SkyTrak 6042 Service Manual - Manual (Page 97)

3.51 Model 6042 Legacy Origin 7/02
Boom
6. If the chain clevis has a threaded hole on the end
(Fig. 3-108, 1), a string or wire can be attached to
the retract chain clevis using a threaded eye (2) or a
flat washer tack welded to a capscrew (3). The
outside diameter of the eye or flat washer must be
smaller than the diameter of the threads on the
clevis. The string or wire will be used to pull the
chain back through the boom during the reassembly.
If there is no threaded hole on the end of the clevis, a
phillips screwdriver will be needed to catch the coun-
tersunk hole in the end of the clevis and guide it
through the tab during reassembly.
Figure 3-108 Threaded Hole In End of Clevis
7. Remove the elastic locknut (Fig. 3-109, 1) and flat
washer (2) holding the retract chain threaded
clevis (3) to the mounting tab. Save the flat washer
and discard the elastic locknut.
Figure 3-109 Retract Chain Locknut
8. If a threaded eye or capscrew with flat washer
(Fig. 3 -108, 2 or 3) was installed in step 6, attach a
string or wire to the end of the retract chain clevis.
The string or wire must be long enough to pull the
clevis and chain through the outer boom.
9. Place a pan or tarp, free of dirt, at the rear of the
vehicle, for the chain to rest on as it is being
removed from the boom. From the rear of the boom,
pull the retract chain out of the rear of the boom.
10. With the chain hanging from the rear of the boom,
inspect wear and condition of the chain, clevis’, chain
sheaves, chain pins, clevis anchors and all mounting
hardware. Replace a worn or damaged chain. DO
NOT attempt to make any repairs to the chain.
Note: DO NOT attempt to repair a chain. Replace a
stretched or damaged chain with a new part. Always
replace both the chain and the clevis. It is recommended
that when any chain is replaced, that all chains and
clevis’ be replaced at the same time.
2
1
MA9430
3
MH1110
1
2
3