JCB Hydrapower 801.4, 801.5, 801.6 Service Manual • P/N 9803/3130, Issue 1

JCB 801.4, 801.5, and 801.6 Mini Excavator Service Manual

• Official OEM publication (P/N 9803/3130, Issue 1) featuring 199 pages of detailed component specifications.
• Instant download in PDF format, optimized for full-text search and standard US Letter or A4 printing.
• Includes 12 electrical circuit diagrams and complete torque settings for all major assemblies.
• Lifetime access through your account—never lose your reference files to a crashed hard drive.

Manual Contents and Layout

When tackling complex diagnostics or heavy overhauls, having the right factory data on hand directly impacts shop efficiency. This manual serves as the primary technical reference for the JCB Hydrapower 801.4, 801.5, and 801.6 series. It organizes critical system specifications, circuit descriptions, and operational summaries into dedicated technical chapters. You get detailed sections breaking down attachments, body framework, controls, gearboxes, and the engine. Professional technicians and experienced mechanics must always review the integrated comprehensive safety procedures before beginning any physical work to ensure safe workshop practices.

Critical Specifications and Reference Data

Forget guessing values during a rebuild. The document outlines essential fluid capacities for the fuel tank, engine, slew gearbox, and hydraulic systems to speed up routine maintenance. You will find a complete table of torque settings for metric grade 8.8 bolts, alongside targeted tightening points for slew rings, hydraulic components, and track rollers. Electrical reference values for the starter motor and battery deliver the exact performance baselines needed to troubleshoot voltage drops. Deep technical parameters are thoroughly documented, including intake valve clearances (0.11–0.20 mm), coolant capacity for the 801.5 cab variant (5.0 liters), and defined internal pressure limits for the track motor.