Unusual noise, vibration, or complete loss of drive between motor and compressor.
1
Elastomeric coupling element worn out
CheckWith LOTO and 0 PSI verified, inspect coupling insert for cracking, chunking, or excessive play.
FixReplace coupling insert; verify alignment before reassembly.
SafetyLOTO before accessing rotating coupling components.
Sign in to rate whether this fix helped.
2
Misalignment between motor and airend/gearbox shafts
CheckCheck alignment with dial indicators or laser alignment tool against OEM tolerance.
FixRealign and shim as needed; recheck after final bolt torque.
ToolsLaser alignment tool or dial indicators
Sign in to rate whether this fix helped.
3
Gearbox oil low or degraded (geared screw units)
Rotary screw
CheckCheck gearbox oil level and condition per OEM schedule; sample for analysis if due.
FixTop up or change gear oil per OEM spec; investigate leaks if low.
Sign in to rate whether this fix helped.
4
Gear tooth wear/pitting
highRotary screw
CheckOil analysis showing metal content; inspect via inspection port if available.
FixGearbox rebuild or replacement.
Sign in to rate whether this fix helped.
5
Loose coupling guard contacting rotating parts
CheckVisual/audible inspection with unit stopped and locked out.
FixRe-secure guard per OEM; never operate with a guard removed.
SafetyNever operate rotating equipment with safety guards removed.
Sign in to rate whether this fix helped.
Did we solve your issue?
Sign in to share what resolved it and help others.
Field notes & discussion (0)
Share what actually fixed it. Comments are reviewed by a moderator before they go public.
Sign in to join the discussion.
Safety
Lockout/tagout before opening enclosures. Verify zero energy. Bleed system pressure before opening any pneumatic connection.