Section 8. Specifications - Kohler PRO 3.7 Owner's Manual

7.1 Overload
Never exceed rated load of generator (in Amps and/or Watts) when it is running continuously. See specifications table for rated
outputs. Before connecting and operating generator, calculate electrical power required by electric appliances (in Watts). This
electrical power rating is usually found on manufacturer's plate on bulbs, electrical appliances, motors, etc. Sum total of power
required by these appliances should not exceed nominal power rating of generator.
Circuit protectors (A26) and circuit breaker (A17) will stop power to protected receptacles (A24, A25, and A11) when an overload of
a connected electrical device is detected or AC output voltage rises to protect generator and any connected electric devices. When
overload occurs and power generation stops, proceed as follows:
1. Turn off any connected electric devices and stop generator.
2. Reduce total wattage of connected electric devices within application range.
3. Check for blockages in cooling air inlet and outlet areas and around control unit. If any blockages are found, remove them.
4. After checking, restart generator.
7.2 Repair/Service Parts
We recommend that you use a Kohler portable dealer for all maintenance, service, and replacement parts for engine. To find a
Kohler portable dealer visit KohlerPower.com or call 1-800-544-2444 (U.S. and Canada).
8.1 Operating Conditions
The stated outputs of the units are obtained under the reference conditions outlined in ISO 8528-5:
Total barometric pressure: 100 kPa - Ambient air temperature: 25°C (77°F) - Relative humidity: 30%.
The unit's output is reduced by approximately 4% for every additional 10°C and/or approximately 1% for every additional 100m in
altitude. Units can only operate while stationary.
8.2 Capacity of the Generator Set
Before connecting and operating the unit, calculate the electrical power required by the units to be used (in watts)*. To ensure
optimal operation, the total wattage of all equipment used at the same time must be:
- greater than 60% of the rated load for the unit (risk of insufficient load);
- less than the rated load for the unit during continuous operation (risk of overload).
If the unit is run under or over its rated load frequently or for long periods of time, it can start to wear very quickly. Damage caused
in this way will not be covered by the warranty.
* This load is usually indicated in the technical specifications or on the manufacturer's plate for the equipment. Some equipment requires a higher
load when starting. This minimum required power must not exceed the unit's maximum power.
8.3 Generator Set Identification
The identification plates for the unit (examples shown below) is affixed inside one of the skirts or on the chassis.
Serial number
Figure 1 Generator Set Identification (sample shown)
Serial numbers will be required when requesting troubleshooting advice or spare parts.
8.4 High Altitude Operation
If this engine is operated at an altitude of 4000 ft. (1219 meters) or above, a high altitude carburetor kit is required. To obtain high
altitude carburetor kit information or to find a Kohler authorized dealer, visit KohlerEngines.com or call 1-800-544-2444 (U.S. and
Canada).
This engine should be operated in its original configuration below 4000 ft. (1219 meters). Operating this engine with the wrong
engine configuration at a given altitude may increase its emissions, decrease fuel efficiency and performance, and result in damage
to the engine.
8.5 Engine Speed
Do not tamper with governor setting to increase maximum engine speed. Overspeed is hazardous and will void warranty.
TP-7213 7/21
Model number
AC Voltage
Current
Power

Section 8. Specifications

Frequency
Phase
RPM
Power Factor
9