Isuzu N Series 2008, Owner'S Manual

Page: 412 / 580

7-66
SERVICE AND MAINTENANCE
Checking the Hydro-booster Fluid
Level
Check the hydro-booster fluid level
and change the fluid according to the
Maintenance Schedule.
The hydro-booster fluid level is correct if
it is between the "MAX" and "MIN" lines.
If the level is too low, add fluid up to the
"MAX" line. Be sure to use Besco ATF-III
when adding fluid.
Changing the Fluid and Bleeding
the Hydro-booster System
1. Add hydro-booster fluid until the level
in the hydro-booster fluid tank is
between the "MIN" and "MAX" marks.
2. Start the engine and allow it to idle for
approximately 5 seconds.
3. Stop the engine and check the fluid
level in the tank.
4. If the fluid level in the hydro-booster
fluid tank is below the "MIN" mark,
add fluid until it rises to between the
"MIN" and "MAX" marks.
5. Repeat Step 2 through Step 4 until
the fluid level has stabilized and no
bubbles remain in the fluid. When
bubbles are seen, wait until they have
gone before repeating the above
process.
6. With the engine running, slowly press
the brake pedal about 5 times.
7. Stop the engine and check the fluid
level in the tank. If the level is below
the "MIN" mark, add hydro-booster
fluid until it rises to between the "MIN"
and "MAX" marks.
8. With the engine stopped, press the
brake pedal at least 10 times.
2008N_sec07-2_print2.indd 66 3/09/2008 5:53:13 PM