Mp-pumps PETROLEUM SELF-PRIMING 30, 40 INSTRUCTION Manuel d'utilisateur télécharger pdf (Page 2)

It is important that this Instruction Bulletin be read carefully to fully familiarize yourself with the pump

assembly arrangement. The instructions contained herein pertain to installation and maintenance

of the PO, PG, PE 30 and 40 pump assembly only. Check unit carefully to make certain that no parts

are missing or have been broken in shipment. Your pump may been provided as a pumpak assembly or

included a driver such as a closed coupled electric explosion proof motor. Please verify which driver

is on your pump to know which sections of this document pertain to you.

PUMPAK ASSEMBLY (SIZE 30 ONLY) priming at initial start-up.

1. Loosen the drive sleeve clamp.

2. Slide the pump onto the driver by hand. After start up check for leaks anywhere on

This should not require extreme force. the pump or pluming, and tighten any bolts

3. Install and tighten fasteners (4 screws) or nuts as necessary.

into the pump adaptor securing the driver.

4. Tighten drive sleeve clamp nuts to 20-26 ft. lbs. If pump fails to prime or stops pumping,

5. Remove the metal shim strap that spaces check for the following possible causes:

the impeller by pulling it out of the discharge.

6. Rotate the shaft ensuring that the pump 1. No liquid in the pump housing

rotates freely before putting into service. 2. Air leak in the suction line due to loose

connections or pin holes in the hose.

BEARING HOUSING MOUNTING 3. Collapsed suction line or clogged strainer

The bearing housing must be above the pump in 4. Seal worn and leaked air.

any non horizontal application to prevent bearing 5. Worn impeller - too much clearance

damage due to liquid leakage. The pedestal or between impeller and wear plate.

foot mounted pumps, when provided with a driver 6. Pump not running fast enough.

and a coupling are mounted on a steel base plate. 7. Suction lift is too high.

Recheck after unit has been set in place. 8. Trying to prime against too high a

discharge head.

INSTALLATION

DISASSEMBL

For optimum performance, place pump as close

to liquid source as possible to reduce suction lift Disconnect power to prevent accidentally

to a minimum. For best results, pump should be starting. Disconnect lines and drain pump

installed not more than 15 feet above the liquid housing.

supply. Set the unit on solid footing and as nearly

level as possible. MAINTENANCE

Pipe or hose of the same size as flanges provided Use the exploded parts view with these

should be used. Reinforced suction hose is

instructions and note recommended

recommended because it provides greater replacement parts for the pump.

flexibility and prevents collapsing due to vacuum

in the suction line when pump is in operation. Disconnect and remove the pump end from

Suction line should be as short as possible to keep the driver. Remove and replace the suction

friction loss at a minimum. Use pipe sealant on all and discharge gasket. Tighten the inlet and

connections and make certain that all fittings are discharge flange to 24-ft lbs. Remove nuts

tight, particularly on the suction line where an air from the adaptor and disassemble the

leak can prevent priming or reduce pump capacity. rotating assembly from the housing. Inspect

the wear plate for abrasive wear and replace

OPERATION if necessary using new screws, gaskets

and acorn nuts. Remove the seal seat

This petroleum pump is a self-priming centrifugal from the adaptor and discard. Impellers

pump and only requires priming prior to its initial are threaded onto a drive sleeve and

start. The pump will retain sufficient liquid for self- secured by a jam nut.

priming thereaftyer. If the pump has a discharge

valve it must be fully open to expel air during

PETROLEUM SELF-PRIMING CENTRIFUGAL PUMPS

INSTRUCTION BULLETIN

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Mp-pumps PETROLEUM SELF-PRIMING 30, 40 INSTRUCTION Manuel d'utilisateur Page 2

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