troubleshooting

SECTION 7: SERVICE

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

Troubleshooting

Motor & Electrical

Symptom

Possible Cause

Possible Solution

Machine

does not

1.

Power switch key is removed or not in ON

1.

Install power switch key and turn it to the ON posi-

start or

a breaker

 

position (Model G8146Z only).

 

tion.

trips.

 

2.

Emergency stop push-button is engaged/

2.

Rotate clockwise until it pops out; replace it if faulty.

 

 

 

 

 

faulty (Model G8146Z only).

 

 

 

 

3.

Plug/receptacle is at fault or wired incor-

3.

Test for good contacts; correct the wiring.

 

 

 

rectly.

 

 

 

 

4.

Motor connection wired incorrectly.

4.

Correct motor wiring connections (Page 51).

 

 

5.

Wall fuse/circuit breaker is blown/tripped.

5.

Ensure circuit size is suitable for this machine;

 

 

 

 

 

replace weak breaker.

 

 

6.

Power supply switched OFF or is at fault.

6.

Ensure power supply is switched on; ensure power

 

 

 

 

 

supply has the correct voltage.

 

 

7.

Wiring is open/has high resistance.

7.

Check for broken wires or disconnected/corroded

 

 

 

 

 

connections, and repair/replace as necessary.

 

 

8.

Start/Stop switch is at fault (Model G8144Z/

8.

Replace Start/Stop switch.

 

 

 

G8145Z).

 

 

 

 

9.

Inverter is at fault.

9.

Replace inverter.

 

 

10. Motor is at fault.

10. Test/repair/replace.

 

 

 

 

 

Machine stalls or is

1.

Feeding workpiece too fast.

1.

Reduce feed rate; increase blade speed.

overloaded.

2.

Workpiece alignment is poor.

2.

Eliminate workpiece binding; use jig, fence, guide,

 

 

 

 

 

clamps, roller table, or push blocks as required for

 

 

 

 

 

workpiece alignment control.

 

 

3.

Wrong workpiece material or blade.

3.

Use metal with correct properties for your type of

 

 

 

 

 

machining; match blade with workpiece and opera-

 

 

 

 

 

tion.

 

 

4.

Blade is slipping on wheels.

4.

Adjust blade tracking and tension (Page 29), redress

 

 

 

 

 

rubber wheel tires if necessary (Page 37).

 

 

5.

Motor connection is wired incorrectly.

5.

Correct motor wiring connections (Page 51).

 

 

6.

V-belt(s) slipping.

6.

Replace bad V-belt(s) as a matched set, align pul-

 

 

 

 

 

leys, and re-tension (Page 41).

 

 

7.

Plug/receptacle is at fault.

7.

Test for good contacts; correct the wiring.

 

 

8.

Pulley/sprocket slipping on shaft.

8.

Replace loose pulley/shaft.

 

 

9.

Motor bearings are at fault.

9.

Test by rotating shaft; rotational grinding/loose shaft

 

 

 

 

 

requires bearing replacement.

 

 

10. Machine is undersized for the task.

10. Use sharp blade with lower TPI; reduce the feed

 

 

 

 

 

rate; use a small amount of oil-based coolant if nec-

 

 

 

 

 

essary.

 

 

11. Motor has overheated.

11. Clean off motor, let cool, and reduce workload.

 

 

12. Motor is at fault.

12. Test/repair/replace.

 

 

 

 

 

 

G8144Z/G8145Z/G8146Z

-39-

Vertical Metal Cutting Bandsaw

 

Page 41
Image 41
Grizzly G8144Z, G8145Z, G8146Z owner manual Service, Troubleshooting, Motor & Electrical

G8144Z, G8146Z, G8145Z specifications

Grizzly G8145Z, G8146Z, and G8144Z are a trio of high-performance wood lathe machines designed for serious woodworkers and artisans. Each model in this series provides distinct features and capabilities that cater to various turning needs, from hobbyist projects to professional craftsmanship.

The Grizzly G8145Z is particularly known for its robust construction and versatility. It features a powerful 2 HP motor that delivers ample torque for handling both hard and softwoods with ease. The lathe's variable speed control allows users to adjust speeds from 600 to 2400 RPM, providing flexibility for a wide range of turning applications. The 14-inch swing over bed and a 40-inch between centers make it suitable for turning larger pieces, with precise control afforded by its heavy-duty cast iron bed.

The G8146Z model ups the ante with enhanced features geared toward professional woodturners. It boasts a larger 16-inch swing and a 48-inch distance between centers, accommodating more extensive workpieces. The innovative digital readout provides accurate spindle speed and position information, which enhances user precision and convenience. Additionally, the G8146Z comes with an advanced electronic speed control system that maintains consistent speeds under load, ensuring smooth operation no matter the project.

Complementing this impressive lineup is the G8144Z, a lathe designed with both user-friendliness and versatility in mind. With a 1 HP motor, it is perfectly suited for beginners and intermediate woodworkers alike. The G8144Z features a 12-inch swing and a 36-inch bed length, making it an excellent choice for smaller projects while still capable of handling a variety of turning tasks. Its easy-to-use tailstock and tool rest adjustments make setup and operation straightforward, allowing users to focus on their creativity rather than on mechanisms.

All three models come with several safety features, including a quick release tailstock and a spindle lock, ensuring secure operation. Moreover, they are equipped with robust dust ports that help maintain a clean workspace. Each lathe also supports various accessories, such as different types of tool rests and faceplates, giving woodworkers the options they need for specialized turning.

In conclusion, the Grizzly G8145Z, G8146Z, and G8144Z wood lathes stand out in their class due to their powerful motors, adjustable speeds, and user-friendly designs. Whether you’re a novice looking to develop your skills or a seasoned pro producing intricate designs, these lathes provide excellent performance and reliability for all your woodturning projects.