Care and Maintenance
INLINE FILTER DRYERS
Use a new inline lter dryer on the input side of the G5Twin when pumping dirty refrigerant. Refrigerant acts
like a solvent and can collect dirt and debris when it is pumped out of a system. Failure to use an inline lter
dryer can cause damage to the compressor, and will void the warranty on your machine.
While specications may vary, most Size 032 lters will not be eective for more than 50 lbs. (22.6 Kg) of
refrigerant. Also, once refrigerant has been introduced into the inline lter, it may continue to wear down, and
may not have the same eective capacity if used across multiple jobs. Change the inline lter dryer regularly,
and consult the lter manufacturer for expected capacity. See Page 20 for ordering info.
SCREEN CLEANING AND REPLACEMENT
The G5Twin is equipped with a debris screen inside the input tting. This is the last line of defense for the
recovery machine against any debris that might make it past an inline lter. For best results it is recommended
to clean it before each use. If it becomes worn, replace it immediately.
Diagram 13
1. Unscrew Filter Cap from Input Port.
2. Remove screen from Filter Cap.
3. Clean screen and Filter Cap thoroughly. If the
screen is worn or damaged, replace it.
4. Check the O-ring that seals the Filter Cap to the
Input Port. If it is dry, apply a drop of refrigeration
oil. If it is damaged, replace it.
5. Place clean screen into Filter Cap and screw it
back onto the Input port.
PLANNED MAINTENANCE
You can use any standard refrigeration oil (mineral is ideal) to scavenge out dirt and debris, and recondition
the seals. Run the machine with no hoses connected and both valves open. Using a 1/4” port cap, ll it with
refrigeration oil and hold it up against the input port, allowing the G5Twin to suck it in. Place a towel below
the output port to catch any oil spray. This is very helpful aer recovery of burnout systems, and as regular
maintenance depending on the frequency of use.
The following test can be performed to verify that the G5Twin is operating normally:
1. Disconnect any hoses from the machine.
1-MINUTE BENCH TEST
18
G5TWIN OPERATION MANUAL
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2. With the input valve open and the output valve closed (Diagram 14),
turn the machine on.
3. Time how long it takes for the unit to pressure up and cut o. The
unit should pressure up and cut o at approximately 550 psi (38.6
Kg/cm
2
) in under 1 minute. Otherwise, the unit may be in need of
maintenance or repair.
Diagram 14
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