2. Belt rolled or pried onto sheave. 3. Object falling into drive. 4. Severe shock load.
Turns Over or Comes of Drive
Turns Over or Comes of Drive
L L
Tie Band Separation Tie Band Separation
Q Q
Vibration Vibration
H H
Undercord Sidewall Burn or Hardening
Undercord Sidewall Burn or Hardening
M M
Broken Belt Broken Belt
R R
CORRECTIVE ACTION Use larger diameter sheaves.
Retension to manufacturer’s recommendations. Increase backside idler to acceptable diameter. Control drive environment.
Don’t coil belt too tightly, kink or bend. Avoid heat and direct sunlight. Check drive design.
Shield grooves and drive. Realign drive.
Replace sheaves. Replace sheave with correct diameter.
Retension to manufacturer’s recommendations. Replace sheaves.
Redesign to manufacturer’s recommendations. Check for center distance changes.
Use correct belt/sheave match. Replace sheaves.
Use correct belt size and type. Check belt tension and adjust. Replace sheaves.
Clean sheaves; improve shielding; remove rust, paint; or remove dirt from grooves. Realign drive.
Check and adjust guard.
Replace or repair backside idler. Clean sheaves.
Use sheaves manufactured to industry specifications. Replace sheaves. Realign drive.
Redesign to manufacturers recommendations. Use drive center distance adjustment when installing. Provide adequate guard or drive protection. Redesign to accommodate shock load.