! CAUTION

2610009642 10/09 E:2610009642 10/09 E 10/20/09 3:19 PM Page 35

Certain cleaning agents and sol- vents damage plastic parts. Some

of these are: gasoline, carbon tetrachloride, chlori- nated cleaning solvents, ammonia and household detergents that contain ammonia.

Care of Blades

Blades become dull even from cutting regular lum- ber. If you find yourself forcing the saw forward to cut instead of just guiding it through the cut, chances are the blade is dull or coated with wood pitch.

When cleaning gum and wood pitch from blade, un- plug the saw and remove the blade. Remember, blades are designed to cut, so handle carefully. Wipe the blade with kerosene or similar solvent to remove the gum and pitch. Unless you are experienced in sharpening blades, we recommend you do not try.

Tool lubrication

Your Bosch tool has been properly lubricated and is ready to use. It is recommended that tools with gears be regreased with a special gear lubricant at every brush change.

Periodically lubricate moving parts with a silicone, or light oil spray. Do not use grease because it tends to attract and hold sawdust.

Bearings

All bearings in this tools are lubricated with a suffi- cient amount of high grade lubricant for the life of the unit under normal operating conditions. No fur- ther lubrication is required.

Troubleshooting

Troubleshooting Guide - Electrical

pROBlEM

 

CAUSE

 

CORRECTIVE ACTION

 

 

 

 

 

Brake does not stop blade

1.

Brushes not seated or lightly

-

Inspect/clean or replace

in about 5 seconds

 

sticking or worn.

 

brushes (see Maintenance

 

 

 

 

Section).

 

2. Motor overheated from use

-

Use sharp blade.

 

 

of dull blade/too heavy of a

- Use a recommended blade.

 

 

blade, not recommended

- Let saw cool down.

 

 

accessory or rapid on/off

 

 

 

 

cycling.

 

 

 

3.

Blade bolt loose.

-

Tighten blade bolt.

 

4.

Other

-

Authorized service

 

 

 

 

Motor does not start.

1. Check that unit is plugged in.

-

Plug unit in. Use different

 

 

 

 

outlet.

 

2. Power source fuse or

- 15-Amp time delay fuse or

 

 

time delay fuse.

 

circuit breaker.

 

3. Brushes worn.

- See Brush Replacement in

 

 

 

 

the Maintenance and Lubri-

 

 

 

 

cation section.

 

4.

Handle not in usable position.

- Lock handle into one of the

 

 

 

 

four usable positions.

 

5.

Other.

-

Authorized service.

 

 

 

 

Flash of light from motor end-

1. Normal - brake working

 

 

cap when switch is released.

 

properly.

 

 

 

 

 

 

 

-35-

Page 35
Image 35
Bosch Power Tools 5312, 5412L manual Troubleshooting Guide Electrical