Fein MSfo 870d User manual

(
MSio 870
To be handed to the workshop!
Operating instructions
for the High Frequency Angle Grinders
Type MSfo
870d, c, b
and MSfo
870dK, cK, bK (42 Volts)
1. Technical Data
Type of current: 3 ph. A. C. 200/300 Cycles
Fre-
Grinding wheel Admissib le Thread
Speed Input Output Net weight I I I I pe ripheral
qu~~cy R.P.M. Watts Watts lbs. I kg in~~:~m in~F~m in. ~;; I Type ft ./ ssp ~ e~/s spi~~le
1 ------------+------+-- ----~-----r ----~----+----+ ----T- ---T ---- ~ -----r----+- ----+------- ~-------- ~~ ---- ---
Type
~~:: :~~:K I 300 I 8600 I 3300 I 2420 I !~.
6
~ ~:~ I 7 1 178 1 3 /s 110 I 7 /s 122 I :~i~!~~ I 260 I 80 I M 14
-- ---- ------ T----- ~ -- - ---- : ------T-----~--~---- ~------ -- :
I 200 I 8600 I 2200 11620 I !~.
6
~ ~:~ I 7 1 178 1 3fs I 10 I 7/s 122 I :~i~!~~ I 260 I 80 I M 14
MSfo B70d
MSfo B70dK
MSfo
B70c
I 300 I 6600 I 3300 I 2420 11
1
:61 ~:~ I 9 123 0 I 3fs I 10 I 7/s 122 I i~i~!~~ I 260 I 80 I M 14
MSfo B70cK
MSfo B70c I 200 I 6500 I 2200
11620 I !~.
6
~ ~:~ I 9 1230 I 3/s I 10 I 7 /s 122 I :~i~!~~ I 260 I 80 I M 14
MSio B70cK
MSfo
870b
MSfo 870bK
I 200 I 4400 I 2200 11620 I !~.
6
~ ~ : ~ 18
5/a 1220 I -- I -- I 9
/,6 114,2 I elastic di sc I 260 I 80 I M 14
~--------~----~--~----~----~--~--~--~--~----~--~--~
2. Construction
The High Frequency Grinder MSfo 870 is a high capacity tool
with earth cable according to the VDE regulations 0740.
For safety reasons the machine is provided with an earth wire,
which is yellow and green. At one side it is connected to the
metal housing of the tool and at the other side it must be con-
nected to the protecting contact of the plug . Machines for
42 Volts (Class III) have no earthing conductor.
Gears are lapped for accurate meshing; both parts to be supplied
as pairs only. Gears and bearings are protected against dust and
loss of grease.
Part of the cooling air is led by conducts through the gearing in
the gear head for additional cooling.
3. Connection and Operation
First check that details on rating plate correspond to those of
the high frequency supply. To avoid overloading of the grinder
we recommend the installation of a safety switch.
Switch must be in the "Off" position when connecting.
Check that the tool rotates in direction marked by arrow on the
machine, otherwise the tool may become loos e. To check rota tion
switch on tool briefly . If it does not follow arrow, reverse by
changing over two lead s in the plug.
BE 315 e EW 2. 73 Printed in Germany
Please see instruction BE 22 for the high fr eq uency installation .
To avoid overloading of the gri nder we recommend the installa-
tion of a safety switch (see also separate inst ruction B 22).
Do not exceed the dimensions of grinding wheels stipulat ed.
When wo r king with crank wheel hold tool in such a position
that the grinding wheel wo r ks under an angle of 15 - 30 °. For
cutting off stone use our wheel guard with adjus t able support .
4. Maintenance and Lubrication
The ang le grinder require s adequate main te n ance. Before star-
ting any maintenance work pull plug from socke t. To replac e
cable see instru ct ions . of pa ragr aph 5, sectio n 2.
After fitting new cable check con nection of co nductor as well as
of earth wire.
The gearing should be particularly well greased. E ve ry 300
working hours renew gear grease. Use only the prescribed
qualit y FG 9. To prevent mi xture of greases , lubricate the roller
bearings in the gear head also with our special grease FG 9.
When checki ng or ren ewing t he grease, take out sc r ews (48) on
bearing cap (3 5) . Take of f complete cap with drive s haft (42) and
remove old grease.

32
42 -~
--- --- --
45 - __
43 - -_
44 ----
46 - -----
\
107
67 68 69 70 80 81 92 93 96 ~
\
\
\
\
95
I
:
\
102 m
I
I
u)~ l~l.)i ,,l, '11'?&;;;, -;;-~nl ,, \ ',
,___ I : I I \ \
~
38 39
( ,- -- ( ~
'
------------ f-- -----
1
i ~ :
L: ~ ~ - - ~ ~ -\
\
~- 708
78
I
i I
) j
79
I\ \
71 72 73 77 ~ 101 100
I
I
'
97
MSfo 870 d, c, b, 200Hz, 111-265 V
MSfo 870 d, c, 300Hz, 150-265 V

( ·
--- - - -- -- -- -- ------------------ -
91
I
I
104 91a !!Ba 102 103
!
Dismantling the machines of these types:
1. Remove grinding wheel and safety guard.
a
a
a
2. Unscrew fillister screw (101), remove control lever (100) and a
felt ring (99).
3.
Unscrew screws (102) and (98). Push away the handle (90).
Clamp off the cable (93) from the switch (97) . Remove the
cable clamping bridge (95) after unscrewing the screws (96).
Tak e off handle with ca bl e.
4. Unscrew screws (98 a), take off switch (97) with angle (94).
After unscrewing the screws (73), take off the fan housing
(69).
Then see § 5 (4-8).
In these machines:
MSfo 870 dK, cK, bK, 200 Hz, 42 V
MSfo 870 dK, cK, 300 Hz, 42 V
and MSfo 870 d, c, 300Hz, 43-71 V
the following parts are different:
Part Order
>.
Description
.....
No Reference
a
73
SR 33-M6x!OO 3
cylindrical scre ws
90, 91, GH 4-89-6 1 handle assembled with fan housing
94-103
and switch 60 A for MSfo 870 dK,
cK , bK, 200Hz, 42 V and for
MSfo 870 dK, cK , 300Hz, 42 V
90-91a
GH 4-89-2 1
handle assembled with fan housing
94-104 and switch 60 A for MSfo 870 d, c,
300Hz, 43-71 V
90-91
GH4-89 -5 1
handl e with fan housing for
MSfo 870 dK, cK, bK , 200 Hz, 42 V
and for MSfo 870 dK, cK, 300Hz,
42V
90-91a
GH 4-89-1 1
handle with fan housing
for MSfo 870 d, c, 300H z, 43-71 V
91a
MZ 37-29 1 eart
hing rivet (not by 42 V)
92 .
JS 13-95 1 cable protecting sleeve
93 EZ 6-60 1 ca
ble for 200/300 Hz, 42 V
93 EZ 6-158 1 ca
ble for 300H z, 43-71 V
94
BF 29-135-1 1
angle
95
PT 31 - 31
2 cable clamping bridge
96 SR 2-M5x18 2 cy
lindrical screws with slot
97 EZ 1-82 1 sw i tch 60 A
98
SR6-M4x15
2 countersunk screw with slot
98a
SR 2-M4x25 2 cy
lindrical screw
99
DJ 1-79 1 fe
lt gashet
100
SA 5-39 1
control lever
101
SR3 - M6 x10 1 fillister scr ew with sl ot
102 SR33-M5x80 4 so c ket head cap screw
103
PT 5d-M5
4
securing plate
104
SR3-M5x8
1
earthing screw (not by 42 V)

(
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
Component Parts
Part Order
>-
Description
No.
Reference
a
1
MK3-114-1
1) 1
motor housing, assembled
for MSfo 870 d, c, b, 200Hz ,
111-265 v
for MSfo 870 d, c, 300Hz ,
150-265 v
1
MK3-114-2
1) 1
motor housing, assembled
for MSfo 870 d, c, 300Hz,
111-149 v
1
MK 3-114-31) 1
motor housing, assembled
for MSfo 870 dK, cK, bK, 200 Hz,
42 v
for MSfo 870 dK, cK, 300Hz,
42 v
for MSfo 870 d, c, 300Hz,
43-71 v
1
MK 3-114-4
1) 1
motor housing, assembled
for MSfo 870 d, c, b, 200 Hz,
43-110 v
for MSfo 870 d, c, 300 Hz,
72-110 v
2-4
WL 8-30-1 1
rotor, mounted
21-50 GH 6-63 -1
1
gear housing, assembled
for MSfo 870 d, dK/300 Hz
21 -50 GH6-63-2
1
gear housing, assembled
for MSfo 870 d, dK/200 Hz
21-50 GH 6-63-3 1 gear housing, assembled
for MSfo 870 c, cK/300 Hz
MSfo 870 b, bK/200 Hz
21-50 GH6 -63-4 1 gear housing, assembled
for MSfo 870 c, cK/200 Hz
21
GH6-63 1
gear housing
22 LK 16-52 1
ball bearing
23 PT 11-64 1 cove r plate
24
DJ 1-75 1 fe lt ring
25 PT 36-25 1 flange
26
SR 2b-M5x20
3
cylindrical screws
27 RJ 24-29
washer for bevel pinion (as need ed )
28 BF 21-4x4x14 1
fitting ke y
292) ZR 13-88 1
bevel pinion, 25 teeth
MSfo 870 d, dK 300 Hz
292) ZR 13-85 1
bevel pinion, 31 teeth
MSfo 870 d, dK/200 Hz
292) ZR 13-87 1 bevel pinion, 18 teeth
MSfo 870 c, cK/300 Hz; b, bK /200 Hz
292) ZR 13-86 1 bevel pinion, 25 teeth
MSfo 870 c, cK/200 Hz
303) BU 1-240 1
sleeve
31
PT 1-M8 1
disc
32 MR 19-1 1
nut
33 LK 6-24 1
ball bearing
34 RJ 16-20 1
securing ring
35 PT 19-55 1
bearing plate
36 I PT 11-66 1
cover plate
37
DJ 1-49 1
felt ring
38
RJ 27a-40x20,2 1
Nilos ring
39 LK 16-25 1
ball bearing
40 PT 16-58 1
flang e
41 SR 2b-M4x12
3
cylindrical screws
42 WB 6-102 1
driving s haft
43 BF 21-5x5x16 1
fitting key
442) ZR 14-133 1 b
eve l gear, 52 teeth
MSfo 870 d, dK/300 Hz
442) ZR 14-130 1 bevel gear, 43 teeth
MSfo 870 d, dK/200 Hz
442)
ZR 14-132 1
bev el gear, 49 teeth
MSfo 870 c, cK/300 Hz; b, bK/200 Hz
442) ZR 14-131 1
bevel gear, 46 teeth
MSfo 870 c, cK/200 Hz
45 RJ 29a
-1 6x0,6 1
Seeger circlip
46
RJ 24-68
washer for be aring plate (as n ee ded)
1)
When ordering, please state type , voltage and frequency
2)
Parts 29 and 44 are lapped together and are supplied only by
pairs
b
b
b
a
a
a
b
b
b
Part Order
>-
Description
.,_,
No . Reference
a
47 DJ 12-2 1
ri nq
48 SR33-M5x20 4
hexagon socket sc rew
49 DJ 11-5x9 4
sealing ring
50 JS 20-20 1
plastic plug
61 GH 7-61 1
bearing housing
62 BU 1-237 1 cover
63 LK 16-38 1
ball bearing
64 PT 8-207 1
disc
64a
RJ 27i-12x28,1 1
Nilos ring
65 BF 21-3x3x8 1
fitting key
66 FL 1-116 1
fa n
67
PT 1-M8 1 disc
68
MR 19-1 1
hexagon socket screw
69
GH7-60
1
fa n housing
70
PT 27-49 1 cover
71
SR 33-M6xll0 3
socke t head cap screw
72
PT5d-M6
3
securing plate
73 SR3-M4x8
1
earthing screw
74
SR33-M5x25
4
soc ke t head cap screw
75
PT 5d-M5
4
securing plat e
76
SR33-M5x35
4
soc ke t head cap screw
77
PT 5d -M5 4 securing plate
80
JS 8-56 1
insu lating plate
81
JS 13-122 1 insu lating hose
82 DJ 5-49 1 packing
92-101 GH 4-67-9 1
handle assembled with switch 16 A
92
GH4 -67 1 han dle
93 EZ 1-64 1
sw itch 16 A
94
PT 31-21 1 cable clamping bridge
95 SR 3-M3,5x15 2 fil
liste r screw
96
SR 2-M3,5x10 2
cylindrical screw
97 DJ 1-52 1
felt ring
98 SA 5-62 1
control lever
99 SR 3-M3x15 1
fillister screw
100 EZ 19-50 1
connection cable
101 DJ 5-42 1
sealing plate
102 EZ 6-153 1
cable for 200Hz, 111-265 V,
300Hz, 150-265 V
103 JS 13-95 1
cable protecting sleeve
Accessories
105 M 10-70-1 1
safety guard assemb le d to
MSfo 870 d, dK ; 200/ 300 Hz
105 M 10-71-1 1
safety guard assembled to
MSfo 870 c, cK; 200/ 300 Hz
106
M8 -65 1 fl ange for grinding wheel inside
4)
107 M8 -52 1
flange for grinding whee l outside
4)
108
MZ 19-32 1 side handl e
Z 7-
SW 17 1
wrench
z 10-10 1
hexago n socket screw wre nch (M 5)
z 10-11 1 hexagon socket screw wrench (M6)
z 13-22 1
peg spanner
MZ 60-3/FG9 1
tube of gear grea se
MZ 60-5/FK5 1 tube of ball b earing g rea se
3)
Not by MSfo 870 d, dK , c, cK/200 Hz
4)
Not by MSfo 870 b, bK

1 16 A
: ide
4)
tside
4)
1 (M5)
1 (M6)
69 85
97 94 97 90 99
73 77 76 86 72 89 92
707 700 98
Dismantling th e machines of these types:
1. Unscrew scr ew (96), take off switch grip (95).
2. Unscrew screws (73, 76), take off h and le (115). Unscrew
screws (101) and take off clamping clips. The cable can be
pulled out after un screwing switch screws and the ear thing
a
b
a
screw (72) through the protecting sleeve (117). a
3. Unscrew 4 screws (70), remove switch plate (85) and fan a
housing (69).
Then see § 5 (4-8).
721 120
In th ese machines :
MSfo 870 d, c, b, 200Hz, 43-110 V
an d MSfo 870 d, c, 300Hz, 72-149 V
the following parts are di fferent:
Part
Order :>.
D esc ription
No Reference
0
69
GH7-70
1 fa n ho using
70
SR 33-M6x110 3
socket head cap screw
71 PT 5d-M6 3 securing plate
72 SR3-M5x8
1 earthing screw
73 PT 5d-M6
3 securing plate
76 SR33-M6x55 2 socket head cap screw
77
SR 33-M6x15 1 socket head cap screw
85-101
PT 33-21-2 1 switch plate, assembled
with switch 25 A
85-91
PT 33-21-1 1 switch plate, assembled
92 EZ 1-54 1
switch 25 A
94
SR3-M4x8
3 fillister screw
95 SA 5-38 1 switch grip
96
SR3-M4x6
1 fillister screw
97 DJ 1-46 1
felt ring
98
PT 31-21 1
clamping clip
99
PT 31-23 1
clamping clip
100
PT 6-M3,5 2
sp ri ng was h er
101 SR3-M3,5x25
2 filli ster screw
115- GH 4-60-3 1 handle, assembled
120
115 GH4-60
1
handle
116 JS 4-76 1
insu lating washer
117
JS 13-52 1
cab le protecting sleeve
118 RJ 7-25 1
ho lding ring
11 9
SR6-M4 x6 2
fillister h ead countersunk screw
120 JS 16-15 1
rubber sleeve
121 EZ 6-183 1
cab le for 200H z, 43-72 V,
300Hz, 72-110 V
121 EZ 6-182 1 I
cable for 200Hz, 73-110 V,
300Hz, 111-149V
I

Do not loose washers (46) when taking off or regreasing the bea-
ring plate. These are essential for correct meshing of the bevel
gears. Failure to replace washers may cause damage to gears.
To avoid overheating and to ensure adequate lubrication at the
same time it is important to pack the gearing with the grades
and quantities listened in the table below.
Type of
Quantity
Order
I Contents
Type
I oz I
grease
oz 1
Reference
g g
For gearings
MSfo 870 d, FG9 3 85 I
MZ 60-3/FG 9 3,2 1 90
dK 200Hz,
MSfo 870 c,
cK 200Hz
MSfo 870 c, FG9 2,6 80 MZ 60-4/FG 9 6 180
cK 300Hz,
MSfo 870 b,
bK 200Hz,
MSfo 870 d,
dK 300Hz
For ball bearings
MSfo 870 d, c, b FK5 MZ 60-5/FK5 0,18 5
MSfo 870 dK, cK, bK
for ball
approx. 'h
bearing,
part 63
of the
MSfo 870 d, c, b
FG9
space
MZ 60-3/FG 9 3,2 90
MSfo 870 dK, cK, bK
for anti-
between
friction inner and
bearing
out er ring
part 33,
22 and 39
Bulk grease supplies are packed in tins.
After every 900 working hours, the machine should be com-
pletely dismantled as described under part 5, and all parts must
be cleaned thoroughly.
Rinse ball bearings in clean solvent, th en pack them with fresh
grease about one third according to the table.
No claims can be entertained for damage due to negligent main-
tenance and inadequate lubrication.
5. Dismantling
Tool should only be taken apart by an expert , working in the
following sequence:
For the types: MSfo 870 d, c, b, 300 Hz, 150-265 V and 200 Hz,
111-256 v.
1. Remove grinding wheel and wheel guard.
2. Unscrew the screws (99) and take off the lever (98). Take off
the screws (76) and push away the handle (92). After clamp-
ing off the cable the switch can be removed .
3. Unscrew the screws (71), pull out the cover (70) and take off
the fan housing (69).
4. Unscrew nut (68) and take away the wing fan (66) with the
disc (67), the fitting key (65) and the disc (64).
5.
Take away the screws (48) and take away the bearing plate
(35) with the input shaft (42) and bevel gear (44).
Pay attention to the washers (46) and ring (47)!
6. After unscrewing screws (74), pull gear housing (21) with
rotor (2) out of the motor housing (1 ). Unscrew hexagon nut
(32) from rotor shaft (2), then remove washer (31), bevel
pinion (29), fitting key (28), washer (27). The rotor (2) can
now be pulled out of the gear housing (21).
7. Unscrew screws (26), take off flange (25); remove cover pla te
(23) and felt ring (24).
8. The internal ring of the needle bearing (from the part (33))
must be taken out of the driving shaft (42), remove the Seeger
circlip (45) take away the bevel gear ( 44) and the fitting key
(43). Unscrew screws (41), remove flange (40) and draw out
driving shaft (42) with ball bearing (39) out of the bearing
plate (35).
Re-assemble in reverse sequence . When refitting pinion and
bearing plate, please, bear in mind that wash e rs (27, 46) are to be
placed in their right places as they are needed for accurate
adjustment of the gearing . When fitting bearing plate check t hat (
bevel gear wheels mesh accurately. For this purpose turn drive
shaft (42) slightly; only then , fasten screws (48) .
I
Type
I
Tube
I
Plate
I
Dismantling
device
MSfo 870 c, 200Hz
zso8-2 zso9-47
zso 11-14-1
300Hz
zso8-2 zso9-48
zso 11-10-1
MSfo 870 d, 200Hz
zso8-2 zso9-46
zso 11- 8-1
300Hz
zso8-2 zso9-49
zso 11-14-1
6. Repair and spare parts
We recommend our FEIN Service Stations to carry out all over-
haul and repair work quickly and expertly.
We deliver special tools to carry out repairs. The base tube
and the two - part dismantling plate are used to take off the
bevel gear (44) and t he dismantling dev i ce to take off the bevel
pinion (29).
When ord e ring spare parts, please quote typ e and se r ial No of
the machine as well as Order Reference of the required pa rt or
send in the damaged part.
We draw your attention to the need to carry out a high voltage
test in accordance with your local regulations (or VDE regu-
lation 0740) before taking a tool into service after any repair
carried out by your own staff.
(