Facts About Generators
GeneratorsDirectoryCompareRepairEnginesControllersPartsManufacturersGuides
Search models or part #
Home›Repair guides›Natural Gas

Cummins/Onan TGHAA — Natural Gas

For the Cummins/Onan TGHAA.

Applies to: Cummins Onan Tghaa

Procedure

  1. 5.6 kW
  2. 6.0 kW
  3. 5.0 kW Voltage 120/240 or 120 volts 230 volts Circuit Breaker Rating
  4. 2-Pole, 25 amps FUEL CONSUMPTION: Natural Gas LPG LPG No-load Half-load Full-load 55 ft3/h (1.6 m3/h) 73 ft3/h (2.1 m3/h) 120 ft3/h (3.4 m3/h)
  5. 2.2 lb/h (1.0 Kg/h)
  6. 3.5 lb/h (1.6 Kg/h)
  7. 5.5 lb/h (2.5 Kg/h)
  8. 2.0 lb/h (0.9 Kg/h)
  9. 3.2 lb/h (1.4 Kg/h)
  10. 5.0 lb/h (2.3 Kg/h) ENGINE: Opposed 2-Cylinder, 4-Cycle Spark-Ignited, Side-Valve, Air Cooled, Microcontroller Governed Bore
  11. 3.653 inch (90 mm) Stroke
  12. 3.000 inch (76 mm) Displacement 60 inch3 (980 cc) Compression Ratio
  13. 7.0 : 1 Min Crankcase Vacuum 10 inch (254 mm) WC (water column) Min Cylinder Compression Test Pressure 75 psi (517 kPa) Oil Capacity (with filter)*
  14. 3.5 quart (3.3 liter) Intake Valve Clearance (Cold)
  15. 0.005 inch (0.13 mm) Exhaust Valve Clearance (Cold)
  16. 0.013 inch (0.33 mm) Spark Plug Gap
  17. 0.025 inch (0.64 mm) Spark Plug Tightening Torque 8 lb-for (10 N-m) Ignition Timing (electronic ignition) 15° BTDC (non-adjustable) Natural Gas Supply Pressure
  18. 6-13 inch (152-330 mm) WC (water column) LPG Supply Pressure (vapor)
  19. 9-13 inch (229-330 mm) WC (water column) Gas Supply Connection 3/8 inch NPT CONTROL AND CRANKING SYSTEM: Nominal Battery Voltage 12 volts Battery Cranking Capacity 450 amps down to 0° F (–17° C) 650 amps down to –20° F (–29° C) Battery Charging Output 10 amps Fuse F1 (control B+ input)
  20. 7.5 amps Fuse F2 (starter solenoid)
  21. 7.5 amps Fuse F3 (carburetor de-icer) 25 amps * See Periodic Maintenance for oil filling instructions. Redistribution or publication of this document, by any means, is strictly prohibited.

Source: manual:965-0101B Onan TGHAA Genset Operator manual.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.