Vascat MAC QM, Operation And Maintenance Manual

Page: 46 / 56

OPERATION AND MAINTENANCE MANUAL
MAC QM MOTORS
PAGE: 46
CODE: CTT42 EDITION: 01 RELEASE: JULY 2016
Subject to technical changes without prior notice
6. MAINTENANCE
This chapter describes the preventive maintenance operations for MAC QM motors. VASCAT declines all responsibility for faulty
maintenance performed by the end user.
6.1 Safety instructions
WARNING
Skilled personnel
All the cleaning and maintenance work must be carried out by skilled personnel in observance of the safety regulations that
apply to the machine coupled to the motor and when the motors are completely stopped and isolated from the mains.
Always check that there is no voltage! If the mains power cables are switched-on, make sure there is no power voltage and that
no voltage can be applied in any way.
6.2 Maintenance operations and frequency
Activities Service intervals and terms
Basic inspection Every 500 service hours or at least every 6 months
Cleaning of the fan and air filter
(Only on motors supplied with fan)
Depending on the level of local and environmental dirt
Re-greasing of the bearings
(Only on motors where it is necessary)
See regular lubrication label and re-greasing equation
(section 6.2.3 of this manual)
Replacement of bearings Replacement after 20,000 service hours
Table 22: Maintenance activities
NB
Damages to motor and fan (only on motors supplied with fan)
If the fan air filter is not cleaned correctly or sufficiently regularly, the motor may not be cooled correctly, which will lead to the
corresponding breakdowns.
Furthermore, the fan wheel must be in a good state of repair and perfectly clean; otherwise, it would be in permanent imbalance
when it rotates, leading to a breakdown.
NB
Damages to the motor bearings
If the motor bearings are not re-greased adequately or as regularly as required, the bearings may be damaged irreparably.
The bearings have a specific service life. When they have reached the end of their service life, they must be replaced by new
bearings that are equivalent to the originals. Otherwise, the motor may be seriously damaged.