Gaskets, O-rings, and seats replacement
WARNING:
Risk of death or serious injury. Leaking fluid can cause fire and/or burns. Replace all gaskets
and O-rings at each overhaul or disassembly.
WARNING:
Risk of serious personal injury or property damage. Fasteners such as bolts and nuts are criti-
cal to the safe and reliable operation of the product. Ensure appropriate use of fasteners during
installation or reassembly of the unit.
•
Use fasteners of the proper size and material only.
•
Replace all corroded fasteners.
•
Ensure that all fasteners are properly tightened and that there are no missing fasteners.
Stuffing box cover and seal chamber replacement
•
Thoroughly clean the gasket surfaces and fits to remove rust and debris.
•
Inspect surfaces for pitting, and excessive wear or corrosion damage.
6.3.2 Fastening
WARNING:
Risk of serious personal injury or property damage. Fasteners such as bolts and nuts are criti-
cal to the safe and reliable operation of the product. Ensure appropriate use of fasteners during
installation or reassembly of the unit.
•
Use fasteners of the proper size and material only.
•
Replace all corroded fasteners.
•
Ensure that all fasteners are properly tightened and that there are no missing fasteners.
6.3.3 Power end inspection
Checklist
Check the bearing frame for these conditions:
•
Visually inspect the bearing frame and frame foot for cracks.
•
Check the inside surfaces of the frame for rust, scale, or debris. Remove all loose and foreign ma-
terial.
•
Make sure that all lubrication passages are clear.
•
If the frame has been exposed to pumped fluid, inspect the frame for corrosion or pitting.
•
Inspect the inboard-bearing bores.
If any bores are outside the measurements in the Bearing fits and tolerances table, replace the
bearing frame.
•
Inspect the shafts and sleeves for wear.
•
Inspect the labyrinth seal O-rings for cuts and cracks.
6.3 Preassembly inspections
112
XHD Installation, Operation, and Maintenance Manual
Summary of Contents for XHD
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