Sumake ST-77481 User manual

1
INSTRUCTION MANUAL
ITEM NO.: ST-77481
WET AIR CUTTING SAW
ST-77481-I-1012A-GI

2
Important Safety Instruction
Read all instructions before using this tool.All operators must be fully trained in its use and aware of safety rules.
1. Maintenance
● Oil 3cc lubricant (SAE #10 or equivalence) through air inlet before connecting the product to the air. Run the tool 15
seconds to allow air circulating the oil and well lubricate the cylinder. This will ensure top performance and maximize
durability of tool.
● Oil 3cc lubricant through air inlet after use and run the tool 5 seconds before storage.
● Clear & dry air allows the product perform at its best and extends the product life.AFilter/ Regulator/Lubricator set is
highly recommended.
● If the tool is in unusual condition, shut it off and disconnect its air hose immediately. Put a warning sign on the product
until it gets repaired.
● Product repairing needs professional training and tool. Do not attempt to disassemble the product or it might be
damaged.
2. User
● The user must be well trained and physically able to operate the product and aware of safety regulation.
● Use personal safety equipment suchas goggle, earmuffs, mask & apron.
● Maintain a balanced body position and secure distance. Do not wear jewelry or loose clothing. Helmet is required if you
wear long hair.
3. CompressedAir
● Do not operate the product with excessair pressure; standard air pressure is 90 psi (6.2 bar or 6.3kg/cm2).
● Always shut off air supply, drain hose of air pressure and disconnect product from air supply before changing
accessories, making repairs or when the tool is not in use.
● Never direct air or product at yourself or anyone else.
● Whipping hose can be extremely dangerous and causes serious injury.Always check for damaged or loose hoses and
fittings.
4. Product
● Do not adapt the product for other purpose;it might harm the product and the user.
● Do not adapt or remove the switch, level or any other component of the product; it might result in malfunctioning and
harm the user.
● Do not use quick connect coupling on the product directly; use it only on the hose end.
● The product is not insulator; keep away from electricity.
5. Accessories
● Please use proper accessories, improper or unqualified accessories may damage the product, deteriorate performance
and do harm to user.
● When replacing the accessories, use the tool attached with the product. Improper tool or incorrect ways of handling the
tool (such as strike) may damage it.
6. Workplace
● Slip, trip & fall are major causes of serious injury ordeath; be aware of excess hose left on the walking or working
surface.
● Workpiece must be fixed firmly; always keep no miscellaneous objects that could interfere with the operation.

3
1
3
8
4
Top View 6
5
7
6
2
CONTROLS & CONNECTIONS
BEFORE OPERATION
Check the followings first:
1. Make sure the workplace is suitable to perform cutting work.
2. Verify if the capacity of air compressor could provide sufficient airflow rate for the tool.
3. Drain the water in compressor tank; fill the lubricator with oil (SAE#10 or equivalence) and make sure no rust or
problem found in the compressor.
4. Check and adjust the operating pressure of compressed air; the best work pressure is 90 psi (6.2 bar or 6.3kg/cm2);
excess air pressure may result in over-speed hazard.
No Description
1 Fix Screw
2 Trigger
3 Trigger Lock
4 Air Inlet
5 Adjust Screw
6 Butterfly Screw
7 Water Valve Knob
8 Water Inlet

4
Preparing Connections:
1. Workplace for operating cutting saw must comply with related safety & health regulation.
2. Connect tool to the air hose, water hose and air exhausting hose as the following steps:
(1) Connect water hose to water inlet: dip the hose end (about 3 cm long) in 95-100oC hot water for 10 seconds to soften
the hose end; this could facilitate the hose to be easier connected to the water inlet. Be careful not to scald by the hot
water.
(2) Make sure the air hose have been properly connected to air inlet of tool.
3. Connect air hose to air inlet:
(1) Remove any dust or particle found in the air hose and adapters to prevent from feeding particlesinto the tool and result
in possible damage.
(2) Verify if the adapters are firmly secured on the hose; connect the hose between air compressor and tool.
GETTING START
Prepare the First Cutting:
WARNNING
● To prevent from any possible injury to the user or damage the workpiece, always keep the cutting blade
away from workpiece before opening the trigger.
● Make sure the operators keep in a safety distance from the cutting blade before feeding the air to the
tool.
WARNNING
● Always disconnect the air hose adapter before changing the cutting blade, repairing the tool or when the
tool is not in use.
● Use personal safety equipment such as goggle, earmuffs, mask & apron in work.
● Choose proper cutting blade for different material of the workpiece.
● Never use a cutting blade marked with a speed lower than rating speed of tool
● Never use a broken or damaged cutting blade.
● If the tool drops by accident, check and verify carefully to make sure the tool works normally before
proceeding your work
WARNING Make sure the following procedures have been complied with respective
instruction before operation

5
6
Top View 6
5
97
96
95
100 99
Base
Blade
43
43 Blade
A aerial view for base
A. Install Cutting Blade
1. Stop the nut (95) with main shaft wrench (99)
2. UseAllen wrench (100) to loosen fix screw (97) clockwise, then remove spring washer (96) and nut (95).
3. Take the cutting blade away from the arbor and install a new blade.
4. Put back nut (95), spring washer (96) and fasten fix screw (97) counter-clockwise.
5. After installation, turning blade by hand to ensure blade and (36th) Water Exit have been installed properly and
matching.
B. Adjust Cutting Depth
1. Loose the butterfly nut (6) to set the blade to the required cutting depth and fasten the butterfly nut
2. UseAllen wrench (100) to set the adjust screw (5) positioned on bottom plate to prevent butterfly nut (6) from loosing
during long period of operation
C. Feed Water
Connect water hose to water inlet (8) and adjust the water valve knob (7) to feed water to the cutting blade.
8
7

6
1
3
8
4
2
D. Feed Compressed Air
1. Check and verify if the fix screw (1) is tightly fastened.
2. Connect air hose to air inlet (4)
PRECAUTION
Prior to cutting, trial run the tool with free load for few seconds to visually check if cutting blade is fixed
properly and the tool is running smoothly. Stop the tool immediately if any abnormal sound or vibration is
found. Re-check the installation of cutting blade or consult with distributor for further assistance.
3. Press trigger (2) to check if the tool start running; keep your hand away from the cutting blade to prevent from injury.
4. To run tool continuously, first hold trigger (2) and trigger lock (3), second release trigger; then the tool can now work
continuously; it eases finger off the long pressing fatigue.
5. Press trigger (2) to release trigger lock (3) when you need to return normal operation.

SUMAKE PNEUMATIC TOOLS
4" Wet Air Cutting Saw
ST-77481
SUMAKE INDUSTRIAL CO., LTD
4F,NO.351,Yangguang St.,Neihu District TAIPEI, TAIWAN, ZIP:114-91
Specification:
Free Speed 7,000 r/min
Disc Size 4” (100 mm)
Length 13” (330 mm)
Air Consumption 22 CFM (623 L/min)
Air Inlet (PT) 1/4” (6.35 mm)
Air Hose (I.D.) 1/4” (6.35 mm)
Air Pressure 90 psi (6.3 bar)
Net Weight 6.42 lbs (2.92 kg)
Noise and Vibration:
Vibration
EN ISO 28927-4 Noise
EN ISO 15744 Remark
Sound Pressure Level
No load: 85 dB(A)
No Load:
< 2.5 m/s²Sound power level
No load: 96 dB(A)
Uncertainty
K= 1.5 m/s²Uncertainty
K= 3dB
Please always
wear ear
protector at
environment
noise level > 80
dB(A) due to
risk of impaired
hearing!
ST-77481-S-1503B-GIF

ECDECLARATION OF CONFORMITY
We: SUMAKE INDUSTRIAL CO., LTD.
4F, No. 351, Yangguang St., Neihu District, Taipei City, Taiwan
declare in sole responsibility that the equipment
Equipment：4" WET AIR CUTTING SAW
Model/ Serial No.：ST-77481
to which this declaration applies, complies with these normative documents:
Machinery Directive: 2006/42/EC
and conforms to the following EN standard,
EN ISO 12100: 2010
EN ISO 11148-7:2012
Name and Signature/Position Date and Place
2013/6/28
MikeSu–ManagingDirector Taipei, Taiwan
ST-77481-D-1503B-GIF

ST-77481
4" WET AIR CUTTING SAW (WITHOUT SAW BLADE)
ST-77481-P-1012A-GI

ST-77481
4" WET AIR CUTTING SAW (WITHOUT SAW BLADE)
PARTS LIST
No. Parts No. Descri
p
tion Q't
y
No. Parts No. Descri
p
tion Q't
y
1 77481-01 Bod
y
1 55 77481-55 Tri
gg
er 1
2 77481-02 Front Plate 1 57 77481-57 Pin 1
3 77481-03 Ball Bearin
g
2 58 77481-58 Pin 1
4 77481-04 Ball Bearin
g
1 59 77481-59 O-Rin
g
1
5 77481-05 Rotor 1 60 77481-60 S
p
rin
g
1
6 77481-06 C
y
linder 1 61 77481-61
A
ir Inlet Screw 1
7 77481-07 S
p
rin
g
Pin 1 62 77481-62 Water Valve Seat 1
8 77481-08 Blade 4 63 77481-63 Bushin
g
2
9 77481-09 Rear Plate 1 64 77481-64 Ball Valve 1
10 77481-10 Pinion Gear 1 65 77481-65 Co
pp
er Bushin
g
1
11 77481-11 Rubber Ca
p
1 66 77481-66 S
p
rin
g
1
12 77481-12 O-Rin
g
1 67 77481-67 Water Valve Joint 1
13 77481-13 Lock Rin
g
1 68 77481-68 Shaft 1
14 77481-14 S
p
acer 1 69 77481-69 Screw 1
15 77481-15 Main Shaft 1 70 77481-70 S
p
rin
g
Pin 1
16 77481-16 Bearin
g
1 71 77481-71 Water Valve 1
17 77481-17 Ke
y
1 72 77481-72 Screw 1
18 77481-18 Bevel Gear 1 73 77481-73
A
llen Screw 3
19 77481-19 Wave Washer 1 74 77481-74 Joint Washer 2~3
20 77481-20 Retainin
g
Rin
g
1 75 77481-75 Quick Joint
,
L-t
yp
e1
21 77481-21 Ball Bearin
g
1 76 77481-76 Screw 4
22 77481-22 Ke
y
1 77 77481-77
A
n
g
le Settin
g
Rin
g
1
23 77481-23 S
p
iral Gear 1 78 77481-78 Fix Plate 1
24 77481-24 Retainin
g
Rin
g
1 79 77481-79 Cou
p
lin
g
Nut 1
25 77481-25 Gear Box 1 80 77481-80
A
llen Screw 3
26 77481-26
A
llen Screw 6 81 77481-81 Quick Joint 1
27 77481-27 S
p
rin
g
1 82 77481-82 Exhaust Cover 1
28 77481-28 Flat Washer 1 83 77481-83 Self Ta
pp
in
g
Screw 2
29 77481-29
A
llen Screw 1 84 77481-84 Screw 1
30 77481-30 Gear Shaft 1 85 77481-85 Ca
p
1
31 77481-31 Ball Bearin
g
1 86 77481-86 Joint Piece 1
32 77481-32 Oil Seal 1 87 77481-87 Base 1
33 77481-33 Gear Seat 1 87a 77481-87a Base 1
34 77481-34 Wave Washer 1 87-1 77481-87-1 Su
pp
ort Frame 1
35 77481-35 Retainin
g
Rin
g
1 87-2 77481-87-2
A
n
g
le Index 1
36 77481-36 Ke
y
1 87-3 77481-87-3 Screw 5
37 77481-37 S
p
acer 1 87-4 77481-87-4 Nut 5
38 77481-38 S
p
iral Gear 1 88 77481-88
A
llen Screw 1
39 77481-39 Retainin
g
Rin
g
1 89 77481-89 Nut 1
40 77481-40 Ball Bearin
g
1 90 77481-90 Flat Washer 1
41 77481-41 Gasket 1 91 77481-91 Butterfl
y
Nut 1
42-1 77481-42-1 Disc Guard 1 92 77481-92 Water Pi
p
e1
42-2 77481-42-2 Shroud 1 93 77481-93
A
ir Inlet Pi
p
e1
43 77481-43 Water Exit 1 77481-94A Disc Receiver
(
20mm
)
1
44 77481-44 Water Exit Nut 1 77481-94B Disc Receiver
(
22mm
)
1
45 77481-45 Quick Joint
,
L-t
yp
e 2 95 77481-95 Disc Nut 1
46 77481-46
A
llen Screw 3 96 77481-96 S
p
rin
g
Washer 1
47 77481-47
A
llen Screw 2 97 77481-97
A
llen Screw 1
48 77481-48 Handle 1 98 77481-98
A
ir Joint 1
49 77481-49 S
p
rin
g
Pin 1 99 77481-99 Bushin
g
1
50 77481-50 S
p
rin
g
1 100 77481-100 Sto
pp
er 1
51 77481-51 Push Button 1 101 77481-101 Grease Hole 1
52 77481-52 Fix Nut 1 102 77481-102 Sto
p
S
p
anner 1
53 77481-53 Tri
gg
er Lock 1 103 77481-103
A
llen Wrench 1
54 77481-54 S
p
rin
g
Pin 2 ST-77481-P-1012A-GI
94