FLANGE WITH GUIDE PIN
Check the new O-ring for damage and lubricate it using compressor oil. Tighten the nut to specified torque.
Scheme 27
| Size | Tightening torque [N.m (kg.m, lb.ft)] | |
|---|---|---|
| General bolt, nut | ||
| 4T | 7T | |
| M6 | 5 - 6 (0.5 - 0.6, 3.6 - 4.3) | 9 - 11 (0.9 - 1.1, 6.5 - 7.9) |
| M8 | 12 - 14 (1.2 - 1.4, 8.7 - 10) | 20 - 26 (2.0 - 2.6, 14 - 18) |
| M10 | 25 - 28 (2.5 - 2.8, 18 - 20) | 45 - 55 (4.5 - 5.5, 32 - 39) |
| Size | Flange bolt, nut | |
| 4T | 7T | |
| M6 | 5 - 7 (0.5 - 0.7, 3.6 - 5.0) | 8 - 12 (0.8 - 1.2, 5.8 - 8.6) |
| M8 | 10 - 15 (1.0 - 1.5, 7 - 10) | 19 - 28 (1.9 - 2.8, 14 - 20) |
| M10 | 21 - 31 (2.1 - 3.1, 15 - 22) | 39 - 60 (3.9 - 6.0, 28 - 43) |
GENERAL AND FLANGE BOLT TIGHTENING TORQUE SPECIFICATION
Note. T means tensile intensity, which is stamped on the head of bolt only numeral.
HANDLING TUBING AND FITTINGS
The internal parts of the refrigeration system will remain in a state of chemical stability as long as pure moisture-free refrigerant and refrigerant oil are used. Abnormal amounts of dirt, moisture or air can upset the chemical stability and cause problems or serious damage.
THE FOLLOWING PRECAUTIONS MUST BE OBSERVED
- When it is necessary to open the refrigeration system, have everything you will need to service the system ready so the system will not be left open any longer than necessary.
- Cap or plug all lines and fittings as soon as they are opened to prevent the entrance of dirt and moisture.
- All lines and components in parts stock should be capped or sealed until they are ready to be used.
- Never attempt to rebind formed lines to fit. Use the correct line for the installation you are servicing.
- All tools, including the refrigerant dispensing manifold, the gauge set manifold and test hoses, should be kept clean and dry.
Scheme 28
Scheme 29
Scheme 30
REFRIGERANT RECOVERY
Use only service equipment that is U.L-listed and is certified to meet the requirements of SAE J2210 to remove HFC-134a (R-134a) from the air conditioning system.
| CAUTION | Air conditioning refrigerant or lubricant vapor can irritate your eyes, nose, or throat. Be careful when connecting service equipment. Do not breathe refrigerant or vapor. |
If accidental system discharge occurs, ventilate work area before resuming service.
Additional health and safety information may be obtained from the refrigerant and lubricant manufacturers.
Scheme 31
Scheme 32
- Connect an R-134a refrigerant Recovery/Recycling/Charging System (A) to the high-pressure service port (B) and the low-pressure service port (C) as shown, following the equipment manufacturer's instructions.
- Measure the amount of refrigerant oil removed from the A/C system after the recovery process is completed. Be sure to install the same amount of new refrigerant oil back into the A/C system before charging.
SYSTEM EVACUATION
Use only service equipment that is U.L-listed and is certified to meet the requirements of SAE J2210 to remove HFC-134a (R-134a) from the air conditioning system.
| CAUTION | Air conditioning refrigerant or lubricant vapor can irritate your eyes, nose, or throat. Be careful when connecting service equipment. Do not breathe refrigerant or vapor. |
If accidental system discharge occurs, ventilate work area before resuming service.
Additional health and safety information may be obtained from the refrigerant and lubricant manufacturers.
Scheme 33
- When an A/C System has been opened to the atmosphere, such as during installation or repair, it must be evacuated using an R-134a refrigerant Recovery/Recycling/Charging System. (If the system has been open for several days, the receiver/dryer should be replaced, and the system should be evacuated for several hours.)
- Connect an R-134a refrigerant Recovery/Recycling/Charging System (A) to the high-pressure service port (B) and the low-pressure service port (C) as shown, following the equipment manufacturer's instructions.
- If the low-pressure does not reach more than 93.3 kPa (700 mmHg, 27.6 in.Hg) in 10 minutes, there is probably a leak in the system. Partially charge the system, and check for leaks (see «LEAK TEST»(ref-378984-S09959661602010113000000) .).
- Remove the low pressure valve from the low-pressure service port.
SYSTEM CHARGING
Use only service equipment that is U.L-listed and is certified to meet the requirements of SAE J2210 to remove HFC-134a (R-134a) from the air conditioning system.
| CAUTION | Air conditioning refrigerant or lubricant vapor can irritate your eyes, nose, or throat. Be careful when connecting service equipment. Do not breathe refrigerant or vapor. |
If accidental system discharge occurs, ventilate work area before resuming service.
Additional health and safety information may be obtained from the refrigerant and lubricant manufacturers.
Scheme 34
- Connect an R-134a refrigerant Recovery/Recycling/Charging System (A) to the high-pressure service port (B) as shown, following the equipment manufacturer's instructions.
- Add the same amount of new refrigerant oil to system that was removed during recovery. Use only specified refrigerant oil. Charge the system with 17.6 ± 0.88 oz. (500 ± 25g) of R-134a refrigerant. Do not overcharge the system the compressor will be damaged.
HANDLING OF OIL
- The oil should be free from moisture, dust, metal powder, etc.
- Do not mix with other oil.
- The water content in the oil increases when exposed to the air. After use, seal oil from air immediately. (HFC-134a Compressor Oil absorbs moisture very easily.)
- The compressor oil must be stored in steel containers, not in plastic containers.
COMPRESSOR OIL CHECK
The oil used to lubricate the compressor is circulating with the refrigerant.
Whenever replacing any component of the system or a large amount of gas leakage occurs, add oil to maintain the original amount of oil.
Oil total volume in system
120±10cc (4.05±0.34 fl.oz) - α engine