- Well Stimulation Pump
- WS223 (S/N: SR31-UP)
- WS223 SS (S/N: BM31-UP)
- WS223 XD (S/N: SR41-UP)
- WS255 (S/N: SR51-UP)
- WS255 SS (S/N: BM51-UP)
- WS255 XD (S/N: SR61-UP)
- WS273 XD (S/N: DG21-UP)
- WS305 XD (S/N: EA21-UP)
- WS223 SS (S/N: BM31-UP)
- Well Stimulation Pump Power End
- WSP223 (S/N: FNJ1-UP)
- WSP255 (S/N: FNK1-UP)
- WSP273 (S/N: DG31-UP)
- WSP305 (S/N: EA31-UP)
- WSP255 (S/N: FNK1-UP)
Introduction
Do not perform any procedure in this Inspection until you have read the information and you understand the information.
Customer Information
Date ____________________________________________________________________________________________________
Pump Serial Number ____________________________________________________________
Customer ____________________________________________________________________________________________________
Pinion and Gear Backlash
Illustration 1 | g06026134 |
Offput side (1) Backlash (2) Load location |
Illustration 2 | g06026097 |
Drive side (1) Backlash (2) Load location |
Note: Measurements to be taken before disassembly
Rotate the pinion to the correct position as shown in Illustration 1. While the pinion is in the "loaded" position, check for load and backlash.
Drive Side Current Backlash ________________________________________=X
Drive Side Original Backlash ________________________________________=Y
Offput Current Backlash ____________________________________________________________=X
Offput Original Backlash ____________________________________________________________=Y
Drive Side Total Wear ____________________________________________________________=X-Y
Offput Total Wear ____________________________________________________________=X-Y
Check Gear Load ____________________________________________________________
Pinion Float
Illustration 3 | g06026100 |
Place a dial indicator on the external face of the pinion bearing housing with the indicator plunger on the face of the pinion.
Note: Dial indicator placement is easiest from the offput side.
Measure and record the total travel distance of the pinion.
Pinion Float ____________________________________________________________
Crankshaft Float
Illustration 4 | g06026102 |
Crankshaft float before gears |
Illustration 5 | g06026105 |
Crankshaft float after gears |
Place a dial indicator on the outside of the power frame with the indicator plunger on the face of the bull gear. Measure the total travel distance of the crankshaft.
Original Crankshaft Float
With Gears ____________________________________________________________
Without Gears ____________________________________________________________
Current Crankshaft Float
With Gears ____________________________________________________________
Without Gears ____________________________________________________________
Inspector Initials ________________________________________________________________________________
Visual Inspection of Pinion and Bull Gears
Notes:
________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
Crosshead Guide Tube Measurement
Illustration 6 | g06026110 |
Use a feeler gauge to measure the clearance between the crosshead and guide tube.
Note: Measure along the top half of the crosshead.
Crosshead Running Clearance
#1 ____________________________________________________________________________________________________
#2 ____________________________________________________________________________________________________
#3 ____________________________________________________________________________________________________
#4 ____________________________________________________________________________________________________
#5 ____________________________________________________________________________________________________
Total maximum clearance on diameter is
New pump tolerance per side is
Inspector Initials ________________________________________________________________________________
Main Roller Bearing Clearance
Illustration 7 | g06026114 |
Use a feeler gauge to measure the clearance between the roller bearings and the outer race.
Note: Measure along the top half of the bearings.
Main Roller Bearing Clearance
#1 ____________________________________________________________________________________________________
#2 ____________________________________________________________________________________________________
#3 ____________________________________________________________________________________________________
#4 ____________________________________________________________________________________________________
#5 ____________________________________________________________________________________________________
Total maximum clearance is
New pump tolerance is
Inspector Initials ________________________________________________________________________________
Reference Section
Reference: Disassembly and Assembly, UENR3290 for additional information.
Reference: Disassembly and Assembly, UENR6796 for additional information.