Service and Repair Manual
December 2019
Limit Switches and Angle Sensors
190
SX
™
-150
Part No. 1300669GT
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-150
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Page 229: ...December 2019 Service and Repair Manual 217 Control Circuits Horn ...
Page 230: ...Service and Repair Manual December 2019 218 SX 150 Part No 1300669GT Control Circuits Horn ...
Page 231: ...December 2019 Service and Repair Manual Part No 1300669GT SX 150 219 Control Circuits Power ...
Page 232: ...Service and Repair Manual December 2019 220 Control Circuits Power ...
Page 233: ...December 2019 Service and Repair Manual 221 Control Circuits Can Bus ...
Page 234: ...Service and Repair Manual December 2019 222 SX 150 Part No 1300669GT Control Circuits Can Bus ...
Page 236: ...Service and Repair Manual December 2019 224 Control Circuits Deutz TD2011L04i Engine ...
Page 237: ...December 2019 Service and Repair Manual 225 Control Circuits Deutz TD 2 9 L4Engine ...
Page 240: ...Service and Repair Manual December 2019 228 Control Circuits Perkins 1104D 44T Engine ...
Page 241: ...December 2019 Service and Repair Manual 229 Control Circuits Perkins 854F 34T Engine ...
Page 244: ...Service and Repair Manual December 2019 232 Control Circuits Axle Extend Retract ...
Page 245: ...December 2019 Service and Repair Manual 233 Control Circuits Steering ...
Page 247: ...December 2019 Service and Repair Manual Part No 1300669GT SX 150 235 Control Circuits Propel ...
Page 248: ...Service and Repair Manual December 2019 236 Control Circuits Propel ...
Page 249: ...December 2019 Service and Repair Manual 237 Control Circuits Turntable Rotate ...
Page 252: ...Service and Repair Manual December 2019 240 Control Circuits Boom Up Down ...
Page 253: ...December 2019 Service and Repair Manual 241 Control Circuits Boom Extend Retract ...
Page 261: ...December 2019 Service and Repair Manual 249 Control Circuits Recovery PLD ...
Page 264: ...Service and Repair Manual December 2019 252 Control Circuits Telematics ...
Page 265: ...December 2019 Service and Repair Manual 253 Generator Receptacle Wiring ANSI CSA ...
Page 268: ...Service and Repair Manual December 2019 256 Generator Receptacle Wiring CE ...
Page 269: ...December 2019 Service and Repair Manual 257 Perkins 1104D 44T Engine Electrical Schematic ...
Page 272: ...Service and Repair Manual December 2019 260 Perkins 854F 34T Engine Electrical Schematic ...
Page 273: ...December 2019 Service and Repair Manual 261 Perkins 854F 34T Engine Harness ...
Page 276: ...Service and Repair Manual December 2019 264 Deutz TD 2 9 L4 Engine Electrical Schematic ...
Page 277: ...December 2019 Service and Repair Manual 265 Deutz TD 2 9 L4 Engine Harness ...
Page 279: ...December 2019 Service and Repair Manual 267 Hydraulic Schematic ...
Page 280: ...Service and Repair Manual December 2019 268 Hydraulic Schematic ...
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