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12. When reassembling the mast, start with the base tube and work towards the top tube.
Secure the base tube of the mast horizontally on the saw horses or similar supports.
13. Using a second person or a brace to support the top end, hold the next tube so that the
top end of the tube is at a lower elevation than the seal end. Rest the lip of the seal on
the inside of the base tube or receiving tube (Figure 7-2). Use care to follow all
applicable lifting precautions whenever lifting the mast or components of the mast.
14. Slowly raise the lower end of the tube to horizontal while carefully pressing the lip of the
seal into the receiving tube. Use your thumbs and forefingers to simultaneously press on
both sides of the seal in an upward motion. Work this way until your fingers meet at the
top.
15. To make sure that the seal is in correctly, slide the tube back and forth within the
receiving tube. If the tube has difficulty in its travel, pull it out and follow the appropriate
steps to re-lubricate the seal and re-insert the tube. Test again to see that the seal is in
correctly. Once the seal is correctly inserted, slide the collar to the top of the tube. Wrap
the nylon stop panel around the tube and slide it in.
16. Line up the holes in the collar with the holes in the sleeve flange on the top of the
receiving tube. Replace the three 10-32 flat head screws.
Note: The screws used to attach the collar to the sleeve flange have a plastic pellet. The
pellet will help keep the screws from turning once tightened or adjusted. After the screws
have been removed twice, it is recommended to obtain new screws of this type or use a
thread-locking liquid comparable to Loctite® 495 Instant Adhesive.
17. Repeat steps 10-16 for each tube going from the largest to the smallest.
TP-5928001-C
February 2023
H
URRY
Figure 7-2 Seal Replacement
-U
® M
O
P
AST
PERATOR
'
M
S
ANUAL
7-5
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