SkyTrak 8042 Service Manual - Manual (Page 210)

3.149 Model 8042, 10042, 10054 Legacy Rev. 03/04
Boom
Wrap 24 gauge steel wire (8) tightly into the threads
of the clevis (9). Start the coils as close to the tab as
possible. Make sure the end (10) has enough of a tail
to wrap into a knot at the top of the clevis. Push the
clevis (9) and guide wire (8) into the primary
intermediate boom (11), so that only the guide wire is
hanging out of the tab.
Twist the tow wire (12), 17 gauge or heavier, securely
onto the guide wire (8). This will allow the tow wire to
be pulled back through the hole (13) in the tab (14) on
the primary intermediate boom (15) along with the
guide wire attached to the chain clevis.
14. From the rear of the boom, using the wire attached
to the rear anchor clevis, pull the inner boom 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.
If a threaded eye or capscrew with flat washer was
installed to the end of the clevis:
15. Remove the threaded eye (6) or capscrew with flat
washer (7), with the 17 gauge wire still attached, from
the clevis on the old chain.
16. Install the threaded eye or capscrew with flat washer,
with the 17 gauge wire still attached, to the new chain
clevis.
If no threaded eye or capscrew with flat washer was
installed to the end of the clevis:
17. Remove the 17 gauge tow wire (12) from the guide
wire (8) attached to the clevis on the old chain.
18. Install a threaded eye or capscrew with flat washer
into the threaded hole in the end of the clevis on the
new chain.
19. Attach the tow wire (12) to the threaded eye or
capscrew with flat washer, installed on the new chain.
Once the 17 gauge wire is installed to the end of the
clevis of the new chain:
20. Remove the 6 foot piece of wire attached to the rear
anchor clevis of the old chain and attach it to the rear
anchor clevis of the new chain.
21. Coat the threads of the threaded clevis on the new
chain with multi-purpose grease.
22. Have a second person assist with the next steps.
From the front of the boom, one person should pull
on the tow wire (12) while the person at the rear of
the boom guides the chain clevis between the two
center hoses of the hose reel and under the chain
sheave (16), on the left side of the boom (in front of
the hose reel assembly not shown for clarity) and
down the boom between the secondary intermediate
boom (17) and the primary intermediate boom (18).
23. The person at the back of the boom should keep the
retract chain (19) lined up squarely with the chain
sheave and help feed the retract chain in while the
second person pulls on the wire (20) from the front of the
boom.
24. The person at the front of the boom should guide the
threaded end of the clevis (21) through the hole in
the tab (22) on the primary intermediate boom.
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12
14
13
15
MH6050
8
MH6020
16
17
18
MH5990
21 19
20
22