VERIFYING OPERATION OF THE SYSTEM AFTER RECHARGING
The system can be regarded as performing to its full capabilites when the delivery pressure gauge shows the following
values:
Ambient temperature °C Delivery circuit pressure
27 12 bar
32 14 bar
35 15 bar
38 17 bar
40 18 bar
43 20 bar
The temperature values indicated are those likely to be encountered in the course of a typical twelve month period.
Having established that the system is operating correctly, detach the high and lower pressure hoses of the station from
the tractor and check again with the leak detector that there is no escape of fluid from any part of the system.
Directions for tightening air conditioning system pipeline fittings.
All fittings have an internal seal. Screw the two parts of the fitting together by hand until the nut is finger tight, then
holding the one part steady with a fixed wrench, apply a torque wrench to the nut and tighten to the value indicated in
the table.
systems
air conditioning
CAUTION: use only R 134a refrigerant as indicated on the data
plate attached to the compressor of the air conditioning sys-
tem.
Connecting the tractor to the air conditioning system recharge
and service station.
Type Thread Tightening torque
6 5/8 - 18 UNF 13,6 ÷ 20,3 Nm (1,4 ÷ 2,1 kgm)
7 3/4 - 16 UNF 33,5 ÷ 2393 Nm (3,3 ÷ 4,0 kgm)
8 7/8 - 14 UNF 35,5 ÷ 42,0 Nm (3,6 ÷ 4,3 kgm)
9 1 1/16 - 14 UNF 40,3 ÷ 47,5 Nm (4,1 ÷ 4,8 kgm)
86
8
371
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