Fein MSho 840-2 User manual

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MSho 840-2
To be handed to the workshop
Operating instructions
for the High Frequency Hand Grinder
Type MSho
840-2 and MSho 840-2 K (42 Volts)
1. Technical Data
Type of current: 3 phase 150, 200, 300 cycles
Collet C/J
Type
Fr e quency Spe ed Input
Cycles I R.
P.M .
Watts
in. mm
150
,,4
6')
I
9000
190
MSho 840-2
'/4 200
6') 12000 250
MSho 840-2K
300
,,4
6')
I
18000 360
1)
On demand with collet 8 mm (approx.
5
/,/ ' )
2. Construction
This grinder is a surface coo led e lectric tool with high over-
lo ad ing resistance and of sturdy construction. The tool offers
the advantage of total enclos ur e, eliminating wear caused by
ingress of grinding dust. The switch is built into the dustproof
plastic handle.
For safety reasons the machine must be earthed (according to
VDE regulations 0100 12. 65 § 5 N and 6 N) using the (green-
yellow) designed earth wire, one end fastened to the metal
cas ing, the other end connected to the earth screw of the plug.
For reasons of safety we draw your att e ntion on our general
operating and installation instructions for High Frequency
Transformers and High Frequency Net (BE 22).
Type MSho 840-2 K (42 Volts) must not be ea rthed.
3. Connection and Operation
Op e rating voltage and frequ e ncy must correspond to th e voltage
a nd frequency marked on the rating plate. Provide ov erload
protection to match the rated current.
Switch must be in the "Off" position when connecting .
Check that tool rotates in direction marked by arrow on the
machine, o therwis e the collet ma y b ecome loos e. On putting
BE 325/e GW 2. 73 Printed in German y
Out-
Max. ¢ of gr indin g wheel for admi ss ibl e
Net
put
p er iph e ral spee d
Weight
30 m/s (99 ftfs)
145 m/s (148 ft/s) I 80 m/s (263f t!s)
HP
in. I
mm
in. I mm in. I mm
Lbs
I
kg
110 2x
3
/4 50x20
2x
3/s
50x10 21/2x3 /s 63x10 4.6 2.1
150 11/2x3 /4
40x20 2x
3/s
50x10 21 /2x
3
/s 63x10 4.6 2.1
220
11/4x3 /4 30x20 2x
3
/s 50x10 21/2x3 /s 63x10
4.6 2.1
tool in to se rvic e, swit ch on briefly onl y to ch eck rotation. If it
do es no t follow arrow, reverse by changing over t wo l eads in
th e plug. The grinder is us ed for grinding out and polishing
dies, cas t ings and press moulds. For the required rotary tools
and for the hard metal milling cutters , which are used for
milling jn hard metal, see our leaflet MSho .
When grinding with th e grinder pay attention to your local
safety regulations .
4. Maintenance and Lubrication
The grinder requires prop er ma intenance . In order to prevent
accidents check cable at reg u lar intervals. To replace cable (9) ,
unscre w screws (17) and (18) and remove h andle top. Clamp
off cable from sw itch (7) and earth screw (1 5 ). Lo os en clamp (11)
a nd draw out cabl e.
After fitting a new cable, check all conductors as well as earth
wire.
Every 900 duty hours the gri nder should be completely dis-
mantl ed as described und er paragraph 5 and all pa rts must be
thoroug hly cleaned. Rinse ball bearings in cl ea n solv e nt a nd

65
~4 1 ~6 ?7
18
13 15 17
" I ~ . . I I I . t: -: ?J ii !II II 11 · --++- lbll ' · 111 - 1111 ·-- · -t----t" I ·I
'Q
R -$-
__ ec=~
62 63
53 a
59
67 60 5
16 14
7 8 6 10
68
43 37 36 45 46 47 35 27 56
55 57 53

-.
Part No
Order
>,
Description
Reference
0
1-4
MK 3-73-1 1) 1
motor housing, assembled
1
MK 3-73 1 motor housing
3
I
state type, 1
stator, assembled with winding
frequency and
voltage
4
SR 11-M 4x8 2 thread pin
5 GH 7-32 1 fan housing
6-8,10·18
GH 4-54-2 1
handle assembled with switch
6, 16-18
GH 4-54-1 1
handle assembled
6 GH 4-54 1 lower handle section
7 EZ 1-43 1
tumbler switch, 3 pin
8
SR 6-M 4x8
2
fillister countersunk screw
9 EZ 6-124 " 1
cable, 5 m (16ft), without plug
10 JS 13-90 1
protecting sleeve
11 PT 31-21 I 1
clamp
12
SR3-M3,5x10
2 fillister screw
13
SA 2-42 1
connecting strap
14 EZ 19-23 1
connecting cable
15 SR
3-M 4x6
2 fillister screw
16
GH 4-53 1
handle top
17 SR
3-M 4x20
2 fillister screw
18
SR3-M 4x25
I :
fillister screw
23-26
WL 8-31-1
rotor, assembled
25 I
RJ 3-19 1 I
balancing ring
26
RJ 3-13 1
balancing ring
27 LK 16-27 1
ball bearing
28 LK 16-11 1 ball bearing
35-48
LA 10-42-1 1 grinding spindle bearing, assembled
35
LA 10-42 1 grinding spindle bearing
37 WB 3-47 1 driving shaft
38
PT 8-20 1 intermediate ring
39
DJ 1-47 1 felt ring
40
PT 11-51 1 cover plate
41
LK 16-43 1
ball bearing
42 FD 5-26 2
flat spring
43
RJ 16-13 1 securing ring
44
BU 14-78 1 sl eeve por protection
1)
When ordering, state type and voltage
2)
Not for MSho 840-2 K
"-·
Component Parts
Part No
Order
>,
Description
Reference
0
45 LK 16-29 1
ball bearing
46 BF 21-2x2x8 1
fitting key
47 A 2-45 1
clutch
48 MZ 10-59 1
collet, 6 mm
48
MZ 10-69 1
collet , 8 mm (on demand)
50
LA 6-194 1
intermediate bearing
51 FL 1-99 1 fan, 150/200
Hz
51 FL 1-109 1
fan, 300Hz
52 BF 22-24 1
fitting key
53
RJ 16-33 1
securing ring
53 a RJ 24-34
washer
54 MR 4-13 1
hexagon nut
55 BU 1-181 1
pipe s leeve
56 SR 6-M 4x6
1 fillister countersunk screw
57 DJ 5-23 1
rubber gushet
58
A 2-45 '1
clutch
59 A 2-46 1
intermediate piece
60 SR 2-M 4x15 4
cylindrical screw
61 PT 5d-M4
4 securing plate
62 SR 2-M3,5x15 4
cylindr ical screw
63 PT 5d-M3,5
4
securing plate
64 SR 2-M 4x25 2
cylindrica l screw
65 PT 5d-M 4 2
securing plate
66 SR 3-M 4x25 2
fillister head screw
67
PT 5d -M 4 2 "
securing ring
682) SR 3-M 4x6
1 fillister head screw
69 BF 21 -2 x2x8
1 fitting key
Parts for MSho 840-2 K (42 Volts)
9 EZ 6-74
~ I
cable 5 m long, without plug
6-8,10-12
GH 4-54-4
handle assembled
16-18 I
with switch
Accessories
I
Z 7-SW 17S
I ~ I
single end spann er
Z
7-SW 12
single end spann er

refill about one third of the space between inner and outer ring
with our ball bearing grease Sst 1.
7. Draw out clutches (47, 58), (suitable dismantling device ZSO
24-4-1), take away fitting keys (46, 69).
No claims can be entertained for damage due to negligent 8. Unscrew sleeve for protection (44), draw driving shaft (37)
mainten~nce and inadequate lubrication. out of outer bearing (35) forwards. Take off securing ri ng
(43), flat spring (42) and ball bearing (41).
5.
Dismantling
The tool should only be taken apart by an expert working in
the following sequence:
1. Remove handle top (16) and clamp off motor cable from
switch (7). Remove connection cable (14).
2.
Unscrew fillister screws (66) and remov e handle (6).
3.
Unscrew fillister screws (64) and remove fan wheel casing (5).
4.
Unscrew fillister screws (62) and remove outer bearing (35).
Remove intermediate piece clutch.
5. Unscrew nut (54). Draw out ventilation fan (5 1) and take off
fitting key (52).
6.
Dismantle intermediate bearing (50) after unscrewing screws
(60) with roto r (23). Do not lose washers (53 a).
Re-assemble in reverse sequence.
P le ase bear in mind that existing washers are to be placed in
the right places. Their loss would lec;.d to damage.
6. Repair and Spare Parts
We recommend our Fein Ser vice Stations to carry out all over-
haul and re pair work quickly and expertly.
When ordering . spare parts, please, quote Order Reference or
send in sample part, stating the type of the machine.
We draw your atten ti on to the need to carry out a high voltage
test in accordance with your local regulations (or VDE regu-
la tion 0740) before taking a tool into service after any repa ir
carr ied out by your own staff.
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