New Holland L180 Repair Manual page 48

DISTRIBUTION SYSTEMS ­ PRIMARY HYDRAULIC POWER SYSTEM
16. Using the fitting kit CAS10508, install the valve in the
hole for the drain plug. Make sure that the valve is
closed.
17. Stop the vacuum pump.
18. Connect the inlet hose for the portable filter to the
valve that is installed in the hole for the drain plug.
19. Disconnect the vacuum pump.
20. Install the outlet hose for the portable filter in the hy­
draulic reservoir filler neck.
21. Open the valve that is installed in the hole for the
drain plug.
22. Move the switch for the portable filter to the ON po­
sition.
23. Start and run the engine at half throttle.
24. Run the portable filter for 10 minutes with the engine
running at half throttle.
25. Continue to run the portable filter. Increase the en­
gine speed to full throttle. Do the following to heat
the oil to operating temperature:
(A) Increase the engine speed to full throttle.
(B) Hold the bucket control lever in the ROLLBACK
position for five seconds.
(C) Return the blade control lever in the NEUTRAL
position for five seconds.
(D) Repeat steps 25B and 25C until the oil is at op­
erating temperature.
26. With the engine running at full throttle and the
portable filter running, completely extend and retract
the lift cylinders and the bucket cylinders. Continue
to operate the cylinders two times, one after the
other for 30 minutes
27. Decrease the engine speed to low idle.
28. Continue to run the portable filter for 10 minutes.
During this time, move the hose up and down to help
mix the oil in the reservoir.
29. Stop the portable filter
30. Stop the engine.
31. Remove the hose from the hydraulic reservoir.
32. Reservoir ­ Apply vacuum (A.10.A)
33. Close the valve that is installed in the hole for the
drain plug.
34. Disconnect the inlet hose for the portable filter from
the valve.
35. Start the vacuum pump. .
36. Remove the valve from the hole for the drain plug.
37. Install and tighten the drain plug.
38. Stop the vacuum pump.
39. Disconnect the vacuum pump from the opening in the
reservoir.
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