Lehman SP90 - User Manual

Technical data and performance curves for the Lehman Super 275 engine model.

Guide to the manual's structure and sections for effective use.

Procedures for ordering necessary engine parts from Lehman.

Troubleshooting common problems like starting failures, rough idling, and low power.

Step-by-step guides for starting and stopping engines.

Step-by-step guide to removing air from the fuel system for optimal performance.

Information on timing and maintaining the engine's fuel injection pump.

Explanation of the engine's fresh and raw water cooling systems.

Procedures for protecting the cooling system in freezing temperatures.

Details on the engine's electrical system and tachometer installation.

Information on engine oil types, viscosity, and filter replacement.

Operation and maintenance for Borg Warner transmissions.

Guidance for PRM/Newage and Twin Disc transmissions.

Schedule of routine maintenance tasks based on engine operating hours.

Procedures for common minor repairs and component adjustments.

Steps for preparing the engine for freezing temperatures, including antifreeze.

Part breakdown and identification for the intercooler assembly.

Part breakdown and identification for the turbo charger assembly.

Part breakdown and identification for the heat exchanger assembly.