Hitachi EC 129 instruction manual Grounding Instructions, Extension Cord

English

SAFETY — Continued

GROUNDING INSTRUCTIONS

This compressor should be grounded while in use to protect the operator from electric shock. The compressor is equipped with a three-conductor cord and three-prong grounding type plug to fit the proper grounding type receptacle. The green (or green and yellow) conductor in the cord is the grounding wire. Never connect the green (or green and yellow) wire to a live terminal. If your unit is for use on less than 150 volts, it has a plug that looks like that shown in sketch

(A) in Figure on the right. An adapter, see sketches (B) and (C), is

Ground

Cover of Grounded Outlet box

available for connecting sketch (A) type plugs to two-prong

receptacles. The green-colored rigid ear, lug, or the like extending

from the adapter must be connected to a permanent ground, such as

a properly grounded outlet box.

NOTE: The grounding adaptor, sketch (C), is prohibited in Canada by Canadian Electrical Code Part 1. Therefore, the instructions for its use are not applicable in Canada.

Blade

(A)

We recommend that you never disassemble the compressor or try to do any rewiring in the electrical system. Any repairs should be performed only by HITACHI Service Centers or other qualified service organizations. Should you be determined to make a repair yourself, remember that the green colored wire is the “grounding” wire. Never connect this green wire to a “live” terminal. If you replace the plug on the power cord, be sure to connect the green wire only to the grounding (longest) prong on a 3-prong plug.

If in doubt, call a qualified electrician and have the receptacle checked for ground.

Cover of Grounded Outlet box

(B)

Adapter

Grounding Means

(C)

EXTENSION CORD

Use only three-wire extension cords that have three-prong grounding-type plugs and three-pole receptacles that accept the compressor’s plug. Replace or repair damaged cord.

Make sure your extension cord is in good condition. When using an extension cord, be sure to use one heavy enough to carry the current your product will draw. An undersized cord will cause a drop in line voltage resulting in loss of power and overheating. Table shows the correct size to use depending on cord length and name plate ampere rating. If in doubt, use the next heavier gage. The smaller the gage number, the heavier the cord.

MINIMUM GAGE FOR CORD SETS

		Total Length of Cord in Feet (Meter)
		0 – 25	26 – 50	51 – 100	101 – 150
		(0 – 7.6)	(7.9 – 15.2)	(15.5 – 30.5)	(30.8 – 45.7)
Ampere	Rating		AWG
More	Not More
Than	Than
0	– 6	18	16	16	14
6	– 10	18	16	14	12
10	– 12	16	16	14	12
12	– 16	14	12		Not Recommended

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