Compound pressure gauge
Handle Lo
Charge hose (For R410A only)
Service port
(Valve core (Setting pin))
Packed valve at gas side
Pressure gauge
Manifold valve
Handle Hi
(Keep fully closed)
Charge hose 
(For R410A only)
Vacuum pump adapter
for
Vacuum pump
Handle position
Handle
Closed completely | Opened fully |
*1. Use the vacuum pump, vacuum pump adapters,
and gauge manifold referring to the manuals attached to each tool before using them. For the vacuum pump, check oil is filled up to the specified line of the oil gauge.
How to open the valve
Valve unit
Handle
Pull out the handle and using cutting pliers, etc. turn it counterclockwise by 90˚. (Open fully)
Charge port
Flare nut
Valve unit
Push in handle.
Charge port
Flare nut
*2. While the air is purged, check again that the connecting port of charge hose, which has a projection to push the valve core, is firmly con- nected to the charge port.
Valve handling precautions
•Open the valve stem or the handle until it strikes the stopper. It is unnecessary to apply further force.
•Securely tighten the cap with a torque wrench.
•Cap tightening torque
|
| Ø6.4 | 14 to 18N•m (1.4 to 1.8kgf•m) |
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Valve size |
| Ø9.5 | 33 to 42N•m (3.3 to 4.2kgf•m) |
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| Ø12.7 | 33 to 42N•m (3.3 to 4.2kgf•m) | |
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| Ø15.9 | 20 to 25N•m (2.0 to 2.5kgf•m) |
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Charge port |
| 14 to 18N•m (1.4 to 1.8kgf•m) | |
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