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4.2 Assembly the piston cylinder unit
Marking line for floating position (±10mm)
As above picture, loose the bottom safety screw of piston cylinder unit.
Check if the O-ring located in the center position of cylinder base the deadweight tester.
Screw the whole piston cylinder unit in cylinder base of the deadweight tester. If necessary, uses wrench to tight
it till mechanical stop.
Do not open the piston and cylinder unit by unprofessional people.
In generally, the factory installed the piston and cylinder unit on the base before delivery.