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 TM 10-3930-660-24-2
BOOM ASSEMBLY REPLACEMENT - CONTINUED
0261 00
REMOVAL
WARNING
Do NOT remove hydraulic tank filler cap or disconnect or remove any hydraulic system line or fitting unless
hydraulic system pressure has been relieved. Hydraulic system pressure can be over 3,000 psi (20685 kPa),
even with engine and pump OFF. To relieve pressure, lower all hydraulic attachments to the ground and shut
down engine. Move control levers through all operating positions, then SLOWLY loosen hydraulic tank
filler cap. After maintenance, tighten all connections before applying pressure. Escaping hydraulic fluid
under pressure can penetrate the skin, causing injury or death.
CAUTION
Wipe area clean around all hydraulic connections to be opened during removal. Cap oil lines to assure
proper installation. Use container to catch any hydraulic oil that may drain from system.
NOTE
In this procedure, the inner, intermediate and outer boom sections are removed as a unit. For removal of
individual boom sections, refer to WP 0262 00, WP 0263 00 and WP 0264 00.
If more than one hydraulic line is to be removed, tag lines to assure proper installation. Use container to
catch any hydraulic oil that may drain from system.
0261 00-2
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