YH4
GRAND
VITARA
GOOD
NO GOOD
BRAKES 5-15
6) Upon completion of fluid pressure test, bleed brake system and
perform brake test.
BOOSTER OPERATION CHECK
There are two ways to perform this inspection, with and without a
tester. Ordinarily, it is possible to roughly determine its condition
without using a tester.
NOTE:
For this check, make sure that no air is in hydraulic line.
INSPECTION WITHOUT TESTER
Check Air Tightness
1) Start engine.
2) Stop engine after running for 1 to 2 minutes.
3) Depress brake pedal several times with the same load as in ordi-
nary braking and observe pedal travel. If pedal goes down deep
the first time but its travel decreases as it is depressed the se-
cond and more times, air tightness is obtained.
4) If pedal travel doesn’t change, air tightness isn’t obtained.
NOTE:
If defective, inspect vacuum lines and sealing parts, and re-
place any faulty part.
When this has been done, repeat the entire test.
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