U15 Vio20 SK15SR RD101-61100 TM02VC Nabtesco TM02 Travel Motor Final Drive Assembly Compatible with Kubota Yanmar Kobelco Doosan

1. Product Overview & Wholesale Price Range

The Nabtesco TM02 / TM02VC Travel Motor Final Drive Assembly (OEM Part # RD101-61100 / 172165-73100 / TM02 / TM02VC) combines both the 2-speed axial piston hydraulic travel motor and the compact planetary gear reduction box, designed for 1.5-to-2.5-ton mini excavators operating under continuous urban trenching, indoor demolition, and garden earthmoving operations.

• Factory Wholesale Price: $650 – $1,350 USD (Direct manufacturer pricing — Save up to 50% vs regional dealer markups)
• MOQ & Bulk Discount: 1 Unit (Tiered wholesale discounts available for batch container orders)
• Lead Time: 1–3 business days (Large factory stock ready for immediate worldwide dispatch)
• Warranty: 12 Months full replacement warranty with 100% bench pressure test video proof

2. Application Worksite Checklist (施工场景清单)

Precision-matched planetary gears engineered to deliver reliable track driving power across compact jobsite environments:

• Urban Utility Trenching & Pipe Installation: Fine hydraulic speed control for narrow ditch digging with Kubota U15 and Yanmar Vio20 mini excavators.
• Garden Landscaping & Residential Backfilling: High climbing torque prevents track slipping when traveling up garden slopes and soil piles.
• Agricultural Irrigation & Farm Ditching: Floating mechanical seals protect internal planetary gears against mud, water, and grit contamination.
• Indoor Building Demolition & Concrete Scraping: Heavy-wall cast iron housing absorbs continuous track impact vibration from small hydraulic hammers.

3. Travel Motor Final Drive Troubleshooting & Diagnostic Guide (行走马达常见故障排查)

If your 1.5–2.5 ton mini excavator travel mechanism is exhibiting driving failure, consult the diagnostic guide below:

• Fault 1: Machine Off-Track / Deviating to One Side During Straight Travel (单边行走跑偏)
  Root Cause: Severe volumetric oil bypass across the cylinder block valve plate or worn piston slippers in one travel motor.
  Solution: Replace with a complete drop-in TM02 travel motor assembly (OEM RD101-61100) to restore dual-track torque balance.
• Fault 2: Weak Crawling Torque / Unable to Climb Steep Inclines (爬坡无力/行走瘫软)
  Root Cause: Main travel relief valve springs worn out or internal swashplate shoe friction galling.
  Solution: Recalibrate travel relief valve pressure or swap the complete pre-tested TM02 final drive unit.
• Fault 3: Abnormal Metallic Chattering & Grinding Noise From Reduction Gearbox (减速机异响/齿轮打齿)
  Root Cause: Broken teeth on planetary sun gears or severe race pitting on main drive shaft bearings.
  Solution: Inspect final drive oil for metallic filings and install a factory-new TM02 travel gearbox assembly.
• Fault 4: Gear Oil Leakage From Floating Seal / Drive Shaft Area (浮动封/驱动轴封漏油)
  Root Cause: High casing backpressure caused by a clogged motor drain line, or worn mechanical duo-cone floating seal rings.
  Solution: Flush casing drain line and replace with high-pressure duo-cone floating seal group.
• Fault 5: Travel Speed Switching Failure / Locked in Low Speed (高低速无法切换/单速死锁)
  Root Cause: Sticking 2-speed shifting pilot spool or damaged swashplate control piston seals.
  Solution: Clean 2-speed pilot shift valve gallery or replace complete TM02 motor control block.

4. Hot Machinery Replacement Parts Recommendation (5大品类热门推荐表)

Explore our factory-direct replacement hydraulic components compatible with major global excavator brands:

5. Frequently Asked Questions & Technical Support (QA 问答专区)

Q1: How do I verify if this TM02 travel motor fits my Kubota U15 or Yanmar Vio20 mini excavator?
A: Check your original travel motor tag for OEM part numbers RD101-61100, 172165-73100, or TM02VC stamp. You can also send us photos of your sprocket bolt holes and oil hose connection pattern for instant verification.

Q2: My Kubota U15 excavator travels off-track to the left side. Will replacing the TM02 motor solve this?
A: Yes, off-track deviation during straight travel is caused by internal volumetric bypass in the weak side travel motor. Installing our new pre-tested TM02 travel motor restores equal dual-track drive torque.

Q3: Is this Nabtesco TM02 travel motor final drive bench tested before shipment?
A: Yes, every single TM02 travel motor undergoes a high-pressure hydraulic bench test verifying 2-speed shifting, gear torque output (up to 250 Bar), and mechanical duo-cone floating seal tightness.