SSI TC-20 User manual

Tube Cut-Off Machine
Operator’s Manual
90-2333RES REV A

CAUTION HIGH VOLTAGE
CAUTION - REFER TO MANUAL
EARTH GROUND
SAFETY SYMBOLS

i
TABLE OF CONTENTS
1INTRODUCTION ....................................................................................................1-1
1.1 Important Safety Notices.......................................................................................... 1-1
1.2 Description of the Model TC-20 Tube Cut-Off Machine......................................... 1-1
2INSTALLATION AND USE ....................................................................................2-2
3ROUTINE MAINTENANCE ....................................................................................3-3
3.1 Changing the Cutting Wheel.................................................................................... 3-3
3.2 Changing the Dressing Tool.................................................................................... 3-4
4SPARE PARTS ......................................................................................................4-1
4.1 Spare Parts for your TC-20 Tube Cut-Off Tool....................................................... 4-1
5VOLTAGE CONVERSION PROCEDURES...........................................................5-1
5.1 Convert from 115 VAC to 230 VAC.......................................................................... 5-1
5.2 Convert from 230 VAC to 115 VAC.......................................................................... 5-2
6GENERAL SAFETY RULES..................................................................................6-1
6.1 Work Area.................................................................................................................. 6-1
6.2 Electrical Safety........................................................................................................ 6-1
6.3 Personal Safety......................................................................................................... 6-1
6.4 Tool Use and Care .................................................................................................... 6-1
6.5 Service....................................................................................................................... 6-2

1-1
1 INTRODUCTION
This operator's manual contains information needed to install, operate, perform user
maintenance on, and service the Model TC-20 Tube Cut-Off Machine.
1.1 Important Safety Notices
To ensure safe and satisfactory operation of this equipment, it is essential
that the ground wire of the power cord is connected to a ground that
complies with all national, state, and local electrical codes.
Before using this equipment read the instructions carefully, paying
particular attention to potential hazards arising from its use.
Even with the power switch turned off there is still voltage on the input side of the
switch and therefore the equipment must be unplugged before lifting the front cover.
This equipment contains a safety interlock switch for the lid. Closure screws must be
fully tightened for equipment to operate.
WARNING: SAFETY GLASSES SHOULD ALWAYS BE WORN WHILE
MACHINE IS IN USE.
WARNING: DO NOT CUT TUBING NEAR ORGANIC VAPORS.
1.2 Description of the Model TC-20 Tube Cut-Off Machine
The Tube Cut-Off Machine has been designed for light or intermittent duty using a
high-speed, dry abrasive cut-off wheel housed in a protective cabinet. The motor
speed, wheel, and cutting arm are carefully matched and aligned to provide safe,
square cutting of 1/16, 1/8 and 1/4 inch (1.6, 3.2 and 6.4 mm) OD stainless steel
tubing with ID down to 0.008 inches (0.2 mm). The unique dressing tool deburrs by
shaving the OD and ID with hard tool-steel cutting edges. Properly maintained, the
TC-20 should provide years of trouble free operation.

2-2
2 INSTALLATION AND USE
1. Plug the Tube Cut-Off Machine into a properly grounded outlet. Be sure that the
line voltage matches the voltage rating on the left side of the unit.
2. For 115V operation use 93-5062: Fuse 5 amp SLO-BLO, 1 each
Install fuse opposite clip on fuse holder, insert fuse holder so 115V appears
through window in fuse door.
For 230V operation use 93-5062: Fuse 5 amp SLO-BLO, 2 each
Remove clip on fuse holder to install both fuses. Insert fuse holder so 230V
appears through window in fuse door.
3. Place the tubing to be cut into the vise-clamp on the end of the cutting arm and
tighten. Be certain the tubing is as straight as possible for best results.
4. Turn on the high-speed abrasive wheel and lower the arm to direct the tubing into
the slot. (Safety glasses should be worn while machine is in use.) Raise and lower
the arm several times to make certain the tube-end in the vise arm is square cut.
Turn off the cutting wheel.
5. Discard the short piece that has been cut off, turn the tube around in the vise and
square-cut the other end. Measure carefully before cutting.* The tube in the vise is
now ready for deburring. The piece not held by the vise arm usually will not be
square or suitable for deburring, unless it is also firmly captured during the cutting
operation.
6. Deburr by inserting the tube into the appropriate size dressing tool on the opposite
end of the cutting arm and turning the knurled nut clockwise. Always turn the
dressing tool in the same direction, like a pencil sharpener. Light pressure and
several revolutions are sufficient in most cases to remove burrs from the OD and
ID of the tubing. Results will improve with practice.
*Scale on lid is for reference only.

3-3
3 ROUTINE MAINTENANCE
Figure 1. Cutting Wheel and Arbor
3.1 Changing the Cutting Wheel
Eventually, both cutting wheel and dressing tools will have to be replaced. A cutting
wheel must be replaced when it wears down below the cutting slot. Occasionally, a
wheel may also break or clog with fine steel particles .To change the cutting wheel,
follow the instructions below.
1. Unplug the power cord, and then remove the two thumbscrews on the front
cover. Do not attempt to bypass the open cover safety switch. Doing so
could allow the cutting wheel to start unexpectedly.
Do not adjust arbor (behind cutting wheel). Two setscrews hold it
in correct alignment to the cover slot.
2. Hold the arbor (A) on the motor side of the cutting wheel (see Figure 1) and
turn the knurled nut (B) counterclockwise to remove.
3. Remove the cutting wheel carefully from hub using your fingertips to hold the
edge of the wheel.
4. Insert the new cutting wheel, carefully into place and keeping the cardboard
washers on each side.

3-4
5. Replace the knurled nut while holding the arbor on the motor side. The knurled
nut should be tightened to its original finger-light position.
6. Before closing the cover, brush or vacuum dust from inside the case.
3.2 Changing the Dressing Tool
A dressing tool should be replaced when it gets dull and pushes rather than shaves
burrs. The needle insert (see Figure 2) that deburrs the ID will break or wear out
more frequently than the body that deburrs the OD. To replace the dressing tool:
1. Remove the dressing tool from the vise arm by opening the C-ring. The needle
insert is held inside the tool body by a set screw.
2. Note the position of the needle Insert cutting tip before loosening the set
screw. Remove and replace the needle to the same position. Normally the
back of the insert will be flush with the back of the tool body.
3. Tighten the set screw and replace the dressing tool and C-ring.
Figure 2. Dressing Tool Assembly

4-1
4 SPARE PARTS
4.1 Spare Parts for your TC-20 Tube Cut-Off Tool
P/N
Description
100124
Replacement Cutting Wheel, pack of 3
100116
1/16” Dressing Tool
101016
Replacement Needle Insert for 1/16” Dressing Tool
100118
1/8” Dressing Tool
101018
Replacement Needle Insert for 1/8” Dressing Tool
935062
Fuse, 5 Amp, Slo-Blo (115V)
935062
Fuses, Slo-Blo (230V), 2 each

5-1
5 VOLTAGE CONVERSION PROCEDURES
5.1 Convert from 115 VAC to 230 VAC
1. Remove the power cord from the power entry module (see Figure 3)
located in the rear of the unit.
2. Using a small, flat-blade screwdriver, carefully pry out the power entry
module cover at point A, Figure 3. The hinged cover will swing down as
shown in Figure 4.
Figure 3 Figure 4
3. Using a small, flat-blade screwdriver, carefully pry out at the top of the fuse
tray and carefully remove the fuse tray as illustrated in Figure 4.
Figure 5. Fuse Tray.
4. Holding the fuse tray in the exact orientation shown in Figure 5, observe
the small clip shown in Figure 5. Grasp at the two sides of the clip gently
remove from the tray assembly as shown in Figure 5.

5-2
5. Place one fuse into the compartment where the clip was removed in step 4.
The fuse ratings must be as shown on the back of the unit cabinet. The
European 20 mm long fuses must be placed fully to the rearmost end of
the tray (closest to the metal tabs extending from the tray), or contact will
not be made and the unit will not operate. Both fuses must be present to
complete the circuit.
6. With the two proper fuses in the tray, orient the tray with the two fuses at
the sides and the 230V marking at the top, as shown in Figure 4, and insert
it with the metal tabs first into the top of the power entry module until it is
firmly seated in place. It may be necessary to squeeze the two fuses at the
rear to permit them to enter the power module housing. Close the power
entry module cover by pressing at the top center until it snaps into place.
Insert a suitable 230V power cord.
5.2 Convert from 230 VAC to 115 VAC
1. Remove the power cord from the power entry module (see Figure 3)
located in the rear of the unit.
2. Using a small, flat-blade screwdriver, carefully pry out the power entry
module cover at point A, Figure 3. The hinged cover will swing down as
shown in Figure 4.
3. Using a small, flat-blade screwdriver, carefully pry out at the top of the fuse
tray and carefully remove the tray as illustrated in Figure 4.
4. Observe the shorting clip in Figure 5 and remove the fuse present in the
fuse tray where the shorting clip will go by gently lifting it up at the rearmost
end of the tray (where the metal tab extends) and removing the fuse from
its retaining clip.
5. Observe the shorting clip placement as shown in Figure 5. Place a shorting
clip by hand onto the tray as follows. The tray must be oriented as drawn
(the marking PRSR will be at the top of the fuse tray front). The clip must
be oriented as shown with the “finger” at the center pointing toward the
front of the tray. Do not bend this finger or the required connections will not
be made. Grasping the clip only at the sides, slide it down into place on the
tray. The base of the clip will insert into the cavity in the tray when it is
placed in the correct position. Place one fuse into the compartment in the
side of the fuse tray opposite the side with the clip. The fuse rating must be
as shown on the back of the unit cabinet. A 20 mm long European fuse
must be placed fully to the rearmost end of the tray (closest to the metal
tabs extending from the tray) or contact will not be made and the unit will
not operate. Both the clip and the fuse must be present in their proper
places or the unit will not operate. With the clip and proper fuse in the tray,
orient the tray with the fuse at the side and the 115V marking at the top, as
shown in Figure 4, and insert it with the metal tabs first into the top of the
power entry module until it is firmly seated in place. It may be necessary to
squeeze the fuse at the rear to permit it to enter the power module
housing. (If the clip and fuse are on the incorrect sides of the tray, it will not
be possible to place the tray into the power entry module). Close the power
entry module cover by pressing at the top center until it snaps into place.
Insert a suitable 115V power cord.

6-1
6 GENERAL SAFETY RULES
WARNING! Read and understand all instructions. Failure to follow all
instructions listed below may result in electric shock, fire and/or serious
personal injury.
6.1 Work Area
• Keep your work area clean and well lit. Cluttered benched and dark areas
invite accidents.
• Do not operate power tools in explosive atmospheres, such as in the
presence of flammable liquids, gases, or dust. Power tools create sparks
which may ignite the dust or fumes.
• Keep bystanders, children, and visitors away while operating a power tool.
Distractions can cause you to lose control of the tool.
6.2 Electrical Safety
• Do not abuse the cord. Never use the cord to carry the tool. Keep cord away
from heat, oil, sharp edges, or moving parts. Replace damaged cords
immediately. Damaged cords may create a fire.
6.3 Personal Safety
• Stay alert, watch what you are dong and use common sense when
operating a power tool. Do not use tool while tired or under the influence of
drugs, alcohol, or medication. A moment of inattention while operating may result
in serious personal injury.
• Dress properly. Do not were loose clothing or jewelry. Contain long hair. Keep
your hair, clothing, and gloves away from moving parts. Loose clothing, jewelry, or
long hair can be caught in moving parts.
• Avoid accidental starting. Be sure switch is in the off position before inserting
the AC power cord.
• Do not overreach. Keep proper footing and balance at all times. Proper footing
and balance enables better control of the tool in unexpected situations.
• Use safety equipment. Always wear eye protection. Dust mask, non-skid safety
shoes, hard hat, or hearing protection must be used for appropriate conditions.
6.4 Tool Use and Care
• Operate this tool on a stable surface. Holding the unit by hand or against the
body is unstable and may lead to loss of control.
• Do not force tool. Use the correct tool for your application. The correct tool will
do the job better and safer at the rate for which it was designed.
• Do not use tool if switch does not turn it on or off. A tool that cannot be
controlled with the switch is dangerous and must be repaired.

6-2
• Store idle tool out of reach of children and other untrained persons. Tools
are dangerous in the hands of untrained users.
• Maintain tools with care. Keep cutting tool clean.
• Check for misalignment or binding of moving parts, breakage of parts, and
any other condition that may affect the tools operation. If damaged, have the
tool serviced before using.
• Use only accessories that are recommended by the manufacturer.
6.5 Service
• Tools service must be performed only by qualified repair personnel.
Service or maintenance performed by unqualified personnel may result in risk of
injury.
• When servicing a tool, use only identical replacement parts. Follow the
instructions of this manual. Use of unauthorized parts or failure to follow
instructions may create a risk of shock or injury.