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General safety guidelines for operating and servicing the genset.
Warnings related to electrical, fuel, exhaust, moving parts, and battery hazards.
Introduction to the service manual and its intended use for BGM and NHM generator sets.
Technical specifications for BGM and NHM gasoline generator models.
Technical specifications for NHM LPG generator models.
Detailed dimensional data for cylinder, piston, crankshaft, camshaft, and valve components.
Torque specifications for various fasteners and components on BGM and NHM models.
Essential safety guidelines and personal protection recommendations for servicing the genset.
Table identifying common hazards and ways to avoid them during genset servicing.
Lists of specialized tools needed for engine and generator system maintenance.
Safety warnings and procedures for removing the genset from a vehicle.
Guide to diagnosing and resolving common engine problems like misfires and backfires.
Description of exhaust system parts and checks for leaks and proper termination.
Explanation of cooling airflow and factors that can cause engine overheating.
Description of the rotor, module, coil, and capacitor in the electronic ignition system.
Guidance on spark plug inspection, troubleshooting, and performing a quick ignition test.
Procedures for cylinder compression testing and servicing the crankcase breather assembly.
Information on adjusting governor and carburetor settings for optimal performance.
Procedures for servicing the air cleaner and removing the carburetor/intake manifold.
Detailed instructions for overhauling gasoline carburetors, including cleaning and parts replacement.
Procedures for adjusting choke settings based on ambient temperature and testing operation.
Steps for testing the fuel pump pressure and identifying potential issues.
Diagram and description of LPG system components for liquid withdrawal configurations.
Procedures for testing the primary pressure and lock-off pressure of the demand regulator.
Steps for disassembling, cleaning, and reassembling the LPG fuel filter.
Diagram and description of LPG system components for vapor withdrawal configurations.
Procedures for adjusting LPG supply pressure and testing regulator lock-off.
Steps for removing, replacing, and disassembling the electric starter motor.
Methods for testing the starter armature and inspecting brushes for wear.
Introduction to the control system, outlining its primary functions.
Listing of control panel components for mechanical governor gensets.
Description of circuit breakers, voltage regulator, and terminal board functions.
Wiring diagram illustrating the control circuit for mechanical governor sets.
Detailed explanation of the control system's operation during starting, running, and stopping.
Listing of control panel components for electronic governor gensets.
Description of the PCB, switches, fuses, solenoids, and relays in the control system.
Explanation of the governor controller's role and the conditions that cause engine shutdown.
Diagnostic steps for when the engine fails to crank.
Troubleshooting steps for when the engine cranks but fails to start.
Troubleshooting for engine stop issues and low battery conditions.
Diagnosing issues where the engine stops immediately or restarts after cooling.
Troubleshooting for problems with remote control panel features like run lamp or time meter.
Steps to resolve issues where the generator set does not stop after the switch is turned off.
Procedures for testing the control board A1 using a voltmeter and ohmmeter.
Overview of the generator's main components and their functions.
Details on the generator housing, stator, and basic operational principles.
Explanation of voltage regulation and how the generator handles varying load conditions.
Diagram illustrating the physical layout of generator control components.
Troubleshooting steps for the critical issue of no AC output voltage from the generator.
Procedures for diagnosing and resolving issues with generator voltage levels and noise.
Steps to identify the causes of generator overheating, such as overload or restricted airflow.
Detailed instructions for disassembling the generator set components.
Procedures for safely lifting and removing generator components like the stator and rotor.
Instructions for removing the rotor bearing and accessing ignition components.
Procedures for removing and replacing the ignition rotor and module.
Steps for assembling the stator, brush block, and starter onto the generator.
Procedures for inspecting brushes for wear and replacing them, including spring considerations.
Steps for inspecting slip rings, cleaning, and refinishing them if necessary.
Procedures for testing field voltage and the rotor for electrical faults.
Methods for testing the stator windings for electrical integrity.
Steps for removing, cleaning, and installing the oil filter and adapter.
Procedures for removing, cleaning, and reinstalling cylinder heads, including torque sequences.
Procedures for inspecting valve faces, stems, guides, and replacing valve stem seals.
Steps for removing and installing valve guides and servicing valve seats.
Procedures for installing new valve seat inserts and staking them securely.
Step-by-step guide for adjusting valve tappet clearances.
Procedures for removing and installing the gear cover, including governor cup alignment.
Steps for removing and installing the governor cup and camshaft center pin.
Procedures for timing gear alignment and overview of the lubrication system.
Procedure for testing the oil bypass valve and checking its effect on oil pressure.
Steps for removing pistons, including cleaning and ring removal.
Procedures for measuring piston clearance and checking piston ring gaps.
Steps for installing the piston and connecting rod assembly into the cylinder.
Procedures for removing, inspecting, and installing the crankshaft.
Procedures for cleaning the cylinder block and inspecting it for cracks.
Methods for measuring cylinder bore diameter and checking for wear.
Detailed instructions on using precision hones to achieve the correct cylinder bore finish.
Steps for replacing camshaft bearings, ensuring correct alignment.
Procedures for installing crankshaft main bearings, including alignment and lubrication.
Steps for removing and installing front and rear oil seals.
Checklist items for verifying proper mounting, lubrication, and wiring connections.
Procedures for initial start adjustments and performing an output check under load.
Inspections of the exhaust, fuel, and control systems during operation.
Final checks on mechanical parts, fasteners, and the generator compartment.
A list of wiring diagrams applicable to different generator set specifications.
Introduction to troubleshooting guides for Marquis electronic components and control boards.
Procedures for testing the control board in static mode using voltage measurements.
Voltage readings for the control board in crank, start, run, generate, and stop modes.
Step-by-step tests using a test light to diagnose the electronic ignition module.
Static mode voltage tests for the Marquis control board, specifying pin connections.
Voltage readings for the control board in crank, start, run, generate, and stop modes.
A flowchart to diagnose why the set stops when the switch is released.
Procedures for testing the rotor and stator for electrical integrity and specifications.
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General