Hitachi ZW 180-6 Operator's Manual page 371

Removal and Installation of Tire
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WARNING: A wheel and tire assembly is a very
heavy part so that removal and installation of a
tire is hazardous and difficult work. In addition,
a crane to lift a tire is required when removing or
installing the tire to the wheel. Consult your nearest
authorized dealer or a professional tire sales shop
for tire removal and installation work. When jacking
up the machine, observe the following points.
 Select dry, solid and flat ground for a work site.
 Work in a group of more than two persons. One
person to mainly do the work and others to work as
assistants and/or ensure safety.
 Do not use the bucket to raise the front wheels.
 Do not raise the machine off the ground higher
necessary.
 When one axle is raised off the ground, block the tires
at the axle that is still in contact with the ground.
 After the machine is raised off ground, be sure to
block the machine using rigid supports. If wooden
blocks are used for "cribbing" support, use only hard
wood blocks. Never use soft wood for support. Never
leave the machine to be supported only by jacks.
 The rear wheels oscillate. Insert wooden blocks
between the axle and the frame to stop oscillation.
 When removing the wheel bolts, lift the wheel with
a crane so that the wheel bolt remaining at the top
position is removed lost.
 Wheel bolt tightening torque: 890 N·m (91 kgf·m, 655
lbf·ft)
Tire Wheel:
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WARNING: Use only reliable and professional
tire repair shops to do tire repair or replacements.
Only authorized professional repair shops should
be permitted to assemble and inflate tires. Rusty
rims that have been deeply corroded must not be
reused. Replace them with new rims.
MAINTENANCE
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