CONTROLS AND INSTRUMENTS
Battery Equalizer Indicator
Illuminates when the battery
voltage is not equalized.
Note :
If the battery equalizer indicator
illuminates, make sure that the battery equalizer
circuit breakers are reset before requesting
breakdown assistance. Wait 15 minutes after
setting breakers to allow batteries to equalize.
The breakers are located in the main power
compartment.
Low Air Conditioning (A/C) Pressure
Indicator
Illuminates when the A/C system
pressure is too low. If the A/C
pressure is too low, the
compressor clutch is disengaged
and the fan is turned
OFF
.
Note :
In cold weather, the low A/C pressure
indicator may light up. This is not an abnormal
condition.
High A/C Pressure Indicator
Illuminates when the A/C system
pressure is too high. If the A/C
pressure is too high, the
compressor clutch is disengaged,
but the fan remains activated.
Note :
In hot weather, the high A/C pressure
indicator may light up. This is not an abnormal
condition.
Gauges
Note :
Do not refer to dashboard
instruments during adjustment procedures. Use
calibrated gauges.
Engine Oil Pressure Gauge
Indicates engine oil pressure.
The normal reading should
be between 50 and 70 psi
(345 - 480 kPa) at 55 mph
(90 km/h). A low oil pressure
indicator LED (bottom right
corner) illuminates when the
oil pressure drops below 50 psi (345 kPa).
Caution :
Loss of oil pressure may cause
severe engine damage. If low-oil pressure LED
illuminates, park the vehicle safely and stop the
engine immediately. Request service
assistance.
Engine Coolant Temperature Gauge
Indicates the operating
temperature of the engine
coolant. The normal reading
should be between 190°F and
215°F (88°C to 102°C).
Turbo Boost Pressure Gauge
Indicates
turbo boost
pressure in
psi.
Reading
depends
on engine
rpm and load conditions.
Tachometer
Indicates the operating
speed of the engine in
hundreds of revolutions
per minute (rpm x 100).
The tachometer serves
as a guide for gear
shifting and helps to
prevent engine over-
speeding when driving downhill with the
JACOBS engine brake operating. The
maximum allowable engine speed is 2,450 rpm.
Speedometer
Indicates the motorcoach
speed in miles per hour
(mph) and kilometers per
hour (km/h).
The digital odometer
registers the distance
traveled in miles or in
kilometers (units are driver selectable).
3-15