Flexible Pipes and Hoses
When removing and installing flexible hydraulic pipes and hoses, make sure that the following practices are observed to ensure component serviceability:
Absolute cleanliness must be observed with hydraulic components at all times.
Obtain appropriate plugs or caps before detaching hose end fittings, so that the ports can be immediately covered to prevent the ingress of dirt.
Fit a cap to seal a hydraulic union and a plug to its socket after removal to prevent ingress of dirt.
After any work on hydraulic systems, carefully inspect for leaks underneath the vehicle while a second operator applies maximum brake pressure to the brakes (servo pump running).