Jet IBG-8, Operating Instructions And Parts Manual

11

Table 1 shows the correct size to use depending 
on cord length and nameplate ampere rating. If in 
doubt, use the next heavier gage. The smaller the 
gage number (AWG), the heavier the cord. 

Ampere 
Rating 

Volts 

Total length of  
cord in feet 

More 
Than 

Not 
More 
Than 

120 
240 

25 
50 

50 
100 

100 
200 

150 
300 

 AWG 

00 06  

18 

16 

16  14 

06 10  

18 

16 

14  12 

10 12  

16 

16 

14  12 

12 16  

14 

12 

Not 
Recommended 

Extension Cord Recommendations 

Table 1 

6.3

  Voltage conversion 

To change voltage input to 230V on the IBG-8 and 
IBG-10: 

1.  Turn grinder over and remove the base plate. 

2.  Rewire the leads according to the appropriate 

diagram in 

sect. 13.0.

3.  Remove the existing plug from the grinder 

cable and attach a UL/CSA listed plug 
designed for 230V power. 

7.0

  Operation 

A bench grinder is designed for hand-grinding 
operations such as sharpening chisels, 
screwdrivers, drill bits, removing excess metal, and 
smoothing metal surfaces. 

A 

Medium Grain Abrasive Grinding Wheel 

is 

suitable for rough grinding where a considerable 
amount of metal must be removed or when 
obtaining a smooth finish is not important. 

A 

Fine Grain Abrasive Grinding Wheel 

should be 

used for sharpening tools or grinding to close size 
tolerances because it removes metal more 
gradually for precision grinding and achieves a 
smoother finish. 

 Always use approved safety 

glasses or face shield while operating grinder. 
Failure to comply may cause serious injury. 

7.1

  On/Off Switch 

IBG-8, IBG-10

: Pull the paddle switch (A, Figure 9) 

to start grinder, push to stop. The safety key (A

1

) 

can be removed to prevent unauthorized use of the 
grinder. The safety key must be inserted to restart 
the grinder. 

IBG-12

: Push green button to start grinder. Push 

red button to stop. 

On all models, when the stop 

button is pushed, the wheels may take a few 
moments to completely stop. 

Note: After extended operation, the grinder 
housing may be warm to the touch. 

Figure 9:  safety key 

7.2

  Precautions 

1.  Before starting the grinder, turn the wheels by 

hand to verify that they are clear of 
obstructions and they turn freely. The tool 
rests and spark guards should not touch the 
wheel. 

2.  Keep tool rests and spark guards to within 

1/16" of the grinding wheel. 

3.  Turn on the grinder and allow it to reach full 

running speed before starting to grind. 

4.  Adjust the eye shields as needed. 

5.  Keep a steady, moderate pressure on the 

workpiece and keep it moving at an even pace 
for smooth grinding. Pressing too hard 
overheats the motor and prematurely wears 
the grinding wheels. Note the original bevel 
angle on the item to be sharpened and try to 
maintain the same shape. The grinding wheel 
should rotate into the object being sharpened. 

6.  If grinding a narrow workpiece, slide it laterally 

across the width of the wheel. Using the full 
width of the wheel will help prevent a groove 
from forming at one place on the wheel. 

7.  Keep the water pot filled with water and dip 

your work into it regularly to prevent 
overheating. Overheating can weaken metals. 
Do not apply water directly to the grinding 
wheels. 

8.  Do not use the side of the grinding wheel; this 

puts dangerous stress on the wheel. 

9.  When the wheel becomes loaded or dull, use 

an approved grinding wheel dresser and dress 
the wheel face.