Complete workshop & service manual with electrical wiring diagrams for JCB Dieselmax Mechanical (444/448). It's the same service manual used by dealers that guaranteed to be fully functional and intact without any missing page.

This Dieselmax Mechanical service & repair manual (including maintenance, overhaul, disassembling & assembling, adjustment, tune-up, operation, inspecting, diagnostic & troubleshooting…) is divided into different sections. Each section covers a specific component or system with detailed illustrations. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. The printer-ready PDF documents work like a charm on all kinds of devices.

FILELIST:
9806_3000-4 - JCB 444 Engine Mechanical Service Manual.pdf
9806-3000-5 - JCB Dieselmax Mechanical Engine (444, 448) Service Manual.pdf
9806-3030 - JCB Dieselmax Tier 3 SE Engine Service Manual.pdf

EXCERPT:
Service Manual
JCB Dieselmax Mechanical Engine
Section 1 - General Information
Section 2 - Care and Safety
Section 3 - Maintenance
Section 4 - Systems Description
Section 5 - Fault Finding
Section 6 - Test Procedures
Section 7 - Fuel System
Section 8 - Cooling System
Section 9 - Lubrication System
Section 10 - Electrical System
Section 11 - Induction and Exhaust System
Section 12 - Base Engine
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Basic Description
The JCB Dieselmax engine is a 4 cylinder diesel engine in which the fuel is ignited by compression ignition (C.I.). The engine operates on a four stroke cycle, K The Four Stroke Cycle ( T 4-14).
The engine is started by electric starter motor 7-1. The motor turns the engine via a pinion and teeth on the engine flywheel 7-2.
When the engine runs the crankshaft 7-3 drives the camshaft 7-4 via gears. The camshaft opens and closes the inlet and exhaust valves 7-5 and 7-6 via push rods 7-7 in time with the four stroke cycle. The engine has 16 valves, 2 inlet and 2 exhaust valves for each cylinder.
The crankshaft also drives a mechanical fuel injection pump 7-8 via gears. The pump injects fuel via injectors, or atomisers 7-9 into each cylinder in time with the four stroke cycle. Fuel is pumped from a fuel tank to the injection pump by means of a lift pump 7-10 driven by cam lobes on the camshaft.
Air is drawn into the engine via inlet manifold 7-11 and exhaust gasses exit via exhaust manifold 7-12. On turbocharged engines an exhaust driven turbocharger 7- 13 pressurises air at the inlet manifold.
A mechanical lubrication oil pump 7-14 is driven by the crankshaft via gears. The pump pressurises and circulates oil for engine lubrication and cooling purposes.
A drive belt 7-15 again driven by the crankshaft, drives a coolant circulation pump, alternator, radiator cooling fan and other ancillaries such as an air conditioning compressor.
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Service Manual
JCB Dieselmax Tier 3 SE Engine
Section 1 - General Information
Section 2 - Care and Safety
Section 3 - Routine Maintenance
Section 4 - Systems Description
Section 5 - Fault Finding
Section 6 - Test Procedures
Section 7 - Fuel System
Section 8 - Cooling System
Section 9 - Lubrication System
Section 10 - Electrical System
Section 11 - Induction and Exhaust System
Section 12 - Base Engine
Section 13 - Electronic Data Systems
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