SECTION 6: SERVICE

Review the troubleshooting tips and procedures in this section to fix your machine if a problem develops. If you need replacement parts or are unsure of your repair skills, feel free to call our Technical Support staff at (570) 546-9663 for assistance.

Troubleshooting

SYMPTOM

 

POSSIBLE CAUSE

 

CORRECTIVE ACTION

 

 

 

 

 

Vibration noise while

1.

The rotating drill chuck is contacting

1.

Remove drill from headstock. Reposition drill cor-

machine is running; noise

 

the headstock assembly.

 

rectly in headstock and tighten.

changes when speed is

2.

The drill is damaged.

2.

Remove drill from headstock. Restart the drill. If the

changed.

 

 

 

vibration noise continues, the drill may be damaged.

 

 

 

 

 

 

 

 

 

Vibration noise is constant

1.

The lathe bed mounting screws are

1.

Tighten mounting screws. If a through mount has not

while machine is running at

 

loose.

 

been used, consider remounting as shown on Page

different speeds.

 

 

 

10.

 

 

 

 

 

 

 

 

 

Extreme vibration.

1.

Lathe bed `mounted on an uneven

1.

Mount on an even work surface.

 

 

surface.

 

 

 

2.

Workpiece mounted incorrectly.

2.

Remount workpiece, making sure that centers are

 

 

 

 

embedded in true center of workpiece.

 

3.

Workpiece warped, out of round, or

3.

Do not use the workpiece; balance workpiece by

 

 

is flawed.

 

turning down unbalanced areas.

 

4.

Workpiece is brushing against the

4.

Unplug the drill from power and hand turn the piece

 

 

lathe bed.

 

one full rotation. If the workpiece hits the bed, it

 

 

 

 

exceeds the maximum swing depth and it cannot be

 

 

 

 

turned without modification.

 

5.

The tailstock live center bearing is

5.

These bearings are sealed in the live center assem-

 

 

worn.

 

bly. Replace live center assembly.

 

 

 

 

 

Chisels grab or dig into

1.

Toolrest set too low or too far from

1.

Read instructions on toolrest positioning on Page 15,

workpiece.

 

the workpiece.

 

then re-adjust toolrest.

 

 

 

2.

Use the correct chisel/tool; educate yourself by read-

 

2.

Wrong chisel/tool being used.

 

ing books, trade magazines, or seeking help from an

 

 

 

 

experienced lathe operator.

 

3.

Chisel/tool dull.

3.

Sharpen or replace the chisel/tool you are using.

 

 

 

 

 

Bad surface on workpiece

1.

Wrong drill speed.

1.

Use trial-and-error to find a better drill speed.

after turning.

2.

Dull chisel or wrong chisel used.

2.

Sharpen chisel or try a different chisel.

 

 

 

 

 

Turning results vary along

1.

Headstock and tailstock are not in

1.

To check alignment, move the tailstock forward until

length of workpiece.

 

alignment.

 

the tip of the live center touches the spur center. The

 

 

 

 

point of contact should be the center of each.

 

 

 

 

 

Tailstock moves.

1.

Tailstock mounting bolt is loose.

1.

Tighten the bolt.

 

2.

Workpiece is too tight in tailstock.

2.

Apply less clamping pressure with tailstock.

 

3.

Excess lubricant on lathe bed.

3.

Remove excess with a clean rag.

 

 

 

 

 

H2669 Hobby Lathe

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Grizzly H2669 owner manual Service, Troubleshooting