Maintenance
9.2 Inspection and maintenance
Standard motors SH 63 ... 355
100
Operating Instructions, 12/2018, A5E38483075A
9.2.3
First inspection after installation or repair
Perform the following checks after approximately 500 operating hours or at the latest six
months after commissioning:
Table 9- 1
Checks after assembly or repair
Check
When the
motor is
running
At stand-
still
The stated electrical characteristics are being observed.
X
The permissible bearing temperatures are not exceeded (Page 82).
X
The smooth running characteristics and machine running noise have not
deteriorated.
X
The motor foundation has no cracks and indentations. (*)
X
X
(*) You can perform these checks while the motor is running or at a standstill.
Additional tests may also be required according to the system-specific conditions.
NOTICE
Machine damage
When carrying out the inspection, if you detect any impermissible deviations from the
normal state, you must rectify them immediately. They may otherwise cause damage to the
machine.
9.2.4
General inspection
Check that the installation conditions are observed. We recommend that the following
checks are performed after approx. 16 000 operating hours or at the latest after two years:
Table 9- 2
Checks that have to be performed during the general inspection
Checking
When the
motor is
running
At stand-
still
The electrical parameters are maintained
X
The permissible bearing temperatures are not exceeded
X
The smooth running characteristics and machine running noise have not
deteriorated
X
The motor foundation has no cracks and indentations (*)
X
X
The machine is aligned within the permissible tolerance ranges
X
All the fixing bolts/screws for the mechanical and electrical connections
have been securely tightened
X
All the potential connections, grounding connections and shield supports
are correctly seated and properly bonded
X
The winding insulation resistances are sufficiently high
X
Any bearing insulation is fitted as shown on the plates and labels
X
The CABLES and insulating parts and components are in good condition
and there is no evidence of discoloring
X
(*) You can perform these checks while the motor is at standstill or, if required, while running.
