Hills Rotary 400, Installer Manual

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Item 4: Repairing the Lower Cross Assembly
You will require the Lower Cross disassembly tool set (blue) for this operation.
1. Fold up the hoist and secure with the line-tie off strap (See Fig. 1).
2. Place the disassembly tool into one of the recessed grooves of the Lower
Cross assembly.
Note:
Steps 2 to 5 are similar to steps 2 to 5 in item 2, Repairing the Upper
Cross Assembly
3. Push the tool upwards towards the Arm Joiner until it locates.
4. Use an 8mm Allen key to turn the central cam through 90 degrees. This action spreads
the locating snap features away from their locking ledge (See Fig. 5)
5. Repeat this with the remaining three tools around the cross.
6. Remove the hoist from the Ground Socket and lay it down with the
Main Standard supported.
7. Using a screwdriver, gently lever the cross halves apart to separate the cross (Fig. 11).
8. Once the cross is separated the Arm and Latch assemblies can be accessed.
9. To replace the Lower Cross Assembly you will need to remove the Handle assembly (Item
6) and also the Locking Pin and Locking Collar (Item 11) from the main standard.
10. Once these items are out of the way the halves can be slid off the bottom of the hoist.
(Fig. 12 and 13)
11. After the Lower Cross Assembly has been serviced or replaced re-assemble the
components that were removed in points 8, 9 and 10 (Fig. 14).
12. Place the hoist back into the Ground Socket.
13. Align the top of the Lower Cross Assembly and Latch with the screw in the Locking Collar
to ensure correct hoist operation (Fig. 15).
14. Locate and secure the Arm Joiners by locating them into the pivot recesses in the Lower
Cross Top.
15. Unlock and remove the disassembly tools from the four recesses around the cross.
16. Push the two halves of the cross together to line up the 8 snap hooks (Fig 16).
17. Using the Pin Punch provided and a hammer knock the two halves of the cross assembly
together (Fig. 17).
18. Ensure all 8 hooks have engaged and the Arm Joiners are seated correctly before opening
the hoist.