Mastercool 91498 UNIVERSAL VALVE CORE REMOVER_INSTALLER - Manuel (Page 2)

VALVE CORE INSTALLATION:
7/16”-20 (1/4”FL) Valve Core Connection (Fig. 1A)
1/2-20UNF /Japan Standard Valve Core Connection (Fig. 1B)
1. Insert the new valve core onto the tip of the shaft.
2. Tighten the shaft connection nut to the valve body.
3. Turn Valve Lever in the direction of flow so the shaft can go through the body.
4. Push the shaft forward and immediately tighten the locking nut to the shaft connection nut.
5. Turn the shaft clockwise until the valve core is installed completely.
6. Loosen the locking nut and back up the shaft.
7. Once the valve core is in place, pull the shaft back and close the valve.
8. Remove the shaft from the valve body.
9. SLOWLY open the valve knob to assure the valve core is in place. If the valve is in place, the pressure in
the tool will dissipate quickly. If the valve core is not in place, quickly close the valve and try again.
CHARGING SYSTEM WITHOUT VALVE CORE
The system can be “QUICK CHARGED” after removal of the valve core. Using manifold gauge set with valve
lever in CLOSED position, connect the correct charging hose to the valve (Fig. 2A or 2B). OPEN the valve and
charge the system. After charging, CLOSE the valve and disconnect the hose. Proceed with valve core
installation.
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WARNING
Wear Safety Goggles
Avoid Contact with Refrigerant