Hale CSD - Manual (Page 11)

Trouble Shooting Guide
Pump Fails to Prime or Loses Prime
1. Restriction at the Suction Strainer
a. Remove all leaves, dirt and other foreign material from the strainer.
b. Use extra caution when drafting from shallow water sources with mud, sand or gravel
bottom.
c. Keep the strainer off bottom by placing it inside a barrel with the top cut down, or use a
similar method.
2. Suction Lift too High
a. Suction lift should not be attempted over 20 feet, except at low altitudes with the
equipment in new condition.
3. Suction Strainer too Near the Surface.
a. When pumping large volumes of water, the strainer should be submerged at least two
feet below the surface.
4. High Point in Suction Line.
a. Suction hose should slope down from pump to source.
b. If a high point cannot be avoided, re-prime several times to avoid air pockets.
5. Primer Not Operated Long Enough.
a. A normal prime should be accomplished within 20 seconds at a 10-foot lift.
6. Defective Priming Line.
a. Check hose from pump to priming valve and also hose from priming valve to the electric
priming pump. Check for leaks or accumulations of foreign material.
b. If necessary, refer to the electric priming pump operation instructions supplied
elsewhere in this manual.
Pump Will Not Deliver Capacity
1. Insufficient Horsepower.
a. Check engine according to manufacturer’s instructions, supplied with truck.
b. See local truck service garage.
2. Engine RPM too Low at Full Throttle.
a. Engine operated at high altitudes, engine horsepower decreases about 3 percent per
1000 feet above sea level. Consult manufacturer’s instructions. Also due to insufficient
horsepower.
3. Pump Wear Rings excessively Worn.
a. Excessive wear will allow severe internal leakage from the pressure side of the pump
back to the suction side, reducing the net pump capacity and pressure.