Front Air Psi Tell-Tale; Rear Air Psi Tell-Tale; Water Temperature Tell-Tale; Oil Pressure Tell-Tale - MCi J4500 Operator's Manual

4-in-1 Gauge
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Figure 8. 4 in 1 Gauge tell-tales

1. Front Air PSI tell-tale

The low air warning tell-tale illuminates when the air
pressure drops below the pre-determined level.
In the event of a low air warning, stop the coach and
determine the cause of air loss before proceeding.

2. Rear Air PSI tell-tale

The low air warning tell-tale illuminates when the air
pressure drops below the pre-determined level.
In the event of a low air warning, stop the coach and
determine the cause of air loss before proceeding.

3. Water Temperature tell-tale

Tell-tale illuminates when the coolant temperature is
above normal. Obtain service as soon as possible.

4. Oil Pressure tell-tale

Tell-tale illuminates when the oil pressure is too low.
Low air pressure will illuminate the LOW AIR
lamp and a buzzer will sound, indicating that
the air pressure is too low. Stop coach and
determine reason for pressure loss.
DO NOT operate the coach under 100 psi air
pressure.
June 2016
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Front ( PSI ) Air Pressure - The secondary air
pressure gauge reads front brake air reservoir
pressure in pounds per square inch or kilo-pascals. If
the pressure is low during start-up, the LED lights
and a buzzer sounds. The alarms stop when the
pressure builds up to operating level. Do not operate
the coach under 100 psi (690 kPa).
Rear ( PSI ) Air Pressure - The primary air
pressure gauge reads rear brake air reservoir pressure
in pounds per square inch or kilo-pascals. If the
pressure is low during start-up, the LED lights and a
buzzer sounds. The alarms stop wh en the pressure
builds up to operating level. Do not operate the coach
under 100 psi ( 690 kPa ).
If a low air warning activates during driving,
stop the coach immediately and find the
cause of the air loss. If brake reservoir
pressure drops significantly, the parking
brakes apply automatically.
Oil Pressure - The oil pressure gauge reads
engine oil pressure in pounds per square inch or kilo
Pascals. Oil pressure should be between 50 - 70 psi
( 345 - 483 kPa ). The LED lights when the oil
pressure is too low.
Coolant ( Water ) Temperature - The coolant
temperature gauge reads engine coolant temperature
in degrees Fahrenheit or Celsius. The normal
operating range is 160-226F ( 71-108C ). The LED
lights when the temperature is above normal. Obtain
service as soon as possible.
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