John Deere Products & Services Portable Generator DCA70SSJU4i User Manual

Install the generator in a area that is free of debris, 

bystanders, and overhead obstructions. Make sure the 

generator is on secure level ground so that it cannot slide 

or shift around. Also install the generator in a manner so 

that the exhaust will not be discharged in the direction of 

nearby homes.
The installation site must be relatively free from moisture 

and dust. All electrical equipment should be protected from 

excessive moisture. Failure to do will result in deterioration 

of the insulation and will result in short circuits and 

grounding.
Foreign materials such as dust, sand, lint and abrasive 

materials have a tendency to cause excessive wear to 

engine and alternator parts.

Exhaust gases from diesel engines are extremely 

poisonous. Whenever an engine is installed indoors the 

exhaust fumes must be vented to the outside. The engine 

should be installed at least two feet from any outside wall. 

Using an exhaust pipe which is too long or too small can 

cause excessive back pressure which will cause the engine 

to heat excessively and possibly burn the valves.

The generator must be mounted on a solid foundation (such 

as concrete) and set firmly on the foundation to isolate 

vibration of the generator when it is running. The generator 

must set at least 6 inches above the floor or grade level (in 

accordance to NFPA 110, Chapter 5-4.1). 

dO NOT remove 

the metal skids on the bottom of the generator. They are 

to resist damage to the bottom of the generator and to 

maintain alignment.

Pay close attention to ventilation when operating the 

generator inside tunnels and caves. The engine exhaust 

contains noxious elements. Engine exhaust must be 

routed to a ventilated area.

To guard against electrical shock and possible damage to 

the equipment, it is important to provide a good 

ground (Figure 3).
Article 250 (Grounding) of the National Electrical Code 

(NEC) provides guide lines for proper grounding and 

specifies that the cable ground shall be connected to the 

grounding system of the building as close to the point of 

cable entry as practical.
NEC articles 250-64(b) and 250-66 set the following 

grounding requirements:
1.  Use one of the following wire types to connect the 

generator to earth ground.
a.  Copper - 8 AWG (5.3 mm

2

)

b.  Aluminum - 6 AWG (8.4 mm

2

)

2.  When grounding the generator (Figure 2) connect the 

ground cable between the lock washer and the nut on 

the generator and tighten the nut fully. Connect the 

other end of the ground cable to earth ground. 

3.  NEC article 250-52(c) specifies that the earth ground rod 

should be buried a minimum of 8 ft. into the ground.

When connecting the generator to any buildings 

electrical system 

alWaYs consult with a licensed 

electrician.

This generator has a permanent bonding conductor 

between the generator stator windings and the frame.