Grizzly H8368 Instructions Download Page 4

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H8368 Electric Power Drawbar

Power Connection Device

The type of plug required to connect your machine 
to power depends on the type of service you cur-
rently  have  or  plan  to  install.  We  recommend 
using the plug shown in 

Figure 

10

.

Electrocution or fire could 

result  if  machine  is  not 

grounded and installed in 

compliance with electrical 

codes.  Compliance  MUST 

be  verified  by  a  qualified 

electrician!

Figure 

10

.

 NEMA 6-15 plug and receptacle.

Operation

1.

  Connect the drawbar unit to power.

Cutting  tools  are  sharp!  When  using  the 

power drawbar, the tooling may spin a little. 

Protect  your  hands  when  using  the  power 

drawbar to load or unload tooling.

2.

  To install tooling:

 

a.

  Insert  the  tooling  into  the  spindle  in  the 

normal  manner  that  is  correct  for  your 
mill,  and  up  against  the  bottom  of  the 
drawbar assembly.

b.

  Press  the  IN  button  on  the  drawbar 

switch to activate the drawbar motor and 
thread the drawbar into the tooling.

 

Note: 

When  the  tooling  is  fully  secure  and 

you  can  hear  the  drawbar  motor  begin  to 
"ratchet",  release  the  IN  button.  DO  NOT 
overly tighten the tooling.

3. 

To un-install tooling, press the OUT button of 
the  drawbar  switch  to  release  and  unthread 
the tooling.

 

Note: 

As  the  tooling  is  released  from  the 

drawbar,  it  could  suddenly  drop  out  of  the 
spindle.

5.

  Tuck the plugs and cords around the top part 

of the motor, then slide the motor cover over 
the motor so that the switch cord strain relief 
mounts to the slot in the cover.

6.

  Secure  the  motor  cover  to  the  aluminum 

mounting plate with the three M4-.7 x 8 cap 
screws.

7.

  Mount the switch in a convenient position on 

your mill (see 

Figure 2

 on 

Page 1

).

If  you  need  help  with  your  new  electric  power 
drawbar,  call  our  Tech  Support  at:  (570)  546-
9663.

Power Supply Circuit Requirements

You MUST connect the electric power drawbar to 
a grounded circuit that is rated for the amperage 
given  below.  Never  replace  a  circuit  breaker  on 
an  existing  circuit  with  one  of  higher  amperage 
without consulting a qualified electrician to ensure 
compliance with wiring codes. 

If you are unsure 

about  the  wiring  codes  in  your  area  or  you 

plan to connect your machine to a shared cir-

cuit, consult a qualified electrician.

Minimum 220V Circuit Size ...................15 Amps

Full Load Amperage Draw

This  machine  draws  the  following  amps  under 
maximum load:

Amp Draw ............................................. 7.5 Amps

Summary of Contents for H8368

Page 1: ... PRINTED IN TAIWAN Bolt Bag Contents Qty Cap Screws M6 1 x 25 3 Lock Washers 6mm 3 Cap Screws M6 1 x 12 2 Flat Washers 6mm 2 Cap Screw M4 7 x 8 3 Pins 4 x 23mm 2 Cable Tie 1 Figure 2 Example of the Model H8368 power drawbar mounted on a mill If any nonproprietary parts are missing e g a nut or a washer we will gladly replace them or for the sake of expediency replacements can be obtained at your l...

Page 2: ...ing bolt head is larger than 24mm make a section that equals the diameter of your mill s bolt head and attach it to the end of the new bolt head see B in Figure 4 If your mill does not allow the bolt head to be inserted into the spindle cavity then you must build a drawbar motor mounting adapter that will allow only the full spline to be above the mounting surface see Figure 5 Note Before making a...

Page 3: ...ad bolt to remove 6 Center drill and drill the bottom of the new bolt head to provide a tight press fit 13 4 deep hole for the new drawbar shaft Note It is critical for proper operation of the power drawbar and mill that the fit of the drawbar shaft into the bolt head is exactly centered and press fit tight Figure 9 Example of pins securing new drawbar shaft to the new head bolt Installation 1 Pre...

Page 4: ...verly tighten the tooling 3 To un install tooling press the OUT button of the drawbar switch to release and unthread the tooling Note As the tooling is released from the drawbar it could suddenly drop out of the spindle 5 Tuck the plugs and cords around the top part of the motor then slide the motor cover over the motor so that the switch cord strain relief mounts to the slot in the cover 6 Secure...

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