48 Plug-in couplings for steering hydraulic system · Important notes

48 Plug-in couplings for steering hydraulic system Important notes Theprincipleof the plug~ncouplingsfor the pressureand returnlinesis the same.It is the diametersof the plug~ncouplingand of the pipelinesthat differ (returnline = largediameter/ pressureline = small diameter). Plug-incouplings are components that permit simple, fast and precise connection of pipelines. These precision components must be handled carefully during repairs. Excess force during as- sembly work, damage to the sealing surface and soiling can cause leakage. Perform preparations carefullywhen handlingplug-incouplings-e.g. cleaning and fitting the plugs -as re- pairs are possible only by replacing the affected line in most cases. Onlythe threaded part A (with fitted O-rings)and the holder C are availableas individualparts for the plug-incoupling (see Page 48 -14). Tools 667-96 No. Designation Special tool Explanation Testing tool for 9623 Used to check whether the plug-in plug~n couplings couplings are seated properly. Suitablefor pressure and return lines (nominaldiameter 6 and nominal diameter 10)