Hitachi ZAXIS 250LC-7 Operator's Manual page 37

Precautions for Installation /Removal Front Attachment
d
CAUTION: Remove counterweight if swinging
without the boom.
Failure to do so may result in machine turnover.
1. Perform disassembly/assembly on a firm, level surface.
2. Align the center of the front attachment with the crawler
center. Position the travel motors in the rear.
3. Remove the front attachment only after removing the
bucket.
4. Remove counterweight if swinging without the boom.
Failure to do so may result in machine turnover.
5. Never allow any person to enter the area below the
machine during work.
ALWAYS use blocks to securely support the machine
in the case where work must be carried out under the
machine.
6. There may be residual pressure remaining in the pipe
lines. Before removing any plug from the pipe line,
slowly loosen the plug to check that the residual
pressure is completely relieved.
Clean the removed plug and store it in the tool box.
When the machine is hot immediately after use, hot oil
may spurt out, possibly causing severe burns. Wait for
the oil to cool before starting any maintenance work.
7. NEVER insert your fingers into pin holes when aligning
the pin holes.
8. To prevent personal injury, do not allow any person
under the boom cylinder rod before inserting the pin.
9. When a hammer is used, metal pieces may fly off
possibly causing injury. Wear safety glasses, a hard hat
and any other necessary safety gear.
DISASSEMBLING • ASSEMBLING
4-3
M16J-06-017
SA-438