Rowley DT47 User manual

1
Instruction on 4” Electric Rotary Cutter
I-48
HSS-100
Blade
Front Guard
Cutter Switch
Blade Rear Guard
Oil-Ear
Blade Rear Guard
Thumb Screw
Blade Hole
Figure 1. 4” Rotary Cutter Front View
Blade Lock Screw
Caution
Please read these instructions carefully before using your electric rotary cutter. Unplug the power cable from the power source
before you perform any adjustment or maintenance on the cutter. Unplug the power cable when the cutter is not in use. You
should handle your cutter with extreme caution because of the sharp blade. When using, make sure the cord is always behind
the cutter.
Specication
Voltage: 110 V or 220 V Power: 100 W
Max. Cutting Thickness: 1” Weight: 6 Ib
Operation (See Figure 1)
Adjust the blade front guard to “just above the fabric” to help prevent 1.
cutting a nger or the cord.
Plug power cord into an electric outlet (110V or 220V depending on style 2.
of cutter).
Sharpen the blade by turning the switch on and pushing the grinding 3.
wheel push button as shown in Figure 2 with constant pressure for 10
seconds. The pressure should be large enough to keep the grinding wheel
in continuous contact with the blade to obtain a sharp and uniform cutting
edge. Try a piece of scrap fabric to clean the blade. Repeat this operation
if the blade is not sharp enough.
Your cutter is now ready to cut. Always start the cutter before contacting 4.
the fabric. Hold the cutter securely as you push the cutter steadily forward
along your cutting path. You should practice on a piece of scrap before
using your cutter for the rst time.
Lubrication and Maintenance
Put a drop of machine oil in the hole on the oil-ear (see Figure 1) once 1.
a day if you use the cutter every day. Otherwise put a drop of oil in the
hole on the oil-ear before every use of the cutter.
Unthread the grease feed cap off and inject a small amount of grease into 2.
the grease feed cup after every 50 hours use (see Figure 2).
Clean and brush off any dust or dirt on the backside of the blade and 3.
blade seat by removing the blade after every 50 hours use or whenever
you see a dirt built-up.
Grinding Wheel
Grinding Wheel
Push Button
Grease
Feed Cup
Figure 2. 4” Rotary Cutter Rear View
Grease
Feed Cap
Motor Brush
Carbon
Brush Cap
Blade Replacement
Replace the blade with a new one, Stk#DT47/A, when the diameter of the blade becomes too small to meet the lower blade
properly. The cutter comes with an additional 4” octagon blade. You can use an optional 4” round blade, Stk#DT47/H,
which is better for cutting thin or delicate fabric. Blades are sharp, use caution when handling.
Unplug the power cord.1.
Remove the blade front guard by pulling it upward, and turn the oil-ear outward as shown in Figure 1.2.
Remove the blade rear guard by loosening its thumb screw (see Figure 1).3.
Updated 05/2011

2
Use the blade screw wrench shown in Figure 3 to loosen the blade lock screw 4.
counter clockwise. If the blade turns with the lock screw, you can stop it by insert-
ing one end of the pin (see Figure 3) through the hole in the blade at the location as
shown in Figure 1. There is a hole at the blade seating at that location.
Take out the old blade and put the new blade in. Make sure the two notches on the 5.
blade t into the two pins on the blade seating, and the face of the blade (with the
mark of HSS-100) toward outside.
Figure 3. Special Tools
Blade Screw
Wrench Pin
Pin
Grinding Wheel Shaft
Grinding
Wheel
Loosen
Figure 4. Grinding Wheel Assembly
Sharpening Stone Replacement (See Figure 4)
Unplug the power cord.1.
Remove the felt ring around the grinding wheel shaft with a needle 2.
nose plier.
Insert one end of the pin into the hole on the grinding wheel shaft. 3.
Hold the drill bit with your right hand and turn the grinding wheel
with your left hand until it comes out.
Put a new grinding wheel, 4. Stk#DT47/B, by turning it into the
grinding wheel shaft.
Motor Brush Replacement
If the motor does not run well, you may need to change the motor brushes,
Stk#DT47/C. Motor brushes must be replaced when the carbon length is
less than 1/4 ” as shown in Figure 2.
Unplug the power cord.1.
Unscrew brush cap (see Figure 2) to take out the worn motor brush.2.
Put the new brush in, than screw and tighten the brush cap. You 3.
should change both brushes at the same time so the motor runs
smoothly.
Accessory with the cutter
1 special wrench (see Figure 3) for blade lock screw; 1 pin, 1 syringe of grease; 1 extra octagon blade, 1 grind-
ing stone, 1 pair of motor brushes, 1 brush screw.
Warranty
3 month limited warranty against manufacturer defects of this cutting tool. Abuse or dropping any portion of
this tool will void the warranty.