SkyTrak 8042 Service Manual - Manual (Page 138)

3.77 Model 8042, 10042, 10054 Legacy Rev. 03/04
Boom
5. Remove the socket head capscrews (17) and elastic
locknuts (18) holding the extend chain clevis’ (19) to
the yoke plates (20).
6. Inspect the yoke plates (20) for wear or distortion. If
any wear or distortion is detected, both plates must
be replaced. If no wear or distortion is detected,
save the plates. Save the socket head capscrews
and discard the elastic locknuts.
7. At the front of the primary intermediate boom,
remove the capscrew (21) and lockwasher (22)
holding the extend chain sheave pin (23) to the
sheave mount bracket on the primary intermediate
boom. Remove the pin from the mount bracket and
the extend chain sheave (24). Remove the extend
chain sheave and inspect the condition of the
bushings. Replace the bushings if there are any
signs of wear. Inspect the pin, and replace it if there
are any signs of wear.
8. At the rear of the boom, remove the two elastic
locknuts (25) holding the threaded clevis’ (26) of the
extend chains to the anchor bracket on the
secondary intermediate boom. Save the flat
washers (27) and discard the elastic locknuts.
MH2330
20
19
17
18
19
20
MH2000
21
22 23
24
MH2011
25
26
27