Hale 2CBP - Manual (Page 31)

Troubleshooting
Sec IV- 3
5. The suction side relief valve
can leak. Plug the valve outlet
connection and retest.
INSUFFICIENT PUMP
CAPACITY
Insufficient engine power
Engine power check or tune up
may be required for peak
engine and pump performance.
Refer to rotation symptoms
later in this section.
CONDITION POSSIBLE CAUSE SUGGESTED CORRECTION
PUMP LOSES PRIME OR
WILL NOT PRIME (Cont'd.) 3. After priming, shut off the
engine. Audible detection of a
leak is often possible.
4. Connect the suction hose
from the hydrant or the
discharge of another pumper to
pressurize the pump with
water, and look for visible
leakage and correct. A
pressure of 100 PSI (6.9 BAR)
should be sufficient. Do not
exceed pressure limitations of
pump, accessories, or piping
connections.
Air Leaks (cont'd.)
Suction hose diameter is too
small for the volume being
discharged
Use a larger suction hose.
Shorten total length by
removal of one length.
Reduce volume of
discharge
Restriction in the suction
line at the strainer Remove any debris
restricting entrance of
water at the strainer.
Partial collapse of the lining
in the suction hose Damage to the outer lining may
allow air in between the outer
and inner linings causing a
partial collapse. Replace the
hose and retest.