Carrier Roller for Hitachi EX3600-6 Excavator | 9215482
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Hitachi EX3600-6 Excavator 9215482
Carrier Roller for Hitachi EX3600-6 Excavator | 9215482
Product Overview
The carrier roller (also known as top roller or upper track roller) is a critical undercarriage component of your Hitachi EX3600-6 mining excavator. Positioned on the upper track frame, these rollers support the top run of the track chain, preventing sag and reducing track vibration during machine travel. Properly functioning carrier rollers ensure smooth track operation and extend the service life of the track chain and other undercarriage components.
The Hitachi EX3600-6 is a 362-ton ultra-class mining excavator powered by two Cummins QSKTA60-CE engines producing 1,450 kW (1,944 HP) each . This genuine Hitachi carrier roller (Part No. 9215482) is engineered to exacting OEM specifications for perfect fit, reliable performance, and maximum service life in demanding mining environments.
This is a genuine Hitachi original equipment part.
Technical Specifications
Parameter
Specification
Part Number
9215482
Manufacturer
Hitachi Construction Machinery
Component Type
Carrier roller / Top roller / Upper track roller
Application
Upper track chain support
Machine Model
EX3600-6 Mining Excavator
Operating Weight
359,000–362,000 kg
Engine Power
2 × 1,450 kW (2 × 1,944 HP)
Track Shoe Width
1,270 mm (50 inches)
Track Gauge
5,500 mm (18 ft 1 in)
Carrier Rollers per Side
3
Track Rollers per Side
8
Roller Type
Single flange / Double flange (verify configuration)
Material
Forged alloy steel, heat-treated
Surface Hardness
52–58 HRC (mining duty)
Bearing Type
Sealed tapered roller bearing
Lubrication
Grease-packed / Oil bath (verify configuration)
Mounting Type
Bolt-on to track frame
Please verify exact specifications with your machine's technical manual or existing component.
EX3600-6 Undercarriage Overview
The Hitachi EX3600-6 features a reinforced undercarriage system designed for extreme mining conditions. According to the EX3600-6 Workshop Manual (W18ME00), the undercarriage components are documented inSECTION 3 UNDERCARRIAGE:
Component
Function
Manual Reference
Carrier Roller (9215482)
Supports upper track chain run
Group: Upper and Lower Roller
Track Rollers
Supports machine weight on track frame
Group: Upper and Lower Roller
Travel Device
Propels machine
Group: Travel Device
Travel Brake Valve
Controls travel braking
Group: Travel Brake Valve
Drive Tumbler
Sprocket for track engagement
Group: Drive Tumbler
Center Joint
Hydraulic fluid transfer
Group: Center Joint
Adjuster Cylinder
Track tensioning
Group: Adjuster Cylinder
Front Idler
Track guidance at front
Group: Front Idler
Track
Ground contact and propulsion
Group: Track
Key Undercarriage Features
- Cast steel center track frame integrated to avoid stress concentration
- High-mounted compact travel motors protected from rock damage
- 3 carrier rollers per side for optimal upper track support
- 8 track rollers per side for weight distribution
- Rigid box design resists bending and twisting forces
Function & Operation
Function
Description
Upper Track Support
Supports the top run of the track chain, preventing sag
Vibration Reduction
Minimizes track chain vibration during high-speed travel
Track Alignment
Maintains proper track chain alignment on upper frame
Load Distribution
Distributes track chain weight across upper frame
Operating Principle
- Track chain travels around sprocket, idler, and rollers
- Upper track run rests on carrier rollers
- Rollers rotate as track chain moves
- Internal bearings allow smooth rotation with minimal friction
- Seals prevent contamination and retain lubrication
Compatible Hitachi Models
Series
Models
Primary
Hitachi EX3600-6 Mining Excavator
Also Compatible
EX3600-6 Backhoe, EX3600-6 Loading Shovel
Important:The EX3600-6 is equipped with 3 carrier rollers per side . Please verify your machine's serial number and specific undercarriage configuration with our parts department to ensure correct compatibility. For EX3600-6 serial numbers 1091 and up, refer to updated electrical and hydraulic system documentation .
Genuine Hitachi Quality
Component
Feature
Benefit
Roller Body
Forged alloy steel, heat-treated
Exceptional wear resistance in mining conditions
Flanges
Precision-machined
Proper track chain guidance
Bearings
Heavy-duty sealed tapered roller
Extended service life, contamination protection
Seals
Genuine Hitachi high-pressure seals
Leak-free operation, debris exclusion
Surface
Hardened to mining specifications
Resists abrasion from track contact
Key Features
- Precision-machined for exact OEM fitment
- Heat-treated for maximum wear resistance
- Sealed bearing design for contamination protection
- Tested under toughest mining conditions
- Designed and engineered specifically for EX3600-6
- Direct replacement for original equipment
Common Failure Signs
Symptom
Likely Cause
Unusual noise from upper track area
Bearing wear, roller damage
Track chain sag on top run
Worn carrier roller, bearing failure
Roller does not rotate freely
Bearing failure, seal damage
External grease leaks
Seal failure
Flat spots on roller surface
Spalling, material fatigue
Uneven track wear pattern
Roller misalignment, wear
Track vibration during travel
Worn or seized carrier rollers
Genuine Part Assurance
Assurance
Detail
Authenticity
100% genuine Hitachi part
Condition
New
Warranty
Full Hitachi manufacturer's warranty
Packaging
Original Hitachi heavy-equipment industrial packaging
Origin
Japan
Note:Hitachi Genuine Parts are manufactured using high-quality materials and tested under the toughest conditions to guarantee reliable performance .
Installation Guidelines
Critical Requirements
- Verify part number matches your machine's requirements
- Prepare adequate heavy lifting equipment - Carrier roller is heavy
- Support machine securely with track blocked
- Maintain cleanliness - Contamination causes bearing failure
- Use new bolts and hardware - Torque to specification
Installation Steps
- Position machine on level ground, block tracks securely
- Clean carrier roller area thoroughly
- Remove mounting bolts securing old carrier roller
- Remove old carrier roller
- Clean mounting surface on track frame
- Inspect mounting holes for damage
- Install new genuine Hitachi carrier roller (9215482)
- Apply thread locker if specified
- Torque mounting bolts to Hitachi specifications
- Grease roller fittings (if applicable)
- Test track operation in forward and reverse
- Inspect for proper track alignment
Post-Installation
- Verify roller rotates freely
- Check for unusual noise during track operation
- Inspect for proper track chain contact
- Re-torque bolts after initial operation (if specified)
IMPORTANT:Installation must only be performed by qualified mining equipment technicians following procedures in the EX3600-6 Workshop Manual, specifically SECTION 3 UNDERCARRIAGE - Group: Upper and Lower Roller.
Maintenance Recommendations
Interval
Maintenance Task
Daily
Visual inspection for damage, unusual noise
Weekly
Check for proper rotation, inspect seals
Monthly
Grease roller fittings (if applicable)
Every 500 hours
Check for wear, measure roller diameter
Every 2000 hours
Inspect bearings and seals
Every 5000 hours
Perform detailed undercarriage inspection
As Needed
Replace when worn or damaged
EX3600-6 Periodic Maintenance References
The EX3600-6 is supported by comprehensive check sheets for maintenance intervals from 50 hours to 20,000 hours, including inspection points for undercarriage components .
Critical Notes
- Always use genuine Hitachi replacement parts
- Regular greasing extends bearing life
- Worn carrier rollers accelerate track chain wear
- Replace rollers in sets for even undercarriage wear
- Use Hitachi Undercarriage parts to ensure safe and efficient operation
Ordering Information
Part Number:9215482
Product Name:Carrier Roller / Top Roller / Upper Track Roller (Genuine Hitachi)
Application:Hitachi EX3600-6 Mining Excavator
Condition:New Genuine OEM Part
Recommended Related Parts
Component
Part Number
Notes
Track Roller (Lower)
Contact parts department
8 per side
Carrier Roller (Opposite Side)
9215482 (same)
3 per side
Track Chain Assembly
Contact parts department
Inspect during replacement
Track Adjuster Seal Kit
Contact parts department
For tensioning system
Quantity per Machine
The Hitachi EX3600-6 is equipped with 3 carrier rollers per side (total of 6 per machine) .
Service Manual Reference
The EX3600-6 carrier roller and undercarriage system are comprehensively documented in the following factory service publications:
Document
Reference
Content
Workshop Manual
W18ME00
SECTION 3 UNDERCARRIAGE - Upper and Lower Roller
Assembly Manual
KO32601
Undercarriage assembly procedures
Check Sheets
KO33300, KO33400
Maintenance inspection points
Operational Principle Manual
TO18ME00
Component operation theory
Hitachi EX3600-6 is a registered trademark of Hitachi Construction Machinery. All genuine parts are sourced through authorized distribution channels. Service manual reference: Hitachi EX3600-6 Workshop Manual (W18ME00), SECTION 3 UNDERCARRIAGE - Group: Upper and Lower Roller .
Factory
Factory 05
Factory 04
Factory 03
Factory 02
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