Waterous Arizona Operations
500-100 & 120-P Operations
Rev 1
Page 23 of 30
Observed
Symptom
Probable
Cause
Suggested Remedy
Relief Valve
Malfunction
A. Pressure not
relieved when
discharge valves are
closed
Sticky pilot valve
Disassemble and clean. Replace noticeably worn parts.
Plugged tube lines
Disconnect lines and Inspect.
Relief Valve
Malfunction
B. Pressure will not
return to original
setting after
discharge valves are
reopened
Sticky pilot valve
Disassemble and clean. Replace noticeably worn parts.
Sticky main valve
Disassemble and clean. Replace noticeably worn parts.
Incorrect installation
Check all lines to be sure installation instructions have been followed.
Relief Valve
Malfunction
C. Fluctuating pressure
Sticky pilot valve
Disassemble and clean. Replace noticeably worn parts.
Water surges
(relief valve)
Pressure fluctuation can result from a combination of intake and discharge
conditions Involving the pump, relief valve and engine.
When the elasticity of the intake and discharge system and the response
rate (reaction time) of the engine, pilot valve and relief valve are such
that the system never stabilizes, fluctuation results.
With the proper combination of circumstances, fluctuation can occur
regardless of the make or type of equipment involved.
Changing one or more of these factors enough to disrupt this timing should
eliminate fluctuation.
Relief Valve
Malfunction
D. Slow response
Plugged filter or line
Clean lines and filter.
Содержание 500-100-P
Страница 24: ...Waterous Arizona Operations 500 100 120 P Operations Rev 1 Page 24 of 30 Figure 6 Basic CAFS Schematic...
Страница 25: ...Waterous Arizona Operations 500 100 120 P Operations Rev 1 Page 25 of 30 Figure 7 500 100 P Dimensions...
Страница 26: ...Waterous Arizona Operations 500 100 120 P Operations Rev 1 Page 26 of 30 Figure 8 Hydraulic Schematic...
Страница 28: ...Waterous Arizona Operations 500 100 120 P Operations Rev 1 Page 28 of 30 Figure 10 Electric Schematic Auto sync...
