On a G series Cat wheel loader is there a way to adjust the boom/bucket control switches without using Cat software? I'm told that to change a switch you need the Cat computor to do the adjustment. Does anyone know another way?
I don't think the G series requires a computer to calibrate the switches, what machine, and serial number would help.
It's a 966G, 9RS serial number. Don't have the complete number here.
To replace the hydraulic controls in the cab you don't need Cat ET. However, if there is a problem with codes comming up, it is possible that the position sensor will require calibration, which can be carried out with 4C-8195 control service tool, which connects to the service connector in the fuse box. (right rear corner of cab) 4C-8195 is only a switch box.
Please be a bit more clear what exactly you're trying to do. I'm not 100% sure I understand your original post. Brain fade ...... it's Friday ....
The boom/bucket controls in the cab are electric switches. One switch needs to be replaced and I've been told that you need the Cat software to properly adjust them.
Ah-ha. You mean the Lift/Tilt control lever position sensors located in the box under the control levers themselves. If your machine is only 2 functions (Lift & Tilt) then it will be either a 106-4437 or a 161-8979 Sensor Group. In the strict sense of the word replacing one of these sensors requires Cat ET to correctly calibrate the signal of the new sensor that serves as an input to the Implement ECM. The machine will not quit working if you don't calibrate it after replacing the sensor, but you may find that the control response to a certain amount of lever movement may be "off" a tad from what you expect. I would plan on getting the calibration done as soon as it's practical to do it, but you don't necessarily need to do it at the same time as replacing the sensor. AFAIK these sensors can't be calibrated using 4C-8195 Click Box Tool. Are you sure the dodgy sensor has actually packed up completely..? Try removing it, spray liberally with contact cleaner, & air dry before refitting. Don't be tempted to try moving it with a screwdriver, they have plastic pegs inside them that function as the limits of sensor angular movement and the pegs are very easy to break.
Yes .. Same as the H machines ... Need a laptop to calibrate the position sensors before the kickouts can be set .. You can set the kickouts in the cab.
Originally when the OP mentioned "switches" I thought he was referring to the kickouts. AFAIK unless the installation of a new position sensor throws an FMI13 (Calibration Required) Diagnostic Code you should still be able to set the kickouts without needing to calibrate the sensor first, because it's the signals from the Lift Arm & Tilt Linkage angle sensors that drive the inputs for the kickouts.
Yeah i know you did mate. In my experience 9/10 times the sensor will need a calibration. Once they get a few hours on them they need calibration now and then.
100% agree. We have medium-size wheel loaders (950/962) in addition to our 994s. We put a step in the 500-hour PM to do a re-calibration of all the lever position sensors and the implement control proportional valve solenoids. If the machine's warm it takes less than 5 minutes. We also download all the Events from every ECM on the machine at the same time. Basicallly we do a re-cal of the postion sensors & proportional solenoid valves on every machine we have with this type of control during PMs. The frequency with which we do it depends on past experience of the implement system's tendency to "wander" from the previous calibrations. For example we do 834Hs every 250 hours just to avoid calls from operators of erratic implement response. I have never really got to the bottom of why on that particular model the controls go out of whack so fast.