Translations:KAVAN Pilatus PC-6 Porter - Instruction manual/34/en

From KAVAN RC Wiki

At the end of your water flying session, carefully and thoroughly clean and dry your model from outside and inside. It is wise to carry a bottle of fresh water, a sponge and a piece of fine dry cloth with you to the lake. The exposed metal fittings might be happier if protected by a drop of WD-40 spray lube.