Pressure Relief Valve Maintenance

pressure relief
What you must do to all fuel injection system before cracking a line and opening up the system
Stress management is the amelioration of stress and especially chronic stress often for the purpose of improving everyday functioning.
or ‘weight shifts’ are the methods of relieving pressure over the buttocks whilst sitting in the wheelchair.

maintenance
The process of keeping something in good condition
care: activity involved in maintaining something in good working order; "he wrote the manual on car care"
means of maintenance of a family or group
The process of maintaining or preserving someone or something, or the state of being maintained
The provision of financial support for a person's living expenses, or the support so provided
alimony: court-ordered support paid by one spouse to another after they are separated

valve
A membranous fold in a hollow organ or tubular structure, such as a blood vessel or the digestive tract, that maintains the flow of the contents in one direction by closing in response to any pressure from reverse flow
device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone
control consisting of a mechanical device for controlling the flow of a fluid
A device for controlling the passage of fluid through a pipe or duct, esp. an automatic device allowing movement in one direction only
A cylindrical mechanism in a brass instrument that, when depressed or turned, admits air into different sections of tubing and so extends the range of available notes
a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it