HOSE AS 2501655 - Caterpillar

the following function check when the TPMS is installed, and the TPMS is setup. Also, the TPMS must be calibrated.
Verify that the suspension cylinders are properly charged.
Turn on the TPMS. The POD readout will perform a display test for 2 seconds then display the system settings in sequence. Then the POD will go blank. The POD and PMC transmit LEDs' and receive LED's should be on for the total 2 second period. Note: Step 2 contains the TPMS start-up self test. The operator should perform the start-up self test on a daily basis. This should be done to verify that the TPMS is functioning properly. No faults should be displayed on the POD at this time.
To perform a light test, depress the Test/Set switch on the POD. The readout should go blank for .5 seconds, and then display for 1.5 seconds. This is followed by the total cycles and the total weight hauled. The POD and PMC LED's along with the external load indicator lights should come on when the Test/Set switch is depressed.
After successful completion of Steps 1, 2 and 3 take the truck through a complete load cycle. Verify that the POD and external lights work. There should be no faults displayed on the POD during or after completion of the cycle. The steps for executing one complete load cycle are listed below.
Drive the truck to the site where loading is to be done. Come to a complete stop. Place the transmission in NEUTRAL and set the parking brake before loading begins.
Load the truck. To see if the POD is operating correctly, go to the Payload Operator's Display Operation section in this manual. To see if the external load lights are operating correctly, go to the Truck Payload Measurement System Operation section in this manual.
Drive the truck to the dump site and dump the load. Verify that the weight shown by the POD is cleared from the display a few seconds after the bed raise lever is actuated.
Optional: An accuracy check using certified scales may be done as part of the normal functional check procedure. If scales are used, the weight of the truck empty should be subtracted from the weight of the truck fully loaded. The difference should agree with the POD readout within 5%. Note: All portable and platform scales are subject to some error, which may vary with different load ranges. Unless portable or platform scale accuracy can be verified by calibration with a known weight, the readings from that scale should be considered inaccurate by an unknown amount. The fact that the platform or portable scale returns to zero when unloaded is not an indication of its accuracy at high loads. Complaints of TPMS inaccuracy, as a result of a weight study, are not conclusive unless the portable or platform scale can be calibrated against an independent standard over the load ranges encountered in the study.