Operator’s Manual Serial number range
GTH-4518 ER GTH-4020 ER
From serial n.: 20112 To serial n.: 20300
GTH-6025 ER
From serial n.: 19309 To serial n.: 24410
From serial n.: 20118 To serial n.: 21643
With Maintenance Information
Second Edition First Printing Part No. 57.0009.0404