- Compact Track Loader:
- 279C (S/N: MBT1-UP)
- Multi Terrain Loader:
- 277C (S/N: KCC1-UP; JWF1-UP)
- Skid Steer Loader:
- 246C (S/N: JAY1-UP)
- 289C (S/N: JMP1-UP)
- 299C (S/N: JSP1-UP)
- 287C (S/N: MAS1-UP)
- 297C (S/N: GCP1-UP)
- 256C (S/N: DWS1-UP)
- 262C (S/N: MST1-UP)
- 272C (S/N: RED1-UP)
The 346-1575 Machine Software Gp is used on all machines that are listed above. The 346-6689 Monitor Software Gp (GRAPHICAL DISPLAY MODULE) software is used in conjunction with the 346-1575 Machine Software Gp for machines that are equipped with the optional AMICS right hand display. Both software groups are flashed by using WinFlash and Caterpillar Electronic Technician. Additionally, the software is available for downloading on SISWeb. The new software improves the response of the machine by providing three selectable modes. These modes are detailed below.
Note: Refer to SISWeb for the latest version of the software.
Standard Hystat Response - Indicated by one bar
Intermediate Hystat Response - Indicated by two bars
Maximum Hystat Response - Indicated by three bars
Note: For machines that are equipped without the Advanced Machine Information Control System (AMICS), your Caterpillar dealer can select appropriate setting through CAT ET. The modes can not be adjusted by the operator.
Note: As you progress through each of the modes above, the machine will function more aggressively. Drive the machine in an open area in order to become more familiar with the new operating characteristics of the machine.
Standard Hystat Response
Changes have been made in order to improve the setting for the Standard Hystat Response versus the original hystat setting from the factory. These changes improve the deceleration rate of the hystat controls. These changes also improve the steering. This is the Factory Setting for all machines with AMICS or without AMICS.
Intermediate Hystat Response
Changes have been made to this setting that improves the response of the forward and reverse drive. A more aggressive forward and reverse drive is now achieved. Additionally, steering response has been significantly improved. It is possible for the wheels to lift off the ground slightly with step commands in the forward direction. Additionally, the machine will stop more quickly. The lag between the command and the reaction of the machine is less than the lag with the standard setting due to the quicker response of the steering. This setting gives the operator a greater consistency to the feel of the drive controls for a B-Series machine versus C-Series machine.
Maximum Hystat Response
Changes have been made to this setting that improves the response of the forward and the reverse drive. This setting gives the operator the most aggressive forward and reverse drive. Additionally, the steering response has been significantly improved in this setting. The wheels will raise off the ground with each step command when the machine is in the forward direction. Additionally, the machine will stop very quickly. The lag between the command and the reaction of the machine has been significantly improved. This mode is intended for operators with a level of skill that will utilize the highest level of response.