Filter
Top Products
automatically reset, and the pump will start operation without
warning.
CAUTION: To prevent electrical shock, disconnect power before
initiating any work. In the case of pump failure, the motor
housing and/or the pumped fluid may carry high voltage to
components normally considered safe.
PRESSURE SWITCH OPERATION (If Equipped)
The pressure switch reacts to outlet pressure, and interrupts
power at the preset shut-off pressure indicated on the pump label.
When outlet pressure drops below a predetermined limit (*typically
15-20 psi. [1-1.4 bar] less than the shut-off pressure), the switch will
close and the pump operates until the shut-off (high) pressure is
achieved. The shut-off pressure is set to factory calibrated
standards.
CAUTION: Improper adjustment of the pressure switch setting,
may cause severe overload or premature failure. Refer to
SHURflo Service Bulletin
#
1031 for the adjustment procedure.
Failures due to improper adjustment of the pressure switch
setting will not be covered under the limited warranty.
If the plumbing is restrictive or the flow rate is very low, the pump
may re-pressurize the outlet faster than the fluid is being released,
causing rapid cycling (*ON/OFF within 2 sec.). If the pump is
subjected to rapid cycling during normal operation, or for infrequent
periods, damage may occur. Applications which exhibit rapid
cycling should have restrictions in the outlet minimized. If not
feasible consider a SHURflo Accumulator or a SHURflo "bypass"
model pump.
BYPASS OPERATION (If Equipped*)