-58-
G0600 20" x 60" Big Bore Lathe
Symptom
Possible Cause
Possible Solution
Entire machine
vibrates exces-
sively upon start-
up and while run-
ning.
1. Workpiece is unbalanced.
2. Loose or damaged belt(s).
3. V-belt pulleys are not properly aligned.
4. Worn or broken gear present.
5. Chuck or faceplate has become unbalanced.
6. Spindle bearings badly worn.
1. Reinstall workpiece so it is as centered with the
spindle bore as possible.
2. Tighten/replace the belt as necessary.
3. Align the V-belt pulleys.
4. Inspect gears and replace if necessary.
5. Rebalance chuck or faceplate; contact a local
machine shop for help.
6. Replace spindle bearings.
Bad surface fin-
ish.
1. Wrong RPM or feed rate.
2. Dull tooling or poor tool selection.
3. Too much play in gibs.
4. Tool too high.
1. Adjust for appropriate RPM and feed rate.
2. Sharpen tooling or select a better tool for the intend-
ed operation.
3. Tighten gibs.
4. Lower the tool position.
Can't
remove
tapered tool from
tailstock quill.
1. Quill had not retracted all the way back into the
tailstock.
2. Debris was not removed from taper before
inserting into quill.
1. Turn the quill handwheel until it forces taper out of
quill.
2. Always make sure that taper surfaces are clean.
Cross slide, com-
pound slide, or
carriage feed has
sloppy operation.
1. Gibs are out of adjustment.
2. Handwheel is loose.
3. Lead screw mechanism worn or out of adjust-
ment.
1. Tighten gib screw(s).
2. Tighten handwheel fasteners.
3. Tighten any loose fasteners on lead screw mecha-
nism.
Cross slide, com-
pound slide, or
carriage
feed
handwheel
is
hard to move.
1. Gibs are loaded up with shavings, dust, or
grime.
2. Gib screws are too tight.
3. Backlash setting too tight (cross slide only).
4. Bedways are dry.
1. Remove gibs, clean ways/dovetails, lubricate, and
readjust gibs.
2. Loosen gib screw(s) slightly, and lubricate
bedways.
3. Slightly loosen backlash setting by loosening the
locking screw and adjusting the spanner ring at the
end of the handle.
4. Lubricate bedways and handles.
Cutting tool or
machine
com-
ponents vibrate
excessively dur-
ing cutting.
1. Tool holder not tight enough.
2. Cutting tool sticks too far out of tool holder;
lack of support.
3. Gibs are out of adjustment.
4. Dull cutting tool.
5. Incorrect spindle speed or feed rate.
1. Check for debris, clean, and retighten.
2. Reinstall cutting tool so no more than
1
/
3
of the total
length is sticking out of tool holder.
3. Tighten gib screws at affected component.
4. Replace or resharpen cutting tool.
5. Use the recommended spindle speed.
Inaccurate turn-
ing results from
one end of the
workpiece to the
other.
1. Headstock and tailstock are not properly
aligned with each other.
1. Realign the tailstock to the headstock spindle bore
center line.
Chuck jaws won't
move or don't
move easily.
1. Chips lodged in the jaws.
1. Remove jaws, clean and lubricate chuck threads,
and replace jaws.
Carriage won't
feed.
1. Gears are not all engaged.
2. Gears are broken.
3. Loose screw on the feed handle.
1. Adjust gear positions.
2. Replace.
3. Tighten.
Operation and Work Results
Summary of Contents for G0600
Page 3: ... ...
Page 8: ...G0600 20 x 60 Big Bore Lathe 5 ...
Page 9: ... 6 G0600 20 x 60 Big Bore Lathe ...
Page 12: ...G0600 20 x 60 Big Bore Lathe 9 SECTION 1 SAFETY ...
Page 13: ... 10 G0600 20 x 60 Big Bore Lathe ...
Page 19: ... 16 G0600 20 x 60 Big Bore Lathe Hardware Recognition Chart ...
Page 72: ...G0600 20 x 60 Big Bore Lathe 69 Headstock Face and Shift System 0000 Series Parts ...
Page 73: ... 70 G0600 20 x 60 Big Bore Lathe Headstock Shift System 0000 Series Parts ...
Page 74: ...G0600 20 x 60 Big Bore Lathe 71 Headstock Oil Pump System 0000 Series Parts ...
Page 78: ...G0600 20 x 60 Big Bore Lathe 75 Quick Change Gearbox Gear System 1000 Series Series Parts ...
Page 79: ... 76 G0600 20 x 60 Big Bore Lathe Quick Change Gearbox Face 1000 Series Parts ...
Page 80: ...G0600 20 x 60 Big Bore Lathe 77 Quick Change Gearbox Shift System 1000 Series Parts ...
Page 81: ... 78 G0600 20 x 60 Big Bore Lathe Quick Change Gearbox Shift System 1000 Series Parts ...
Page 84: ...G0600 20 x 60 Big Bore Lathe 81 Carriage 2000 Series Parts ...
Page 85: ... 82 G0600 20 x 60 Big Bore Lathe Cross Slide and Carriage 2000 Series Parts ...
Page 86: ...G0600 20 x 60 Big Bore Lathe 83 Compound Rest and Tool Post 2000 Series Parts ...
Page 87: ... 84 G0600 20 x 60 Big Bore Lathe Carriage Oil Pump System 2000 Series Parts ...
Page 90: ...G0600 20 x 60 Big Bore Lathe 87 Apron Face Thread Dial Auto Stop System 3000 Series Parts ...
Page 91: ... 88 G0600 20 x 60 Big Bore Lathe Apron Gearing Halfnut Feed System 3000 Series Parts ...
Page 92: ...G0600 20 x 60 Big Bore Lathe 89 Apron Feed Rod Clutch and Lever System 3000 Series Parts ...
Page 95: ... 92 G0600 20 x 60 Big Bore Lathe Tailstock 4000 Series Parts ...
Page 97: ... 94 G0600 20 x 60 Big Bore Lathe Bed Assembly 5000 Series Parts ...
Page 98: ...G0600 20 x 60 Big Bore Lathe 95 Brake Pedal and Headstock Panels 5000 Series Parts ...
Page 99: ... 96 G0600 20 x 60 Big Bore Lathe Brake System and Change Gears 5000 Series Parts ...
Page 100: ...G0600 20 x 60 Big Bore Lathe 97 Motor and Headstock Mounting 5000 Series Parts ...
Page 101: ... 98 G0600 20 x 60 Big Bore Lathe End Covers and Splash Guard 5000 Series Parts ...
Page 102: ...G0600 20 x 60 Big Bore Lathe 99 Change Gear System 5000 Series Parts ...
Page 105: ... 102 G0600 20 x 60 Big Bore Lathe Steady and Follow Rests 6000 Series Parts ...
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