Boom
3-8
31211015 6036, 6042, 8042, 10042, 10054
15. Remove the remaining wear pads. Label and tag each
set of wear pads being removed.
16. Inspect all wear pads for wear. Refer to Section 3.8,
“Boom Wear Pads”
.
17. Remove the extend chain sheave (12).
3.4.4 First Boom Section Removal
1. Use a suitable overhead lifting device and sling
attached to the Lift/Lower cylinder; remove slack from
the sling.
2. At the underside of the boom, locate the retract chain
locknut (13). Measure the amount of threads protruding
beyond the locknut and record that measurement for
reassembly of the chain. Remove the locknut and flat
washer.
3. Remove the retract chain by pulling it out through the
rear of the boom. Place the retract chain on a clean
surface.
4. Label, disconnect and cap the hydraulic hoses from the
bulkhead fittings on the mounting plate (14). Remove
the tubes from the bulkhead fittings.
5. At the rear right side of the boom, label, disconnect and
cap the boom Extend/Retract hoses from the bulkhead
fittings on the mounting plate. Cap the fittings to keep
dirt and debris from entering the hydraulic system.
6. Remove the tube clamps (15) and clamp covers to the
Extend and Retract tubes under the boom.
7. At the rear right side of the boom, label, disconnect and
cap the Extend and Retract tubes (16) from the
bulkhead fittings.
Cap the fittings to keep dirt and
debris from entering the hydraulic system.
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