Hills Rotary 400, Installer Manual

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Item 7: Replacing an Arm Assembly
1. Remove all of the line segments from the hoist to prevent tangling (Fig. 33).
2. Lock into place the 8 disassembly tools in both the Upper and Lower Crosses (as per item
2 and 4). Do not lever the crosses apart.
3. Fold up the hoist and attach the line tie-off, only securing the arm assemblies that are not
being replaced (Fig. 34).
4. Place the hoist on the ground.
5. Disassemble the Upper Cross Assembly as per Item 2.
6. Disassemble the Lower Cross Assembly as per Item 4.
7. Remove the damaged Arm Assembly from the cross assemblies (Fig. 35).
8. Place the Arm Stay Pivot of the new assembly into the Upper Cross, ensuring the others
have not fallen out.
9. Re-assemble the Upper Cross (Fig. 36) as per Item 2, Steps 13 to 17.
10. Re-attach the Line Tie-Off strap to include all 4 arms (Fig. 37).
11. Replace the hoist in the Ground Socket.
12. Place the Arm Joiners into the pivots of the Lower Cross bottom.
13. Re-assemble Lower Cross (Fig. 38) as per Item 4, Steps 14 to 18.
14. Re-attach the lines.
Fig. 33 Fig. 34 Fig. 35
Fig. 36 Fig. 37 Fig. 38