SkyTrak 8042 Service Manual - Manual (Page 204)

3.143 Model 8042, 10042, 10054 Legacy Rev. 03/04
Boom
9. At the rear of the boom, attach one end of a wire (20)
to the threaded clevis (21) on the inner boom extend
chain. Loop the wire around and twist together to
form a loop. Route the wire around the right side of
the clevis anchor plate (22).
10. Have a second person assist with the removal of the
inner boom extend chain. One person should pull
the chain from the front of the boom while the
second person guides the wire into the boom from
the rear. Remove the wire from the clevis, but not
from inside the boom.
11. Coat the threads of the threaded clevis (23) with
multi-purpose grease.
12. Lay the new inner boom extend chain (24) on top of
the outer boom (25) with the threaded clevis (23)
toward the front of the boom.
13. Attach the wire (26) to the threaded clevis (23) of the
new inner boom extend chain. Loop the wire through
the clevis and twist together to form a loop.
14. Pull the inner boom extend chain forward and place in
between the chain sheave mounts (27). Guide the
wire and the threaded clevis into the boom by
placing the threaded clevis between the secondary
intermediate boom (28) and the top of the inner
boom (29).
15. While one person guides the inner boom extend
chain into the front of the boom, a second person
should pull the wire (20) and threaded clevis toward
the rear of the boom. Guide the threaded clevis (21)
into the hole in the anchor plate (22).
Note: ALWAYS replace elastic locknuts with new elastic
locknuts to help ensure proper fastening.
16. Place the saved flat washer (7) onto the threaded
end of the threaded clevis (8) and assemble a new
elastic locknut (6). Thread the elastic locknut onto
the threaded clevis until the threads are flush with
the top of the nut.
17. Cut the loop in the wire and remove the wire from the
clevis.
MH5720
20
20
21
22
MH5730
23
24
25
26
27
28
29