V-Belt Drive - Walinga ULTRA-VAC 5614D Manual

6.4

V-BELT DRIVE

PROBLEM
Loss in drive speed.
CAUSE
Belts slipping.
Localized belt wear.
Unequal stretch on belts.
Belts overloaded.
Belt separation.
Envelope seams opening.
Abnormal envelope wear.
Belt softening or swelling.
Belt hardening or cracking.
SOLUTION
Tighten belts as required.
Check cross-section dimension.
a. If narrow, pulley spinning.
b. If swollen, belt failing
internally.
Defective belts. Replace with
matched set.
Belts failed or worn out. Replace
belts with matched set.
Belts too tight. Replace belts and
set correctly.
Check for oil or rubber solvent.
Eliminate contamination and
replace belts.
Check for worn sheave,
misalignment or slip. Replace
defective parts, adjust properly
and replace belt.
Eliminate oil or rubber solvent.
Replace belt.
Eliminate heat or chemical
contamination. Replace belt.
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