Why isn't my sword equip animation working?

my code:

local Tool = script.Parent
local Player = game:GetService('Players').LocalPlayer
local Character = Player.Character
if not Character or not Character.Parent then
    Character = Player.CharacterAdded:Wait()
end
local Humanoid = Character:WaitForChild('Humanoid')
local Animator = Humanoid:WaitForChild('Animator')

local EquipAnimation = Tool.Animations.Equip

local EquipAnimationTrack = Humanoid:LoadAnimation(EquipAnimation)
EquipAnimationTrack.Priority = Enum.AnimationPriority.Action
EquipAnimationTrack.Looped = false

Tool.Equipped:Connect(function()
    EquipAnimationTrack:Play()
end)

Tool.Unequipped:Connect(function()
    EquipAnimationTrack:Stop()
end)

it works in the animation editor but not when i test it. Can anybody help?

I have two keyframes if that helps. I also have a Motor6D attached to the hand.