DRUM 5M1998 - Caterpillar

Well Stimulation PumpWS223 (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)Well Stimulation Pump Power EndWSP223 (S/N: FNJ1-UP)WSP255 (S/N: FNK1-UP)WSP273 (S/N: DG31-UP)WSP305 (S/N: EA31-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 locationNote: Measurements to be taken before disassemblyRotate 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 ________________________________________=XDrive Side Original Backlash ________________________________________=YOffput Current Backlash ____________________________________________________________=XOffput Original Backlash ____________________________________________________________=YDrive Side Total Wear ____________________________________________________________=X-YOffput Total Wear ____________________________________________________________=X-YCheck Gear Load ____________________________________________________________Pinion Float
Illustration 3 g06026100Place 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 FloatWith Gears ____________________________________________________________Without Gears ____________________________________________________________Current Crankshaft FloatWith Gears ____________________________________________________________Without Gears ____________________________________________________________Inspector Initials ________________________________________________________________________________Visual Inspection of Pinion and Bull Gears
Notes:________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Crosshead Guide Tube Measurement
Illustration 6 g06026110Use 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 1.143 mm (0.045 inch). The maximum clearance per side is 0.584 mm (0.023 inch).New pump tolerance per side is 0.279 mm to 0.381 mm (0.011 inch to 0.015 inch).Inspector Initials ________________________________________________________________________________Main Roller Bearing Clearance
Illustration 7 g06026114Use 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 0.381 mm (0.015 inch).New pump tolerance is 0.076 mm to 0.177 mm (0.003