Land Rover Defender 90 110 Workshop Book 5 Rover

AIR CONDITIONING - L.H. & R.H. STEERING 
- 2. Adjust both service  valve seats to the mid 
(Test)  position. 
*F>, I .; 4. NOTE: If it is necessary to disconnect  the compressor 
hoses,  the compressor  should  be sealed  by fully  closing 
the  relevant  service  valve  (turn  fully  clockwise). 
It is 
essential to ensure  that  both  service  valves  are open 
before  operating  the  compressor.  Similarly  any other 
component  of the  refrigeration system should  be capped 
immediately when...

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82 
7. The low  side  gauge  should  indicate  a vacuum  of 
660 
mm (26  in) Hg  within  five minutes. 
8. Whilst  the system is evacuating, fill the  charging 
cylinder  by opening  the refrigerant  drum 
valvc. 
9. Open the valve  at the  base  of the  charging  cylinder 
and 
fill the  cylinder  with 1,0 kg (2.2 Ib) of 
refrigerant.  Liquid refrigerant will be observed 
rising  in 
the sight glass. 
10. As the refrigcrant stops  filling  the cylinder,  opcn 
the  valve 
at the top of the cylinder...

AIR CONDITIONING - L.H. & R.H. STEERING IS21 
i( 13. Crack the suction valve charging  line at the service 
port  on  the  compressor  to allow  an escape 
of 
refrigerant,  at  the same  time observing thc sight 
glass 
in the  charging cylinder. A slight  drop in the 
level  should  be allwwed before  closing  the 
connection  at the  compressor. 
1. 
14. Close  the high pressure  valve (No. 2). 
15. Close valve No. 3. 
16. Close  the valve  at the  top  of the charging  cylinder. 
14-10 
ST 1397M 
17....

182 I AIR CONDITIONING - L.H. & R.H. STEERING 
Ambient 
Temperature 
C OF 
16  60 
26,7 80 
38  100 
433 110 
5. Insert the probe  between the magnetic  clutch and 
compressor  to check  the shaft  seal for leaks. 
6. Check all service  valve conncctions, valve plate, 
head  and base  plate  joints and  back seal plate. 
7.  Check  the  condenser  for  leaks at the  pipe 
connections. 
8. If  any  leaks  are found,  the system  must  be 
depressurised  before  attempting rectification. 
If 
repairs by...

AIR CONDITIONING- L.H. & R.H. STEERING 1821 
COMPRESSOR Petrol model 
Removal , .I /:. . ./. m 
1. Place  the vehiclc  in a  ventilated  area away  from 
open  flames  and heat sources. 
2.  Stop  the engine  and  secure the bonnet  in an  open 
position. 
3.  Remove  the  caps from  the  compressor  service 
valves  and connect  the gauge  set for  evacuating. 
4. Evacuate  the system  as previously  described. 
5. Open fully (turn  anti-clockwise)  the compressor 
service  valves and disconnect  the...

El AIR CONDITIONING - L.H. & R.H. STEERING 
Refitting 
Drive  belt adjustment 
Diesel  only 
16. Ensure  all adjustment  bolts  associated  with the 
compressor  are slack. 
17. Alter  the position of the  compressor  to provide  a 
belt  tension  of 4
-6 mm (0.19-0.25  in). Secure all 
compressor  adjustment bolts  and recheck the 
tension. 
4-cylinder  Petrol only 
18. Ensure  all adjustment  bolts associated  with the 
compressor 
(1) and  the lower  pulley  pivot fixing  (2) 
are  slack. 
19. Adjust...

AIR CONDITIONING- L.H. & R.H. STEERING 1821 
CONDENSER AND RECEIVER/DRIER 
Removal 
1. Place the vehicle in a well  ventilated  arca. 
2. Stop the engine,  open and secure the  bonnet. 
3. Remove the caps  from  the compressor  service 
valves.  Connect  the  gauge  set 
for evacuation,  and 
evacuate  as detailed  earlier. 
4. Having  evacuated  the air conditioning  system, 
open  fully (turn  anti
-clockwise)  the  compressor 
service  valves and disconnect  the gauge  set. 
Replace 
all caps  to...

1821 AIR CONDITIONING - L.H. & R.H. STEERING 
EVAPORATOR - LH steering models 
NOTE: It is only  necessary  to evacuate  the air 
conditioning  system  when  removing  the  evaporator 
matrix  or 
to change the  expansion valve. 
Removal 
5 1. Place  the vehicle in a  ventilated  area away  from 
2.  Stop  the  engine  and  secure  the  bonnet  in an  open 
open 
flames  and heat  sources. 
position. 
Refitting 
18. Reverse  procedures  17 to 15 using a new  receiver/ 
drier  unit. 
19. Connect  the high...

AIR CONDITIONING - L.H. STEERING 
:.- 10. Whilst supporting  both  unions with suitable 
spanners  unscrew the high  and low pressure  air 
conditioning pipes 
to the evaporator.  Cap the pipe 
ends  and evaporator  inlets to prevent  dirt  or 
moisture  entering the  system. 
18. Remove the  screw,  releasing the relay connector 
block. 
19. All wiring on the  top  of the  evaporator  is now 
disconnected with the exception of the earth lead, 
this 
is disconnected when  the evaporator mounting 
block...

IF1 AIR CONDITIONING - L.H. STEERING 
ST1416M 
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