Maintenance - RedMax HB281 Operator's Manual

4. Move the choke control to the OFF CHOKE
(opened) position.
To stop the engine
• Push and release the engine STOP switch. The
switch automatically returns to the ON position.
Wait 7 seconds before you try to restart the
product to make sure that the switch resets.
To use a nozzle
• Use the standard nozzle when precision and high
air stream concentration is necessary.
WARNING:
the safety chapter before you clean,
repair or do maintenance on the product.
Maintenance schedule
Make sure that you obey the maintenance schedule.
The intervals are calculated from daily use of the
product. The intervals are different if you do not use
the product each day. Only do the maintenance work
that is found in this manual. Speak to an approved
service center about other maintenance work not
found in this manual.
Daily maintenance
• Clean the external surfaces.
• Examine the speed control and the throttle
trigger function. Replace damaged parts.
• Examine the stop switch. If it is necessary,
replace it.
• Examine the idle speed.
• Clean the air filter. If it is necessary, replace it.
• Make sure that the inlet cover can be locked in
closed position. Make sure that the impeller is
clean.
• Tighten all nuts and screws.
• Make sure that the housings are free of cracks.
Weekly maintenance
• Examine the condition of the starter device, the
starter rope and the tension spring. Replace all
damaged parts.
• Examine the condition of the air intake at the
starter device. Remove debris if the air intake is
clogged.
• Clean the external side of the spark plug.
Remove it and examine the electrode gap. Adjust
10

Maintenance

Read and understand
• Use the high velocity nozzle when a wider
airstream and large air velocity is necessary.
To adjust the blower nozzle
1. Twist the nozzle to the left to disengage the
bayonet mount.
2. Move the nozzle to applicable position.
3. Twist the nozzle to the right until you feel a click.
the distance to 0.6 mm (0.024 in) or replace the
spark plug.
• Clean the blades on the impeller.
• Clean the spark-arresting screen and replace
it if necessary (not on mufflers with a catalytic
converter).
• Clean the carburetor area.
• Clean the air filter.
Monthly maintenance
• Examine the starter rope handle and the starter
rope.
• Clean the fuel tank.
• Clean the carburetor and the area around it.
• Clean the blades on the impeller.
• Examine the fuel lines for cracks or other
damage. Change if necessary
• Change the fuel filter in the fuel tank.
• Examine all cables and connections.
• Replace the spark plug.
• Change the air filter.
Yearly maintenance
• Examine the spark plug.
• Clean the external surface of the carburetor and
its adjacent areas.
• Clean the cooling system.
• Examine the spark arrester screen.
• Examine the fuel filter.
• Examine the fuel hose for damage.
• Examine all cables and connections.
50 hours maintenance
• Have an approved service center repair or
replace the muffler.
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