SkyTrak 8042 Service Manual - Manual (Page 129)

Boom
3.68 Model 8042, 10042, 10054 Legacy Rev. 03/04
19. Remove the elastic locknut (1) and capscrew (2)
holding the inner boom extend chain sheave (3) to
the front of the secondary intermediate boom (4).
Use a brass punch and a rawhide hammer to
remove the sheave pin (5).
20. Inspect the sheave pin (5) for corrosion or damage. If
the pin is damaged, it should be replaced. Minor
corrosion can be repaired with fine emery cloth.
Save the chain sheave, pin and capscrew. Discard
the elastic locknut.
21. At the front of the secondary intermediate boom (6),
remove the capscrews (7) and lockwashers (8)
holding the top wear pads (9) and spacers (10) to
the inside of the secondary intermediate boom.
Label the wear pads and spacers as “Secondary
Intermediate Boom Top Left” and “Secondary
Intermediate Boom Top Right” sides. Save the
spacers, capscrews, lockwashers and wear pad
inserts (11).
22. At the front of the secondary intermediate boom (12),
remove the capscrews (13), lockwashers (14) and flat
washers (15) holding the side wear pads (16) and
shims (17) to the inside of the secondary
intermediate boom. Label the wear pads and shims
as “Secondary Intermediate Boom Left Upper/Lower”
and “Secondary Intermediate Boom Right Upper/
Lower.” Save the shims, capscrews, flat washers,
lockwashers and wear pad inserts (18).
MH1800
1
2
3
4
5
MH1810
8
6
7
8
9
10
11