SkyTrak 8042 Service Manual - Manual (Page 84)

Boom
3-46 6036, 6042, 8042, 10042, 10054
13. Attach a wire to the end of the retract chain clevis
(12) with a threaded eye or a flat washer tack welded
to a capscrew. The outside diameter of the eye or
flat washer must be smaller than the diameter of the
threads on the clevis. The wire must be long enough
to pull the clevis and chain through the boom. The
wire must be heavy enough to pull the weight of the
entire chain back through the boom during the
reassembly.
14. From the rear of the boom, using the wire attached
to the rear anchor clevis, pull the retract chain
through the middle of the two center hoses on the
chain reel and over the top of the chain reel and out
of the rear of the boom.
15. Remove the wire still attached from the clevis on the
old chain.
16. Install the wire still attached, to the new chain clevis.
17. Coat the threads of the threaded clevis on the new
chain with multi-purpose grease.
18. From the front of the boom, have an assistant pull on
the tow wire while guiding the chain clevis between
the two center hoses of the hose reel and under the
chain sheave (13), on the left side of the boom and
down the boom between the third (14) and second
(15) boom sections. Keep the retract chain lined up
squarely with the chain sheave and help feed the
retract chain in while pulling on the wire from the front of
the boom.
19. Guide the threaded end of the clevis through the
hole in the tab (16) on the second boom section.
20. Remove the wire from the end of the clevis.
21. Place the flat washer onto the threaded clevis.
Assemble a locknut onto the threaded clevis. Turn
the locknut only 2 or 3 turns onto the clevis to allow
assembly of the other end of the retract chain.
22. At the front of the boom, disconnect the extend chain
clevis from the anchor plates on the second boom
section. Remove the locknut holding the shoulder
bolt to the anchor plates. Pull the extend chain clevis
from between the plates and lay over the front of the
fourth boom section.
23. Return to the operator compartment and start the
engine and slowly retract the boom. To avoid having
the retract chain becoming entangled, keep tension
on the chain coming out the back of the boom.
Retract the boom as far as possible with the Extend/
Retract cylinder. Turn the engine OFF.
24. The fourth boom section will not retract completely
and must be manually pushed in. To avoid having
the retract chain becoming entangled, keep tension
on the chain coming out the back of the boom while
the fourth boom section is pushed in.
Note: Care should be taken not to push the fourth boom
section in too far. If the fourth boom section is pushed in
too far it could damage the hose reel at the back of the
boom.
25. Remove the wire from the anchor clevis at the rear
of the boom. Place the retract chain up and over the
chain sheave in front of the hose reel assembly.
Place the clevis between the two anchor plates. Line
up the hole in the clevis with the anchor plate hole
position recorded during removal.
MH6021
14
15
13
MH5991
16
MH2671
17