Sumake STH-12A User manual

1
Operation Manual
ITEM NO.: STH-12A, STH-12B, STH-12C
PNEUMATIC TAPPING HAND TOOL
Description
The STH-12 Pneumatic Hand Tapping Tool has a die cast aluminum body with textured finish and taps holes from 2mm to
12mm diameter. Exhaust is directed away from the operator.The STH-12 Pneumatic Hand Tool is and excellent tool for
tapping beams, blocks and other large castings.
Unpacking
Please check for completeness. Refer to the below figure of STH-12A, STH-12B, STH-12C
Safety Rules
Some dust created by power sanding sawing, grinding, drilling and other construction activities contains chemicals
known to cause cancer, birth defects or other reproductive harm.
Always follow proper operating procedures as defined in this manual-even if you are familiar with use of this or similar
tools. Remember that being careless for even a fraction of a second can result in severe personal injury.
Be alert and think clearly. Never operate power tools when tried, intoxicated o when taking medications that cause
drowsiness.
STH-12-I-1806B-T4

2
Be prepared for job
Wear proper apparel. Do not wear loose clothing, gloves, neckties, rings, bracelets or other jewelry which may get
caught in moving pasts of machine.
Wear protective hair covering to contain ling hair.
Wear safety glasses (not everyday glasses) and shoes with non-slip soles.
Wear dust mask and dustless clothes if operation is dusty.
Wear ear protection if the work area may include exposure to excessive noise levels.
Keep work area ventilation and clean. It should be properly lighted. Cluttered work areas invite accidents.
Do not use the tools in dangerous environments or wet locations. Do not expose it t rain.
Always disconnect tool from air supply when servicing or adjusting tool and when tool is not in use.
Preparation before operation
1. the pneumatic tapping tool operates on compressed air at pressure from 7 to 9 kgf/cm2
2. Never exceed maximum pressure.
3. Air operated tools require clean, dry, lubricated, compressed air t ensure top performance, low maintenance and long
life.
4. Moisture will reduce tool performance and life if not removed from compressed air.
5. Lubricate tool with quality pneumatic tapping tool oil is required.
Note: recommend to use light and heat-resistant oil.
If a filter-regulator-lubricator system us used, please keep 3-5 drops/minute while operating.
If no air line lubricator is used, place five to six drops of oil into the tool body before operating. (add quality
pneumatic oil from parts no. 22 and 23)
Assembly
STH-12A, STH-12B
1. Assembly the wrench (refer part no.1 and 2) from the front of tap to the tool body.
2. Position wrench at 90∘to the left of body (see figure 1) and tighten wrench in position by turning handle clockwise.
(Position wrench to the right if you are left handed.)
3. Insert tap (not included) into tap chuck tightening by screws to ensure the tap is tight in chuck.
STH-12A: by using hex wrench to adjust the screw.
STH-12B: by using the wrench (included) to adjust the gear.
STH-12C
1. Slide wrench (refer part no. 1 and 2) from the front of tap to the tool body.
2. Position wrench at 90∘to the left of body (see figure 1) and tighten wrench in position by turning handle clockwise.
(Position wrench to the right if you are left handed.)
3. Slide tap (not included) into tap holder until tap licks in place, tap can be removed by simultaneously depressing flange
and pulling out tap.
4. Insert collet with tap into chuck. Pull back chuck sleeve, insert collet with tabs aligned to slots in chuck sleeve, and then
release sleeve (see figure 3)
Operation
1. Take the spindle with tap to the hole to be tapped and place the tip of the tap in the hole.
2. Press the [ L] operation lever (refer part no. 57). The tap will self-center and begin tapping.
3. After tapping to the required depth, press the [ R ] reverse button (refer part no. 57).The tap will reverse out from the
hole.
Note:
The signs of [ L] and [ R ] show on the tool body
Use only enough air pressure to perform the operation.Air pressure in excess of that which is required will make
the operation inefficient and may cause premature wear or damage to the tool.

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Maintenance
1. Always unplug tool prior to inspection.
2. Do not adjust, remove or maintain tool in operation.
3. Consult manual for specific maintaining and adjusting procedures.
4. Keep tool lubricated and clean for sagest operation.
5. Remove adjusting tools. Form habit of checking to see that adjusting tools are removed before switching machine on.
6. Check for damaged parts. It may affect a tool’s operation.
7. Damaged parts should be properly repaired or replaced. Do not perform makeshift repairs.
8. Never brush away chips while the machine is in operation.All clean up clean up should be done when the machine is
stopped.
9. Never modify machine with out consulting manufacturer.
Maintenance
1. Keep visitors at a safe distance from work area.
2. Keep children out of workplace.
3. All workpieces must be clamped to work table then using tapping tool. It is unsafe to use your hands to hold any
workpiece.
4. Do not force tool. It will work most efficiently at the rate for which it was designed.
5. Keep hands away from moving parts. Protect hands from possible injury.
6. Never leave a tool running unattended
7. Do not use tool for a long time. Please take a rest for 5-10 minutes after using one hour.
Troubleshooting Chart
S
y
mptom Possible cause(s) CorrectiveAction
Tool runs slowly or will not operate
1. Grit in Tool 1. Flush the tool with air tool oil
2. No oil in tool 2. Lubricate the tool according to the
Lubrication instructions in the manual
(see no. 5 of preparation before operation)
3. Low air pressure 3. Chuck the air pressure, it need to be
between 7 to 9 kgf/cm²
4. Air hose leaks 4. Tighten and seal hose fittings
5. Pressure drops 5. Shorten length of hose
Note: long runs may reduce the air pressure.
It requires 7 to 9 kgf/cm²
6. Excessive pressure drop 6. Air compressor not large enough. Please
make sure the compressor can support the
tool from 7 to 9 kgf/cm²
7. Worn vanes in motor 7. Replace any worn parts.
Moisture blowing out of tool exhaust Water in air compressor tank Drain tank Exhaust
Tool operates rapidly but will not tap Damage to parts Inspect and replace any damaged gears
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www.AIRCOMPRESSOR.com.tw

STH-12C
PARTS LIST
No. Parts No. Descri
p
tion Q't
y
No. Parts No. Descri
p
tion Q't
y
1 STH12-01 Fastemer Handle 1 35 STH12-35 C
y
linder Back Cove
r
1
2 STH12-02 Fastener 1 36 STH12-36 Screw 4
3 STH12-03 Oil Seal 1 37 STH12-37 Muffler Cover 1
4 STH12-04 Front Ca
p
1 38 STH12-38 Reverse Button 1
5 STH12-05 Bearin
g
1 39 STH12-39 Pin 2
6 STH12-06 Washe
r
4 40 STH12-40 Cavit
y
Pin 1
7 STH12-07 Planetar
y
Gear Seat 1 41 STH12-41 Pin 1
8 STH12-08 Pin 2 42 STH12-42 Oil Seal 4
9 STH12-09 Needle Bearin
g
2 43 STH12-43 Reverse Valve 2
10 STH12-10 Planetar
y
Gear 4 44 STH12-44 Reverse Shaft 2
11 STH12-11 Planetar
y
Gear Seat 1 45 STH12-45 Oil Seal 2
12 STH12-12 Bearin
g
3 46 STH12-46 Oil Seal 2
13 STH12-13 C-Rin
g
1 47 STH12-47 Oil Seal 2
14 STH12-14 Screw 1
15 STH12-15 Inner Gear 1 1 STH12C-01 C-Rin
g
1
16 STH12-16 Muffler Cover 1 2 STH12C-02 Nut 1
17 STH12-17 Screw 1 3 STH12C-03 Disk S
p
rin
g
7
18 STH12-18 Cavit
y
Pin 2 4 STH12C-04 Fixed Seat 1
19 STH12-19 Muffler 1 5 STH12C-05 Ca
p
6
20 STH12-20 Pin 2 6 STH12C-06 Steel Shot 1
21 STH12-21 Needle Bearin
g
1 7 STH12C-07 S
p
rin
g
1
22 STH12-22 Connector 1 8 STH12C-08 Steel Shot 2
23 STH12-23 Filte
r
1 9 STH12C-09 Bod
y
1
24 STH12-24 Bearin
g
1 10 STH12C-10 Junction Socket 4
25 STH12-25 C
y
linder Ca
p
1 11 STH12C-11 Socket 1
26 STH12-26 C
y
linde
r
1 12 STH12C-12 C-Rin
g
3
27 STH12-27 Cavit
y
Pin 3 13 STH12C-13 Socket 1
28 STH12-28 C
y
linder Arbor 1 14 STH12C-14 S
p
rin
g
1
29 STH12-29 Rotor Blade 5 15 STH12C-15 C-Rin
g
1
30 STH12-30
A
ir Inhalant Cover 1 16 STH12C-16 To
p
1
31 STH12-31 Bearin
g
1 17 STH12C-17 S
p
rin
g
1
32 STH12-32 S-Rin
g
1 18 STH12C-18 Steel Shot 3
33 STH12-33 Tool Bod
y
1 19 STH12C-19 B12 Bod
y
1
34 STH12-34 C
y
linder Back Cover S
p
acer 1 STH-12C-P-1505A-T4
PNEUMATIC TAPPING HAND TOOL, TAPPING CAPACITY:M2~M12
Head For STH-12C