... %, 16.25%, 72.5%, 95%BUTTON INSTRUCTION1. Select Button: When the corresponding indicator light turns off, press ... the RED4 POWER switch, oil pump power off. Press Select button, indicator lamp light, and press arrow ↑ ↓ ... to choose pre-set rank, and press select button again, indicator lamp power-off,Then reback ... to the original situation. Under the situation Select light power-off, press pull down ...