HARNESS AS-DASH 1517602 - Caterpillar

Illustration 1 g01105419
Photo pickup and magnetic base on the fan guard (typical example)
Place photo pickup into the holder on the magnetic base. Tighten the screw. Attach the magnetic base to the fan guard assembly. Refer to Illustration 1.
When the reflective tape and the photo pickup are in alignment, the LED indicator (red light) will come on. Position the photo pickup accordingly. Note: When you start the engine, vibration of the machine may cause the photo pickup to become misaligned. Adjustment of the magnetic base may be necessary in order to realign the photo pickup.Testing and Adjusting Fan Speed
Table 2
854K Hydraulic Fan Speeds (1)
844K Standard
Altitude Target Max Fan Speed
240 m (787 ft) 950 rpm
500 m (1640 ft) 970 rpm
1000 m (3281 ft) 1000 rpm
1500 m (4921 ft) 1020 rpm
2000 m (6562 ft) 1060 rpm
2500 m (8202 ft) 1090 rpm
3000 m (9842 ft) 1130 rpm
3500 m (11483 ft) 1160 rpm
4000 m (13123 ft) 1200 rpm
4500 m (14764 ft) 1240 rpm
5000 m (16404 ft) 1290 rpm
(1) The hydraulic fan speed is at high RPM. Calibration of the Hydraulic Fan System is done through Caterpillar Electronic Technician.
Connect Caterpillar ET to the machine. The ET connector is located on the control panel on the right side of the cab.
Turn the engine start switch to the ON position.
Open the ET software program.
When ET has started, start the engine. Run the engine at high idle. Warm the hydraulic oil to normal operating temperature.
Illustration 2 g01501721
Typical example
Select "General Data" under "C32 854K". Select "Calibrations" from the "Service" menu. Select "Engine Cooling Fan Calibration".
Illustration 3 g01501723
Typical example
When the dialog box appears on the screen, read the information in the dialog box. In order to continue with the calibration procedure, select the "OK" button.
Illustration 4 g01443647
Typical example
When the dialog box appears on the screen, two checked boxes appear. Select the "Begin" button in order to start the procedure. The calibration procedure for the minimum fan speed will appear first on the screen.
Illustration 5 g01501726
Typical example
In order to begin the test for the minimum fan speed, select the "Next" button. Follow the directions that are on the screen. After the first box has been checked, monitor the multitach for the fan speed. Use increment button (2) in order to increase the current. An increase