PLUG 1175899 - Caterpillar

Testing and Adjusting Fan Speed
Table 2
854K Hydraulic Fan Speeds (1)    
    854K Standard     854K High Ambient    
Altitude     Target Max Fan Speed     Target Max Fan Speed    
240 m (787 ft)     950 rpm     1100 rpm    
500 m (1640 ft)     970 rpm     1120 rpm    
1000 m (3281 ft)     1000 rpm     1150 rpm    
1500 m (4921 ft)     1020 rpm     1190 rpm    
2000 m (6562 ft)     1060 rpm     1220 rpm    
2500 m (8202 ft)     1090 rpm     1260 rpm    
3000 m (9842 ft)     1130 rpm     1300 rpm    
3500 m (11483 ft)     1160 rpm     1350 rpm    
4000 m (13123 ft)     1200 rpm     1400 rpm    
4500 m (14764 ft)     1240 rpm     1420 rpm    
5000 m (16404 ft)     1290 rpm     1420 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
Select "General Data" under "C32 854K". Select "Calibrations" from the "Service" menu. Select "Engine Cooling Fan Calibration".
Illustration 3 g01501723
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
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
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 in current will decrease the fan speed. Use