Preventive maintenance
86 810770 Operator Manual Echion
Replace the hydraulic fluid
Parts, tools, and materials
Do this task when the pump is not operating.
1. Remove the top cover and the front panel. Refer to Inspect the pump on page 39 for
instructions.
2. Remove the filler cap or the filter head.
3. Use a siphon or a siphon pump to remove the hydraulic fluid from the tank.
Do this task:
every 3,000 hours.
if the hydraulic fluid is dark or milky in color or has a strong odor.
if a test laboratory finds the quality is unsatisfactory.
Refer to Check the hydraulic fluid on page 41.
Do not put too much hydraulic fluid in the tank.
1
Filler cap
2
Filter head
3
Sight gauge
1-18772 Hydraulic fluid replacement kit
Antiwear (AW) mineral oil or synthetic hydraulic
fluid, ISO viscosity grade (VG) 32 or 46
Clean towels
Siphon or siphon pump
Torque wrench
15/16-inch crowfoot wrench or socket
Recommended materials
Clean funnel
Container for used hydraulic fluid
Isopropyl alcohol
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