TM-9-2350-247-20-1 Unit Maintenance Manual Volume 1 M548A1 M548A3 Tracked Cargo Carrier Download
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TM 9-2350-247-20-1 INTRODUCTION STE/ICE–R (SIMPLIFIED TEST EQUIPMENT FOR INTERNAL COMBUSTION ENGINES-REPROGRAMMABLE) PROCEDURES—Continued 0107 00 Vehicle Test Meter (VTM) The VTM is the diagnostic meter of STE/ICE–R used for testing electrical and mechanical components of the M548A1 or M548A3 engine. The VTM consists of three switches, a readout display, flip cards, and four cable connectors. a. SWITCHES. The three switches are a PUSH ON/PULL OFF switch, TEST SELECT switch and TEST button. The PUSH ON/PULL OFF switch is used to control power to the VTM from the power source. The TEST SELECT switch are two ten-position switches used to select the test to be performed. The TEST button has two functions: (1) when pressed and released, it initiates selected test; (2) when pressed and held, it initiates an offset test. b. READOUT DISPLAY. The readout display gives five different types of messages during testing and up to a maximum of four characters per message. The readout display messages can be found on (WP 0107 00). The types of messages are: • error, • status, • numerical, • prompting, and • confidence test error. c. FLIP CARDS. The flip cards, attached to the front of the VTM, provide a quick but limited reference for the operator. These flip cards list test numbers, messages, and some procedures. Test limits are also provided for some vehicles. 0107 00-2