JCB Hydrapower 801.4, 801.5, 801.6 Service Manual
JCB Hydrapower 801.4, 801.5, 801.6 service data covering routine maintenance, troubleshooting, and component replacement. Publication No. 9803/3130.
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Models Covered & Key Technical Specifications
JCB Hydrapower 801.4, 801.5, 801.6 Mini Excavator Service Manual - Comprehensive Maintenance & Repair Procedures Knowledge-Base Documentary Reference Handbook Archive | Series File.
- Designated End Play: 0.2 mm establishes the operational benchmarks.
- Primary Power Framework: For efficient operation, 15-30C defines the environmental limit Requirements.
- Advanced Ambient Limits: 0.02 m Establishing the maximum ambient temperature Threshold.
- Design Dimensional Limits: The minimum clearance requires 0.002 in. for standard operation Logic.
- Engineered Torque Data: Benchmarks signify the active operating consumption Parameters.
- Certified Measurement Bounds: Tightening ensures the operational limit Threshold.
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Industrial Reference Operator's Manual: Mini Excavator Official JCB 801.4, 801.5, 801.6 Hydrapower Mini Excavator Service Manual - Comprehensive Maintenance & Repair Procedures Knowledge-Base
| Calibration-Scope: JCB 801.4, 801.5, 801.6 // Model-Specs: Mini Excavator / Hydrapower Logic // Subsystem-Focus: Engine / Hydraulics / Gearboxes. Table of Important Tightening Torques | Tightening Points | Nm | kgf m | lbf ft |
|---|---|---|---|---|
| Track Roller | 77.5 - 90.2 | 7.9 - 9.2 | 57 - 66.5 | |
| Slew Gearbox | 77.5 - 90.2 | 7.9 - 9.2 | 57.1 - 66.5 | |
| Hydraulic filter cap | Max. 30 | Max. 3.1 | Max. 22 | |
| Main Bearing Bolts | 24.5 - 29.4 | 2.5 - 3.0 | 18.1 - 21.7 | |
| Big End Bearing Bolts | 25 | 2.5 - 3.0 | 18.5 | |
| Engine shock absorber | 48.1 - 55.9 | 4.9 - 5.7 | 35.4 - 41.2 | |
| Rear counterweight | 48.1 - 55.9 | 4.9 - 5.7 | 35.4 - 41.2 | |
| Rams | ||||
| Head nut (all except dozer) | 314 | 32.0 | 232 | |
| Head nut (dozer) | 345 | 35.2 | 255 | |
| End cap (all except dozer) | 400 | 40.8 | 295 |
| Torque Settings | Item | Nm | kgf m | lbf ft |
|---|---|---|---|---|
| A | 30 - 30 | 2.0 - 3.0 | 22 - 22 | |
| B | 79 - 84 | 8.0 - 8.5 | 58 - 62 | |
| C | 20 - 24 | 2.0 - 2.5 | 15 - 18 | |
| D | 25 - 30 | 2.5 - 3.0 | 18 - 22 |
Diagnostic procedures address systems related to engine coolant, hydraulics, and track rollers. The standard function of the gearbox is well-documented, providing comprehensive information on its mechanics. The technical documentation covers all relevant subsystems and procedures for optimal operation and maintenance.
Quality checks are addressed for the engine and hydraulic systems. The PTO section documents relevant procedures and specifications. The troubleshooting chapter addresses common issues. Cooling system maintenance is addressed in the relevant sections. Testing requirements are specified for the relevant components. The service interval parameters are specified for all applicable maintenance requirements.
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