AP2D36 Pilot Pump for excavators spare parts

Short Description:

The AP2D36 pilot pump is a high-precision dedicated hydraulic gear pilot pump perfectly matched with the AP2D36 main pump, widely applied to 6–8 ton small excavators including Doosan DH60, DX60, Hyundai R60-7/R60-9.

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Product Detail

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description

The AP2D36 pilot pump adopts upgraded reinforced heavy-duty gear pump structure, professionally optimized for the positive flow control logic and high-frequency frequent operation characteristics of AP2D36 main pump supporting small excavators. Different from ordinary universal pilot pumps with poor precision and fast attenuation, this model strictly calibrates installation dimensions and hydraulic parameters according to the original factory supporting standards of AP2D36 main pump, with ultra-low internal leakage and extremely stable flow-pressure output. Equipped with high-hardness wear-resistant alloy gear pair, reinforced anti-fatigue bearing assembly and high-temperature aging-resistant composite sealing system, it can maintain stable pilot pressure output for a long time under frequent start-stop, compound action switching and cyclic hydraulic impact. The high-rigidity integral pump body has excellent vibration resistance, dust resistance and sediment erosion resistance, perfectly adapting to municipal renovation, earthwork backfilling, rural foundation construction and other harsh working environments.

product parameters

Product Model: AP2D36 Pilot Pump

Product Type: Positive Flow Control Hydraulic Gear Pilot Pump

Applicable Main Pump: AP2D36 Hydraulic Main Pump

Applicable Equipment: Doosan DH60/DX60, Hyundai R60-7/R60-9, 6–8 Ton Small Excavators

Structural Feature: Low Flow Pulsation, Ultra-low Internal Leakage, Constant Pressure Output, Reinforced Wear-resistant Structure

Core Structure: High-hardness Alloy Gear Set, Anti-fatigue Bearing Assembly, High-temperature Pressure-resistant Sealing System, Integral High-rigidity Pump Body

Working Characteristics: Sensitive Pressure Response, Stable Idle & Load Pressure, Low Vibration & Low Noise, Wear and Temperature Resistant

Core Function: Provide Standard Stable Pilot Pressure, Drive Main Pump Variable Adjustment and Whole Machine Hydraulic Actions, Ensure Sensitive and Smooth Operation

advantages

Specially customized and calibrated for AP2D36 main pump positive flow system, perfectly matching original installation size and pilot pressure parameters, supporting 1:1 non-destructive plug-and-play replacement without equipment modification, with high system matching degree and zero adaptation faults.
Adopting low-pulsation constant-pressure output technology, it effectively avoids pilot pressure fluctuation and pressure drop caused by frequent short-cycle actions and load switching, thoroughly solving common problems such as slow response, weak operation and jitter of 6–8 ton small excavator working devices.
High-hardness alloy gear pair and reinforced bearing structure greatly improve wear resistance and structural stability, adapt to long-term high-frequency start-stop and variable-load operation of small excavators, and maintain long-term stable pilot pressure output without attenuation.
Integral high-rigidity pump body features excellent vibration, dust and corrosion resistance, adapting to complex and harsh construction environments such as municipal sites and field foundation works, with service life far exceeding ordinary universal pilot pumps.
Precision hydraulic matching design perfectly coordinates with AP2D36 main pump variable mechanism, improves main pump power regulation sensitivity and whole machine operation smoothness, effectively enhances equipment construction efficiency and fuel economy for small-scale fine operation scenarios.

FAQ

Q1: What are the common failure symptoms of AP2D36 pilot pump?
A: Typical faults include delayed operation response, weak boom/arm/bucket fine operation, unstable idle pilot pressure, walking jitter and deviation, unsmooth swing compound actions, slow main pump variable response, pump body oil leakage and abnormal operating noise.
Q2: Why does the small excavator become sluggish after long working hours?
A: Long-term frequent short-cycle operation causes wear of internal gears and bearings, increased internal leakage and decreased pilot pressure, resulting in insensitive main pump variable adjustment and weak hydraulic actions. Replacing the aging AP2D36 pilot pump can restore original control performance.
Q3: How to maintain AP2D36 pilot pump daily?
A: Keep hydraulic oil clean, replace hydraulic oil and filter elements regularly to prevent hard impurities from wearing precision gear components. Regularly check the pump body for oil leakage and abnormal noise to ensure stable pilot pressure output and normal main pump variable operation.
Q4: How to extend the service life of AP2D36 pilot pump?
A: Avoid long-term frequent start-stop impact and overload fine operation, maintain the cleanliness of the hydraulic system, reduce internal component wear and fatigue loss, and effectively extend the service life of the pilot pump.

warehouse

We have built four spare parts warehouses in Xuzhou, Jining, Kunshan and Changsha to provide customers from all over the world with a variety of high-quality spare parts. We can basically ship self-provided spare parts within three days after confirming the order. If the spare parts need to be adjusted or processed, they will be shipped within 7-30 days.