Grizzly G0796 Owner's Manual page 55

Vertical mill w/power feed & dro
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Power Feed
Symptom
Possible Cause
Powerfeed does
1. Table locked.
not move table or is
2. Drive selector not engaged.
slipping.
3. Sheared pin.
4. Gears not meshing or teeth missing.
5. Motor shaft and gear shaft not engaged.
Operates at high
1. Rapid micro switch is stuck.
speed only or is
2. V.R. does not work properly.
inconsistent.
3. Wiring harness unplugged from circuit
board.
Lamp
Symptom
Possible Cause
Lamp will not light.
1. Power not turned on.
2. Bulb is burned out.
3. Short in wiring or wired incorrectly.
Digital Readout Unit (DRO)
Symptom
Possible Cause
DRO does not give
1. DRO is not turned on/plugged in.
reading.
2. Shorted/disconnected wiring/plugs.
DRO reading is
1. Initial reading is incorrect.
incorrect.
2. Sensor has gone bad.
3. Spacing between sensor and scale is
incorrect.
Model G0796/G0797 (Mfd. Since 1/18)
Possible Solution
1. Unlock table locks.
2. Select speed, engage drive selector.
3. Replace pin.
4. Check gears and adjust/replace.
5. Replace clutch.
1. Lightly tap on it to lower it.
2. Test/repair/replace.
3. Reconnect wiring harness.
Possible Solution
1. Press switch/button on lamp or control panel.
2. Replace bulb.
3. Trace and test wiring. Fix any errors.
Possible Solution
1. Press DRO ON/Power button/plug in.
2. Inspect circuit boards, sensors, plugs, and wiring
connections. Replace/repair as necessary.
1. Tare/zero/reset DRO at beginning point.
2. Test/replace sensor as necessary.
3. Adjust spacing between sensor and scale.
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G0797

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