Paco-Pumps KP - User Manual

Questions and Answers

Z
zbaileyAug 12, 2025
Why Paco-Pumps Water Pump does not deliver any liquid at start-up?
- T
  Tammy BurtonAug 12, 2025
  If your Paco-Pumps Water Pump isn't delivering liquid at start-up, it might be due to several reasons: * The pump may not have been properly bled of air; in this case, properly bleed the pump of air. * The pump suction line may not be completely primed; completely prime the pump suction line. * The suction valve might be closed or only partially open; ensure the suction valve is fully open. * The suction strainer could be clogged with dirt or debris; clean or replace the clogged suction strainer.
H
Heather SextonAug 15, 2025
What to do if Paco-Pumps Water Pump runs rough and noisily?
- R
  robin71Aug 15, 2025
  If your Paco-Pumps Water Pump is running rough and noisily, it could be due to: * The impeller may be clogged with debris, so clean the impeller of any debris. * The pump may run rough due to improper balancing of the impeller, so balance the impeller correctly. * The shaft may chatter because it is bent, so replace the bent shaft.
B
Brittany JacksonAug 19, 2025
Why is my Paco-Pumps Water Pump using too much power?
- B
  Bethany BeanAug 19, 2025
  If your Paco-Pumps Water Pump is using too much power, it could be that the total head of installation (back pressure) is higher than the rated total head of the pump. To resolve this, check and adjust the installation head pressure.
L
Laura BradleyAug 23, 2025
What to do if Paco-Pumps Water Pump overheats and/or ceases to deliver liquid?
- Q
  qwoodAug 23, 2025
  If your Paco-Pumps Water Pump overheats and/or ceases to deliver liquid, make sure proper cooling fluid is supplied to the shaft seals. Also, excessive tightening of the packing gland may block the flushing port thereby diminishing the sealing fluid flow, so adjust the packing gland to allow proper flushing fluid flow. You can also inspect the pump for signs of overheating and check the bearings.
C
Curtis WeissAug 27, 2025
Why is the discharge pressure too high on my Paco-Pumps Water Pump?
- K
  Kelly MillerAug 27, 2025
  If the discharge pressure is too high on your Paco-Pumps Water Pump, it is possible that the total head of installation (back pressure) is higher than the rated total head of the pump. Check and adjust installation head pressure to resolve this.
A
Ashley EspinozaAug 31, 2025
How to fix insufficient flow rate in Paco-Pumps Water Pump?
- S
  savannah42Aug 31, 2025
  If you're experiencing an insufficient flow rate with your Paco-Pumps Water Pump, it could be because the pump hasn't been properly bled of air, so properly bleed the pump of air. It's also possible that the pump is operating at too low a rate of flow; increase flow rate if the discharge valve is throttled.
A
Andrew KrauseSep 4, 2025
What causes Paco-Pumps Water Pump bearings to overheat and/or fail prematurely?
- P
  Paul AllenSep 4, 2025
  If the bearings in your Paco-Pumps Water Pump are overheating or failing prematurely, it could be due to excessive greasing, which may cause the bearings to overheat, so reduce the amount of grease applied to the bearings. Inadequate lubrication may also be causing bearing failure, so ensure adequate lubrication is provided to the bearings.
T
tarajacobsSep 7, 2025
What causes shaft seal leaks in Paco-Pumps Water Pump?
- B
  Brittany PaceSep 7, 2025
  If the shaft seal leaks appreciably, or the packing leaks excessively in your Paco-Pumps Water Pump, the shaft seal may be incorrectly installed, or the stuffing box has not been packed correctly. Reinstall or repack the shaft seal correctly.

Summary

Installation - Mechanical

Location

Pump Foundation

Install pump on a firm, concrete foundation pad to dampen vibration and prevent misalignment.

Suction (Inlet) Piping

Size and install suction piping to minimize loss and ensure flow; avoid high points.

Mechanical Seals

Coupling Alignment

Align pump and motor coupling hubs accurately to within .005" runout.

Operation

Priming

Pump is not self-priming; must be completely filled with liquid before starting.

Pre-Start Checklist

Inspect piping cleanliness, wiring, voltage, rotation, and secure fittings before starting.

Motor Rotation

Starting the Pump

Ensure coupling guard is in place; open suction valve, crack discharge valve, start motor.

Pump Shutdown

Maintenance

Pump Bearing Lubrication - General Comments

Stuffing Box Packing Shaft Seal - Water Lubrication

Bearing, Seal, & Packing Replacement

Covers procedures for replacing bearings, mechanical seals, and packing.

Disassembly of Horizontal Pumps

Disassembly of Vertical Pumps

Component Inspection

Reassembly of Pumps

Trouble Shooting

Symptoms

Lists common pump symptoms and their corresponding cause codes for diagnosis.

Possible Causes

Provides a list of potential causes for pump operational issues, referenced by cause codes.

Paco-Pumps KP Specifications

General

Type	Centrifugal Pump
Application	Water Supply
Impeller Type	Open
Casing Material	Cast Iron, 316 Stainless Steel
Inlet Diameter	25-200 mm
Outlet Diameter	25-200 mm
Material	Cast Iron, 316 Stainless Steel

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