Chapter 4: Maintenance
80 M47-17027-EN
Recommended procedure
Refer to Figure 20 on page 82 for identification of components.
1. Remove the right side cover from the frame base. Refer to “Remove and install base covers” on
page 64.
2. Clean the area around the fill hole and air breather filter (3 and 2) to remove all dust, dirt and grime.
3. If the oil temperature/level switch has tripped and it is determined that the trip was caused by a low
oil level, perform steps b through d of this procedure only. Otherwise, skip this step and continue
with step 4.
a. Remove the air breather filter from the reservoir fill hole - push down and turn counterclockwise.
b. Insert the clean funnel with a mesh filter into the fill hole and add enough of the recommended
hydraulic fluid to the reservoir until the oil is visible at the bottom of the sight gauge. This will
reset the temperature/level switch.
c. Remove the funnel.
d. Install the air breather filter onto the reservoir fill hole.
4. Start the HPS and fully retract the hydraulic cylinder.
5. Press the DISABLE FRAME button in the controlling software to shut down the HPS.
6. Remove the air breather filter from the reservoir fill hole - push down and turn counterclockwise.
7. Insert a clean funnel with a mesh filter into the fill hole and fill the reservoir with the recommended
hydraulic fluid. Fill the reservoir to the top of the sight gauge.
8. Install the air breather filter onto the reservoir fill hole.
9. Start the HPS and cycle the hydraulic cylinder through its full stroke a few times. Fully retract the
hydraulic cylinder. Press the DISABLE FRAME button in the controlling software to shut down the
HPS. Check the oil level. If the oil is not to the top of the sight gauge, repeat steps 6 through 9. If
the oil is to the top of the sight gauge, continue with next step.
10. Install the cover that was removed in step 1.
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