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OM-2065 / Operation and Maintenance Manual
90SB51 / Spec. 7015-3 / Frequency Converter
i. Check to be sure that all fans are operational and do not exhibit excess bearing wear.
The unit contains 6 fans: one on the card cage, one under each of the four inverter sections in the
front of the unit, and one under the input rectifier assembly in the back of the unit
3. Service Information and Factory Repair
Questions concerning the operation, repair, and/or servicing of this equipment should be directed to the
Service Department of Hobart Brothers Company (See Introduction, page 1) . When making such an
inquiry, be sure to provide the service department with the model number, serial number, and
approximate date of receipt of the equipment.
If it is deemed necessary to return this equipment to the factory for servicing, contact the service
department for authorization. It is often unnecessary to return a failed piece of equipment since this
equipment uses plug-in type assemblies throughout its systems. Replacement assemblies for systems
covered by this manual are usually in stock at the factory and available for immediate shipment.
For details on the warranty which covers this equipment, refer to the warranty statement in the rear of
this manual or contact the Service Department (See Introduction, Page 1) .
4. Component Torque Values
When certain components are replaced, in order to avoid damaging the component(s), the following
torque values must be observed:
PART NO.
ITEM
408501
Rectifier
280965
Power Module
Chapter 2-1
Page 2
Mounting
Screws
INCH-LBS
45 - 50
26 - 30
Component Torque Values
Figure 1
Electrical Connection
CM-KG
INCH-LBS
52 - 58
90 - 100
30 - 35
26 - 30
Screws
CM-KG
104 - 115
30 - 35
Nov 01/90
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