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Lombardini Manuals
Engine
12LD 435-2
Workshop manual
Lombardini 12LD 435-2 Workshop Manual
12ld series
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Workshop Manual 12 LD _ Cod. 1.5302.460 - 3° Ed_ Rev. 02
Table of Contents
1 General Remarks and Safety Information
General Service Manual Notes
Warranty Certificate
Glossary and Terminology
Safety Regulations
2 Technical Information
Trouble Shooting
Manufacturer and Motor Identification Data
Techinical Specifications
Performance Diagrams
Overall Dimensions
3 Maintenance - Recommended Oil Type - Refilling
Routine Engine Maintenance
ACEA Regulations - ACEA Sequences
API / MIL Sequences
International Specifications
Lubricant
SAE Classification
Prescribed Lubricant
Fuel Specifications
4 Disassembly/ Reassembly
Oil-Bath Air Cleaner
Recommendations for Disassembling and Assembling
Recommendations for Overhauls and Tuning
Alternator
Dry Air Cleaner
Flywheel
Valve I Rocker Arm Clearance
Compression Release (Optional)
Cylinder Head
Injector Projection
Rocker Arm Assembly
Valve Guide Insertion
Valve Guides and Valve Guide Housings
Valve Seats and Housings
Valves
Cylinder
Cylinder Roughness
Piston
Valve Seat Grinding
Piston Rings - End Gaps
Piston Rings - Fitting Sequence
Piston Weight
Pistons Ringis - Clearance between Grooves
Connecting Rod Big End Bearing
Connecting Rod Small End Bushing
Piston - Refitting
Piston Clearance
Connecting Rod Weight
Crankshaft Timing Gear
Main Bearing Support, PTO-Side
Main Bearing Support, Timing Gear Side
Center Main Bearing Support, Locating Bolt
Crankshaft
Crankshaft Center Main Bearing Support
Crankshaft End Play
Crankshaft Journal Radius
Crankshaft Lubrication Ducts
Clearance between Main Journals/Crank Pins and Connecting Rod Bearings
Main Bearing and Connecting Rod Big End Bearing Internal Diameter
Main Bearing Housing
Main Bearing Supports
Camshaft End Play
Camshaft Timing
Dimensions of Camshaft Journals and Housings
How to Measure Intake/Exhaust Cam Height
Valve Timing Without Considering Timing Marks
Governor Springs with Rocker Arm
Hydraulic Pump P.t.o. (1P)
Mechanical Speed Governor
Spring for Extra Fuel Supply at Starting
5 Lubrication System
Lubrication System and Breather Recirculation System
Oil Filter Cartridge (External)
Oil Filter Cartridge (Internal)
Oil Preassure Relief Valve
Oil Pump
Oil Pressure Curve at Full Speed
Oil Pressure Curve at Idling Speed
6 Fuel System
Fuel Feeding Pump
Fuel Feeding/Injection Circuit
Fuel Filter, Inside Fuel Tank
Fuel Filter, Removed from the Tank (Upon Request)
How to Reassemble Injection Pump Components
Injection Pump
Test Data for Injection Pump Delivery
Injection Pump/Mechanical Speed Governor Timing
Injection Static Advance Adjustment
Injector, for Standard Engines
Injector Setting
Injector, for EPA Engines
7 Electric System
Alternator Battery Charger Curve (12.5 V, 14A)
Alternator, 12.5 V - 14 a
Electrical Starting Layout with Battery Charging Light
Alternator Battery Charger Curve (12 V, 18 A)
Alternator, 12 V - 18A
Optional Electric Equipment
Voltage Regulator
Characteristic Curves for Starting Motor Type Bosch DWL 12 V, 1.7 Kw
How to Check Voltage Regulator for Proper Operation
Starting Motor Type Bosch DWL 12 V, 1.7 Kw
8 Settings
Full Speed Setting in No-Load Conditions (Standard)
Idling Speed Setting in No-Load Conditions
Injection Pump Delivery Limiting and Extra Fuel Device
Injection Pump Delivery Setting
Injection Pump Delivery Setting with Engine at the Torque Dynamometer
Stop Setting
9 Storage
External Engine Protection
Injection Systems Protection
Internal Engine Protection
Procedures to be Carried out before Start the Engine
10 Torque Specifications and Use of Sealant
Table of Tightening Torques for the Main Components
Use of Sealant
Table of Tightening Torques for Standard Screws (Coarse Thread)
Table of Tightening Torques for Standard Screws (Fine Thread)
11 Special Tools
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General Service Manual Notes
2
Techinical Specifications
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WORK SHOP MANUAL
12LD Series engines,
rd
cod. 1-5302-460_3
ed.
12LD 435-2
12LD 435-2/B1
12LD 475-2
12LD 475-2 EPA
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This manual is also suitable for:
12ld 475-2
12ld 435-2/b1
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