Pentair AURORA Edwards 20 User manual

Edwards Model 20 / Model 80
Pump Maintenance Manual

i
Contents
Safety
General Precautions . . . . . . . . . . . . . . iii
Warnings and Cautions . . . . . . . . . . . . iii
Warnings . . . . . . . . . . . . . . . . . . . . . . . . iii
Cautions . . . . . . . . . . . . . . . . . . . . . . . . . iv
1 General
Introduction . . . . . . . . . . . . . . . . . . . . 1-1
2 Maintenance
Consumable Materials. . . . . . . . . . . . 2-1
Lubrication . . . . . . . . . . . . . . . . . . . . . 2-2
Troubleshooting . . . . . . . . . . . . . . . . . 2-2
Removal . . . . . . . . . . . . . . . . . . . . . . . 2-3
Disassembly . . . . . . . . . . . . . . . . . . . . 2-4
General Practice . . . . . . . . . . . . . . . . . 2-4
Disassembly Procedure . . . . . . . . . . . . 2-4
Cleaning . . . . . . . . . . . . . . . . . . . . . . . 2-6
Inspection . . . . . . . . . . . . . . . . . . . . . . 2-7
Repair and Replacement . . . . . . . . . . 2-7
Assembly . . . . . . . . . . . . . . . . . . . . . . 2-8
General Practice . . . . . . . . . . . . . . . . . 2-8
Assembly Procedure . . . . . . . . . . . . . . 2-8
Replacement. . . . . . . . . . . . . . . . . . . 2-12
3 Installation
Inspection . . . . . . . . . . . . . . . . . . . . . .3-1
Unpacking . . . . . . . . . . . . . . . . . . . . . .3-1
Repacking . . . . . . . . . . . . . . . . . . . . . .3-1
Storage . . . . . . . . . . . . . . . . . . . . . . . .3-1
Installation. . . . . . . . . . . . . . . . . . . . . .3-2
Clean Pump . . . . . . . . . . . . . . . . . . . . . 3-2
Mount Pump. . . . . . . . . . . . . . . . . . . . . 3-2
Prepare Foundation . . . . . . . . . . . . . . . 3-4
Level Pump Skid . . . . . . . . . . . . . . . . . 3-5
Grout Pump Skid . . . . . . . . . . . . . . . . . 3-5
Check Driver Rotation. . . . . . . . . . . . . 3-6
Align Couplings . . . . . . . . . . . . . . . . . . 3-7
Piping . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Strainers . . . . . . . . . . . . . . . . . . . . . . . 3-10
Overpressure Protection . . . . . . . . . . 3-10
Pre-Startup Checks . . . . . . . . . . . . . 3-11
4 Parts
Warranty

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Safety
General Precautions
The following are general safety precautions not related to any specific procedure. Per-
sonnel must understand and apply these precautions during both operation and main-
tenance of the pump.
Do Not Operate Pump Without Ear Protection. The pump has heat-treated steel
timing gears, which can be very noisy when operated above 900 rpm.
Be Aware of High Heat When Unit Is Running. Both operating and maintenance
personnel must observe all safety precautions at all times. To avoid injury, always de-
energize the input power sources and lock-out or red-tag the controller. Let the pump
cool before handling.
Be Aware of Chemical Hazards. Maintenance personnel must observe all safety pre-
cautions while working with the chemicals used in cleaning agents.
Warnings and Cautions
The following warnings and cautions relate to specific procedures in this manual. They
are repeated here for emphasis.
Warnings
Do not perform maintenance using this manual if the model number on the
pump is not 20-420 or the serial number is not ________________. Performing
maintenance using the wrong manual could result in pump failure or personal
injury.
To avoid injury, always de-energize the input driver and lock-out or red-tag the
controller. Let the pump cool before removing.
To avoid injury, always use suitable protective gear. The timing gear is hot!
Overpressurization of the pump can cause equipment failure, resulting in per-
sonal injury.