Taco VT Series Installation And Operation Instructions Manual Download Page 11

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H6: PACKING BOX

TROUBLE SOURCE

PROBABLE CAUSE

REMEDY

Excessive leakage

1. Improper packing

2. Incorrect type or defective packing

3. Worn shaft or sleeve

1. Repack correctly.

2. Repack with the correct grade for service.

3. Remachine or replace scored parts.

Packing box overheated

1. Improper packing procedure

2. Packing too tight

3. Insufficient lubrication

4. Incorrect type of packing

1. Repack correctly.

2. Repack with the correct grade for service.

3. Remachine or replace scored parts.

Packing wears prematurely

1. Improper packing

2. Insufficient lubrication

3. Shaft or sleeve scored

4. Incorrect type of packing

1. Remove cause.

2. Replace worn parts.

3. Remachine or replace

I: ORDERING PARTS

Please contact your TACO representative with the serial

number of the pump for more information. The serial number of

the pump can be found on the pump information tag.

NOTES

Summary of Contents for VT Series

Page 1: ...ain that no rags wood scraps etc are lodged in any exposed openings Check pit depth and anchor bolt spacing with pump dimensions Lift and handle unit carefully to prevent bending strain damage caused by the hanging weight of the unit Do not lift any item by the shaft Take extra precautions when handling a mechanical seal or packing gland assembly since this is a delicate and precision component 2 ...

Page 2: ...ne correct sequence for installation of column lengths 1 Secure pipe clamp immediately beneath column coupling If column is flanged insert bolts and secure clamp below bottom of flange Clamp should keep bolts in position See Figure A5 3 1 2 Slide the lineshaft into bottom of column pipe and allow it to extend approximately 15 below the bottom end of the pipe Make certain the sleeve area of the lin...

Page 3: ... conjunction with oil tubing the top of the tubing should be approximately 11 4 inches below the tension box mounting face of the head after the flange is adjusted 5 Hoist head slightly Remove the clamp from the top piece of column Remove setting beams and clean surface of the foundation itself If there is an auxiliary line to the bowl bearing or thermo well that portion immediately below and atta...

Page 4: ...nue to tighten head nut until impellers are elevated a sufficient distance about 11 2 turns to accommodate pump hydraulic thrust and associated shaft stretch Align holes in head nut with taps in clutch install and tighten machine screws Place top cover on driver and secure 2 Solid Shaft Motor 2 a Slide the pump hub of the adjustable motor coupling onto the head shaft and insert the key Screw the a...

Page 5: ...tial servicing on the driver as recommended by the driver manufacturer Also perform initial servicing on all auxiliary assemblies if required 2 Recheck all fasteners and fittings for tightness 3 If the air release is manual or if air vent is automatic but equipped with a valve make certain the valve is opened partially but not all of the way 4 If there is a control valve on the discharge side of t...

Page 6: ... cutting the cross section with a chisel and prying one end inward until it is loose in the bore To install make a mandrel to fit the wear rings and press in with an arbor or screw press In an emergency the wear rings can be installed by gently and evenly tapping around the top edge with a wood block and a hammer or a rubber mallet 2 If impeller skirts are equipped with wear rings cut the wear rin...

Page 7: ...5 minutes and if leakage rate is more than desirable tighten the gland nuts 1 8 of a turn This packing adjustment is made with the pump running Before making another adjustment allow the packing to equalize against the increased pressure and the leakage to gradually decrease to a steady rate PUMP PACKING MUST ALWAYS LEAK SLIGHTLY Note 1 Chances are the packing will run a little warmer for the firs...

Page 8: ...mp Check operating vibration of the pump and compare to vibration check taken during initial inspection If vibration has changed shut down pump and inspect bowl assembly for damage or clogging Pump Foundation Check foundation for settling It may cause misalignment of pump and strain on discharge and suction piping Correct for any change in foundation Pump Performance Check discharge and suction pr...

Page 9: ... 7 Lubrication oil too heavy 8 Bent shaft 9 Tight bearing or packing 10 Specific gravity or viscosity of fluid higher than design 11 Worn pump 12 Damaged pump 13 Partial freezing of pump liquid ABNORMAL NOISE 1 Motor noise 2 Pump bearing running dry 3 Broken column bearing retainers 4 Broken shaft or oil tubing 5 Impeller dragging on bowl case 6 Cavitation due to insufficient N P S H A and or subm...

Page 10: ...place clean and assemble cor rectly 2 Face parallel and concentric H4 SHAFT AND COUPLING TROUBLE SOURCE PROBABLE CAUSE REMEDY Bent shaft Mishandling in transit or assembly Check straightness Correct to 005 ft total run out or replace Shaft coupling elongated neck down 1 Motor is started while pump running in reverse 2 Corrosion 3 Pipe wrench fatigue on reused couplings 4 Power being applied to sha...

Page 11: ... Insufficient lubrication 4 Incorrect type of packing 1 Repack correctly 2 Repack with the correct grade for service 3 Remachine or replace scored parts Packing wears prematurely 1 Improper packing 2 Insufficient lubrication 3 Shaft or sleeve scored 4 Incorrect type of packing 1 Remove cause 2 Replace worn parts 3 Remachine or replace I ORDERING PARTS Please contact your TACO representative with t...

Page 12: ... warranted by the motor manufacturer For complete details on motor warranty returns the purchaser should contact the motor manufacturer s local service repair center or contact the motor manufacturer directly Seals provided on commercial pumps are not covered by this warranty Any Taco product or part not installed or oper ated in conformity with Taco instructions or which has been subjected to mis...

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