Version 1.0
Version 1.0
Troubleshooting
46
46
Load chain
Condition
Reason
Action
Cause
Correction
Chain is twisted
Bottom hook up
-
turned
Reset hook
Bottom hook rotation during
usage
Check hook state before oper
-
ation
Chain twist in ma
-
chinery body
Reassemble chain guide and load
chain
Improper assembly
Ensure proper assembly
Limit switch suddenly activated
while lowering
Chain is twisted or
knot in chain bag
Confirm chain bag capacity (chain
bag nameplate) replace with larger
one if capacity insufficient
Chain bag inadequate
capacity
Confirm lifting height and chain
bag capacity
Crackling sound
Chain is damaged
Measure wear of chain link
diameter. Replace if reaching wear
limit
Long-term operation with
insufficient lubrication
Apply grease lubricant regularly
Irregular sound from springs
(cracking sound)
Wear of link part
Measure diameter on wear of
chain, and replace when at wear
limit
Excessive operation
Avoid excessive operation
Overload
Use under rated load
Incline pull
Ensure proper pull direction
Wear of load pulley and
empty pulley
Refer to load pulley and empty
pulley
Extension of pitch
Measure pitch and replace when
exceeding limit
Overload
Use under rated load
Irregular sound
Damage or deforma
-
tion on chain surface
Replace when obvious damage and
deformation occur
Use under transition situa
-
tion
Use under models with multiple
chain
Chain used improperly
Ensure proper assembly
Mark on chain
surface
Damaged by other equip
-
ment
Monitor surrounding environ
-
ment throughout usage to avoid
collisions
Discoloration
Rust, corrosion
Apply lubricants and replace when
obvious rust and corrosion occurs
Lubricant exhausted
Apply lubricating oil regularly
Exposure to water
Use in dry places
Influenced by seawater or
chemical agent
Inform us if used in special cir
-
cumstances to safeguard range
Load chain fractured
Reaching service life Check chain, replace if differing
from benchmark specifications
Mechanical life
Operate correctly and manage
properly including inspection
before usage and regular
check-ups
V.07.22 [LA]
Содержание PWJTHF
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Страница 33: ...Version 1 0 33 Parts 33 1 4 Trolley assembly drawing V 07 22 LA...
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