BOLT 4L3842 - Caterpillar

Machine Configuration
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The muffler sits underneath the hood at the rear of the machine. The rear corners of the machine hood are rounded in order to aid visibility. Four ROPS posts increase the protection of the operator. Also, the four ROPS posts strengthen the machine frame. The cab structure uses bar stock for added strength and weight. Rubber mounting pads provide durable vibration dampening.Hydrostatic Drive System of the Power Train
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The 953C 2ZN1750-UP Track Loader is equipped with variable displacement piston pumps and piston motors. The electronic control module (ECM) regulates the displacement of both the drive pumps and drive motors in order to control the machine speed. The 953C requires less oil flow in order to achieve the high speeds that increase power train efficiency.
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The parking brakes are not used to stop the machine. Slowing or stopping the machine is done by reducing or stopping the flow of oil from the drive pumps to the drive motors. Braking of the machine is caused by hydrostatic braking of the motors that drive the tracks. When the machine has stopped, the spring applied parking brakes are applied.
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The 953C 2ZN1750-UP uses an electronic control module (ECM) to regulate the hydrostatic drive system. This electronic control system diagnoses the hydrostatic drive system. The system uses the ECM in order to monitor the demands for power that allow the following benefits: maximum efficiency, fuel economy and extended life of power train components. When the operator uses the Caterpillar Monitoring System, rapid electronic calibrations of the drive pumps and drive motors is possible. The ECM continuously uses collected data in order to make diagnostic procedures faster and easier for the operator and the technician.Implement System
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The implement configuration on the 953C 2ZN1750-UP Track Loader includes two-way hydraulics. The two-way hydraulics control the general purpose bucket and the lift arms. The 953C 2ZN1750-UP has one tilt cylinder and two lift cylinders. Three-way hydraulics are an option that is available with a multipurpose bucket or with a ripper. The main control valve is mounted in an internal position in the hydraulic tank.Caterpillar Monitoring System
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The Caterpillar Monitoring System contains the following components:
Four gauges (1)
Nine alert indicators and flasher (2)
Display area (3) The Caterpillar Monitoring System continuously monitors the machine systems. Also, the Caterpillar Monitoring System serves as the interface between the operator and the hydrostatic transmission ECM. The Caterpillar Monitoring System gathers the following information: hour meter data, rpm, override pressure and diagnostic data. The ECM receives this data from the following sources: sensors, switches and other components. The Caterpillar Monitoring System performs the following three functions.
Calibrating the hydrostatic system
Warning the operator of service codes
Troubleshooting service codesThe Caterpillar Monitoring System alerts the operator with three Category of warnings:Warning Category 1 - No immediate effect or harmful effects to the componentsWarning Category 2 - Possible damage to the componentsWarning Category 3 - Possible severe damage to the componentsThe operator responds to Warning Category 2 and Warning Category 3 with action.See the Operation and