AC70T Crane Purpose VFD Manual
70
Electrolytic
capacitor
●
Whether there is liquid leak, color
change or crack. Whether the safety
valve outcrop, inflation, creak or liquid
leak.
●
Change damaged component
Peripheral
equipment
●
Peripheral equipment outlook and
insulation checking.
●
Clear and change damaged
component.
PCB
●
Peculiar smell color change, bad rust
and connector checking.
●
Fasten connector
●
Clear PCB
●
Change damaged PCB
Cooling system
●
Check whether the fan is damaged or
blocked up.
●
Whether rubbish and dust is stuck to
the heatsink .
●
whether the air inlet/outlet blocked Or
is there something sticking to the
inlet/outlet.
●
Clean operation environment
●
Change damaged component
Keyboard
●
Whether it is damaged. Check
whether display is complete.
●
Change damaged component
Motor
●
Check if there is abnormal vibration or
noise.
●
Tighten machine and electric
connection and lubricate the
machine components.
7.2 Maintenance
All equipments and components have useful life. Right maintenance can prolong the lifetime. But it can not avoid
damage. Please change the components before their lifetime over.
Component
Useful lifetime
Fan 2~3year
Electrolytic capacitor
4~5 year
PCB 8~10
year
The replacement of the other components has strict requirements on maintenance technology and product familiarity.
And they cannot be used without strict detection after replacement. So we suggest the user not to replace the other
inner components. If they need to change indeed, please contact to the dealer or the sales department of
Manufacture Company.
