ECHNICAL INFORMATION
Product
T
9077, 9077S, 9077SL / 9079 ,9079S
For Models
Description 180mm (7'') / 230mm (9'') Disc Grinders
B
CONCEPTION AND MAIN APPLICATIONS
The above models are the products with high durability
for stone work in professional use.
The benefits are
1. Coil spring on gear sectio for deadening the shock by accidental wheel lock.
2. Enable to change the handle's angle without any tools for employing as
A
a cutting machine.
3. Trouble free new soft starter.
Mod.9077S, 9079S : with soft start feature
Mod.9077, 9079 : without soft start feature A:200mm(7-7/8") for 9077, 9077S, 9077SL
Mod.9077SL : Low speed and high torque version of Mod.9077S A:250mm(9-7/8") for 9079, 9079S,
B:43mm(1-11/16") for 9077, 9077S, 9077SL
B:68mm(2-11/16") for 9079, 9079S,
Specifications
Current(A) Cycle(Hz)
Model No. Voltage (V)
Continuous Rating(W)
Max. output(W)
Input
Output
15 1650 800 2600
110
9077 1100
*110 2000 2600
19
9077S
15
50/60 800 2600
120
1650
9079
1100 3300
9.6 2000
220
9079S
9.2 1100 3300
230 2000
240 8.8 1100 3300
2000
15 1430
100 600 2600
9077SL
15 1650
120 50/60 800 2600
200 7.5 1430 2600
600
*110 : Great Britain
Motor Series commutator motor (S94-50 load)
8100 R/min.
9077 (for Mexico)
No Load Speed
7600 R/min.
9077, 9077S
9079, 9079S, 9077SL 6000 R/min.
Inner diameter Thickness
Outer diameter
Depressed
180 mm
22.23 mm 6 mm
9077,9077S,9077SL
center wheel
7" 7/8" 1/4"
230 mm
22.23 mm 6 mm
9079, 9079S
9" 7/8" 1/4"
Standard equipment
For Mod.9077, 907S, 9079, 9079S : Lock nut wrench35
For Mod.9077SL : Lock Nut Wrench 35, Depressed Center Wheel 180-36P
Optional accesories
9077, 907S,
Descr[tions 9079, 9079S 9077SL
Inner flange 47 set (Super flange) Yes Yes Yes
Yes Yes
Depressed center wheel 180-24P
Depressed center wheel 180-36P Yes Yes
Yes
Depressed center wheel 230-24P
Depressed center wheel 230-36P Yes
Inner flange 78 and Outer falnge 78 for cut off wheel
Yes Yes
Wire cup brush 110 set Yes Yes Yes
Loop handle Yes Yes Yes
Dust collecting wheel guard Yes Yes Yes
Sanding disc 180 Yes
Diamond wheel 180 and 230
Yes (180mm) Yes (230mm)
Yes (180mm)
484mm(19")
76mm (3")
146mm (5-3/4")
Repairing
<1> Replacement of armature and spiral bevel gear 14 (11)
(1) Remove grinding wheel and wheel cover.
(2) Remove brush holder cap and carbon brushes.
(3) Remove hex socket head bolt M5x40 from gear housing. Then gear housing can be removed
together with armature, from motor housing.
(4) Remove hex socket head bolt M5x16 from gear housing. Then bearing box can be removed.
(5) Lock armature and take off hex nut M8 with spanner from armature shaft.
(6) Pull out armature from gear housing.
Hex socket head bolt M5x16
Bearing Box
Spiral bevel gear 11 for 9079, 9079S and 0977SL
Hex nut M8
Spiral bevel gear 14 for 9077, 9077S
Baffele plate
Flat washer 12
Armature
Gear Housing
Hex socket head bolt M5x40
Carbon brush
Brush holder cap
Motor housing
Dismounting of lock sleeve and lock springs
(7) Remove lock sleeve from spiral bevel gear 53 by turning in the direction of .
Spiral bevel gear 53
.
Lock sleeve
(8) Remove lock spring 25 from spriral bevel gear 53 by turning in the direction of .
And then lock sring 17 by turning in the direction of .
Spiral bevel gear 53
Lock sring 17
lock spring 25
Mounting of lock sleeve and lock springs (Process after replacement of spiral bevel gear 53)
(9) Apply grease inside of lock spring 17, and outside of lock spring 25.
Apply grease
(SG No.0) by 1g.
(10) Mount lock spring 17 by turning in the direction of on the spiral bevel gear 53.
And then, lock spring 25 by turning in the direction of on the spiral gear 53.
(11) Mount lock sleeve by turning in the direction of , on the spiral bvel gear 53 on which lock spring 17
and 25 have been mounted in the step (10).
(12) Push spiral bevel gear 53 and lock sleeve on the spindle by turning them in the direction of
as far as lock sleeve will interlock with flat section of spindle. And then, put the repairing jig No.1R028
on the spiral bevel gear 53. Press the spiral bevel gear 53 with arbor press.
Press with arbor press.
Spiral bevel gear 53
11mm - 12mm
Lock sleeve
Over 18mm
Apply grease
in height
(SG No.0) by 1g.
Spindle
Repairing jig
No.1R028
15mm - 16mm
Hold the flat section on Repairing jig
the spindle with vise. No.1R035
< 2 > Replacement of spiral bevel gear 53
< 2 > Replacement of spiral bevel gear 53
Not only in case of damage on gear itself but also in case of damage on ball bearing,
Not only in case of damage on gear itself but also in case of damage on ball bearing,
spiral bevel gear 53 has to be replaced with fresh one.
spiral bevel gear 53 has to be replaced with fresh one.
(1) Remove grinding wheel and wheel cover.
(2) Remove hex socket head bolt M5x16 from gear housing. Then, spiral bevel gear 53 can be removed
together with bearing box, from gear housing.
(3) Take off sleve 10.
(4) Take off ring spring 9 with pawl for retaining ring.
(The removed ring spring 9 has to be corrected with plyer for fitting inside the sleeve 10 again.)
(5) Take off flat washer 10.
Sleeve 10
Ring spring 9
Flat washer 10
Spiral bevel gear 53
In the mounted situation, ring spring 9
has to be set inside sleeve 10.
Bearing box
Sleeve 10 and flat washer 10 have to be
set tight each other as per the above
illustration.
(6) Take off spindle complete with arbor press.
Hex socket head bolt M5x16
Arbor press
Set the bearing box with spiral bevel gear 53
and spindle on the widest U-form (width: 60mm).
< 3 > Grease
Apply the grease SG No.0 in the gear housing by 50 g.
Remarks
The wheel cover of 5/8" can be used with this machine, if the flanged diamond wheel contacts
the original wheel cover.
The parts Nos are as follows.
No.163425-0 for 180mm (7") wheel
No.163424-2 for 230mm (9") wheel
Circuit diagram
Model 9077 and 9079, without soft starter
In some countries,
Noise suppressor is not
used.
Black
1
2
Noise
suppressor
1 Power
2
supply cord
Band
Switch
Motor housing
Lead wire from field has to be
guided through the hook.
Lead wires from field has to be set in the lead wire holders as per the
following illustration.
Noise suppressor
Lead wire from field has to be bound with a band
at the above illustrated positoin.
Circuit diagram
Model 9077S, 9077SL and 9079S, with soft starter
In some countries,
Noise suppressor is not
used.
Black
2 2
2
Switch
5
1 Power
1
supply cord
Band
White
Orange or Red
White
Soft starter Noise
circuit suppressor
Motor housing
Lead wire from field has to be
guided through the hook.
Lead wires from field and the same to soft starter circuit
have to be set in the lead wire holders as per the
following illustration.
Soft starter circuit
The lead wire to noise suppressor has to be
guided through the space between partition
and the rib.
Noise suppressor
(In some countries,
Lead wire from field has to be bound with a band
noise suppressor is not
at the above illustrated positoin.
used.)
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