SkyTrak 8042 Service Manual - Manual (Page 44)

Boom
3-6 6036, 6042, 8042, 10042, 10054
14. At the rear of the boom, measure the amount of
threads protruding beyond each locknut (4) and
record the measurement for reassembly. Remove
the two locknuts and flat washers holding both
extend chain clevis’ to the anchor plate on the first
boom section.
15. At the front of the second boom section, pull both
extend chains (5) out from between the second and
third boom sections. The extend chains can remain
anchored between the yoke plates on the first boom
section. Loop both chains over the top of the chain
sheave and lay the chains on top of the boom.
Note: Record the location of the shoulder bolt (6) to
ensure correct installation.
16. At the rear of the boom, locate the retract chain (7)
on the right side of the boom. In front of the retract
chain sheave, locate the shoulder bolt which holds
the retract chain to the anchor plates on the third
boom section. Remove the locknut from the
shoulder bolt. Allow the retract chain to hang out the
rear of the boom.
Note: If replacing the third boom section with a new
boom section, the quick attach assembly and the
Attachment Tilt cylinder should be removed at this time.
Refer to Section 3.8.3, “Quick Attach Removal.”.
If the third boom section is not to be replaced, the quick
attach assembly and Attachment Tilt cylinder can remain
in place.
17. Using a sling or suitable support, pull the third boom
section straight out of the second boom section.
Reposition the slings as needed so the third boom
section balances when removed from the second
boom section. Set the boom section down on a hard,
level surface. Support the boom as needed to
prevent it from tipping over.
18. At the rear of the third boom section, remove the
remaining wear pads, shims and hardware. Label
and tag each set of wear pads being removed.
19. Inspect all wear pads for wear. Refer to Section 3.9,
“Boom Wear Pads.”
3.4.3 Second Boom Section Removal
1. At the front of the first boom section, remove the top,
bottom and side wear pads to the inside of the
boom. Label and tag each set of wear pads being
removed.
MH0912
4
MH0921
5
MH2551
6
7