Domestic Series 7000 Hydraulics
3
1.14. The steering unit distributes pressure to the
steering cylinder according to the position of the
steering wheel. On Sauer pumps this involves
the ports labeled “L” and “R”. See Figure 1.12.
1.15. On Ross pumps, this involves the ports labeled
“LT” and “RT”. See Figure 1.14.
Figure 1.14
Sauer steering unit:
note labeled ports
Figure 1.15
RT
LT
OUT
IN
AUX
1.16. The power steering unit is first in line, and has
priority over the rest of the system. From the
steering unit, the fluid may follow one of two
return paths:
1.17. The fluid may pass through the return manifold,
through the oil cooler, then back to the transmis-
sion. See Figure 1.17.
1.18. The oil cooler is located on the front of the radia-
tor. See Figure 1.18.
Figure 1.17
Return
manifold
To cooler
From steering unit
“T” port on Sauer
“OUT” port on Ross
Unused ports
capped
valve
From lift
Figure 1.18
Oil
cooler
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