HyPrecision 50S/60S/75S Operator Manual 808690 85
5 – Preventive maintenance
Preventive maintenance
Required parts, tools, and materials
12438 Suction strainer, 1-1/2 inch
11960 Suction strainer, 2-1/2 inch
14629 Filler-breather cap
16025 Hydraulic filter (included in the 15569 HyPrecision S-series standard spares kit)
Antiwear (AW) mineral oil or synthetic hydraulic fluid, ISO viscosity grade (VG) 32 or 46
Clean, lint-free towels
Isopropyl alcohol
Standard 9/16-inch open-ended wrench or socket (drain valve plug)
Standard 3/4-inch crowfoot wrench or socket (access cover)
Torque wrench
Strap wrench or adjustable pliers
Hose or pipe for draining hydraulic fluid
Container for used hydraulic fluid
Recommended materials
Clean funnel
Do this task when the pump is not running.
1. Remove the drain valve plug.
2. Open the drain valve lever on the bottom of the hydraulic fluid tank.
Use a hose or a pipe to direct the hydraulic fluid into a container.
3. Disconnect the lower ends of the hydraulic hoses to drain them.
4. Install a new hydraulic filter. Refer to page 83 for instructions.
5. Remove the access cover on the tank.
1 Drain valve plug 2 Drain valve lever
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