SECTION 4 - BASIC HYDRAULIC INFORMATION & SCHEMATICS
31215079
4-41
Oscillating Axle Cylinder Bleeding Procedure
1. Start the engine.
2. Raise the arms high enough so that the left axle cyl-
inder bleeder valve can be accessed.
3. Let engine run at idle.
4. Position a suitable container [approximately 0.5 gal
(1.9 l)] over the bleeder valve.
5. Using a 3/8 in. wrench, slowly open bleeder valve.
6. Keep the container close enough to the bleeder
valve to catch the aerated oil.
7. Open the bleeder valve enough to get a fast stream
of oil.
NOTE:
A fast stream of oil will exhaust the air out of the
hoses and cylinder better than a slow stream of oil.
8. Every 3-4 seconds, close the bleeder valve so that a
slower stream of oil is being purged. When only oil
and no air is being purged, close the bleeder valve.
9. A new system can take 10-15 seconds per cylinder to
bleed.
ANYTIME EITHER OF THE HOSES PLUMBING TO THE CYLINDERS ARE
BROKEN INTO, AIR HAS BEEN INTRODUCED INTO THE SYSTEM. THE
CYLINDERS MUST BE BLED.
1
1. Oscillating Axle Cylinder
2. Bleeder Valve
Figure 4-30. Oscillating Axle Cylinder Bleeding
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