HGP66CC/REV Pilot Pump for excavators spare parts

Short Description:

The HGP66CC/REV pilot pump is a professional reverse-rotation high-precision hydraulic gear pilot pump, specially developed for 4–7 ton small excavators with reverse assembly hydraulic systems.

Send email to us

Product Detail

Product Tags

description

The HGP66CC/REV pilot pump adopts a specially customized reverse rotation precision reinforced gear pump structure, professionally optimized for counter-clockwise rotation installation, low-pressure small-medium flow, long-term light-medium load continuous operation and frequent micro-action switching characteristics of 4–7 ton special small excavator hydraulic systems. Different from standard forward rotation gear pumps that cannot adapt to reverse system assembly, this model features exclusive reverse rotor design, standardized reverse mounting hole positions, shaft diameter and installation dimensions, achieving ultra-low internal leakage and linear stable flow-pressure output under long-term cyclic operation. Equipped with reverse precision wear-resistant alloy gear pair, light-medium load anti-fatigue bearing assembly and high-temperature aging-resistant composite sealing system, it maintains stable low-pressure pilot output without performance attenuation after long-term frequent reverse operation switching. The integrated high-rigidity compact pump body features outstanding vibration resistance, dust resistance and sediment corrosion resistance, fully adapting to narrow construction sites, municipal fine engineering and complex outdoor light-medium load working environments.

product parameters

Product Model: HGP66CC/REV Pilot Pump

Product Type: Small-medium Flow Low-pressure Reverse Rotation Precision Hydraulic Gear Pilot Pump

Applicable Equipment: 4–7 Ton Special Reverse-installed Small Excavators, Modified Domestic Mini Diggers, Partial Imported Small Excavators

Structural Feature: Reverse Rotation Design, Ultra-low Flow Pulsation, Low-pressure Constant Output, Ultra-low Internal Leakage, Compact Reinforced Structure

Core Structure: Custom Reverse Alloy Gear Set, Light-medium Load Anti-fatigue Bearing Assembly, Aging-resistant Sealing System, Integrated High-rigidity Pump Body

Working Characteristics: Sensitive Low-pressure Response, Stable Idle & Light-medium Load Pressure, Low Vibration & Low Noise, Wear and Aging Resistant

Core Function: Provide Stable Low Pilot Pressure, Support Main Pump Micro Variable Adjustment and Whole Machine Fine Compound Actions for Reverse Hydraulic Systems, Ensure Sensitive and Accurate Micro-operation

Supporting Matching Parts: Reverse Type Excavator Main Pump, Small-medium Flow Control Valve, Pilot Valve Group, Precision Hydraulic Filter and Supporting Pipeline

advantages

Exclusive reverse rotation calibration for 4–7 ton special reverse hydraulic systems, perfectly matching original reverse installation size and low-pressure pilot parameters, solving the installation mismatch problem of standard forward pilot pumps, supporting 1:1 non-destructive plug-and-play replacement, no equipment modification required, 100% system matching with zero adaptation faults.
Adopting small-medium flow low-pulsation constant-pressure output technology exclusive for reverse low-pressure systems, it effectively stabilizes low-pressure fluctuation and slight pressure drop caused by frequent micro-actions and long-term light-medium load operation, thoroughly solving common pain points such as insensitive fine operation, weak trimming power and walking creeping of reverse-installed small excavators.
Custom reverse precision alloy gear pair and light-medium load anti-fatigue bearing structure optimize reverse operation wear resistance and micro-control stability, adapting to long-term continuous fine cyclic operation of special small excavators, maintaining stable low-pressure output without operation fatigue or performance attenuation.
Premium high-temperature resistant anti-aging composite sealing system adapts to complex outdoor temperature alternating environments, effectively preventing slight oil leakage and low-pressure system pressure loss, reducing daily minor faults and routine maintenance frequency of reverse hydraulic equipment.
Precision small-medium-flow hydraulic matching design ensures accurate linkage with reverse system main pump micro-variable mechanism, greatly improving fine operation smoothness and trimming accuracy, effectively enhancing construction qualification rate and fuel economy of 4–7 ton reverse-installed small excavators.

FAQ

Q1: What are the common failure symptoms of HGP66CC/REV pilot pump?
A: Typical faults include insensitive reverse system micro-operation response, weak fine trimming and compound actions, unstable idle low pilot pressure, walking creeping and slight deviation, unsmooth swing rotation, slow main pump micro-variable response, minor pump body oil leakage and faint light-load abnormal noise.
Q2: Why reverse-installed small excavators have poor fine control?
A: Long-term frequent reverse micro-action switching and light-medium load cycle operation cause minor wear of internal reverse precision gears and bearings, increased slight internal leakage and decreased low pilot pressure, resulting in delayed hydraulic response and insufficient fine-tuning power. Replacing the aging HGP66CC/REV reverse pilot pump can restore original factory micro-control accuracy.
Q3: How to maintain HGP66CC/REV pilot pump daily?
A: Keep the reverse miniature hydraulic system oil highly clean, regularly replace hydraulic oil and fine filter elements to prevent tiny dust and sediment impurities from wearing internal precision components. Regularly check pump body for oil leakage and abnormal noise to ensure stable low-pressure pilot output and sensitive reverse micro-operation.
Q4: How to extend the service life of HGP66CC/REV pilot pump?
A: Avoid long-term continuous light-medium overload and frequent sudden micro-load impact, keep the hydraulic system clean, reduce reverse operation micro-wear and fatigue loss of internal precision parts, and effectively extend the service life of the reverse miniature 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.