The tensioner arm is very strongly sprung and you will retract it only with a spanner (wrench) when you install the (new) belt.
Removing the arm itself is more complicated and requires quite a bit of disassembly...
Use the search function (from member JFPinPA I think) for more details.
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2001 Boxster S (triple black). Sleeping easier with LN Engineering/Flat 6 IMS upgrade, low temp thermostat & underspeed pulley.
2001 MV Agusta F4.
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