1. First, locate the adjustment knob or screw on the adjustable arm. Typically, these are situated at one end of the arm or near it.
2. If the adjustment mechanism is a rotary knob, try turning it clockwise or counter-clockwise to observe whether the arm's tension changes. If the arm is too tight, try turning it counter-clockwise to loosen it slightly; if it is too loose, turn it clockwise.
3. If the adjustment mechanism is a slider (designed to move back and forth), adjust the arm's tension by pushing the slider forward or backward.
4. If the adjustment mechanism involves a screw, use a tool-such as a screwdriver-to turn the screw and adjust the arm's tension.
5. During the adjustment process, carefully monitor the arm's tension until you achieve the desired level.
6. If none of the above methods resolve the issue, it is recommended that you seek professional assistance for repair or replacement.
