Optional Equipment; Orientation; Description/Operation; General - Hobart 120CU20 Operation And Maintenance Manual With Illustrated Parts List

OM-2228 / Operation and Maintenance Manual
120CU20 / Series 500120 / 400 Hz. Generator Set
Chapter 1 Description/Operation.
Section 1

1) General.

The basic generator set covered in this manual, manufactured by ITW GSE Group, Hobart Ground
Systems is rated at 120 kVA and designed to produce and deliver 115/200-volt, 400 Hz, 3-phase AC
power to a parked aircraft or other load.
The number 500120 identifies the "model or series" of the GPU. The part number is followed by a
different dash number that separates the basic units available. Table 1 uses the part number to identify
the variations covered in this manual.
Part & Dash Number
500120-STD
500120-DLX
500120TR-STD
500120TR-DLX
Table 1: Series 500120 Generator Set Part Number Descriptions.
2) Optional Equipment - Appendix A.
Chapters 1 through 5 of this Operation and Maintenance Manual identifies only the "stripped down"
version of the 120CU20 generator set. A list of optional equipment that makes this manual unique to the
generator set that you have purchased, appears in Appendix A.
The body of this manual includes documentation for the DC option, also known as the Transformer-
Rectifier (T-R). Details for other options may be included in Appendix A.

3) Orientation.

For purpose of orientation, the radiator is considered to be at the REAR of the unit. The generator and
controls are at the FRONT. RIGHT and LEFT are determined by standing at the REAR end facing the
machine. Thus, the control box is mounted on the LEFT FRONT side of the unit.
October 15, 2013
Description.
Mounting
Trailer
Trailer
Trailer
Trailer
AC 28.5 VDC
Outputs Output
2 --
2 --
2 Yes
2 Yes
Fuel Tank
Stainless
Stainless
Stainless
Stainless
Chapter 1-1
Page 1