Hale Trailer User Manual download pdf (Page 38)

❑ Operation

Operation - Skid & Trailer

p/n: 029-0810-00-0

Pumping Operations

1. Position the skid or trailer as close to the water source as practical. Pumps

smaller than 1,500 GPM (5,678 LPM) can draw 100% of rated capacity with

less than 10 feet (3.05 meters) vertical lift and 20 feet (6 meters) of suction

hose. Pumps smaller than 3,000 GPM (11,356 LPM) have six (6) feet (1.8

meter) vertical lift capability.

As the vertical lift increases, pump capacity is reduced. (See Figure F-3:

“Lift Loss from Elevation” on page 67.) Also see heading “Draft Operation

Limiting Factors” on page 40.

2. For trailers, apply the brakes, chock the wheels and lower the trailer jacking

stabilizers to level and support the trailer. See WARNING ! note on page

35.

3. Attach a suction line to the pump, installing a strainer on the opposite end.

Submerge the strainer in the water at least four (4) times the pipe diameter

below the water level. Make sure the suction line connection is tight.

Keep the strainer OFF the bottom of the water source and away from sand,

leaves or other foreign matter which could block or restrict flow.

4. Remove engine compartment side panels, if so equipped.

5. Check engine cooling system for sufficient coolant.

6. Start the engine. See engine manufacturer’s manual for start-up and opera-

tion procedures.

7. Check that all drain valves / cocks are fully CLOSED.

8. Activate the priming pump - pull the control handle, or press the pushbutton.

Your departmental manual for pumping should specify the correct RPM for

priming. However, in general, priming should be operated at IDLE.

Running the engine at speeds higher than 1,200 RPM during priming is not

recommended. It does not improve the priming operation but can cause

damage to the pump.

CAUTION !

IF THE DISCHARGE GAUGE READING DOES NOT INCREASE, THE INTAKE

GAUGE READING DOES NOT FALL BELOW ZERO (0), OR THE PRIMING PUMP

DOES NOT DISCHARGE WATER TO THE GROUND WITHIN 30 TO 45 SECONDS,

DO NOT CONTINUE TO RUN THE PRIMING PUMP.

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Hale Trailer User Manual Page 38