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3-6 Fuel System Installation
1. Vibration must be checked during the application review:
- Fuel Pump acceleration must not exceed 2 G's continuous at any condition.
- Fuel Pump displacement must not exceed 0.5mm continuous at any condition.
- Fuel Filter acceleration must not exceed 5 G's continuous at any condition.
- Fuel Filter displacement must not exceed 0.7mm continuous at any condition.
2. Fuel temperature should be checked during the application review:
- The temperature should not be more than 75° C.
3. Installation/orientation of Components:
- Water separator and fuel filter should be mounted with the filter oriented vertically.
- Feed pump and check valve can be mounted vertically or horizontally.
4. Environment:
- It is critical that water content in fuel does not exceed 0.14%.
- It is critical that Bio content does not exceed 5% ASTM D6751, EN 14214 (7%; EU EN 590: 2009)
- It is strongly recommended to not use zinc coated fuel tank or components.
5. Fuel component Requirements:
- FEA-sourced Supply/Return hose:
- Hose I.D. = 8mm nominal
- Supply pressure > -30 kPa @ the supply pump
- Temperature < 75 ° C @ the supply pump
- Return pressure < 20 kPa @ the tank
- Fuel Filter:
- Filtration ≥ 98.7% at 3-5µm (per ISO 19438)
3. Fuel System
Kubota Emission-Related Installation Instructions
Document Number : KEA-STD-03-CRS-DOC-001-
④
Page No. 43
Appendix 5
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