Husqvarna PT-26D Operator's Manual page 122

Lubrication
8. Replacing the engine's oil filter
WARNING:
Risk of spray and burn injuries. The engine's oil
filter may be very hot immediately after stopping.
Allow the engine to cool somewhat first.
IMPORTANT INFORMATION:
Replaced filters must be handed in to the workshop
or other allotted place for disposal.
Avoid skin contact; wash with soap and water in case
of spills.
1. Remove the oil filter. If necessary, use a filter
remover.
2. Clean the oil filter's mounting.
120
Engine oil filter
8009-801