Ammann ARR 1575 - Checking the Travel Pressures (Reverse;Forward)

305ARR1575
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557D034
557D035A
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557D036
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WORKSHOP MANUAL
18.2.5.2 Checking the travel pressures (reverse/
forward)
Pull out the Y9 connector (1) on the valve block.
Connect apressure gauge (at least 400 bar) to the travel pres-
sure measuring point (1).
Start the engine.
Full speed
Reverse while braking.
Let it run for no more than 5 seconds.
Connect a pressure gauge (at least 400 bar) to the MB travel
pressure measuring point (1).
Start the engine.
Full speed
Drive forward while braking.
Let it run for no more than 5 seconds.
If atravel pressure of 330 ± 15 bar is not reached:
• check the travel hydraulic motors (Chapter 18.2.6).
• check the maximum pressure of the travel pump.
If it is still not reached, replace the travel pump. See “Replace-
ment of the travel pump” (Chapter 11.2.1).