300SDL (126.125) L6-3.0L DSL Turbo (603.961) (1987)
Figures 2 and 3
9.
Refill recycled R12 once again into A/C system.
10.
Operate A/C system again, as in above steps 7-13 for approx. 10 minutes.
CAUTION:
Should the A/C compressor become noisy, stop engine and continue with "D. Replacing Receiver Drier.
11.
Using air conditioning service equipment, evacuate the R12 at high. and low-pressure sides (A, Figure 2 and B, Figure 3) of A/C system for 45
minutes.
Note:
A/C service equipment should be able to pull at least 29.2" of vacuum.
CAUTION:
At this point, R12 is not be used in A/C system again.
D.
Replacing Receiver/Drier
Please see SMS, Repair Instructions, Job No 83-540.
E.
Installation of Service Valves
CAUTION:
Prior to the installation of the angled service valve (Figure 6) or adapter hose (4, Figure 7) the existing Schrader valve core (arrow, Figure 4) located
in A/C line must be removed.