Note that you still have a maximum of only 5 Spell/Trap Zones. Use cards that can send Equip Cards to the Graveyard to free up zones, such as "Release Restraint Wave" or "Emergency Provisions", leaving only the absolute strongest monsters equipped to "Truckroid".
Once sufficiently powered, summon monsters like "Lava Golem" or "Volcanic Queen" to get rid of any problematic monsters under your opponent's control, while simultaneously equipping a powerful monster to "Truckroid" (this can be used against monsters that can't be destroyed by battle or have otherwise detrimental effects that can't simply be removed by an attack from "Truckroid").
Use with "Ojama Country". The monster's ATK and DEF will be switched on the field, and revert back to their normal ATKs once equipped to "Truckroid". "Truckroid" itself will also have 2000 base ATK.