Direct Lift PP8S - Manual (Page 17)

17
• Check hydraulic oil level.
• Check and tighten bolts, nuts, and screws.
• Check all cable sheaves/assembly for free movement or excessive wear on cable sheave shaft.
Yearly Maintenance
• Lubricate the cable sheave shaft by using grease gun at lease once a year after the lift is in service.
• Check for excessive wear of cable. Replace them if necessary.
• Change the hydraulic fluid - good maintenance procedure makes it mandatory to keep hydraulic fluid
clean. No hard fast rules can be established; - operating temperature, type of service, contamination
levels, filtration, and chemical composition of fluid should be considered. If operating in dusty
environment shorter interval may be required.
Special Maintenance Tasks
NOTE: The following items should only be performed by a trained maintenance expert:
• Replacement of hydraulic hoses.
• Replacement of cables and sheaves.
• Replacement or rebuilding air and hydraulic cylinders as required.
• Replacement or rebuilding pumps / motors as required.
• Checking of hydraulic cylinder rod and rod end (threads) for deformation or damage.
CAUTION!
Relocating or changing components may cause problems. Each component in the system must be compatible;
an undersized or restricted line will cause a drop in pressure. All valve, pump, and hose connections should
be sealed and/or capped until just prior to use. Air hoses can be used to clean fittings and other components.
However, the air supply must be filtered and dry to prevent contamination. Most important is cleanliness;
Contamination is the most frequent cause of malfunction or failure of hydraulic equipment.