The genuine XCMG Position Sensor with OEM number 800172705 is a non-contact linear position transducer engineered for XCMG articulated dump trucks and heavy off-highway equipment. This sensor provides accurate feedback of hydraulic cylinder stroke, steering articulation angle, and suspension movement, enabling closed‑loop control for improved machine stability and productivity.
The XCMG Position Sensor 800172705 uses magnetostrictive or Hall-effect technology, meaning there is no physical contact between the moving magnet and the sensing element. This eliminates wear, friction, and contamination ingress that plague resistive potentiometers. The sensor withstands millions of cycles without accuracy loss, making it ideal for steering and suspension feedback on articulated trucks.
Field data from AD60 trucks shows that this sensor maintains 0.2% linearity after 10,000 operating hours, compared to 2% drift for contact-type sensors. The robust stainless steel housing and IP67 rating ensure reliable operation in mud, dust, and high-pressure washdown environments.
The sensor incorporates a 32-bit microcontroller that linearizes the raw signal and applies temperature compensation. The output is either 0.5–4.5V (ratiometric to supply) or 4–20 mA (current loop), allowing direct interface with XCMG ECUs. A CAN J1939 variant is available for high-speed digital networks.
Diagnostic features include short-circuit protection, reverse polarity protection, and an internal fault flag. If the magnet is out of range or the sensor electronics fail, the output goes to a pre-defined “limp‑home” voltage (0.25V or 4.75V) to alert the controller.
The 800172705 position sensor is factory-configured for the most common stroke lengths used in XCMG steering and suspension cylinders (300 mm standard). The rod-end eyelet fits the existing mounting bracket without modification. For other stroke lengths (up to 500 mm), custom calibration is available.
The 4-pin Deutsch connector uses standard pin assignment (1: supply, 2: ground, 3: signal+, 4: signal‑ for current loop, or N/C for voltage output). This matches the OEM harness on all AD‑series trucks, making replacement a 5‑minute job.
To install the Position Sensor 800172705, first disconnect battery power. Remove the old sensor (if present) and clean the mounting bracket. Attach the magnet carrier to the moving cylinder rod using the supplied clamps or threaded stud. Ensure the magnet is aligned with the sensor’s sensing axis and within the specified gap (2–5 mm).
Mount the sensor body rigidly to the fixed part of the cylinder using the eyelet or flange. The sensor cable must not be stretched or pinched. Connect the Deutsch plug and secure the locking tab. Reconnect power and cycle the cylinder fully to verify the output voltage changes linearly from 0.5V (fully retracted) to 4.5V (fully extended).
If the output is inverted, swap the magnet polarity or reprogram the ECU. If the range is offset, mechanical adjustment of the magnet position may be needed. Always use a scan tool to calibrate the endpoints in the ECU software.
Non-genuine sensors often use resistive wiper technology that wears out in less than 1 million cycles, causing erratic output and steering issues. Genuine XCMG 800172705 sensors are non‑contact and rated for > 50 million cycles. Counterfeit sensors may also lack proper sealing, allowing moisture ingress that corrodes internal electronics.
Another common issue with aftermarket sensors is electromagnetic interference (EMI) due to missing shielding. XCMG sensors are fully shielded and tested to ISO 11452‑2 (50 V/m). Always look for the XCMG part number laser‑etched on the housing and purchase only from authorized distributors.
Accurate position feedback enables precision steering and suspension control, reducing tire wear and fuel consumption. On AD60 trucks, replacing worn potentiometric sensors with the 800172705 non‑contact sensor reduced steering‑related downtime by 75% and improved tire life by 12% due to more consistent alignment.
The sensor’s high resolution also allows predictive maintenance by detecting increasing friction or internal leakage in cylinders before failure occurs. Early detection saves thousands in emergency repairs and lost production.
Every XCMG Position Sensor 800172705 is manufactured in an ISO 9001:2015 and IATF 16949 certified facility. Each unit undergoes 100% testing: full stroke calibration at 20°C, thermal cycling (-40°C to +105°C), and EMC immunity testing. XCMG provides a 24‑month warranty against manufacturing defects.
Counterfeit sensors not only void equipment warranties but also pose safety risks (e.g., uncommanded steering movement). Protect your operators and your fleet – always insist on genuine XCMG parts and verify the holographic authenticity label.
