Isuzu Tilt Slide FYJ2000 Instruction Manual page 422

7-94
SERVICE AND MAINTENANCE
FYH model
3. Start the engine and allow it to idle.
The brake air systems are operating
normally if elapsed time to purge the
air dryer matches the chart.
Model
All models
The time taken before purging of the air
dryer may somewhat vary depending on
the temperature and other environmental
conditions. However, you should contact
the nearest Isuzu Dealer if air pressure
does not increase at all, the time taken
before reaching a proper pressure is
significantly different from that indicated
in the table, or the needles of the two air
pressure gauges indicate considerably
different pressures.
Time (minutes)
Approximately 11