the sun, heat, moisture or dirt. 6.Keep the unit well ventilated. HEADSHELL INSTALLATION: Insert the HEADSHELLinto the front of the tubular TONE ARM. While holding the HEADSHELL firmly in a horizontal position, turn the LOCKING NUTcounter clockwise until the HEADSHELLis locked in place. Be sure not to over tighten the LOCKING NUT. COUNTERWEIGHT INSTALLATION: 1.Slide the COUNTERWEIGHTonto the rear of the TONE ARMwith the numbered stylus gauge facing forward. 2.Twist the COUNTERWEIGHTcounter clockwise lightly, to screw it onto the rear of the TONE ARM. ADJUSTING HORIZONTAL ZERO BALANCE AND STYLUS PRESSURE: 1.Without touching the stylus tip, remove the stylus protector (if your cartridge has a detachable one. 2.Release the ARM CLAMPand lift the TONE ARMoff the ARM REST. 3.Counter clockwise advancement of the COUNTERWEIGHTwill cause the cartridge side of the TONE ARMto be lowered, turning it clockwise will cause the opposite. Turn the COUNTERWEIGHT clockwise or counter clockwise as needed until the TONE ARMis balanced horizontally. You can easily tell this by watching for the point where the TONE ARM"floats" freely. 4.Place TONE ARMon ARM RESTand lock it in place with the ARM CLAMP. 5.With the TONE ARMlocked on the ARM REST, hold the COUNTERWEIGHTsteady with one hand while rotating the STYLUS PRESSURE RINGuntil the numeral "0" on the ring aligns with the center line on the TONE ARMrear shaft. The HORIZONTAL ZERO(0) balance should be completed. 6.Re-float the TONE ARMto ensure HORIZONTAL ZERO(0) balance. If zero balance has not been maintained, repeat steps 3 - 5. PRECAUTIONS: 1. All instructions should be read before using this equipment. 2. To reduce the risk of electrical shock, do not open the unit. Please refer all servicing...