Official maintenance interval table: steering-head/screw parts and front axle - grease every 1 year; hydraulic brakes - mineral oil service at a specialized center every 6 months; battery - recharge every 2 months if not used; tire pressure - check/inflate monthly if low.
Fuente oficial: https://nuwa.tech/wp-content/uploads/2025/07/MANUAL-DE-INSTRUCCIONES-Y-GARANTIA-AVATAR-EXCELLENCE-002.pdf (tier A). Traducción/paráfrasis fiel del manual oficial; no se ha añadido ningún procedimiento no documentado.