When removing and installing flexible hydraulic pipes and hoses, ensure 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).

For information about assembling refrigerant pipes and hoses, refer to Workshop Manual.