Maintenance Schedule - Husqvarna 426LST Operator's Manual

Maintenance schedule

The following is a list of the maintenance that must be performed on the machine. Most of the items are described in the
Maintenance section.
Maintenance
Clean the outside of the machine.
Make sure the throttle trigger lock and the throttle function
correctly from a safety point of view.
Check that the stop switch works correctly.
Check that the cutting attachment does not rotate at idle.
Clean the air filter. Replace if necessary.
Check that the guard is undamaged and not cracked. Replace
the guard if it has been exposed to impact or is cracked.
Check that the trimmer head is undamaged and not cracked.
Replace the trimmer head if necessary.
Check that nuts and screws are tight.
Check that there are no fuel leaks from the engine, tank or fuel
lines.
Check the starter and starter cord.
Check that the vibration damping elements are not damaged.
Clean the outside of the spark plug. Remove it and check the
electrode gap. Adjust the gap to 0.5 mm (.020"), or replace the
spark plug. Check that the spark plug is fitted with a suppressor.
Clean the machine's cooling system.
Clean or replace the spark arrestor screen on the muffler (only
applies to mufflers without a catalytic converter).
Clean the outside of the carburettor and the space around it.
Check that the bevel gear is filled three-quarters full with
lubricant. Fill if necessary using special grease.
Check the fuel filter from contamination and the fuel hose from
cracks or other defects. Replace if necessary.
Check all cables and connections.
Check the clutch, clutch springs and the clutch drum for wear.
Replace if necessary by an autorized service workshop.
Replace the spark plug. Check that the spark plug is fitted with a
suppressor.
Check and clean the spark arrestor screen on the muffler (only
applies to mufflers fitted with a catalytic converter).
20 – English
MAINTENANCE
Daily
maintenance
Weekly
maintenance
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
1155667-49 Rev. 2 2015-02-05
Monthly
maintenance
X
X
X
X
X