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Summary of Contents for Valtra VALMETSERIES
- Page 1 VALTRA – VALMET MEGA MEZZO HI-TEC WORKSHOP MANUAL...
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Page 2: Electrical System
General Engine Electrical system Power transmission Brake system Steering sys- tem and Front axle Frame and Wheels Service Manual Cab and Shields Tractors Groups 10---100 Hydraulics Valtra Inc. 44200 Suolahti, Finland Tools... -
Page 3: Table Of Contents
Model Code Page 15. 6. 1992 83. Air conditioner 6000-- 8750 1. 1. 1994 Contents Air conditioner (Op no 830): Technical specifications ............Operation principle . -
Page 4: Technical Data
Model Code Page 1. 1. 1994 83. Air conditioner 6000-- 8750 1. 4. 1997 Technical data Important! These instructions present both the earlier air conditioner (refrigerant R12) and the later air conditioner which has refrigerant R134a (Suva). The compressor and the drier reservoir have markings stating which one of the refrigerants is in the system. -
Page 5: Compressor
Model Code Page 15. 6. 1992 83. Air conditioner 6000-- 8750 1. 1. 1994 Operating principle The air conditioner functions so that the refrigerant is continuously circulated in the system at which time it An air conditioner takes heat from the cab air when outdoor changes from liquid form into gaseous form. -
Page 6: Compressor
Model Code Page 15. 6. 1992 83. Air conditioner 6000-- 8750 1. 1. 1994 Evaporator High pressure gas High pressure liquid Low pressure liquid Low pressure gas Expan- sion Compressor valve Condenser Drier Circulation of the refrigerant begins from the compressor. The When the air conditioner is operating the low pressure hoses are cold and high pressure hoses are warm. - Page 7 Model Code Page 15. 6. 1992 83. Air conditioner 6000-- 8750 1. 1. 1994 Earlier air conditioner which has the control panel fitted in the front part of the cab roof. Figure 3. Air conditioner on Valmet 6100---8100 tractors. Wiring diagram: 1.
- Page 8 Model Code Page 15. 4. 1995 83. Air conditioner 6000-- 8750 1. 4. 1997 Later air conditioner (ECOND) which has the control panel fitted on the RH side of the cab roof. Refrigerant R134a. Picture 4. The following modifications have been made: 1.
- Page 9 Model Code Page 83. Air conditioner 6000-- 8750 1. 1. 1994 Expansion valve Figure 5. Expansion valve 1. Expansion valve 2. Hose from condenser 3. Inlet pipe to evaporator 4. Outlet pipe from evaporator 5. Hose to compressor suction side Temperature sensor Diaphragm When the compressor starts pressure drops in the evap-...
- Page 10 Model Code Page 83. Air conditioner 6000-- 8750 1. 1. 1994 Picture 6. The new air conditioner 4. Expansion valve 5. Evaporator. At the rear of the evaporator there is the recircu- lation grille. 1142...
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