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Cooling System of Cummins NTA Series Engine

Chong Qing-Cummins engines have small volume. light weight, low fuel consumption, high power and reliable work, and the spare parts supply and maintenance is convenient. The engines adopt electronic governor, with protection functions such as alarm and automatic parking for too high temperature in the cooling water, too low oil pressure or too speed. This article will guide you to learn the details of CCEC Cummins NTA Series engine ’ s lubricating system,  cooling system and air system. Interested? Then continue reading. Lubricating System Chong Qing-Cummins engines are pressure lubricated, pressure is supplied by a gear-type, lubricating oil pump located in oil pan or on side of the engine. A pressure regulator is mounted in the lubricating oil pump to control lubricating oil pressure. Filters and screens are provided in lubricating oil system to remove foreign material from circulation and prevent damage to bearings or mating surfaces. A by-pass valve is provi...

System Adjustments of Single Unit Governor

Panel Mounted Governor Control Adjustments The panel mounted governor control has four potentiometers for making system adjustments. These components are mounted on the control which is located inside the engine instrument panel or generator control panel. NOTE: When a two bearing generator or a single bearing generator with a flexible drive between the flex discs and shaft (eg. Kohler 4T10 generators. Models 230ROZ, 250 ROZ and 275ROZ) is installed, use a remote mounted control. If the engine is not stable after the gain adjustment is made, install a jumper wire between terminals A and B. The gain control is a one-turn potentiometer. It is used to adjust the sensitivity of the governor. A clockwise rotation of the potentiometer dial will shorten the response time of the governor  to load changes. Refer to the glossary for the gain drescription. The droop control is a one-turn potentiometer. It is adjustable for zero % (isochronous) to five % speed droop. Counterc...

Battery Maintenance of Volvo Generator Set

Volvo engine is equipped with a 2-pole electrical system and an alternator. System voltage is 24V. WARNING! Always stop the engine and break the current using the main switches before working on the engine. Main switch IMPORTANT! Never disconnect the current with the main switches when the engine is running, the alternator and electronics could be damaged. The main switches must never be switched off before the engine has stopped. If the circuit between the alternator and the battery is disconnected when the engine is running, the alternator and electronics can be damaged. For the same reason the charging circuits must never be re-connected with the engine running. Electrical Connections Check that electrical connections are dry, free from oxide, and that they are securely tightened. Battery, Maintenance WARNING! Risk of fire and explosion. Never allow an open flame or electric sparks near the battery or batteries. WARNING! Never confuse the posi...