62-11863
3-24
g. Battery Voltage
Provisions are made to sense when the battery is good. A good battery is defined as having 13.4 volts at 75°F
(24°C). This condition is used to allow shut-off of the diesel engine.
If the battery voltage falls below 10 volts during glow cycle, the starter will not engage and the start sequence will
continue. This is considered a failed start. The start sequence is repeated until the unit starts or three consecutive
start attempts have failed.
h. Oil Pressure Signal
When the Oil Pressure switch is closed, it indicates the engine is running and prevents engagement of the starter
motor when operating in Auto mode.
i. Maximum Off-Time
A keypad selectable feature is provided that will cause the engine to be started 30 minutes after the engine has
stopped regardless of the box temperature.
j. Start-Stop Conditions
Unit will not cycle off if:
• Engine coolant temperature is less than 122°F (50°C)
• Battery is less than 13.4 volts
Unit will restart (overriding minimum off-time) if:
• Battery drops below 11 volts
• Coolant temperature drops below 34°F (1°C)
If the unit cannot cycle off, it will operate normally in Continuous mode. If all temperature probes fail and the set
point is less than or equal to 10°F (-12°C), the unit will not shut down.
3.16 PRE TRIP INSPECTION
3.16.1
Before Starting Engine
1. Drain water and sediment from fuel tank sump and then fill tank with diesel fuel.
2. Check radiator coolant level. Add pre-mixed 50/50 permanent antifreeze-water as required.
3. Check evaporator and condenser coil for cleanliness.
4. Check engine lubrication and fuel filter, oil lines, and connections for leaks. Tighten connections and/or
replace gaskets.
5. Check compressor and receiver service valve position (backseat position).
6. Check unit compartment and remove any foreign material.
7. Check engine oil level.
8. Check V-belts for proper tension, fraying or cracks. Adjust belt or replace.
WARNING
!
Inspect battery cables for signs of wear, abrasion or damage at every pre trip inspection and
replace if necessary. Also check battery cable routing to ensure that clamps are secure and
that cables are not pinched or chafing against any components.
9. Check battery terminals and electrical connections for cleanliness and tightness.
Table 3–9 Battery Voltages
Message Display
Voltage Level
Description
LOW BATT AL4
At 10
Unit shuts down except during cranking
11 to 14.5
Considered normal voltage
HI BATT AL5
17 or more
Unit shuts down
Summary of Contents for SUPRA 950Mt
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