KITO ER2 - Page 159

159
Category Check item Check method Criteria
Inspection date/result
/ / / / / /
Driving unit
Bearing
Visual inspection,
Check CH Meter
• Tohavenoapparentabrasion,awanddamage
• To move smoothly
• Operating hours not to exceed the guidelines for
replacement of bearing
Load gear, Gear B,
Pinion
Visual inspection,
Check CH Meter
• To have no apparent abrasion, deformation and damage
• Operating hours not to exceed the guidelines for
replacement of bearing
Friction clutch
Visual inspection,
Check CH Meter
• Tohavenoapparentabrasion,deformationandaw
• Operating hours not to exceed the guidelines for
replacement of gears
Friction Clutch with
Mechanical Brake
Visual inspection,
Check CH Meter
• Tohavenoapparentabrasion,deformationandaw
• Operating hours not to exceed the guidelines for
replacement of gears
Load sheave
Visual inspection/
inspection by
measurement
• To have no apparent abrasion, deformation and damage
• Tohavenoawonsheavepocketduetodefective
engagement
• The thickness of sheave pocket must not lower the criteria.
Idle sheave
Visual inspection/
inspection by
measurement
• To have no apparent abrasion, deformation and damage
• Tohavenoawonsheavepocketduetodefective
engagement
•
The thickness of sheave pocket must not lower the criteria.
V ring
Visual inspection,
Check CH Meter
• To have no deformation and crack
• Apply grease MOLITHERM No.2 on the V ring at
brake cover side at 200 hours of operating hours
Electrical parts
Electrical parts Visual inspection
• To have no damaged or burnt part
• To be mounted securely
• Number of start no to exceed the guidelines for replacement
Wiring Visual inspection
• Wiringtobexedtoelectricalpartssecurely
• Connector to be inserted securely
• To have no damaged or burnt part
Intrusion or attachment
of foreign matter
Visual inspection
• To have no water drop or foreign matter such as
dust inside
VFD
Check the CH
Meter (check of
service life)
• Electrolytic capacitors 3000 hours (depending on
the operating conditions)
• Refer to “VFD Manual” for other items.
Electric
characteristics
Source voltage Measurement To be supplied power within rated voltage ± 10 %
Insulation resistance Measurement Insulationresistancetobehigherthan5MΩ
Grounding resistance Measurement
Tobegroundedwithgroundingresistance100Ωorless
Function/performance
Operational check
Lifting/lowering
operation with a
capacity
Perform inspection of the items on function/
performance of daily inspection and frequent
inspection with no load, and then perform the
inspection of the same items with a capacity.
Brake
Lifting/lowering
operation with a
capacity
Visual inspection/
inspection by
measurement
Stopping distance of lifting/lowering to be within
1 % of the lifting distance
■
Electric Chain Hoist ER2 Periodic Inspection (2/2)
■
Check result :
○
Good,
△
To be replaced (adjusted) next inspection,
×
Bad, Needs replacement (adjustment)
(to be continued)
A
Check Sheet for
ER2 Series
Electric Chain Hoist Periodic Inspection
• When any abnormality is observed during inspection, stop the use of
electric chain hoist, indicate “FAILURE”, and contact the maintenance
engineer or KITO for repair.
Use of the product with abnormality may result in death or serious injury.
Mandatory
Decide the check items
appropriate to the
environment and operating
conditions of the customer.
NOTE
Executed by Inspector
Checked by Maintenance Engineer
DANGER