Nanni Q2400 Series, Руководство пользователя

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90
S08 ALTERNATOR
1. Measure insulation resistance to ground.
2. The measured value of resistance to ground of all the
windings must be higher than 1MΩ.
NOTE!
If the value is lower than 1MΩ dry the windings with a
jet of hot air at 50-60°C. Direct the jet of air into the air
intakes and exhausts of the alternator.
Verification of correct alternator operation
Type of intervention Operator
PPE to wear Periodicity
Every 2500 hours of use
Materials and equipments
Workshop tools
Check whether the alternator operates regularly without
noises or anomalous vibrations.
In presence of noises and/or vibrations, check:
• The balancing of the rotor.
• The state of the alternator bearings. If necessary
replace them (Call NANNI Dealer).
• The alignment of the couplings.
• The potential presence of stresses in the heat
engine.
• The potential presence of stresses in the anti-
vibration supports.
• The functional data (see the nameplate of the
alternator).
Tightening torque check
Type of intervention Operator
PPE to wear Periodicity
Every 2500 hours of use
Materials and equipments
Workshop tools
DANGER!
Disconnect the alternator from the power supplies. The
drive engine must be off and unplugged from its power
supplies.
1. Check the bolt tightening (see paragraph 9.6
“Tightening torques”).
2. Check the electrical connections.
Alternator exterior and interior cleaning
Type of intervention Operator
PPE to wear Periodicity
Every 15 days
Materials and equipments
Pressurized air.
Clean with pressurized air.
NOTE!
It is strictly forbidden to use any kind of high-pressure
water jet cleaners and detergent liquids. The standard
protection rating of the alternator is IP23 and therefore by
using liquids anomalies or even short circuits may occur.