DONATI SOLLEVAMENTI S.r.l. - Via Quasimodo,17 - 20025 Legnano (MI) - Tel. 0331 14811 - E: [email protected]
41
6.3.3 Checking the operating efficiency of parts and components
The Manufacturer recommends strictly observing the following instructions for individual parts
on the “DGT” drive units or endcarriages:
Quarterly efficiency control on the self-braking travelling motors:
•
Clean the drive motor on the swinging gearmotor, eliminating any dust from the frame, which can otherwise
hinder its regular cooling function; check to make certain the vent openings are not clogged.
•
With a nominal load, check for abnormal noises (chaffing, rasping sounds).
•
Check to make certain the temperature of the frame does not exceed 110°C. If it does, look for causes and
verify the type of operation the gearmotor is subjected to (see point 6.7 “Troubleshooting Guide”).
•
Verify the voltage and power absorption, comparing them with the nominal values reported on the motor’s
identification nameplate (see also motor specifications at point 2.3.7 - page 19 of this manual).
IN CASE OF A MALFUNCTION:
•
It is forbidden to intervene with corrective maintenance inside the motors;
•
Any extraordinary maintenance operation on the self-braking travelling motors
must be conducted by the
DONATI SOLLEVAMENTI S.r.l.
technical servicing
department or by its authorized technicians.
Check the efficiency of the self-braking travelling motors every three months:
•
Check to make certain the brake unlocks correctly with each intervention, and the rotor does not remain braked
and/or chaffing is detected.
•
With a nominal load, control braking spaces, times and effectiveness and make certain they are the desired
settings, i.e. those set during the setup phase. If this is not the case, cut off the power supply and check for
wear on the surface of the brake lining and brake block, ascertaining any irregularities.
•
Where necessary, make adjustments to the brakes and/or replace them, as outlined in sections 6.4 ”Settings”
and 6.6 “Replacements”
•
Replace the brake if braking spaces, times and effectiveness are inadequate, even
after having made adjustments.
IN CASE OF IRREGULARITIES:
•
It is forbidden to intervene with corrective maintenance on the brakes;
•
Any extraordinary maintenance operation on the brakes must be conducted by
the
DONATI SOLLEVAMENTI S.r.l.
technical servicing department or by its
authorized technicians.
Check the efficiency of the swinging reducers on a monthly basis:
•
Check noise levels on the drive swinging reducers
to make certain there are no
variations in intensity.
Vibrations or excessive noise can reveal wear on the teeth or a malfunctioning bearing.
•
Check for lubricant leakage.
CAUTION:
•
The swinging reducers are lubricated for life and do not require any maintenance
nor lubricant refilling.
IN CASE OF IRREGULARITIES:
•
It is forbidden to intervene with corrective maintenance on the reducers;
•
Any extraordinary maintenance operation on the reducers must be conducted by
the
DONATI SOLLEVAMENTI S.r.l.
technical servicing department or by its
authorized technicians.
