TROUBLE
|
PROBABLE CAUSE
|
RECOMMENDED REMEDY
|
| (1) Frozen or sluggish pulley. |
a. Defective bearing. |
a. Replace with new bearing. |
| |
b. Bent shaft. |
b. [LOCK OUT UNIT.]
Remove pulley and replace shaft. Carefully inspect for damage to bearings
and replace as required. |
| (2) Excessive noise |
a. Belt slipping on pulley
face. |
a. [NEVER
REACH UNDER OR INTO UNIT.] Adjust tension at takeup device. |
| |
b. Loose mounting. |
b. Tighten mounting. Check level and alignment
of pulley shaft or belt will not track properly. |
| |
c. Bearing not adequately lubricated.
|
c. If bearing is excessively worn, replace
with new bearing. Check fit of inner race to ensure against bearing distortion.
Check level and alignment at pulley shaft. Check shaft for straightness.
|
| |
d. Bent shaft. from pulley. |
d. Remove pulley to replace shaft. Inspect
bearings for damage and replace as necessary. |
| |
e. Loose bearing mount. |
e. Tighten bearing lock mounting bolts.
Check level and alignment of pulley shaft. |
| (3) Excessive wear to belt or pulley face.
|
a. Belt tension too low-belt slips on
pulley causing wear. |
a. Adjust takeup tension until slippage
ceases. |
| |
b. Gritty material ground between belt
and pulley. |
b. Clean pulley face and pulley side of
belt by brushing and wiping. Guard against spillage between belt and pulley.
|
| |
c. Splicing fasteners protruding. |
c. Tighten or replace fasteners as necessary.
|
| |
d. Oil or grease on lagging. |
d. Remove oil or grease. If lagging has
deteriorated, replace pulley. |
