380SL (107.045) V8-3.8L (116.960) (1982)
/v8-3.8l_(116.960)/Page-962002.png)
Primary pump
24 Primary pump check valve
64 Lubricating pressure
66 Secondary pump shaft valve
67 check valve
70 Primary pump
72 check valve
73 Centrifugal
74 Drive for governor
75 Secondary pump
76 Secondary pump cutoff piston
77 Oil filter
A Working pressure
SR Lubricating pressure
B2 Connection to shift side B2
RA Excess pumped oil flow back through nozzle (D) of working pressure control valve into suction passage of primary pump
D Nozzle
a,b, Restrictions
c,d,e
f
Secondary pump drive
g Compression spring
o Oil sump outlet
The primary pump (70) (internal gear pump or crescent moon pump) is housed in the front transmission cover. It is driven by the engine through
the drive flange of the torque converter.
The primary Pump (70) operates so long as the engine is turning and supplies pressurized oil to the entire hydraulic system.
The drive (f) of the secondary pump (75) is switched off by the cut-off piston (76) by means of the pressure Of the primary pump (70).
