Valeo TMX, Service Manual

Page 1: ...SERVICE MANUAL Valeo TMX Copyright 2020 Valeo LTD All rights reserved...

Page 2: ...s in speci cations and procedures at any time without notice VALEO INC The following warning signs are used in this service manual These are extremely important to ensure safe operation and to prevent...

Page 3: ...Running in operation 3 5 1 Compressor running in 3 5 2 Magnetic clutch running 3 6 Leak test 3 7 Refrigerant charging 3 8 Installation precautions 3 9 Piping precautions 4 Troubleshooting 4 1 Compress...

Page 4: ...0 5 double headed pistons DIRECTION OF ROTATION Clockwise BORE 30 5 mm 1 2 in STROKE 21 4 mm 0 84 in SHAFT SEAL Lip seal type LUBRICATION SYSTEM Splash lubrication REFRIGERANT R134a or R1234yf OIL TYP...

Page 5: ...on limit at installation The compressor must be installed on the vehicle within the range shown on Table 2 Table 2 21 2 16 0 10 0 18 0 38 MPaG 0 20 0 28 0 48 MPaA 6 28 61 14 25 58 PSIG 29 40 69 PSIA T...

Page 6: ...ion Pressure Ps 0 18 MPaG Subcooling temperature SC 5 C Super heat temperature SH 10 C Valeo TMX performance data table R134a Valeo TMX performance data graph R134a Nc r min 1000 1500 2000 2500 3000 V...

Page 7: ...rotated by the drive shaft and moves the pistons back and forth The pistons in the cylinders are mounted on the swash plate through hemispherical shoes Each piston has a compression head at each end...

Page 8: ...e a week 2 Do not drive through water Water may damage the magnetic clutch thus preventing normal operation 3 Do not allow a compressor that has not been used for a long period to become wet 4 Always...

Page 9: ...a Keep the work area clean Select a work area with adequate ventilation Keep open ame and in ammables away from the vehicle in which the air conditioner is being installed Fire is particularly dangero...

Page 10: ...nto the air When removing refrigerant from the air conditioner system always use a refrigerant recovery unit made especially for HFC 134a or HFO 1234yf Compressor handling Do not strike or unnecessari...

Page 11: ...off valves are removed with the compressor 2 Remove the compressor 3 Drain the oil from the compressor and close all open connections immediately 4 Check the oil quantity and the degree of contaminat...

Page 12: ...e container is open Therefore always seal the container immediately after use Oil contamination Unlike engine oil no cleaning agent is added to the compressor oil Even if the compressor is run for a l...

Page 13: ...be removed when draining the compressor as some remains as an oil lm on the inside of the compressor and the system components Therefore refer to the table at left when recharging the compressor with...

Page 14: ...ischarge tting with the exible hose 3 Connect the two connector ports using a exible hose 4 Run the compressor at 500r min for 30 minutes to 60 minutes This operation may be performed by an electric m...

Page 15: ...OFF cycle at least 50 times ON for 10 seconds and OFF for 10 seconds Leak test The compressor must be checked for refrigerant leaks after it is repaired The procedure is as follows 1 Fill the compres...

Page 16: ...different service tool thread sizes caution stickers and labels In order to prevent a liquid charge and greatly increase risks of compressor damage do not shake or turn the refrigerant bottle upside d...

Page 17: ...below 1 Loosen the discharge side connector s cap and gently release nitrogen gas N2 from the compressor 2 Turn the magnetic clutch armature plate several times by hand to distribute the oil which ha...

Page 18: ...base of the companion pieces then hand tighten the nut as much as possible Then tighten to the speci ed torque CAUTION Always use the speci ed oil for HFC 134a and HFO 1234yf systems to coat the O rin...

Page 19: ...oms can be classi ed in the following categories 1 Insu cient cooling capacity 2 Abnormal noise 3 Smoke In case of insu cient cooling capacity we recommend that you prepare a gauge manifold to measure...

Page 20: ...amage Refrigerant shortage Lead wire short circuit or wiring connector not seated properly Magnetic clutch damage Magnetic clutch air gap too wide Low magnetic clutch voltage Thermal fuse activated by...

Page 21: ...Counter measure Replace compressor Fix the refrigerant leakage then ll with refrigerant until reaching the right amount Check the voltage of the battery or replace the magnetic clutch Replace the mag...

Page 22: ...ue Symptom Potential cause Counter measure Replace the magnetic clutch Replace magnetic clutch Check the voltage of battery or replace magnetic clutch Magnetic clutch damage Air gap too wide Magnetic...

Page 23: ...Adjust belt tension Belt alignment is not correct Magnetic clutch belt is greasy Magnetic clutch belt tension is loose The magnetic clutch slips does not engage when the compressor is running B Magnet...

Page 24: ...d suction pressures are low Refrigerant shortage Connect gauge manifold to cycle Recover refrigerant then re ll with the right amount of refrigerant Receiver dryer is clogged Temperature difference be...

Page 25: ...ve refrigerant ow control the thermal sensing tube is not closely in contact with the evaporator pipe Adjustment or replacement Air mixed in refrigeration cycle Just after compressor stops discharge p...

Page 26: ...ley assembly 6 Coil Screw 7 Field coil 8 Compressor body Exploded view of Magnetic Clutch 1 2 3 4 5 6 7 8 Tightening torques Air Gap between Armature plate and Pulley Center Bolt Coil Screw 14 5 15 5...

Page 27: ...Step 2 Remove the armature plate by hand or using a M8 screw if necessary Step 3 Remove the snap ring using external snap ring pliers Step 4 Position the center pulley puller at the end of the drives...

Page 28: ...sive heat the armature plate and pulley must be replaced 2 Check the appearance of the pulley assembly If the pulley grooves show excessive wear due to slippage both the pulley and armature plate must...

Page 29: ...crews to the speci ed torque p 26 Step 2 Carefully place the the wire harness bushing Step 3 Install the pulley assembly using a pulley installer p 31 and an hand press Step 4 Install the snap ring be...

Page 30: ...the armature assembly down by hand Step 6 Install the center bolt and tighten the bolt to the speci ed torque p 26 using a drive plate holder p 31 Step 7 Use a feeler gage to check clutch air gap p 31...

Page 31: ...bushing remover To remove lead wire Pulley installer To install pulley Pulley puller Center pulley puller To remove pulley Other regular service tools needed M8 screw To remove armature Filler gauge T...

Page 32: ...sors europe sales mailbox valeo com Americas Address 480 Wrangler Drive Suite 200 Coppell TX United States Tel 1 972 426 6639 Mail ths dal1 sales mailbox valeo com India Address B300 A 124 A INDOSPACE...