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. If R12 refrigerant is replaced with R134a, see page 831/10. Tractors which have
the earlier air conditioner, the heater and air conditioner contr ol panel is fitted on the front side of the cab roof. On
the later air conditioner, the control panel is placed on the RH side of the cab roof.
1136
Model Code Page
83. Air conditioner
1. 4. 1997
6000--8750 830 2
1. 1. 1994
Technical data
Air conditioner on Valmet 6000-- 8750 tractors:
Refrigerant R12 or R134a (SUVA)......................................................................
--- refrigerant filling in system 1,4 kg......................................................
Compressor Diesel Kiki DKS 15 CH:
--- Number of cylinders 6 pcs...........................................................
--- Cy l dia m x st rok e ø34mmx24mm..............................................................
--- Max r evs 7000 r/min.....................................................................
--- Lubricating oil if refrigerant R12 Freol DS---83P or Esso 2980..................................................
--- Lubricating oil if refrigerant R134a ZXL 100 PG (DH---PS)................................................
--- Lubricating oil volume 200 cm
3
(2,0 dl)..........................................................
Electro---magnetic clutch:
--- vol ta g e 12 V (DC).......................................................................
--- starting torque 50 Nm................................................................
--- power consumption 44 W (max)............................................................
--- clutch clearance 0,3---0,6 mm...............................................................
Drier
--- heat fuse melts at (not heat fuse if refrigerant R134a) +107...+118˚C................................
Pressure switch switches off at max pressure, R12 2,55±0,2 MPa....................................
Pressure switch switches off at max pressure, R134a 3,40±0,2 MPa..................................
--- switches on again when pressure drops 0,57±0,2 MPa...........................................
Pressure switch switches off at min pressure 190±20 kP a.........................................
--- switches on again when pressure rises up to 200±30 kP a.......................................
Thermostatic switch:
--- switch off when evaporator temperature is below +2...+3 ˚C...................................
--- switch on when evaporator temperature has risen up to (max cooling effect) +6...+7 ˚C............
--- switch on when evaporator temperature has risen up to (min cooling effect) about +19 ˚ C............
High and low pressures at engine revs 1500 r/min between temperatures +20...+25 ˚C:
--- low pressure 50---300 kPa..................................................................
--- hi g h p r ess ure 700---1400 kPa.................................................................