Grizzly G0779 User Manual

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Model G0779 (Mfd. Since 09/14)

Tensioning Return

Spring

3. Loosen thumb knob shown in Figure 44

2–3 turns (DO NOT completely remove
thumb knob).

To adjust spring tension:

1. DISCONNECT MACHINE FROM POWER!

2. PUT ON SAFETY GLASSES!

If the return spring should

come loose from the spring

cap and rapidly unwind,

laceration or impact inju-

ries could occur. Always

wear heavy leather gloves

and safety glasses when

adjusting the return spring

tension.

Figure 44. Spring tension components.

Thumb Knob

Spring Cover

Roll Pin

4. Wearing gloves, pull spring cover (Figure

45) out enough so notches just clear roll pin.
HOLD SPRING COVER TIGHTLY during this
step, or force of spring will cause cover to
spin out of your hands.

5. Rotate cover counterclockwise to increase

tension, then push cover back in to engage
roll pin with one of the notches, as shown in

Figure 45, then retighten thumb knob.

Notch

Figure 45. Example of adjusting spring tension

by rotating spring cover to engage next notch

with roll pin.

The  spring  tension  for  automatic  quill  recoil  has
been  pre-set  at  the  factory.  It  should  not  need
adjustment  under  most  normal  circumstances.  If
it  does  need  adjustment,  the  spring  housing  is
located on the left side of the headstock.

Calibrating Depth

Stop

The depth stop can be calibrated to improve
accuracy. Make sure the spindle is retracted all
the way into the quill, then follow the

steps below.

To calibrate depth stop:

1. Lower depth stop (see Figure 46) until point-

er reaches bottom of its travel.

2. Loosen button head cap screw shown in

Figure 46, and position pointer so its upper
edge aligns with zero, then re-tighten screw.

Figure 46. Calibrating depth stop.

Pointer

Button Head

Cap Screw