5 Inspection and maintenance
LS Open Loop Vector Motor 4H42, 4H71, 4H72 Manual Supplement
za-o.2.8.41-us-1.1
August 2022
Page 16
za
-o.
2.
8.
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-us
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5.1
Inspection and maintenance intervals
The inspection and maintenance intervals listed apply to normal conditions. If the inter-
vals are found to be too long, for example due to heavy-duty operating conditions, the
user must define shorter intervals.
Additional inspections must be carried out on the product in the following cases:
●
After special incidents or material damage
●
After an extended system standstill (> 1 year)
●
When used near the sea
Authorised person
Symbol
Qualified specialist personnel (crane operators)
Competent person
Service technician of the manufacturer
Co
m
m
iss
ion
ing
Dai
ly bef
or
e ev
er
y oper
at
ion
M
ont
hly
Ev
er
y 3 m
ont
hs
Annual
ly
Af
ter
an ex
tended s
ys
tem
st
ands
till
(>
1 y
ear
)
Ev
er
y 10 y
ear
s
Technical documentation
Perform a visual inspection for completeness
Plates and stickers
Perform a visual inspection for completeness and legibility
Hoist motor
Perform a visual inspection for damage
Perform a functional test of the hoist motor
●
No speed fluctuations,
●
No high noise emissions
●
No strong vibrations
Electrical connection
Check for correct connection of the lines and the power supply
Check the insulation resistance of the motor (see the
Check the insulation resistance
section)
Hoist motor brake
Check function
Check for wear (see
Checking the hoist motor brake
section)
Содержание 4H42
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