Assuming that the to-be lifted load does not surpass the capacity of the bottle jack, the first thing to check is the oil level in the system. If an inadequate level of oil is found in the system, users should refill it using a compatible hydraulic fluid for maximum performance, self lubrication, and smooth operation. Another thing that may be at fault is either leakage or seal failure. This can be easily solved by replacing the seals on the compression cylinder.