708-1S-00270 Hydraulic Pump For Komatsu PC27MR-3 excavator

708-1S-00270 Hydraulic Pump For Komatsu PC27MR-3 excavator Featured Image
  • 708-1S-00270 Hydraulic Pump For Komatsu PC27MR-3 excavator

Short Description:

708-1S-00241 hydraulic fan pump is OEM-grade piston fan pump for Komatsu D61EX-15, D61PX-15, D65EX-15 bulldozers. It serves as the power source of the bulldozer cooling system.

Product Detail

Product Tags

description

This compact variable piston pump is specially developed for PC27MR-3 mini excavator. Built-in load sensing regulator matches power demand automatically, reducing power waste during light-load operation and improving fuel economy. The pump housing adopts compact cast iron structure, optimized layout to fit the limited installation space of micro excavator. Internal piston and swash plate assembly use high-hardness alloy steel with precision grinding and surface hardening treatment, featuring excellent wear resistance and impact resistance. Premium FKM sealing combination is adopted for reliable anti-high temperature and anti-oil aging performance. Every pump undergoes hydraulic bench test including pressure, flow and leakage inspection before delivery. Original flange and port layout support direct replacement without pipeline modification.

product parameters

Part No：708-1S-00270
Product Type：Variable Displacement Piston Hydraulic Main Pump
Applicable Equipment：Komatsu PC27MR-3 Mini Excavator
Structural Feature：CLSS Load Sensing Control, compact integrated structure
Theoretical Displacement：26 cc/rev
Rated Working Pressure：21 MPa (210 bar)
Max Instantaneous Peak Pressure：24 MPa (240 bar)
Rated Working Speed：2300 rpm
Max Allowable Speed：2800 rpm
Max Output Flow：62 L/min
Working Medium：ISO VG46 Anti-wear Hydraulic Oil
Working Temperature Range：-20℃ ~ +105℃
Leakage Standard：Zero visible leakage under rated pressure
Main Material：Cast iron housing, hardened alloy piston & swash plate, FKM composite seal
Net Weight：Approx 14KG
Application：Main hydraulic power source for mini excavator working device, travel and swing system

advantage

• 26cc compact variable piston design with CLSS load sensing control, automatically adjust flow to match load, save fuel for PC27MR-3 small excavation operation.
• Miniaturized cast iron pump body, compact structure perfectly fits limited installation space of micro excavator.
• Hardened alloy piston and swash plate assembly, strong wear resistance, stable operation under slight hydraulic oil contamination.
• FKM composite sealing assembly resists high temperature and oil aging, effectively prevents internal leakage and shaft oil seepage.
• Precise load-sensing regulator ensures smooth action coordination of boom, arm and bucket, reducing operation jitter.
• OEM mounting dimensions enable direct bolt-on replacement, no pipe modification required for on-site maintenance.
• All pumps pass full-condition bench tests for pressure and flow performance, reliable for landscaping and narrow trench projects.

FAQ 

Q1: Which equipment does 708-1S-00270 hydraulic pump fit?
A1: This hydraulic main pump is specially applicable to Komatsu PC27MR-3 mini excavator. It is recommended to confirm the equipment serial number before purchasing to ensure accurate matching.

Q2: What is the core function of this hydraulic pump?
A2: It is the main hydraulic power source of PC27MR-3 excavator. It converts engine mechanical power into hydraulic power, supplies pressure oil to working device, travel and swing circuits. With CLSS load sensing control, it adjusts output flow according to load, to realize smooth excavation and mobile operation.

Q3: What are the typical failure symptoms of aging or worn hydraulic pump?
A3: Common faults include insufficient pump output leading to weak digging force; unstable flow causing shaking during operation; abnormal internal noise; internal leakage reduces system pressure; shaft seal oil seepage; slow response of boom and bucket movement.

Q4: Excavator still has weak digging power after replacing hydraulic pump, what are the possible reasons?
A4: Weak digging force is not only caused by main pump failure. Check relief valve setting pressure, clogged filter, air trapped in hydraulic circuit, wear of cylinder seals and control valve spool, to eliminate other hydraulic system faults.

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.

our warehouse

our warehouse

Pack and ship

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