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Tensioning Guide
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Armstrong Fluid Technology Vertical In-Line Pumping Unit IVS 4300-12x12x17-6p-150hp

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Maintenance Plans for Armstrong Fluid Technology Vertical In-Line Pumping Unit Model IVS 4300-12x12x17-6p-150hp

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Vertical In-Line Pumping Unit Lubrication

Pump Lubrication

Lubrication is not required. There are no bearings in the pump that need external lubrication service.

Large Design Envelope 4300 units are installed with a shaft bushing located beneath the impeller that is lubricated from the pump discharge.

Motor Lubrication

Follow the lubrication procedures recommended by the motor manufacturer. Many small and medium sized motors are permanently lubricated and need no added lubrication. Generally, if there are grease fittings evident the motor needs periodic lubrication. None if not.

Check the lubrication instructions supplied with the motor for the particular frame size indicated on the motor nameplate.

Warranty

Does not cover any damages to the equipment resulting from failure to observe the above precautions. Refer to Armstrong General Terms and Warranty sheet. Contact your local Armstrong representative for full information.

WARNING

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Mechanical Seal Replacement

CAUTION: Do not use oil, Vaseline or other petroleum or silicon based products for seal elastomer lubrication. Otherwise elastomer swelling may occur, causing seal failure. Recommended: International Products Corp p-80 Rubber Lubricant Emulsion in usa & uk www.ipcol.com

Seal Removal: An important feature of the Series 4300 and 4302 pump is that the design permits removal of the mechanical seal without disturbing the pump, motor or electrical wiring.

A, Disconnect the power supply at the main switch and close the isolating valves on the suction and discharge. Empty casing by removing drain plug(s) located at the bottom.

B. Loosen off the seal collar set screws (1) Remove the coupling screws (2) and separate the coupling halves (3). Remove the motor shaft key (4) and the pump shaft key (6). Do not remove motor collar (5) for seal replacement. Use Allan wrench and insert coupling screw into positioning hole (21) to prevent shaft rotation and remove the capscrew, lockwasher and collar (17, 16, & 18) from the pump shaft.

C. Remove the mechanical seal rotating assembly (8) through the gap between the pump and motor shafts.

D. Disconnect the seal flush piping (10a). Mark seal plate (10) position. Remove the seal plate bolts (9) and seal plate (10). Remove the stationary seat (11) and seat gaskets (13 & 14).

Seal Replacement Handle mechanical seal carefully to protect seal faces from damage. Do not contaminate seal faces with finger prints.

E. Replace the stationary seat (11) and gaskets (13 & 14), aligning the seat flush hole with the seal plate flush line connection. Ensure the large diameter gasket (14) is on the bottom. Replace seal plate (10) and tighten the seal plate bolts (9) evenly and diagonally, to the following torque (ft. lbs) values: 1.125" seal – 20; 1.625"/2.125"/2.625" (7.5" diameter plate) – 50; 2.625 (9" diameter) – 90; 3.5" – 90.

F. When installing the mechanical seal (8), ensure parts are perfectly clean.

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