Reel to Reel Question?

Hello,

I recently bought a used Teac X-700R reel to reel deck that I just paid a lot of money to have serviced. My question concerns the operation of the two tension arms on this model. The arm on the left seems to switch on the motor which turns both capstans, while the one on the right seems to have no electrical function (does not cause the motor to turn on or off) but may aid in tensioning the tape -- although it rides higher in the slot than the left tension arm. Does this seem normal or is the right arm not working as intended?

Apart from that, the deck sounds marvelous and all other functions appear to work okay. Thanks in advance for any help.