Hypertherm HyPrecision 50S, Operator'S Manual

Page: 86 / 202

86 HyPrecision 50S/60S/75S Operator Manual 808690
5 – Preventive maintenance
Preventi
ve maintenance
6. Use a strap wrench or adjustable pliers to remove the suction strainers inside the tank.
7. Clean the inside of the tank with a lint-free towel and isopropyl alcohol. Make sure that no debris is left on the
bottom.
8. Install new suction strainers.

Hand tighten the suction strainer, and then turn it 90 degrees more.
9. Reconnect the hydraulic hoses.

Refer to the
Torque values
section, which begins on page 181.
10. Close the drain valve.
11. Install the drain valve plug.
12. Replace the access cover on the tank. Torque the nut to 27 N∙m (20 lbf∙ft).
13. Remove the used filler-breather cap.
14. Fill the tank with hydraulic fluid. Make sure that the hydraulic fluid level is at the top mark on the sight gauge.
15. Install the new filler-breather cap.
16. Discard the used parts.
CAUTION
Remove all towels from the tank before it is filled.
Do not use soap, detergent, or solvents.
Do not overfill the hydraulic fluid tank.
2
1
1 Suction strainer (to the gear pump) 2 Suction strainer (to the primary pump)