9. Maintenance

SPROCKET

Check for extensive wear, and replace it when the teeth are worn over 0.3 mm.

0.3 mm

(1) Sprocket

SAW CHAIN

WARNING

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:

WARNING

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

: 90SG

File size

: 5/32 in (4.0 mm)

Place your file on the cutter and push straightforward. Keep the file position as illustrated.

PSZ2610

After every cutter has been set, check the depth gauge and file it to the proper level as illustrated. (MA7)

G

B

0.25" (0.65 mm)

(1)Appropriate gauge checker

(2)Make the shoulder round

(3)Depth gauge standard

WARNING

Be sure to round off the front edge to reduce the chance of kick- back or tie-strap breakage.

Make sure every cutter has the same length and edge angles as illustrated.

(4)

Cutter length

(5) Filing angle

(6)

Side plate angle

(7) Top plate cutting angle

TRANSMISSION

The reduction gears are lubricated by multipurpose, lithium- based grease in the transmission.

Supply new grease every 25 hours of use or more often de- pending on the job condition.

When adding lubricant, use a grease gun to insert lubricant into the three grease nipples located on the transmission.

(1) Grease fitting

GB-15

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Zenoah PSZ2610 owner manual 25 0.65 mm, GB-15, Sprocket, SAW Chain, Transmission