Hitachi ZW 310-6 Operator's Manual page 235

Operating in Water or on Soft Ground
IMPORTANT: If the axles, transmission, etc. should
become submerged under water to the point that
water enters into them, they must be reconditioned
immediately, otherwise the inner gears may wear
excessively, or the machine may become damaged.
Contact 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 operating in water as much as
possible.
 If operating 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 operating on muddy ground, mud can easily
accumulate on the chassis even if the chassis 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.
MOVING THE MACHINE
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M4GB-04-003