Animating "models/props_combine/combinethumper002.mdl"

Hello.
I’m trying to animate that model.
This is my ENT:Initialize code:
[lua]
function ENT:Initialize()
self:SetModel( “models/props_combine/combinethumper002.mdl” )
self:PhysicsInit( SOLID_VPHYSICS )
self:SetSolid( SOLID_VPHYSICS )
self:SetUseType( ONOFF_USE )
end
[/lua]

And this is where it should be animating:
[lua]
function ENT:AcceptInput( name, activator, caller )
if name == “Use” and caller:IsPlayer() and caller:KeyDownLast(IN_USE) == false then
self:ResetSequence(0)
end
end
[/lua]

This one really has me stumped.

if name == “Use” and caller:IsPlayer() and caller:KeyDownLast(IN_USE) == false then