Problem: The machine is unable to lift the loads as it previously could. The machine tries, but it can’t handle the weight.
The load is too heavy for the machine’s capacity. Be certain the load weight is within the machine’s load rating (as specified on the nameplate).
Confirm whether the battery is fully charged and is supplying enough power. If the machine does not lift the load when either of the Up buttons is pressed and held, and if the motor slows down, a lack of power is the likely cause. The problem can be in the battery, charger, the wiring between these parts or in the plug/socket. The battery charger should supply ± 13.8 volts.
The pump filter is clogged, making it impossible for the pump to draw hydraulic fluid. Remove the hydraulic tank in order to access and clean the filter.
The pump could be broken. Listen to the pump when it’s running, and be aware of scratching-like, high frequency or any other abnormal noise. If the pump is broken, replace it (P/N EAPU001).
The level of hydraulic fluid could be low. Check the fluid level in the hydraulic tank. When the fork/lift frame is at its bottom position (floor level), the fluid should reach the tank’s cap. If there is a lack of fluid, also check the hose and connections for any leakage.