SkyTrak 6042 Service Manual - Manual (Page 107)

3.61 Model 6042 Legacy Origin 7/02
Boom
Figure 3- 136 Assembly of Rear Cover to Outer Boom
b. Retract Chain Removal and Replacement
1. Park the vehicle on a hard, level surface.
2. Fully retract the boom and raise the boom to a
horizontal position. Place the travel select lever in
(N) NEUTRAL, move the neutral lock lever to
NEUTRAL LOCK position, engage the parking brake
switch and shut the engine OFF.
3. Remove the thumbscrew (Fig. 3 -136, 5), lockwasher
(4) and flat washer (3), holding the rear cover (2) to
the rear of the outer boom (1). Lift the rear cover
straight up until the capscrew in the top of the cover
clears the retaining hole in the top of the outer boom.
Remove the cover from the outer boom.
4. At the front underside of the boom, record the amount of
threads extending beyond the elastic locknut
(Fig. 3-137, 1). This measurement will be the starting
point for adjustment of the boom retract chain.
5. At the front underside of the outer boom, loosen the
elastic locknut (Fig. 3-137, 1) far enough so that it
can be removed by hand.
Figure 3- 137 Retract Chain Locknut
6. If the chain clevis has a threaded hole on the end
(Fig. 3 -138, 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 not threaded hole on the end of the clevis,
you will need to use a phillips screwdriver to catch the
end of the clevis and guide it through the tab during
reassembly.
Figure 3-138 Threaded Hole In End of Clevis
7. Remove the elastic locknut (Fig. 3-137, 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.
8. If a threaded eye or capscrew with flat washer
(Fig. 3 -138, 2 or 3) was installed in step 6, attach a
string or wire to the eye or flat washer on 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.
MA9820
3
4
5
1
2
MH1110
1
2
3
2
1
MA9430
3