Rockwell RK4248K, Manual

9

RANDOM ORBIT SANDER 

 ENG

the unwanted marks before going on to a finer grit and 
finishing the job.

NOTE:

 Do not use the same sanding sheet for wood and 

metal. Metal particles will be embedded in the sanding 
sheet and will scour a wooden surface.

8. FLUSH SANDING (See Fig. H)

Flush sanding can be performed with the front edge 
of this sander. Upon completion of sanding operation, 
turn sander off and wait until sanding disc comes to a 
complete stop before removing from workpiece.

9. ORBITAL MOTION (See Fig. I)

As shown in Figure H, the orbit diameter of the sander 
is 1/8-in. in diameter so the sandpaper moves in tiny 
circles at very high speed, allowing the sander to move 
easily.
This orbital action duplicates a “hand sanding” motion 
for more aggressive sanding as you push the sander 
forward. This powerful orbital action is ideal for heavy-
duty sanding applications, such as:
1. Removing old finishes
2. Smoothing rough wood
3. Sanding stock down to required dimensions
4. Finishing surfaces that are to be painted.

10. CHANGING THE OUTER/INNER PAD

NOTE:

 Before changing the pad, take off the sanding 

paper.
Take off the Outer Pad by removing the four screws (See 
Fig. J1). Align the new pad according to the screw holes 
and attach the pad using the provided screws. 
Follow the same steps as above to change the Inner 
Pad. Please hold the inner pad firmly while removing or 
attaching the screws. (See Fig. J2)

WORKING HINTS FOR YOUR SANDER

If your power tool becomes too hot, especially when used 
at low speed, set the speed to maximum and run it with 
no load for 2-3 minutes to cool the motor. Avoid prolonged 
usage at very low speeds. Always use sand paper that is 
suitable for the material you want to sand.
Always ensure the work-piece is firmly held or clamped to 
prevent movement.
Any movement of the material may affect the quality of the 
sanding finish.
Start your sander before sanding and turn it off only after 
you stop sanding. For the best results, sand wood in the 
direction of the grain.

Do not start sanding without having the sandpaper fitted.
Do not allow the sandpaper to wear away, it will damage the 
base-plate. The guarantee does not cover base-plate wear 
and tear.
Use coarse grit paper to sand rough surfaces, medium grit 
for smooth surfaces and fine grit for the final surfaces. If 
necessary, first make a test run on scrap material.
Use sandpaper designed for the vibrafree

®

 sander 

specifically.
The sandpaper controls the sanding efficiency, not the 
amount of force you apply to the tool. Excessive force will 
reduce the sanding efficiency and cause motor overload. 
Replacing the sandpaper regularly will maintain optimum 
sanding efficiency.

MAINTAIN TOOLS WITH CARE

Remove the plug from the socket before carrying 
out any adjustment, servicing or maintenance.

Keep tools sharp and clean for better and safer 
performance. Follow instructions for lubricating and 
changing accessories. Inspect tool cords periodically 
and if damaged, have repaired by authorized service 
facility. Your power tool requires no additional 
lubrication or maintenance. There are no user 
serviceable parts in your power tool. Never use water or 
chemical cleaners to clean your power tool. Wipe clean 
with a dry cloth. Always store your power tool in a dry 
place. Keep the motor ventilation slots clean. Keep all 
working controls free of dust. 
If the replacement of the supply cord is necessary, this 
has to be done by the manufacturer or his agent in order 
to avoid a safety hazard .

TROUBLESHOOTING

1.  If your sander will not operate, check the power at 

the electrical plug.

2.  If the sander does not abrade surface, check the 

sanding paper. If the sanding paper has been 
worn, replace the new paper and try again. The 
paper must be kept in a dry place, if it is allowed to 
become damp, the abrasive particles will lose their 
adhesion to the backing paper and will not abrade.

3.  If the sander does not move smoothly, the sanding 

paper may be loose, damaged or wrinkled. Replace 
and try again.

4.  If a fault can not be rectified return the sander to an 

authorized dealer for repair.