Redmax GZ4000 Manuel d'utilisateur télécharger pdf (Page 17)

US-17

GZ4000

U

S

11. Maintenance of Saw Chain and Guide Bar

F40

F39

■ SAW CHAIN

It is very important for smooth and

safe operation to keep the cutters

always sharp.

Your cutters need to be sharpened

when:

• Sawdust becomes powder-like.

• You need extra force to saw in.

• The cut way does not go straight.

• Vibration increases.

• Fuel consumption increases.

Cutter setting standards:

Be sure to wear safety gloves.

Before filing:

• Make sure the saw chain is held

securely.

• Make sure the engine is stopped.

• Use a round file of proper size for your

chain.

Chain type: 91VG

File size: 5/32 in (4.0 mm)

Place your file on the cutter and push

straight forward. Keep the file position as

illustrated. (F37)

After every cutter has been set, check the

depth gauge and file it to the proper level

as illustrated. (F38)

Be sure to round off the front edge to

reduce the chance of kickback or tie-

strap breakage.

(1) Appropriate gauge checker

(2) Make the shoulder round

(3) Depth gauge standard

WARNING

WARNING

WARNING

Make sure every cutter has the same

length and edge angles as illustrated.

(F39)

(1) Cutter length

(2) Filing angle

(3) Side plate angle

(4) Top plate cutting angle

■ GUIDE BAR

• Reverse the bar occasionally to prevent

partial wear.

• The bar rail should always be a square.

Check for wear of the bar rail. Apply a

ruler to the bar and the outside of a

cutter. If a gap is observed between

them, the rail is normal. Otherwise, the

bar rail is worn. Such a bar needs to be

corrected or replaced. (F40)

(1) Ruler

(2) Gap

(3) No gap

(4) Chain tilts

F37

F38

This saw is equipped with one of the following low

kickback bar/chain combinations:

Model GZ4000

14" Bar : Oregon 140SPEA041

14" Chain : Oregon Doubleguard 91VG052X

WARNING

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