Komatsu PC88MR-10 Shop Manual page 1406

80 Appendix
Precautions for disconnecting and connecting
refrigerant piping
Table of tightening torque for refrigerant pipe joint.
Tightening torque: Nm {kgm}
Thread size
8 to 12 {0.8 to 1.2} (compressor)
M6 x 1.0
4 to 7 {0.4 to 0.7} (condenser)
1. Engine
2. Compressor
3. Condenser
4. Receiver drier
5. Air conditioner unit
80-82 PC88MR-10