122-1206 plunger pump For CAT TH62, TH63, TH82, TH83 telehandler

122-1206 plunger pump For CAT TH62, TH63, TH82, TH83 telehandler Featured Image
  • 122-1206 plunger pump For CAT TH62, TH63, TH82, TH83 telehandler

Short Description:

364-0983 hydraulic fan motor is aftermarket replacement part for CAT 374F and CAT390F large mining excavator. Driven by variable hydraulic oil from fan pump, it rotates cooling fan for engine thermal management.

Product Detail

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description

122-1206 axial variable piston pump serves as main hydraulic power unit for CAT telehandler TH62, TH63, TH82, TH83, driven by 3054 engine. It converts mechanical power into adjustable high-pressure hydraulic energy for boom, bucket and steering hydraulic systems. Built-in load sensing control valve dynamically changes pump displacement. During heavy lifting, pump increases flow to maintain lifting speed; under light load or idle travel, it reduces displacement to save fuel and lower heat generation. Internal plungers, cylinder block, valve plate and slipper assemblies are manufactured from high-strength alloy steel with precision grinding and surface hardening treatment. Compact cast iron housing adopts stress relief annealing to eliminate casting residual stress, resisting vibration and particle contamination on construction sites. High-performance FKM fluorine rubber sealing assembly delivers reliable high temperature resistance and anti-aging property, reducing internal volumetric leakage and external oil seepage. Every pump passes full hydraulic bench inspection before shipment, including pressure holding, flow characteristic and load-sensing response test. It is fully interchangeable with original 122-1206 (also cross reference 0R-0913), supporting bolt-on installation for telehandler overhaul and field maintenance.

product parameters

Part No：122-1206（Cross ref:0R-0913）
Product Type：Variable Displacement Axial Piston Pump
Applicable Equipment：CAT TH62, TH63, TH82, TH83 Telehandler, 3054 Engine
Control Mode：Load Sensing Swash Plate Control
Displacement：45 cc/rev
Nominal Working Pressure：28 MPa (280 bar)
Max Instantaneous Peak Pressure：33 MPa (330 bar)
Rated Rotation Speed：2300 rpm
Max Allowable Rotation Speed：2600 rpm
Working Medium：ISO VG46 Anti-wear Hydraulic Oil
Working Temperature Range：-20℃ ~ +110℃
Main Material：Cast iron housing, high-strength alloy steel internal parts, FKM fluorine rubber seal
Surface Treatment：Precision grinding, surface hardening, stress relief annealing, anti-rust coating
Shaft Specification：Original standard splined shaft
Interchangeability：1:1 OEM interchangeable, direct bolt-on installation
Product Condition：Brand new aftermarket part, 100% hydraulic bench tested

advantage

- Load sensing tuned for frequent lifting & telescoping cyclic duty
The load sensing curve is optimized for telehandler typical working cycle. It responds quickly when lifting heavy pallet loads, automatically reduces flow during boom holding to cut power waste.
- Compact body design for limited space inside telehandler chassis
Small footprint structure fits the compact installation space of TH series telehandler. It simplifies disassembly and replacement without major modification of surrounding pipeline layout.
- Stable flow output under mixed working mode of lifting and steering
Precise flow distribution ensures boom telescoping and vehicle steering can operate simultaneously, avoiding power competition when handling heavy loads on uneven ground.
- Anti-fatigue housing for frequent start-stop impact of material yard
Casting housing with optimized internal stress treatment improves fatigue resistance, adapting to repeated start-stop and load impact in frequent loading and unloading work.
- Low pulsation hydraulic design to protect boom cylinder seals
Optimized internal flow path reduces pressure pulsation during variable displacement adjustment, lowering impact damage to boom cylinder seals and extending cylinder service life.
- Full cyclic bench test simulating stacking and loading duty
Each pump undergoes cyclic test simulating stacking, lifting and telescoping operations, verifying stable performance under repeated variable load of material yard.

FAQ 

Q1: Which machine does 122-1206 plunger pump fit?
A1: This hydraulic plunger pump is designed for CAT TH62, TH63, TH82, TH83 telehandler with 3054 engine, used as main hydraulic pump for lifting and steering. Confirm machine serial number before purchase.

Q2: What hydraulic functions does this pump support?
A2: It supplies high-pressure hydraulic oil for boom lifting, boom telescoping, bucket tilt and vehicle steering, completing material stacking, loading and handling work.

Q3: What are typical failure symptoms of worn pump?
A3: Typical symptoms: insufficient lifting capacity under heavy load, slow boom extension and retraction, pressure drop during boom holding, obvious heat rise during continuous stacking, pump abnormal noise and shaft seal oil leakage.

Q4: What inspections should be done before installing new pump?
A4: Inspect boom cylinders, steering hydraulic circuit, multi-way valve and filter elements. Fully flush hydraulic tank and pipelines to remove metal debris. Replace degraded hydraulic oil before assembly.

Q5: Why telehandler still lacks lifting power after pump replacement?
A5: The fault may not come from pump. Check relief valve calibration, stuck valve spool, clogged filter, damaged cylinder seals or trapped air inside hydraulic circuit. Air bleeding must be completed after installation.

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.

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