New Holland TS-100A Assembly & Instruction Manual page 102

CONTROL VALVE - INSTRUMENTATION
Maverick Instrumentation
Instrumentation The Maverick Boom uti-
lizes instrumentation for certain decision making
activities. Listed below are the sensors included on
this unit. Tank Temperature Sensor, Charge Pres-
sure Filter Switch, Valve Pressure Filter Switch and
Return Filter Switch.
Tank Temperature Sensor. The tank tem-
perature sensor monitors the fluid temperature in
the area of the pump suction screens. the tempera-
ture is real time and is used on the network to
accomplish certain objectives. The first, is to display
on the interface while the cutter circuit is operating.
The second, is to be used to control the electric fan
on the hydraulic cooler. At any time the fluid level
reaches 150° F. the fan is activated and remains
activated until fluid temperature drops to or below
the desired temperature (See Figure 12).
The Charge Pressure Filter Switch The
charge pressure filter switch is located at the filter in
the charge loop on the hydrostatic pump (See Figure
13). The sensor monitors the back pressure created
by the filter element when in use. When the back
pressure reaches a setting of 50 psi the switch will
trigger and prompt the operator for a filter element
change of filter element.
The Valve Pressure Filter Switch The
Valve pressure filter switch is located at the pres-
sure filter in the valve pressure circuit, between the
closed center load sense pump and the control
valve (See Figure 14). The sensor monitors the back
pressure created by the filter element when in use.
When the back pressure reaches a setting of 50 psi
the switch will trigger and prompt the operator for a
filter element change.
WARNING! This filter does not have a by-
pass. The element must be changed at the
appropriate time to avoid element danmage and
system contamination.
New Holland (NH TS-100A, 115A, 125A, 135A Asy. Man) 01/05
© 2005 Alamo Group Inc.
:
FIGURE 12
FIGURE 13
FIGURE 14
Section 10 - 8