Hitachi ZW 120-6 Operator's Manual page 179

Driving in Water or on Soft Ground
IMPORTANT: If the axles, transmission, etc. should
become submerged, they must be reconditioned
immediately, otherwise the inner gears may wear
excessively, or the machine may become damaged.
Consult your nearest authorized dealer for inspection
and maintenance.
 Do not submerge the front and rear axles, transmission,
or front and rear propeller shafts in water or mud. Avoid
driving in water as much as possible.
 If driving in water or mud is unavoidable, do not allow
the machine to be submerged deeper than allowable
depth (A) (up to the bottom of the axle housing). Reduce
the allowable depth in case the river bed is feared to be
rugged or water is flowing fast.
 When driving/operating on muddy ground, mud can
easily accumulate on the frame even if the frame is not
heavily submerged in mud. Check regularly and clean as
necessary.
f
NOTE: After operation is complete, be sure to wash and
lubricate all areas which were submerged.
DRIVING MACHINE
4-9
M4GB-04-003