ASV SR-70 Wartungshandbuch PDF herunterladen (Seite 126)

1. Attach the gauge to test port A. (fig. 17-1) Route

the gauge so that you or an assistant can read it

during testing.

2. Make sure any bystanders are clear of moving

components, then start the engine.

3. Allow the engine to warm up to operating tempera-

ture, then with the engine at idle, check the charge

pressure. Record your reading. It should read 475

+/- 30 psi (3275 kPa) at this test port. If your read-

ing differs, adjustment is necessary.

4. If necessary, adjust the charge relief pressure.

To adjust:

a) Tilt the cab as described on page 4-2 of this

manual to access the pump.

b) Locate the charge relief valve on the top of the

drive pump. (fig. 17-2)

c) Remove the relief valve from the top of the

pump as shown in figure 17-3.

d) Add shims to increase the pressure setting, or

remove shims to decrease the setting until

within specification. (figure 17-4)

5. Retest once adjustments have been made to make

sure pressure is correct. Readjust as necessary

until correct.

17-2

Rubber Track Loader

17. Hydraulic Pressure & Flow

17-2

17-4

17-3

Charge Relief

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ASV SR-70 Wartungshandbuch Seite 126