Version 1.0
47
Troubleshooting
47
Chain Wheel
Load pulley and empty pulley
Chain Guide
Chain Wheel, Junction Part
Bearing
Condition
Reason
Action
Cause
Correction
Improper noise
Wear of chain wheel
Check wear degree on chain, wheel
slot, and load chain. Replace if
badly worn
Long-term operation with
insufficient lubrication
Apply lubricating oil regularly
Excessive operation
Avoid excessive operation
Overload
Use under rated load
Incline pull
Avoid incline pull
Condition
Reason
Action
Cause
Correction
Irregular sound from springs
(cracking sound)
Wear of pulley
Measure slot edge thickness and
load chain, replace if badly worn
Long-term operation with
insufficient lubrication
Apply lubricating oil regularly
Excessive operation
Avoid excessive operation
Overload
Use under rated load
Incline pull
Avoid incline pull
Condition
Reason
Action
Cause
Correction
Increased shaking
Wear of chain guide
and guide pulley
Measure benchmark size and load
chain, replace if badly worn and
limit size exceeded
Incline pull
Avoid incline pull
Condition
Reason
Action
Cause
Correction
Unable to lift loads
Wear, breakage
Replace when obvious wear or
breakage occur
Long-term operation with
insufficient lubrication
Apply lubricating oil and inspect
annually
Long-term operation with
insufficient lubrication (joint
part of motor shaft)
Apply lubricating oil and inspect
annually
Irregular operation
Wear, breakage
Limit switch used too
frequently
Avoid excessive use of limit
switch
Condition
Reason
Action
Cause
Correction
Unable to lift loads
Breakage
Replace bearing
High temperature or high
frequency
Avoid use at high temperatures
or high frequency
V.07.22 [LA]
Содержание PWJTHF
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Страница 30: ...Version 1 0 Parts 30 30 1 H3 EXPLODED VIEW AND PARTS LIST 1 1 Motor and body assembly drawing V 07 22 LA...
Страница 33: ...Version 1 0 33 Parts 33 1 4 Trolley assembly drawing V 07 22 LA...
Страница 49: ...49 Wiring Diagram 49 7 CONVENTIONAL HOIST WIRING DIAGRAM PWJTHF PWJTHT V 07 22 LA...
Страница 50: ...Wiring Diagram 50 50 V 07 22 LA...