RedMax PSZ2450S manual Maintenance, TIGHTENING TORQUE 87-121 in-lbs 9.8-13.7 N.m MUFFLER

PSZ2450S

9. Maintenance

TIGHTENING TORQUE:

87–121 (in-lbs) (9.8–13.7 N.m.)

■MUFFLER

WARNING

•Inspect periodically, the muffler for loose fasteners, any damage or corrosion. If any sign of exhaust leakage is found, stop using the machine and have it repaired immediately.

•Note that failing to do so may result in the engine catching on fire.

check the area around the muffler and remove any wood chips or leaves which have attached themselves to the brushcutter. Failing to do so could cause the muffler to become overheated, and that this in turn could cause the engine to catch on fire. Always make sure that the muffler is clean and free of wood chips, leaves, and other waste before use.

• Check the intake air cooling vent and

the area around the cylinder cooling

fins after every 25 hours of use for

blockage, and remove any waste which

has attached itself to the brushcutter.

Note that it is necessary to remove the

MA12

(1)

■SPARK ARRESTER (MA12)

•The muffler is equipped with a spark arrester to prevent red hot carbon from flying out of the exhaust outlet. Periodically inspect and clean as necessary with a wire brush.

In the State of California it is required by law (Section 4442 of the California Public Resources Code) to equip a spark arrester when a gas powered tool is used in any forest covered, brush covered, or grass covered unimproved land.

MA14 (1)

(2)

engine cover shown in (MA14) in order

to be able to view the upper part of the

cylinder.

IMPORTANT

•If waste gets stuck and causes blockage around the intake air cooling vent or between the cylinder fins, it may cause the engine to overheat, and that in turn may cause mechanical failure on the part of the brushcutter. (MA14)

(1) Spark arrester

■GEAR CASE (MA13)

The reduction gears are lubricated by

MA13multipurpose, lithium-based grease in the gearcase.

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

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

(1) Grease fitting

■INTAKE AIR COOLING VENT

MA15

(1)cylinder

(2)intake air cooling vent (back)

■PROCEDURES TO BE PERFORMED AFTER EVERY 100 HOURS OF USE

1.Remove the muffler, insert a screwdriver into the vent, and wipe away any carbon buildup. Wipe away any carbon buildup on the muffler exhaust vent and cylinder exhaust port at the same time.

2.Tighten all screws, bolts, and fittings.

3.Check to see if any oil or grease has worked its way in between the clutch lining and drum, and if it has wipe it away using oil-free, lead-free gasoline.

WARNING

•Never touch the cylinder, muffler, or spark plugs with your bare hands immediately after stopping the engine. The engine can become very hot when in operation, and doing so could result in severe burns.

•When checking the machine to make sure that it is okay before using it,

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