Keeping the World Flowing
37
PM-GP-005b
Page: 1/1
Component:
Hydraulic manual override for double-acting actuator
Task:
Hydraulic oil replacement
Equipment, Tools, Materials:
Project documentation
Wrench
Warnings:
Preliminary Operations:
Description:
Tasks must be executed with the tank in vertical position.
Verify the absence of pneumatic pressure.
Correct oil level is approximately 25 mm (1") below the fill/breather port.
Drain procedure
18. Remove breather/plug (1.5)
19. Place containers under drain port (D1), (A2) and (B2) to collect
the fluid
20. Loosen plugs (D1), (A1), (B1), (A2) and (B2)
21. Discharge oil
22. Tighten plug (D1), (A2) and (B2) back in its seat with a wrench
23. Hand tighten plug (A1) and (B1) and unfasten both 1 turn
Used hydraulic fluid must be disposed of safely.
A1
B1
1.1
1.5
D1
1.2
Filling procedure
24. Fill with oil from the fill /breather port (1.5) up to 25 mm (1")
below the port
25. Move the open/close selector (1.2) to the outboard side of the
hydraulic cylinder
26. Install the pump lever and operate pump (1.1) until oil is bled
from port A1
27. Tighten plug (A1) with a wrench
28. Continue operating the pump to the end of the actuator stroke
29. Ensure the oil level in the tank does not drop below the
intake tube
30. Move the open/close selector (1.2) to the inboard side of the
hydraulic cylinder
31. Operate pump (1.1) until oil is bled from port B1
32. Tighten plug (B1) with a wrench
33. Continue operating the pump to the end of the actuator stroke
34. Ensure the oil level in the tank does not drop below the
intake tube
35. Stroke the actuator with the pump in both direction from
2 to 3 times
36. Check the oil level. If necessary, fill in from the fill /breather port
(1.5) up to 25 mm (1") below the port
Important: Do not exceed this fluid level
37. Reinstall the tank breather (1.5) and return the lever to the
storage holder
A2
B2
16.0 Periodic Maintenance
A4
US
US
A4
US
A4
A4
US
