VW1302 brake system out of order

Brake shoe sticking phenomena on frontal right leading construction happened this morning on air-cooled VW1302 Super Beetle after a panic stopping full braking phase. The sticking point was at the operating cylinder shoe guiding plunger on leading side, sludge in the sliding surface was the criminal, lubrication there solved the problem thoroughly and the lower shoe support groove was flattened with a hand file on both sides. The necessity of periodical checking on the moving portions was reconfirmed.
Though I intended to go for a photo shooting today, almost of my free time was occupied by the work on VW Beetle brake maintenance, but I have no regret because it is too hot outside like a Summer season not a suitable day for the initial purpose.