Husqvarna PT-26D Operator's Manual page 136

Storage
WARNING:
Never store an engine with fuel in the tank in poorly
ventilated spaces where fuel vapour can come in
contact with open flames, sparks, or a pilot light such
as in a boiler, hot water tank, clothes drier, etc.
Handle the fuel with care. Careless use can cause
serious personal injury and property damage. Never
use petrol for cleaning. Use a degreasing agent and
warm water instead.
To ready the machine for storage, follow these steps:
1. Thoroughly clean the machine, especially under
the mower deck. Touch up damage to the paint to
prevent rust.
2. Inspect the machine for worn or damaged parts
and tighten any nuts or screws that may have
become loose.
3. Change the engine oil; dispose of properly.
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