MASSEY FERGUSON MF 135 - Auxiliary Hydraulic System

Fig. 24 - Using Pressure Control
as well as 3-point hitch implements having
gauge wheels, may be operated in the Pres-
sure Control range; their operation proce-
dures are as follows:
Using Pressure Control with Pull-Type
Implements Onlx
For ground engaging pull-type imple-
ments, the implement working depth (as well
as raising the implement to the transport po-
sition), is controlled by a remote control
cylinder coupled to the auxiliary hydraulic
system. With the auxiliary hydraulic sys-
tem, lower the implement to the desired
working depth. At this time, the inner
quadrant lever should be in the lower pres-
sure area of the pressure range . As the
Tractor is driven forward, move the inner
quadrant lever upward on the quadrant until
adequate traction can be maintained on the
rear wheels.
IMPORT ANT: Transferring an ex-
cessive amount of implement
weight to the Tractor will not only
impair
steering traction but could
result in poor implement perform-
ance. Too little weight transfer
will result in wheel slippage and
excessive fuel consumption.
After adequate traction has been ob-
tained, the adjustable stop should be set
above the inner quadrant lever. This will
prevent the inner quadrant lever from being
moved accidentally above the desired set-
ting, which would exert unnecessary weight
transfer. If traction decreases due to a soft
spot in the field, the stop can be by-passed
to i ncrease weight transfer, as needed. Af-
ter pulling through the soft spot, the inner
quadrant lever can be returned to its origi-
nal setting .
When
making turns at the end of the field
with the implement and Tractor, Pressure
Cont r ol should be reduced as the implement
is lifted out of the ground by the auxiliary
hydraulic system, activating the implement
ground wheels. When operating in high pres-
sure area of the pressure range with imple-
ments that are not ordinarily lifted out of the
ground, Pressure Control should be reduced
while turning.
Constant Pumping Range {See Fig. 25)
When the inner quadrant lever is in the
constant pumping range, the Advanced Fer-
guson System Pump supplies 4. 8 U.S. - 4
Imp. gpm of hydraulic oil to the hydraulic
lift cover. An Auxiliary Hydraulic Control
Valve (Accessory) can be operated from this
oil supply.
AUXILIARY HYDRAULIC SYSTEM
An important feature of the Advanced
Ferguson Hydraulic System is the Auxiliary
Hydraulic.s. This system utilizes the hy-
draulic oil supply, 4. 8 gpm at 2000 engine
Fig. 25 - Using Constant Pumping
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