Preventive maintenance
84 810770 Operator Manual Echion
Replace the hydraulic filter element
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.
2. Remove the used filter element from the filter head.
Use a 15/16-inch crowfoot wrench or a socket if the filter element is too tight to
remove by hand.
3. Put clean hydraulic fluid on the gasket of the new filter element.
4. Twist the filter element into the filter head.
5. Use a torque wrench to tighten the filter toa value between 13.5 N ∙ m (10 lbf ∙ ft)
and16 N ∙ m (12 lbf ∙ ft).
6. Turn
ON the pump in pierce-pressure mode.
7. Look at the sight gauge to check the hydraulic fluid level. Add hydraulic fluid, if necessary.
Do this task:
every 1,500 hours.
when the needle on the hydraulic gauge is in the red zone while the pump is at stable temperature.
Hydraulic filter element
Antiwear (AW) mineral oil or synthetic hydraulic
fluid, ISO viscosity grade (VG) 32 or 46
Torque wrench
15/16-inch crowfoot wrench or socket
Recommended materials
Clean funnel
Clean towels
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