Hydraulic system contamination causes most faults. water well drilling rig.Control solids, water and air to reduce wear and blockages.
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Solid particle control:
Use filtered oil guns;
replace filters regularly.
Keep repair areas clean.
Sand from unfiltered oil once jammed valves—fix with new oil/filters.
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Moisture prevention: Fit desiccant breathers; check water content. Oor 0.1%? Change oil or use separators. Rain covers help outdoors—failed breathers once rusted a pump.
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Air removal: Bleed air after first startup or repairs. Open top valves to release bubbles; run empty to clear more. Unbled new rigs made motor noise—bleeding fixed it.

Strict contamination rules extend component life, cut faults, and keep rigs stable.water well drilling rig