OM3237 02/10 Operation - Section 32 Operator Cab and Controls Page 32-23 During normal truck operation, the red LED digits on the VHMS controller will count from 1-99 continuously. When the key switch is turned OFF, the VHMS con- troller will remain on while it finishes processing inter- nal data and saves the recent data into permanent memory. When the data has been safely stored, the two digit LED display will turn off. This process could take up to three minutes to complete. If the 24V power is disconnected from the VHMS controller before it has completed its shut down procedure, the VHMS controller will lose all data gathered since the key switch was last turned on.
DO NOT disconnect battery power until the VHMS controller has completed the shutdown procedure and has turned the LED digits off. FIGURE 32-13. CENTER CONSOLE The Orbcomm controller transmits data through antenna (1, Figure 32-14) mounted on top of the cab. The antenna coaxial cable is routed through tube (2) to protect it from damage. If the antenna or coaxial cable is damaged, replace the parts . 1. Center Console 2. Data Store Button (Statex III and VHMS) FIGURE 32-12. VHMS COMPONENT LOCATION 1. Orbcomm Controller 2. VHMS Controller 3. LED Digits 4. Snapshot Light 5. VHMS Download Port FIGURE 32-14. ORBCOMM ANTENNA 1. Orbcomm Antenna 2. Tube