HPU300 Hydraulic Power Pack Caterpillar

Overview of Connections

Note: Do not travel across flexible hydraulic lines or connecting cables.

Note: The hydraulic hoses of the power pack must be connected to the excavator before switching on the power pack.

Illustration 1	g06091360

Coupling the 300.9D VPS Excavator to the Power Pack

1. Place the machine and the power pack at an open area, on flat, solid ground.
   Show/hide table

   Illustration 2	g06100168

2. Position the upper structure as shown.

3. Swing the upper structure to position the dozer blade behind the operator and to allow access to the Power Pack-connection points on the lower structure.
   Show/hide table

   Illustration 3	g06100215

4. Lower the blade to the ground.

5. Extend the stick and the bucket fully. Lower the boom so that the bucket is rested on the ground.

6. Shut off the engine.

7. Cycle the joysticks to relieve any pressure remaining in the hydraulic lines.

8. Move the hydraulic lockout control lever to the RAISED position.

9. Make sure that the Power Pack is switched off.
   Show/hide table

   Illustration 4	g06091363

10. Pull out split pin (A) and pin (B) (at the front and rear) on the power pack and remove lance (C) from the power pack.

11. Install the pin and the split pin on the power pack again.
    Show/hide table

    Illustration 5	g06091364

12. Insert lance (C) in the holder on the excavator and secure the lance with pin (B) and split pin (A).
    Show/hide table

    NOTICE
    Possible damage due to use of different hydraulic oil. The power pack and excavator must be fitted with Cat HYDO Advanced 10 or equivalent. Operation is prohibited if other oil types/grades or biodegrade hydraulic oil is used.

    Show/hide table

    Illustration 6	g06091822

13. Connect the hydraulic hose connections (D) to the power pack.

    Note: Use caution and wear protective gloves when making hydraulic hose connections.

    Note: Use a suitable container and discard spilled oil according to local regulations.

    Show/hide table

    Illustration 7	g06091825

14. Connect the hydraulic hose connection (D) to the excavator.

15. Connect the hydraulic hose connection (E) to the excavator.
    Show/hide table

    Illustration 8	g06091829

16. Tighten clamping screw (F) and fasten the hose on the lance as shown.

Uncoupling

Show/hide table

Illustration 9	g06092254

1. Uncouple the hydraulic hose connection (E) from the excavator.

2. Uncouple the hydraulic hose connection (D) from the excavator.
   Show/hide table

   Illustration 10	g06092256

3. Uncouple the hydraulic hose connections (D) from the power pack.

   Note: Use caution and wear protective gloves when disconnecting hydraulic hose connections.

   Note: Use a suitable container and discard spilled oil according to local regulations.