Preventive And Scheduled Maintenance / Part Replacement; Preventive Maintenance; Parts Replacement - Toshiba 4200FA User Manual

8.0 Preventive and Scheduled Maintenance / Part Replacement

8.1

Preventive Maintenance

Toshiba's 4200FA Uninterruptible Power Systems have been designed to provide years of
trouble-free operation requiring a minimum of preventive maintenance.
The best preventive measure that the UPS user can take is to keep the area around the unit,
particularly the air inlet vents, clean and free of moisture and dust accumulations. If the
atmosphere of the installation site is very dusty, use a vacuum cleaner to periodically
remove dust accumulations from the system. Schedule authorized Toshiba service centers
to perform internal parts inspections annually.
CAUTION
CAUTION
8.2

Parts Replacement

The following list shows intervals for periodic maintenance and replacement of certain UPS
parts.
1) Batteries: VRLA batteries are maintenance free with respect to electrolyte
Quarterly Maintenance
A. Visual Checks
B. Check battery temperature at the negative terminal.
C. Measure and record the system float charging voltage.
D. Measure and record the float charging voltage of each unit.
Semi-Annual Maintenance
A. Repeat the quarterly checks.
B. Perform a 10-second high rate (e.g., 100 A) load test on the individual
C. Test for the purpose of trending the battery over time (optional).
D. Re-torque all battery connecting hardware (if applicable).
E. Perform battery connector resistance checks.
2) Aluminum electrolytic capacitors: Replace once every 5 years.
3) Fuses: Replace once every 7 years (see output fuse rating table below).
4) Cooling fan: Replace once every 3 years.
T O S H I B A
Before performing any maintenance the technician should be
familiar with and follow the important safety instructions located
on page 10.
Proper maintenance of the battery system of this unit by a qualified
service technician is essential to the safety and reliability of your UPS
system. Refer to service manual.
only. The charging voltage, temperature, performance and connection
resistance must be monitored periodically. Necessary corrective actions must
be made in order to assure safe reliable power is supplied by the UPS. The
aforementioned items affect the life of batteries, so replacement should be
once every 3 to 5 years as a minimum. All of the batteries must be replaced at
the same time.
1) Leakage.
2) Corrosion on positive terminal.
batteries.
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