Boom
3-25
6036, 6042, 8042, 10042, 10054 31211015
7. Using a suitable sling, carefully slide the third boom
section into the second boom section. Leave enough
room at the front of the boom to install the remaining
wear pads.
8. Install the top and side wear pads to the inside of the
second boom section.
9. Place the two extend chains up through the double
sheave mounting bracket on the front of the second
boom section.
10. Assemble the two extend chains to the mount if the
yoke plates were removed from the extend chains.
Secure in place with a locknut. Tighten the locknut
securely; but the yoke plates must pivot freely.
11. Install the double extend chain sheave. Apply grease to
the sheave. Turn the sheave by hand to distribute the
grease evenly.
12. Align the holes in the yoke plates with the hole in the
mount on the first boom section. Coat the shoulder bolt
with anti-seize compound and insert the shoulder
bolt (15) through the yoke plates and the mount on the
boom. Secure in place with a locknut. Tighten the
locknut securely; but the yoke plates must pivot freely.
13. Place the retract chain around the retract chain sheave
on the right side of the boom. Stretch the chain forward
and place the clevis between the two anchor plates.
Align the hole in the clevis with the hole location
recorded in the removal procedure. Insert the shoulder
bolt and locknut, tighten securely.
3.6.8 Fourth Boom Section Installation
1. Lay the hose carrier assembly out flat on a level surface.
Stretch the four male ends of the hoses out straight
from the hose carrier assembly. Measure from the male
end of each hose back toward the hose carrier assembly
196 in (498 cm) and apply tape around each hose at that
point. The tape is for proper tensioning of the hoses
during reassembly of the hose clamps.
2. Insert the hose channel assembly into the rear of the
fourth boom section. Slide the hose channel assembly
into the boom and line up the holes for the side wear
pads.
3. Install the side, bottom and top wear pads.
4. Lay the fourth boom section extend chain (32) on the
top of the fourth boom section with the threaded clevis
end toward the rear of the boom. Coat the threads on
the clevis with multi-purpose grease and insert the
clevis through the hole in the anchor plate. Install a
washer and locknut onto the clevis. Tighten the locknut
enough so the threads are even with the top of the
locknut.
Note: The hose carrier only folds one way; DO NOT force it.
DO NOT twist the hose carrier while folding.
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