trouble shooting Flashcards
1
Q
Continuous discharge from relief during NO Flow (stops with water flow)
A
1)Debris in check #1
2)Outlet pressure higher than inlet and debris in check 2
3) Disc stem not moving free
4)damaged seat for disc
5)Dirt in seat
2
Q
Intermittent discharge during NO FLOW
A
Pressure variations
Water hammer
3
Q
Continuous discharge during FLOW and NO FLOW
A
seat disc dislodged from cavity in mainstem
debris fouling relief
dirt jamming mainstem or spring button
leakage at mainstem O ring
Jammed mainstem
4
Q
Relief does not open above 2 PSID during test
A
outlet valve not closed
plugged low pressure hydraulic passage
impropper alignment of parts
jammed mainstem
5
Q
backflow makes noises
A
trapped debris
loose or warn parts
air
extremely low or high flow conditions
6
Q
A
7
Q
A
