381303186 XCMG GR2605 motor grader duct fixing plate

381303186 XCMG GR2605 motor grader duct fixing plate

381303186 is a dedicated original factory duct fixing plate for the XCMG GR2605 motor grader cab air conditioning duct. It’s used for precise positioning and rigid fixation of the air conditioning inlet/outlet ducts and connectors. Equipped with a shock-absorbing and sealing structure, it resists high-frequency vibrations and dust intrusion on construction sites, preventing duct displacement, air leakage, and abnormal noise, ensuring stable airflow and cabin airtightness.

Core Functions and Benefits

Precise Duct Fixing: Original factory standard hole positions + positioning pin design, perfectly matching corresponding duct specifications and interfaces without the need for hole modification. This prevents duct displacement and interface detachment caused by vehicle operation vibration, and avoids unfiltered outside air entering the cab.

Leak Prevention and Noise Reduction: The mating surface is equipped with a sealing gasket, effectively blocking gaps between the duct outlet and the mounting cavity, reducing airflow loss, preventing condensation leakage, and suppressing duct resonance, thus reducing air conditioning operating noise.

Structural Reinforcement and Vibration Resistance: A high-strength steel plate base, paired with rubber shock-absorbing pads, absorbs high-frequency impacts during operation, preventing duct bending and joint cracking; it also strengthens the sheet metal in the duct installation area to prevent long-term deformation under stress.

Convenient Maintenance: The layout does not obstruct duct clips and maintenance points, facilitating quick disassembly, cleaning of the duct, or replacement of gaskets, improving maintenance efficiency.

Key Technical Parameters

Model: 381303186
Name: Duct Fixing Plate (Air Conditioning Duct Fixing Base Plate)
Compatible Model: XCMG GR2605 Grader
Material: High-strength cold-rolled steel plate, electrostatic powder coating for corrosion protection; equipped with nitrile rubber sealing gaskets + shock-absorbing pads
Installation Method: Double anti-misalignment fixing with bolts + positioning pins, direct original factory assembly
Operating Temperature: -40℃～+85℃
Features: Original factory specifications, zero error in hole positions, tight sealing, vibration-resistant and wear-resistant, long-lasting corrosion resistance, quick installation and removal

Replacement and Maintenance Points

Stop the machine and disconnect the power. Turn off the air conditioning system and disconnect relevant wiring harnesses and duct joints to avoid damage to pipes and sensors during operation.

Remove the old plate step by step according to the original torque. Thoroughly clean the mounting surface of dust, oil, and rust; check the duct joints for damage.

When installing the new plate, first insert the positioning pins, then tighten the bolts evenly in a crisscross pattern; ensure the sealing gasket is completely fitted, without wrinkles or misalignment.

Reinstall and tighten the duct connectors. Double-check that the ductwork is not twisted and that there is no looseness in the fixing. Power on the air conditioner and test the airflow for leaks and abnormal noises.

For dusty/humid conditions, it is recommended to check monthly. Replace aging gaskets and shock absorbers promptly. Replace severely corroded circuit boards with original parts.

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