37
10. Unscheduled Tasks
Task 10.1 – Inspection and diagnostic
OPERATING INSTRUCTION AND TECHNICAL REQUIREMENTS (TR) INSTRUCTIONS / EVIDENCE WHEN DEVIATIONS FROM TR
1. Remove the lid and check that the gasket is fully adhered
to the lid.
Any damage found, record defect and replace in accordance
with the Repair Task 10.6.
2. Inspect battery container and lid for any damages, signs of dents,
cracks, splits, overheating, short circuits, melting, dark spots and
tarnish.
Any damage found, record defect and replace in accordance
with Repair Task 10.6.
3. Inspect the main connector for any signs of damage caused by
arcing, faulty connection, corrosion, loose parts and cracks in the
connector casing.
Any damage found, record defect and replace in accordance
with Repair Task 10.5
CAUTION
Mineral salts from spilled electrolyte are caustic. When cleaning
batteries and cells wear goggles and gloves; in addition wear dust
mask and ear protection when applying compressed air for cleaning;
the compressed air shall have a pressure below 3 bar.
4. Clean the top of the cells with a plastic brush, and remove any
remaining deposits with an oil-free compressed air source.
5. Tighten and torque the upper nuts as detailed in section 1.6.2,
table 1.
6. Inspect visually harnesses with temperature switches, thermistors,
thermocouples, and for loose wiring, cracks, dents, connector pins
in place and any damages.
Any damage found, record defect and replace in accordance
with Repair Task 10.4
7. Measure the insulation resistance with a MΩ-meter at 250 V DC
between the + pin of the battery connector and the battery case.
Requirement: ≥0.5MΩ.
If R ≤ 0.5 MΩ , continue at Task 7.3 step 12 (Annual
maintenance)
8. Measure and record battery and cell voltages.
9. Undo the vents and keep them aside on the cells mouth.
ATTENTION
Do not top up the cells at this step.
10. Connect the battery to the charge / discharge unit.
ATTENTION
Do not use mercury thermometer.
11. Check the battery temperature. Requirement: below 35°C.
Soak the battery to ambient room temperature, which can take
up to 8 hours.
12. Discharge the 24 V battery at I
1
for to 20 V.
Requirement: The voltage of each cell after 48 minutes must be equal
/ greater than 1.0V.
If the requirement is not met, then continue with Task 8.1,
“Reconditioning.”
The document reference is online, please check the correspondence between the online documentation and the printed version.
To Next Page
Loading...
Need help?
General
