Diesel Generator Tech

In this article, you will learn  Cummins  NT series diesel engine maintenance checks. If you are looking for the knowledge, why not take a few time to read it? At each “D” Maintenance Checks, perform all “A”, “B” and “C” checks in addition to those following. Most of these checks should be performed by a Cummins Distributor or Dealer and where Cummins Shop Manuals are available for complete instructions. Clean and Calibrate Injectors Clean and calibrate the injectors regularly to prevent restriction of fuel delivery to the combustion chambers. Because of the special tools required for calibration, most owners and fleets find it more economical to let a Cummins Distributor do the cleaning and calibration operations. To clean and calibrate the injectors from Engines for cleaning the seal seat should be removed from the injector (1, Fig.2-22) or injector “well” for cleaning, examination and or replacement as necessary. Caution : There must be only one seal seat u...

This post will show you the detailed technical parameters of  Shangchai generator  SC4H115D2. If you are interested, take a few minutes to read it.  ◎   POWER RATING Engine Speed Type of  Operation Engine Power rpm kW Ps 1500 Prime Power 78 106 Stanby Power 86 117 1. The engine performance is as per GB/T2820 2. Ratings are based on GB/T1147.1 3.  Prime power is available for an unlimited number of hours per year in a variable load application. The permissible average power 4. Standby power is available in the even of a utility power outage or under test conditions for up to 200 hours of operation per year. The permissible average power output over 24 hours of operation shall not exceed 80% of the standby power rating, ◎  SPECIFICATIONS ◎   FUEL CONSUMPTION ㅇ Engine Model SC4H115D2 ㅇ Power L / h ㅇ Engine Type In-line, 4 strokes, water-cooled, 4 valves 25% 6.1 Turbo charged 50%...

This article mainly introduce how to adjust crosshead, injector and valves of Cummins diesel engine . If you are interested, take some times to read it carefully. Crosshead Adjustment Note: Crosshead adjustment should always be made before attempting to adjust the valves. 1. Loosen the locknut on the crosshead adjusting screw. Turn the adjusting screw out at least one turn. 2. Hold the crosshead down against its mating valve stem. Turn the adjusting screw back in until it touches the valve stem. Hold the adjusting screw in this position and tighten the locknut. 3. Tighten the adjusting screw locknut to 25 to 30 ft-lb [34 to 41 N*m] torque. Note:   When ST-669 Torque Wrench Adapter is used, tighten the locknut to 22 to 26 ft-lb [30 to 35 N*m] torque. 4. Check the clearance between the crosshead and valve spring retainer 1 and 2. Fig. 2–19 with a wire gauge. Tighten must be a minimum of 0.025 inch [0.64 mm] clearance. Fig.2–19. Valve spring retainer to crosshe...