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3.
Connect the flexible shaft
2
1. Insert pin in retention hole.
2. Slightly withdraw threaded coupling B1 from casing coupler B2.
3. Insert second pin through transverse hole in threaded coupling
B1 and
4. Fasten tightly onto the motor shaft A5.
5. Remove pins.
6. Insert casing coupler B2 completely into Hole A6.
7. Depress spring-loaded pin B3 and completely insert casing
coupler B2.
8. Spring-loaded pin B3 must click audibly into place in the retenti-
on hole. Ensure that spring-loaded pin B3 has locked firmly into
place. If necessary, move/rotate casing coupler B2 until spring-
loaded pin B3 clicks into place.
3.
Connect toolholders
3
(accessory) See Fig. C
1. Insert casing coupler B8 into tool connection.
2. Depress spring-loaded pin B7 and completely insert casing
coupler B8.
3. Spring-loaded pin B7 must click audibly into place in retention
hole C1. Ensure that spring-loaded pin B7 has locked firmly into
place. If necessary, move/rotate casing coupler B8 until spring-
loaded pin B7 clicks into place.
Note: Toolholders WI7, WI7 with 45° and WIG7 can be rotated
on the casing coupler for easier handling.
3.
Operation conditions and instructions for Rotoset 25-R
4
• This tool is equipped with an electronic variable speed
tachometer selector and an overload cut-out switch, which
operates as follows:
1. Soft start
2. With increased work pressure more current is drawn , which
virtually holds speed at a constant RPM.
3. If the motor is overloaded, the electronic cuts off the power. In
this event switch at once to OFF position, restart right away to
assure cooling effect in no load mode. Repeated automatic cut
off indicates, tool is being overloaded.
Note: Never use Rotoset 25R in conjunction with another speed
control device (foot pedal or table mount) Otherwise built-in elec-
tronic variable speed control can no longer function as intented.
3.
Operation conditions and instructions for Rotoset 28
5
Operating without a speed control
Attention: Only use tools / abrasivs which can be operated at max.
operating speed of the machine.
• This machine is equipped with overload protection switch and
operates as follows:
1. Machine runs at max. operating speed.
2. With increased work pressure more current is drawn.
3. If the motor is overloaded, the protection switch cuts off the
power. In this event switch at once to OFF position, restart right
away to assure cooling effect in no load mode. Repeated auto-
matic cut off indicates, tool is being overloaded.
Operating with a speed control (foot pedal or table mount)
If Rotoset 28 is used in conjunction with a individual speed control
unit, please refer to the respective operating manual.
4.
Accessories
0
Toolholder maintenance: General
• See respective spare parts list for wear parts.
• Clean off grinding dust daily.
• Do not immerse in liquid.
• Bearings are greased for life.
• Change gear grease every 12 months. (Your SUHNER Service
Centre can perform this work quickly and efficiently.)
Change of tools / abrasives: General
• Unplug power supply before each tool change.
• Clean clamp fitting before mounting.
• Ensure flawless runout and only use low-vibration tools. It is
to the motor See Figs. A + B
essential that you take note of the permissible speed in this
context.
4.
FH 7 Straight toolholder
1
Tool connection
Type:
Collets up to (see catalogue)
Weight
Permissible operating speed up to 25' 000 RPM
For flexible shaftType :
Machine elements
1 Wrench 14 mm
2 Wrench 18 mm
Suitable Tools
6 Burs, specialty abrasives, materials conditioning products
7 Mounted points, Attention: always observe mounting
instructions.
Tool change
• Hold spindle 3 with wrench 1, release or tighten clamping
nut 5 with wrench 2.
4.
WI 7 with 45° toolholder
2
Gear transmission ratio approx.
Tool connection
Collets
Weight
Permissible operating speed up to 1 7 '100 RPM
For flexible shaft
Machine elements
1 Collet
2 Wrench 11 mm
Suitable Tools
General: If possible always mount shank in collet 1 until it bottoms
out.
5 Burs, specialty abrasives, materials conditioning products
6 Mounted points
Tool change
• Hold spindle 4 tight with wrench 3.
• Loosen or tighten collet 1 with wrench 2.
4.
WI 7 Right angle toolholder
3
Gear transmission ratio approx.
Tool connection
Collets
Weight
Permissible operating speed up to 1 7,100 r pm
For flexible shaft
Machine elements
1 Right angle gear head
2 Spindle
3 Safety guard
4 Washer
5 Grinding / cutting wheels
6 Clamping bolt
7 Allen wrench 5 mm
Suitable Tools
General: If possible always mount shank in collet 11 until it bot-
toms out.
10 D isc Pd holders up to 3" dia. (ø75 mm)
9 Burs, specialty abrasives, materials conditioning products
8 Mounted points, Attention: always observe mounting instruc-
tions.
5 Reinforced Grinding/Cutting wheels - with 10 mm bore up
to 3" x 1/4"
Tool change
• Hold spindle 2 tight with wrench 13.
• Loosen or tighten collet 11 with wrench 12.
• Loosen or tighten clamping bolt 6 with allen wrench 7.
See Fig. D
G22 = ø 22 mm
ø 8 mm
0.30 kg
NA 7 x 2000 DIN 10 / G22
3 Spindle
5 Clamping nut
4 Collet
See Fig. E
i = 1:1 (1,3:1)
Type:
G22 = ø 22 mm
up to
ø 8 mm see catalogue
0.55 kg
Type:
NA 7 DIN 10 / G22
3 Wrench 17 mm
4 Spindle
See Fig. F
i = 1:1 (1,3:1)
Type:
G22 = ø 22 mm
up to
ø 8 mm see catalogue
0.55 kg
Type:
NA 7 DIN 10 / G22
8 Mounted points
9 Burs, specialty abrasives
10 Disc Pd holders
11 Collet
12 Wrench 11 mm
13 Wrench 17 mm
5
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