the saw frame

against the log.

S

Keep the engine at full speed the entire

time you are cutting.

S

Allow the chain to cut for you. Exert only

light downward pressure.

S

Release the throttle trigger as soon as

the cut is completed, allowing the en-

gine to idle. If you run the saw at full

throttle without a cutting load, unneces-

sary wear can occur.

S

To avoid losing control when cut is com-

plete, do not put pressure on saw at end

of cut.

S

Stop the engine before setting the saw down.

Summary of Contents for Formula 400 CHROME

Page 1: ...MANUAL IMPORTANT INFORMATION Please read these instructions carefully and make sure you understand them before using this unit Retain these instructions for future reference Formula 400 CHROME 545123725 Rev 2 1 31 07 BRW ...

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Page 33: ...adrera Lecco ITALY I 23868 16 16 0 375 7T 7T 0 375 Oregon 91VJ Oregon 91VG 85 30 0 91VJ 0 375 0 050 1 3 5 32 4 0 0 025 0 65 0 025 0 65 0 30 85 5 32 4 0 0 050 1 3 0 375 91VG ISO 11681 1 2004 EN ISO 12100 1 2003 EN ISO 12100 2 2003 CISPR 12 22867 ISO 22868 16 41 56 16 41 56 ...

Page 34: ...f Travel Adjusting Screw Chain Catcher Bar Sprocket Hole IDENTIFICATION OF SYMBOLS WARNING This chain saw can be dangerous Care less or improper use cancause serious or even fatal injury Read and understand the instruction manual before using the chain saw Always use two hands when operating the chain saw WARNING Contacting the guide bar tip with any object should be avoided tip contact may cause ...

Page 35: ...hard hat and sound barriers ear plugs or mufflers to protect your hearing Regular users should have hearing checked regular ly as chain saw noise can damage hearing Secure hair above shoulder length S Keep all parts of your body away from the chain when the engine is running S Keep children bystanders and animals a minimum of 10 Meters away from the work area Donot allow other peopleor animals to ...

Page 36: ... injury Kickback is the backward upwardor sudden forwardmotion of the guide bar occurring when the saw chain near the upper tip of theguide bar con tacts any object such as a log or branch or when the wood closes in and pinches the saw chain in thecut Contactinga foreignob ject in the wood can also result in loss of chain saw control S Rotational Kickback can occur when the moving chain contacts a...

Page 37: ...in a direct line with the cutting chain S Do not overreach You could be drawn or thrown off balance and lose control of the saw S Do not cut above shoulder height It is diffi cult to maintain control of saw above shoulder height KICKBACK SAFETY FEATURES WARNING The following features are includedonyoursaw tohelpreduce thehazard of kickback however such features will not to tally eliminate this dan...

Page 38: ... color or texture or loss of feeling in the fingers hands or joints discontinue the use of this tool and seek medical attention An anti vibrationsystem does not guaranteethe avoidance of these problems Users who operate power tools on a continual and regular basis must monitor closely their physical condition and the condition of this tool ASSEMBLY Protective gloves not provided should be worn dur...

Page 39: ...e chain brake nuts are tight can cause damage Checking the tension Use the screwdriver end of the chain adjust ment tool bar tool to move the chain around the bar If the chain does not rotate it is too tight Iftoo loose thechain willsag below the bar Chain Brake Nuts Chain Adjustment Tool Bar Tool Adjusting the tension Chain tension is very important Chain stretches during use This is especially t...

Page 40: ...cts in the fueltank orpermanent damagemay occur CHAIN BRAKE Ensure chain brake is disengaged by pulling the front hand guard back towardthe fronthan dle as far as possible The chain brake must be disengaged before cutting with the saw WARNING The chain must not move when the engine runs at idle speed If the chain moves at idle speed refer to CAR BURETOR ADJUSTMENT within this manual Avoid contact ...

Page 41: ...king function control CAUTION The chain brake must be checked several times daily The engine must berunning whenperforming this proce dure This is the only instance when the saw should be placed on the ground with the en gine running Place the saw on firm ground Grip the rear handlewithyour righthand andthe fronthan dle with your left hand Apply full throttle by fully depressing the throttle trigg...

Page 42: ...y cut ting the bottom of the notch See illustra tion Once the notch is cut remove the notch of wood from the tree Notch First cut Second cut Final cut here 5 cm above center of notch 5 cm 5 cm S After removing the wood from the notch make the felling cut on the opposite side of thenotch This is doneby makinga cutabout two inches higher than the center of the notch This will leave enough uncut wood...

Page 43: ... BUCKING WITHOUT A SUPPORT S Overcut through 1 3 of the diameter of the log S Roll the log over and finish with a second overcut S Give special attention to logs under strain to prevent the saw from pinching Make the first cut on the pressure side to relieve the stress on the log BUCKING USING A LOG OR SUP PORT STAND S Remember your first cut is always on the pressure side of the log S Your first ...

Page 44: ...se For loose caps Before each use For loose fasteners Before each use For loose parts Before each use Inspect and Clean Bar Before each use Complete saw After each use Air filter Every 5 hours Chain brake Every 5 hours Spark arresting screen and muffler Every 25 hours Replace spark plug Yearly Replace fuel filter Yearly Hours of Operation AIR FILTER CAUTION Do not clean filter in gaso line or othe...

Page 45: ...ves at idle See IDLE SPEED T adjusting procedure S Saw will not idle See IDLE SPEED T ad justing procedure Idle Speed T Allow engine to idle If the chain moves idle is toofast Ifthe enginestalls idleis tooslow Adjust speed until engine runs without chain movement idle too fast or stalling idle too slow The idle speed screw is located in the area above the primer bulb and is labeled T S Turn idle s...

Page 46: ...ontact an authorized service dealer 1 Air filter dirty 2 Spark plug fouled 3 Chain brake engaged 4 Carburetor requires adjustment Engine will not accelerate lacks power or dies under a load 1 Clean or replace air filter 2 Clean or replace plug and regap 3 Disengage chain brake 4 Contact an authorized service dealer Engine smokes excessively 1 Too much oil mixed with gasoline 1 Empty fuel tank and ...

Page 47: ...t international standards dB A 106 Vibration levels see note 2 Front handle m s2 5 5 Rear handle m s2 8 5 Chain bar Standard bar length in cm 16 41 Recommended bar lengths in cm 16 41 Usable cutting length in cm 15 5 40 Chain speed at maximum power m sec 19 Pitch inches 0 375 Thickness of drive link mm 1 27 No of teeth on drive sprocket 6 Note 1 Equivalent noise level is according to ISO 22868 cal...

Page 48: ...Husqvarna Outdoor Products Italia S p A Via Como 72 Valmadrera Lecco ITALY I 23868 ...

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