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40

OPERATING YOUR UNIT

BEFORE STARTING ENGINE

WARNING

:

Be sure to read the fuel

information in the safety rules before you be-

gin. If you do not understand the safety rules,

do not attempt to fuel your unit. Contact an

authorized service dealer.

BAR AND CHAIN LUBRICATION

The bar and chain require continuous lubri-

cation. Lubrication is provided by the auto-

matic oiler system when the oil tank is kept

filled. Lack of oil will quickly ruin the bar and

chain. Too little oil will cause overheating

shown by smoke coming from the chain and/

or discoloration of the bar.

Only use Bar and Chain Oil for bar and chain

lubrication.

Oil Cap

Fuel mix cap

FUELING ENGINE

WARNING

:

Remove fuel cap slowly

when refueling.

This engine is certified to operate on unleaded

gasoline. Before operation, gasoline must be

mixed with a good quality 2-cycle air-cooled

engine oil designed to be mixed at a ratio of

40:1. A 40:1 ratio is obtained by mixing 0,125

liter of oil with 5 liters of unleaded gasoline. DO

NOT USE automotive or boat oil. These oils

will cause engine damage. When mixing fuel

follow the instructions printed on the container.

Always read and follow the safety rules relating

to fuel before fueling your unit.

IMPORTANT

Experience indicates that alcohol blended fuels

(called gasohol or using ethanol or methanol)

can attract moisture which leads to separation

and formation of acids during storage. Acidic

gas can damage the fuel system of an engine

while in storage. To avoid engine problems,

empty the fuel system before storage for 30

days or longer. Drain the gas tank, start the en-

gine and let it run until the fuel lines and carbu-

retor are empty. Use fresh fuel next season.

Never use engine or carburetor cleaner prod-

ucts in the fuel tank or permanent damage may

occur.

CHAIN BRAKE

Ensure chain brake is disengaged by pulling

the front hand guard back toward the front han-

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 with the muffler. A hot

muffler can cause serious burns.

To stop the engine

, move the ON/STOP

switch to the STOP position.

To start the engine

, hold the saw firmly on

the ground as illustrated below. Make sure

the chain is free to turn without contacting

any object.

Hold saw firmly while pulling starter rope.

Use only 40 --- 45 cm of rope per pull.

IMPORTANT POINTS TO REMEMBER

When pulling the starter rope, do not use the full

extent of the rope as this can cause the rope to

break. Do not let starter rope snap back. Hold

the handle and let the rope rewind slowly.

For cold weather starting, start the unit at full

choke; allow the engine to warm up before

squeezing the throttle trigger.

NOTE

:

Do not cut material with the choke/fast

idle lever at the FULL CHOKE position.

STARTING A COLD ENGINE (or a

warm engine after running out of

fuel)

NOTE

:

In the following steps, when the cho-

ke/fast idle lever is pulled out to the full ex-

tent, the correct throttle setting for starting is

set automatically.

ON/STOP SWITCH

ON

STOP

(SIDE VIEW)

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

tion.

2. Pull out choke/fast idle to the full extent

(to the FULL CHOKE position).

3. Slowly press primer bulb 6 times.

4. Pull the starter rope sharply 5 times with

your right hand. Then, proceed to the

next step.

NOTE

:

If the engine sounds as if it is trying

to start before the 5th pull, stop pulling and

immediately proceed to the next step.

5. Push the choke/fast idle lever in to the

HALF CHOKE position.

OFF HALF

CHOKE/FAST IDLE LEVER

Choke/

fast idle lever

(SIDE VIEW)

FULL

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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