JLG 1200SJP, Service Maintenance Manual

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SECTION 4 - BOOM & PLATFORM
3121142 – JLG Lift – 4-7
4.2 BOOM REMOVAL, DISASSEMBLY/ASSEMBLY, &
CABLE REPLACEMENT
Removal
1. Place machine on firm, level ground.
2. Slightly elevate the boom and support the fly boom
with a crane or an adequate lifting device capable of
handling 6 - 7 tons.
3. Place blocking under lift cylinder to hold it in place.
4. Remove lift cylinder pin securing the lift cylinder rod to
the boom.
5. Remove the boom end cover.
6. Tag and disconnect the telescope, tank, and pressure
hoses as indicated below from the main valve and cap
ends.
1. Pivot Pin
2. Bolt
3. Keeper Pin