October 2016
Service and Repair Manual
Limit Switches and Angle Sensors
Part No. 1263382
SX-135 XC
197
Types of Limit Switches
There are two types of limit switches, found in
various locations throughout the machine:
mechanical-type
operational/safety
switches and
rotation
or
angle
sensors. As in aircraft, which
features redundant safety systems, each
mechanical operational switch is backed up with a
separate, independently functioning safety switch.
The mechanical-type
operational
or
safety
switches are used to sense a positive
displacement or movement of the limit switch
actuator, or arm, as the machine moves through its
range of operational functions. The
rotation
or
angle
sensors utilize Hall Effect technology and
must be calibrated when replaced. Included in this
group are envelope limit switches which sense the
extended length and angle of the booms and
rotational position of the turntable.
An example is the drive enable limit switch, which
disables the drive function anytime the boom is
rotated past the rear tires, indicated by the 'circle'
end of the drive chassis.In some cases, the engine
will be stopped if safety parameters are exceeded.
Numbering Legend
LS
FA
1
L
O
LS
Limit
Switch
FA
Front
Axle
Circuit
Number
L
Load
moment
O Operational
LT Stringpot
RA
Rear
Axle
A
Angle
S
Safety
RS
Rotary
Sensor
LF
Left
Front
D
Down
LR
Left Rear
E Extend
RF
Right
Front
R Retract
RR
Right
Rear
J
Jib Boom
P
Boom
T
Turntable
Summary of Contents for Genie SX-135 XC
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Page 238: ...Service and Repair Manual October 2016 228 Perkins 1104D 44T Engine Electrical Schematic ...
Page 241: ...October 2016 Service and Repair Manual 231 Perkins 1104D 44T Engine Electrical Schematic ...
Page 242: ...Service and Repair Manual October 2016 232 Perkins 854F 34T Engine Electrical Schematic ...
Page 245: ...October 2016 Service and Repair Manual 235 Perkins 854F 34T Engine Electrical Schematic ...
Page 246: ...Service and Repair Manual October 2016 236 Perkins 854F 34T Engine Harness ...
Page 248: ...Service and Repair Manual October 2016 238 SX 135 XC Part No 1263382 ...
Page 250: ...Service and Repair Manual October 2016 240 Deutz 2 9TF Engine Harness ...
Page 251: ...October 2016 Service and Repair Manual 241 Deutz TD2 9 Engine Electrical Schematic ...
Page 254: ...Service and Repair Manual October 2016 244 Deutz 2 9TF Engine Electrical Schematic ...
Page 255: ...October 2016 Service and Repair Manual Part No 1263382 SX 135 XC 245 Hydraulic Schematic ...
Page 256: ...Service and Repair Manual October 2016 246 Hydraulic Schematic ...
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