Caterpillar 4C-8195 Control Service Tool
This document provides information on the Caterpillar 4C-8195 Control Service Tool, its operation, and calibration procedures for various Caterpillar machine models.
Overview of the 4C-8195 Control Service Tool
Illustration 1 shows the 4C-8195 Control Service Tool, which is used for machine diagnostics and calibration. The tool features three primary control switches:
- (1) Mode switch: Used to enter calibration modes and select functions.
- (2) Clear switch: Features "+" and "-" positions, used for adjusting values within submodes and navigating component lists.
- (3) Scroll switch: Used to scroll through submodes.
The tool is connected to the machine via cables. A wiring diagram illustrates the connections between the tool's switches and a multi-pin connector, which interfaces with the machine's ECM (Electronic Control Module). The connections include:
- Mode switch connection to "MODE TRANS-2".
- Clear switch connection to "CLEAR".
- Scroll switch connection to "SCROLL" and "SCROLL ACTIVE".
These wires connect to a connector with pins labeled "1 AB/1", "2", "3", "4", and "5", facilitating communication with the machine's systems.
Caterpillar Monitoring System Display
Illustration 2 depicts a typical Caterpillar monitoring system display module. The display area shows various machine parameters and status indicators. Key elements include:
- Display area (4): Shows numerical data, units (e.g., °C, KM, LITER), and status codes.
- Diagnostic code indicator (5) ("SERV CODE"): Alerts the operator to diagnostic codes.
The monitoring system display includes several indicator icons:
- ⚡️ Battery Status
- ⛽️ Fuel Level
- ?️ Engine Coolant Temperature
- ?️ Engine Oil Pressure
- ? Transmission Oil Level
- ⚠️ Brake System Pressure
- ⚙️ Transmission Oil Pressure
- ? Air Cleaner Restriction
- ? Hydraulic Oil Level
- ?️ Parking Brake Engaged
- ? Check Engine Light
- ⚙️ Service Required Indicator
Calibration Modes
Table 2 outlines the available calibration modes accessible via the 4C-8195 Control Service Tool and the Caterpillar Monitoring System. These modes are grouped into general categories:
| Parking Brake Status | Submode (1) Number | Submode Description |
|---|---|---|
| Steering/Braking Calibration Mode Mode No. 6... , D5N, D6N, D6R Series II, D7R Series II, 572R Series II, D8R Series II, D10R, and D11R Mode No. 5... D5M, D6M, D6R, and D7R |
01 | Set Application |
| 02 | Left Brake Adjustment | |
| 03 | Right Brake Adjustment | |
| 04 | Left Steer Clutch High Pressure Adjustment | |
| 05 | Right Steer Clutch High Pressure Adjustment | |
| 06 | Left Brake Low Pressure Adjustment | |
| 07 | Right Brake Low Pressure Adjustment | |
| 08 | Left Steer Clutch Low Pressure Adjustment | |
| 09 | Right Steer Clutch Low Pressure Adjustment | |
| Transmission Calibration Mode Mode No. 7... D5N, D6R Series II, D7R Series II, 572R Series II, D8R Series II, D10R, and D11R Mode No. 6... D5M, D6M, D6N, D6R, D7R and 561N |
20 | Set Forward High Speed Lockout |
| 21 | Set Reverse High Speed Lockout | |
| 22 | Transmission Direction Lever Adjustment | |
| 31 | Clutch 1 Engagement Calibration | |
| 32 | Clutch 2 Engagement Calibration | |
| 33 | Clutch 3 Engagement Calibration | |
| 34 | Clutch 4 Engagement Calibration | |
| 35 | Clutch 5 Engagement Calibration | |
| 40 | Clutch Fill Calibration | |
| Component Data Display Mode Mode No. 8... D6R Series II, D7R Series II, D8R Series II, D10R, and D11R Mode No. 7... D5M, D6M, D6R, and D7R |
None | Component Data |
(1) Only the submodes required for a particular machine will appear. Submodes 10 through 19, 23 through 30, and 36 through 39 are not used at this time.
Using the 4C-8195 Control Service Tool
Service personnel use the 4C-8195 Control Service Tool to access calibration submodes.
To Enter A Mode:
Press and hold the mode switch (1). Release the mode switch when the desired mode number from the chart is shown in the display area (4).
To Scroll Through The Submodes:
Press and hold the scroll switch (3). Release the scroll switch when the correct number for the submode is being shown.
To Adjust A Value Within A Submode:
The "+" and "-" positions of the clear switch (2) are used to change the value within a submode.
To Scroll Through Component Identifiers (Component Data Display Mode):
Use the "+" and "-" positions of the clear switch (2) to move through the component list.
Component Data Display Mode Details
The component data display mode is available for specific machine models:
- Mode number 7: D5M, D6M, D6R, D7R, and 572R
- Mode number 8: D6R Series II, D7R Series II, D8R Series II
This mode displays data received by the ECM from power train components. Each component is identified by a unique Component Identifier. The identifying number appears for 2 seconds, followed by its parameter value. Components are listed numerically by identifier.
Data display formats include:
- Position sensor data: displayed in "%" duty cycle.
- Temperature sensor data: displayed in °C.
- Switch data: displayed using "O" (Open) and "C" (Closed). For double-throw switches, the left character shows the normally open contact, and the right character shows the normally closed contact.
- Proportional solenoid currents: shown on a 0-255 scale (0 = no current, 255 = 1.25 Amperes).
- On/Off solenoid currents: displayed as "0" for OFF and "1" for ON.
Performing Calibrations With the Cat ET Service Tool
To perform calibrations, connect the Cat ET service tool, select the steering/braking/trans ECM, then select "Calibrations" from the "Service Menu" and choose the desired calibrations from the sub-menu.
Note on Differential Steering Tractors: Steering, clutch/brake pressure calibrations, and brake touch-up calibrations may not apply to differential steering tractors. For these machines, unselect all calibrations in these categories except for "Left Brake Low Pressure Calibration" and "Left Brake Touch-up Calibration". If other calibrations are performed, the Cat ET service tool may indicate a procedure failure, which can be ignored.
Once calibrations are selected, press the "Begin" key and follow the on-screen instructions.
Troubleshooting Calibration Failures: If a calibration fails using the Cat ET service tool, try performing the same calibration using the Caterpillar Monitoring System.
