Hyundai HL970A Operator's Manual page 190

3) 3) SEA SHORE OPERATION SEA SHORE OPERATION
(1) Prevent ingress of salt by securely tightening
plugs, cocks and bolts of each part.
(2) Wash machine after operation to remove salt
residue.
Pay special attention to electrical parts and
hydraulic cylinders to prevent corrosion.
(3) Inspection and lubrication must be carried out
more frequently.
Supply sufficient grease to replace all old grease
in bearings which have been submerged in
water for a long time.
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