Product Manual A

31609 A MTP4000-6000DZV/DZD Operating Manual 39

Section 3 - Operation

PUMP SET UP

1. Disconnect the pump from the tow vehicle by

turning the tongue jack clockwise to raise the

tongue from the hitch. Disconnect all safety chains,

surge brake cables and the trailer wiring harness.

Block the wheels to prevent the unit from rolling.

2. Lower the rear leveling jacks from the travel posi-

tion. Turn the jack handles clockwise until the

leveling feet are in firm contact with the ground.

Adjust the jacks until the pump is as level as pos-

sible.

3. Attach fittings to both the intake and outlet open-

ings of the pump, making sure they match the fit-

tings on the hoses. Make sure a gasket/seal is in

place between the pump volute and the flange on

the fitting being attached. Tighten all hardware

completely to ensure an airtight seal. Threaded

fittings require the use of pipe thread sealant.

Figure 13 - Pump Seals

4. Attach a rigid hose to the intake (suction) side of the pump. For best performance, the suction hose/piping

should be at least as large as the pump flange, never smaller. The pump should be at the highest point of

the hose/piping. All suction piping and fittings should be checked for any foreign material (rocks, bolts, wire,

etc.) and also any sharp burrs that could disrupt the flow. Make sure the O-ring seal is present in the fitting

on the pump before attaching the fitting.

Note: Lubricate the O-ring seal with grease to ensure an airtight seal.

CAUTION

The suction and discharge pipe/hose material should be compatible with the liquid being

pumped. If a hose is used on the suction line, it should be of the reinforced type to prevent

collapse under suction lift.

DANGER

IF A MANUAL SHUTOFF VALVE IS INSTALLED IN THE DISCHARGE LINE, IT MUST

NOT BE LEFT CLOSED DURING OPERATION. A CLOSED MANUAL SHUTOFF VALVE

WILL CAUSE OVERHEATING AND POSSIBLE EXPLOSIVE RUPTURE OF THE PUMP

CASING. PERSONNEL COULD BE SERIOUSLY INJURED.

5. Attach a rigid intake screen or strainer to the end of the suction hose before placing it in the liquid. This will

prevent large items or excessive trash from entering the pump housing. The screen must have enough

SEAL

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