Machine Monitoring System
The machine monitoring system is an electronic monitoring system that continuously watches machine systems.
The system includes the following devices: a main display module, various switches and sensors, an action lamp
(Figure 1, Item 7), an action alarm, and a quad gauge module (Figure 1, Item 1).
The main display module is the controller of the system. This module receives information from switches, sensors
and other electronic controls. Information is sent through the data link communication circuit. The main display
module processes all information, and will then activate various outputs for the following displays:
display area of upper display module (Figure 1, Item 4)
display area of lower display module (Figure 1, Item 6)
quad gauge module (Figure 1, Item 1)
action lamp (Figure 1, Item 7)
Displayed components show condition of machine systems. The operator can also obtain system diagnostic
The three modules which constitute machine monitoring system have the following characteristics:
1. Upper Display Module.
a. A digital display area (Figure 1, Item 4) is provided, and shows engine speed and gear indicator. The
display area contains 10 indicators (Figure 1, Item 2).
b. Ten different indicators (Figure 1, Item 2) may be shown in upper display area. Indicators are engine oil
pressure, charging system, inlet manifold temperature, fuel level, parking brake, three bi-directional shift
indicators, auto kick down indicator, and hydraulic lockout.
2. Lower Display Module (Figure 1, Item 6).
a. A digital display area (Figure 1, Item 6) is provided and has three modes: Service Meter mode, Travel
Distance mode, Service Code mode. The information for the quad gauge module can be shown on the
display. The operator selects the system information that is shown in the display area (TM 5-2410-241-10).
b. Service Meter mode shows machine operational hours. SERV CODE will display when there is an active
service code while in this mode.
Travel Distance mode shows total distance of travel, total distance of travel in forward and total distance of
travel in reverse. SERV CODE will display when there is an active service code while in this mode.
d. Service Code mode shows diagnostic codes to alert the operator that an ECM detected fault is active. All
active and logged diagnostic codes will be displayed in order. SERV CODE will display when the
diagnostic code is an active diagnostic service code.
e. Six different indicators may be shown in lower display area (Figure 1, Item 5). Indicators shown are air filter
restriction, powertrain oil filter by-pass, implement system alert, engine system alert, transmission system
alert, and a brake system alert.
3. Quad Gauge Module (Figure 1, Item 1). Four electronic gauges indicate condition of machine, and indicate the
following: engine coolant temperature, transmission oil temperature, hydraulic oil temperature, and fuel level.
An external action lamp (Figure 1, Item 7) and an action alarm indicate the severity (warning category) of a
The machine monitoring system performs a self-test of the instrument cluster each time start switch (Figure 1,
Item 3) is set to ON position. During self test, all gauge needles are set to middle position, then minimum position,
then will quickly and smoothly move to maximum position, and return to current actual value. All icons and
segments will illuminate, all indicators will illuminate. The duration of the self-test will take approximately three
seconds, and the action alarm will activate at the beginning of the self-test for approximately one second. Upon
completion of the self-test the machine monitoring system will enter normal mode.