Industrial Power Transmission Products - Bando USA
Industrial Power Transmission Products - Bando USA
Industrial Power Transmission Products - Bando USA
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Belt Belt Troublehshooting Guide<br />
This chart identifies solutions to common problems you may encounter if belt drives aren’t properly designed, installed<br />
or maintained. Once problems have been identified and corrected, your <strong>Bando</strong> belt drives will give you efficient<br />
performance and economical service.<br />
Problem Cause Solution Problem Cause Solution<br />
Short Belt Life<br />
Short life - no visible<br />
reason<br />
134<br />
V-Belts<br />
Worn or damaged<br />
grooves<br />
Underdesigned drive<br />
Tensile cords damaged<br />
from incorrect installation<br />
Wrong type or cross<br />
section belt<br />
Separation of cover Oil or grease<br />
plies. Soft, stick swollen<br />
side-walls.<br />
Separation of cover<br />
plies. Dry, hard sidewalls.<br />
Cracked bottom<br />
High temperatures<br />
Replace sheaves<br />
Redesign drive<br />
Replace belts with a new<br />
matched set. Follow installation<br />
instructions on page 132<br />
Replace with correct belt<br />
Remove source of oil or<br />
gease and clean belts with<br />
detergent and water<br />
Remove heat source and/or<br />
improve ventilation<br />
Cracked belt bottom Sheaves too small Redesign drive<br />
Backside idler pulley too<br />
small<br />
Redesign drive<br />
Slippage<br />
Retension drive<br />
Broken belts Excessive tension Reduce tension<br />
Objects hitting belts Protect drive with guard<br />
Belt cut on bottom Belt ran off sheave Check tension and alignment<br />
Improper installation<br />
Follow installation instructions<br />
on page 132<br />
Belt deterioration Belt dressing<br />
Never use belt dressing.<br />
Clean belt with detergent<br />
and water<br />
Extreme cover wear, Belt rubs on guard Align drive to give proper<br />
worn corners<br />
clearance<br />
Dusty environment<br />
Sheaves rusted;<br />
sheaves have sharp corners<br />
or burrs<br />
Clean belt and protect<br />
guard<br />
Clean rust from sheaves;<br />
file down sharp corners and<br />
burrs<br />
Slippage<br />
Retension drive<br />
Spin burns Slippage<br />
Retension drive<br />
Underdesigned drive<br />
Water or oil<br />
Redesign drive<br />
Clean belt and protect guard<br />
Belt Stretch<br />
Equal stretch Underdesigned or overloaded<br />
drive<br />
Redesign drive<br />
Insufficient take up<br />
allowance<br />
Check drive design manual<br />
Unequal stretch Misaligned drive Realign and retension drive<br />
Belt Noise<br />
Improper Drive Speed<br />
Tensile cord broken from<br />
incorrect installation<br />
Slippage<br />
Design error<br />
Replace belts with a new<br />
matched set. Follow installation<br />
instructions on page 132<br />
Retension drive<br />
Redesign drive<br />
Refer to page 132 for proper V-belt installation.<br />
Vibration<br />
Belt Turnover<br />
Hot Bearings<br />
Overtensioned drive<br />
Undertensioned drive<br />
Sheaves too far out on<br />
shaft<br />
Bad bearings<br />
Sheaves too small<br />
Cracks on backing<br />
Softening of backing<br />
Tensile or tooth shear<br />
failure<br />
Noise<br />
Excessive edge wear<br />
Excessive wear on<br />
tooth fabric<br />
Incorrectly placed flat<br />
idler pulley<br />
Distance between<br />
shafts too long<br />
Belt lengths uneven<br />
Belts too loose<br />
Vibration and shock<br />
loads cause belts to<br />
jump and whip<br />
Debris in grooves<br />
Misaligned sheaves<br />
Tensile cord broken<br />
from incorrect installation<br />
Incorrectly placed flat<br />
idler pulley<br />
Worn sheave grooves<br />
Worn sheave grooves,<br />
belts bottom out<br />
Slippage<br />
Design error or obstruction<br />
problem<br />
Design error or poor<br />
maintenance<br />
Design error<br />
Timing Belts<br />
Low temperatures<br />
High temperatures<br />
Exposure to oil<br />
Small pulley diameter<br />
Less than 6 teeth-inmesh<br />
Excessive load<br />
Misalignment<br />
Excessive tension<br />
Small pulleys<br />
Excessive load<br />
Misalignment or nonrigid<br />
centers<br />
Overtensioned or<br />
underdesigned drive<br />
Align idler on slack side close<br />
to driver<br />
Install idler<br />
Replace with a new matched<br />
set of belts<br />
Retension<br />
Use <strong>Bando</strong> Combo<br />
Clean grooves and protect<br />
drive with guard<br />
Realign sheaves<br />
Replace belts with a new<br />
matched set. Follow installation<br />
instructions on page 132<br />
Align idler on slack side close<br />
to driver<br />
Replace sheaves<br />
Replace sheaves and retension<br />
Retension drive<br />
Redesign and place sheaves as<br />
close as possible to bearings<br />
Redesign and/or maintain correctly<br />
Redesign drive<br />
Increase temperature or check<br />
with <strong>Bando</strong> for special construction<br />
belt<br />
Cool drive or check with <strong>Bando</strong><br />
for special construction belt<br />
Remove source of oil or check<br />
with <strong>Bando</strong> for special construction<br />
belt<br />
Redesign drive<br />
Increase teeth-in-mesh or use<br />
smaller pitch belt<br />
Redesign drive<br />
Realign drive<br />
Reduce tension<br />
Redesign drive<br />
Redesign drive<br />
Realign and reinforce mounting<br />
Reduce tension or redesign<br />
To find an authorized BANDO distributor, go to www.bandousa.com or call 1-800-829-6612
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