JET BG-379-3 , 3" x 79" Belt Grinder 220V 3Ph

Operating Instructions and Parts Manual - Page 8

For BG-379-3. Also, The document are for others JET models: BG-379*

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BG-379-3 photo
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8
7.0 Set-Up and Assembly
7.1 Floor Diagram
Figure 2
7.2 Unpacking and cleanup
Inspect contents of shipping container for shipping
damage. Report any damage to your distributor.
Remove all contents from carton, and compare to
the contents list in this manual. Report any part
shortages to your distributor.
Do not discard carton or packing material until belt
grinder is assembled and running satisfactorily.
Exposed metal areas may have a rust protectant
applied. Remove this with a soft rag and WD-40
®
or kerosene. (Do not use gasoline, paint thinner,
acetone, etc., as these will damage painted
surfaces.)
Contents of shipping container
1 Belt Grinder
1 Instructions and Parts Manual (not shown)
1 Warranty Card (not shown)
7.3 Electrical Connections
Electrical connections must
be made by a qualified electrician in
compliance with all relevant codes. This
machine must be properly grounded to help
prevent electrical shock and possible fatal
injury.
The belt grinder is equipped with a single phase
230 volt only motor; or a 3-phase 230/460V
(prewired 230V) motor. A plug is not included.
You may either install a UL/CSA listed plug
suitable for the specified voltage, or hard-wire the
machine directly to a service panel.
If the machine is to be hard-wired to a panel, make
sure a disconnect is available for the operator.
During hard-wiring of the machine, make sure the
fuses have been removed or the breakers have
been tripped in the circuit to which the machine will
be connected. Place a warning placard on the fuse
holder or circuit breaker to prevent it being turned
on while the machine is being wired.
Grounding Instructions
This machine must be grounded. In the event of a
malfunction or breakdown, grounding provides a
path of least resistance for electric current to
reduce the risk of electric shock.
Improper connection of the equipment-grounding
conductor can result in a risk of electric shock. The
conductor with insulation having an outer surface
that is green with or without yellow stripes, is the
equipment-grounding conductor. If repair or
replacement of the electric cord or plug is
necessary, do not connect the equipment-
grounding conductor to a live terminal.
Check with a qualified electrician or service
personnel if the grounding instructions are not
completely understood, or if in doubt as to whether
the tool is properly grounded. Repair or replace a
damaged or worn cord immediately.
Make sure the voltage of your power supply
matches the specifications on the motor plate of
the belt grinder.
It is recommended that the single-phase belt
grinder be connected to a dedicated, minimum 50
amp circuit with a 50 amp circuit breaker or time-
delay fuse; the three phase belt grinder (at 230
volt operation) be connected to a dedicated
minimum 30 amp circuit with a 30 amp circuit
breaker or time delay fuse; and the three phase
belt grinder (at 460 volt operation) be connected to
a dedicated, minimum 15 amp circuit with 15 amp
circuit breaker or time delay fuse. Local codes
take precedence over recom-mendations.
7.4 Voltage Conversion (3PH only)
To convert the 3-phase belt grinder from 230 to
460 volt operation:
1. Switch the incoming power leads according to
the diagram inside the motor junction box.
Similar diagrams are found in Section 13 of
this manual. (In case of discrepancy, the
diagrams in the motor junction box will take
precedence.)
2. Make sure connections to transformer are
suitable for the new voltage.
3. If a plug is being used, install a UL/CSA listed
plug suitable for 460 volt operation.
Extension Cords
The use of extension cords is discouraged; try to
position machines within reach of the power
source. If an extension cord becomes necessary,
make sure the cord rating is suitable for the
amperage listed on the machine’s motor plate. An
undersized cord will cause a drop in line voltage
resulting in loss of power and overheating.
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