Fein MSfo 880-ld User manual

Operating instructions
for the High Frequency
Angle Grinders
Type MSfo
880-ld, MSfo 880-lc
MSfo 880-1
~ be handed to the workshop!
and MSfo 880-ldK, MSfo 880-lcK {42 Volts)
1. Technical Data
Type of current: 3 ph. A. C. 200/300 Cycles
Frequency Speed
Net weight
Type
Input I
Output
(cycles)
R.l'.M.
I
Watts
HP
lbs kg
MSfo 880-1d } 200 8600 I 2400 2.5 21.8 9.8
MSfo 880-1dK''. 300 8500 3400 3.5 21.8 9
.8
MSfo 880-1c } 200 6500 2400 21.8 9.82.5
MSfo 880-1cK''· 300
6SOO 3400 3 .5
21.8 9.8
, ,. Fo r 200 cycles only
2. Construction
The grinder is provided with a robust surface air cool ed motor design-
ed to withstand substantial overload . The internal parts are protected
aga inst dust by total enclosure. The h an dle moun ted switch is a ls o
enclosed.
Highe st po ss ible w orking safety is a tt ai ned by th e rubber
sheating.
The grinder MSfo 880-1 is an electric tool of class I wi th safe ty
conductor according to VD E reg ul a tion s 0740. For saf ety reasons the
mark ed safety conductor of the supp ly ca ble, connected to the metal
casing
of the mac hin e, mu st be connected to the prot ecting contact of
the plu g. For good in sta ll atio n of h igh frequency we dr aw your
a tt e nti on to general opera tin g a nd in stalla tion instructions No. B 22
for High Frequency Tran sformers a nd High Frequency Circu it s. Ty pe
MSfo 880-1 K is an electric tool of class III for low tension (42 Volts)
without safety conductor. For saf et y reasons the housing of this g rin-
der must not be eart hed.
The bevel gears h ave helical teeth, gears are l appe d for accurate
m
es hin g. Both part s to be sup pli ed as pairs only. Gearings a nd bear-
in gs are protec ted against du st and lo ss of grease.
Part of the cooling air is led by ducts throu gh the gearing in the gear
head for
additional cooling.
BE 101/e X 9.65
Printed in Germ any
G rin ding wheel
max .
peripheral Thr ead of
max. dia. I max.
width I
bore I
type
I speed
I
in . I mm
ft /s I s
pind le
in. mm
1n . I mm
mls
7 I178 3/s 10
1/ s 22.2 260 80 M 14
7 178 3/s 10
1/s
22.2
elas t ic
260 80 M 14
9 230 3/s 10 7/s 22.2 di
sc
260 80 M 14
9 230 3/s 10
7/s
122.2 260 80 M 14
3. Operation
First check that details on the rat ing plate agree with those of the hi gh
frequen
cy supply.
In o rd er to a void con stant overload, e.g. w hen cutting off , we re -
commend the installation of a s af ety switch correspon din g to th e
rated current of the motor (see also se pa rated in struction B 22).
Switch
mu st be in th e "Off " position when connectin g.
Check th at the tool rot ates in direction marked by arro w on the
machin
e, otherwi se the chucked tool may become loo se . To check
rotation switch on tool bri efly. If it does n ot follow a rro w, re verse
by ch anging over t wo leads in the plug.
Ty
pe MSfo 880-1d, MSfo 880- ldK a nd MSfo 880-1c, MSfo 880-1cK
must not be used w ithout wh ee l guards.
Do not exceed the dim ensions of gr inding wheels s tip ulated. When
working wi th crank wheel hold tool in such a pos itio n th at th e
g
rindin g wh ee l works under an ang le of 15- 30° . For cutti ng off use
cutt in g-off wh ee l with the prescribed flanges, f or cutt in g off stone
use
our wheel gua rd w ith adjustable support.
F urther mor e, the ha ndl e should be screwed into the right ha nd bo re
of the housing (seen from above) for cutting off, in order to pr eve nt
the grinding dust from being thro wn into the air inlet of the mac hin e.

64
I 515 ---- ------ ---------------- ------ ---------------- ~~
84
"S.
(0
~
44

Component Parts
0
z
Order
c Description+-' Reference
0'
....
oj
0
z
Order >-
Descri ption +-' Reference
<Y
....
oj
Po<
Po<
1-6 MK 3-76-2 I 1
motor housing, assembled
60
RJ 27 a- 40x21 ,5 1 Nilos
rin g
1
MK 3-76 1 motor housing
61 PT 11-48 1 end cover
2a SR 9-M5x7 1 grubscrew 62
LK6-26 1 needle bearing
3
state type
1 stator, assembled 63 RJ 30i-24x1,2 1 Seeger-V-securing ring
and vo lta ge w
ith winding
64
RJ 19-5 1 sealing ring
4 SR 11-M6x12 2 grubscrew 65
PT 19-42 1
be aring plate
5
SR 20-37 1
thr eaded sleeve 66 RJ 24-27 1 washer
6 SR 27-15 1 ring eyelet
67
LK 11-5 1 ball bearing
68
RJ 27a-40x 21 ,5 1 Nilos
rin g
7-27
GH7-34-4
1 fan housing, assembled
with switch
69 PT 16-36 1 end cover
70 SR 5-M4x15 1 countersu
nk screw
7
GH7-34 1
fan housing
8
BF 29-112 1 angle
9
BF 9-3x10 AL 4 countersunk rivet
71
WB6-62
1 drive
shaft
72
ZR 14-99*) 1 bevel g
ear wheel, 32 teeth,
200 cycles
10 EZ 1-54 1 switch, 25 A
11 DJ 5-25 1 rubber cap
12
SR6-M4x8
3 fillis ter screw
ZR 14-97*) 1 bevel gear wheel, 36 teeth,
300 cycles
73
BF 21-5x5x16 1 fitting key
( 13
SA 5-38 1 switch lever
14
DJ 1-46 1 felt ring
15
SR3-M4x6
1 fillister screw
16 SR
3-M4 x8 1
earth screw
74
RJ 29a-16x0,6 1 circlip Seeger
75
PT5d-M5
4 spring washer for bearing plate
76 SR 33-M5x15 4
I
hexagon socket screw
77 JS 20-20 1 protecting cap
78 MZ 35-28 1
FEIN pl ate
17-23
GH 4-60-1 1
handle, assembled Parts for MSfo 880-lc (6500 R.P.M.)
17 GH 4-60 1
handle
18 JS 4-76 1 ins
ulatin g washer
19 JS 13-75 1 cable protecting sleeve
20 RJ 7-35 1 retaining
ring
21 SR6-M4x6 2 fillister countersunk screw
22
JSt6-15 1
rubber sleeve
23
EZ 6-59 1 cable, assembled
50
I
ZR 13 -60*) 1 bevel pinion, 18 teeth, 200 cycles
ZR 13-58 *)
1 bevel pinion,
15 teeth, 300 cycles
72
ZR 14-98*) 1 be vel gear wheel, 33 teeth,
I
200 cycles
ZR 14-96*) 1 bevel gear wheel,
41 teeth,
300 cycles
Parts for low tension (42 Volts)
24
PT 31-23 1 clamping clip
24a
PT 31-29 1 clamping piece
24b
BF 9-4x15 AL
2 countersunk rivet
1- 6
MK 3-76-1 1
motor housing, assembled
7-27
GH 7-36-4 1 fan housing, ass e mbled
with switch
25
PT 31-21 1 clamping clip
26
PT6-.M3 ,5 2 spring washer
27 SR 3-M3,5x25 2 fillist
er screw
7
GH 7-36 1 fan housing
8
BF 29-109 1 angle
10
EZ 1-42 1
sw itch, 60 A
30
WL 2-32-1 1
rotor
12 SR 6-M5x10 4 fillis
ter countersunk screw
32 BF
21 -3x3x40 1 fitting
key
13
SA5-39
1 switch lever
34
JS 4-64 1 washer
35
LK 16-2 1 groove ball bearing wit h sealing 14
D) 5-24 1 rubber rin g
15 SR 3-
M6 x10 1 fillister screw
37
BF 21-3x3x10 1 fitting
ke y
38 FL 1-100 1
fan wheel, 200 cycles
FL 1-106 1
fan wheel, 300 cycles
24
PT 31-2 1 clamping
brid ge
24a
PT 31-28 1 cable clamping
pie ce
25 SR 3k-M4x25 2 fillister
sc rew
40
PT6-M8
1 spring washer
41
MR 1- M8
1 hexagon
nut
42 DJ 5-10 1 rubb er sealing
43 BU 1-186 1 cover
44 SR 33-M5x50 4 hexagon socket screw
45 SR
33 -M 6x 15
1 hexagon socket screw
46 SR 33-M6x55 2 hexag
on socket sc rew
17-28
GH 4-61-2 1 handle, assembled
17 GH 4-61 1 ha
nd le
23 EZ 6-60 1 cabl
e, assembled, 5 m (16 ft) long
28
DJ 5- 27 1 rubber sealing
46 SR 33-M6x90 2 hexag
on socket screw
47
SR 33-M5x25 4 hexagon socket
sc rew
Accessories
48
MR 19-1 1
nut
49
PT 1-M8 1 disc
50
ZR 13-61*) 1 bevel pinion,
23 teeth, 200 cycles
ZR 13-59*) bevel
pin ion, 17 teeth, 300 cycles
51
BF 21-5x5x16 1 fitting
key
52 RJ 24-13 washers
of different thickne ss
53 RJ 27i-17x35,7 1
Ni los rin g
Z 7-
SW 17 1 single e nd spanner
z 10-7 1 hexagon so ck et spanner 4 mm
(5 132 ")
z 10-8 1 hexagon socket spanner 5 mm
(3116")
z 13-22 1 peg spa
nner
MZ 19-32 1 2nd han dle, assembled
M8 -65 1 fl ange of grinding wheel
54-78
GH 6-52-1 1
gear housing, assembled
M8-52
1
fl ange of grinding wheel
54
GH6-52
1 gear housing
MZ6 0-3/FG 9 1 tube
of gear grease
57
LK 1-10 1 groove ball bearing
58 SR 5-M4x15 3 countersunk screw
59
PT 16-44 1 e
nd cover
wheel guard, assembled
IM 10-70-1 for MSfo 880
-1d
M 10-71-1 for MSfo 8 80 -1c
,,.) Parts 50 and 72 are la pped . Only to be supplied as pa ir s.

4. Maintenance and Lubrication
The grinder requires adequate maintenance . In order to avoid acci-
dents check cable at regular intervals. To replace cable take off screws
(15)
and remove switch lever (13). Remove screws (45) and (46)
and draw off handle backwards . Loosen clamping bridge (25) and
sw itch connections, then replace cable.
After fitting new cable check connection of conductors as well
as of earth wire.
The gearing, working under high load, need particularly good lubri-
cation. We recommend to re new the gear grease after approx. 300 dut y
hours. Please,
only use our special Fein gear grease FG 9. Mixing of
this grease with other greases endangers the greasing capacities, and
th e refore also use FG 9 for the roller bearin gs in the gear he ad. In
order to check and renew the gear grease loosen the screws (76) and
remove the bearing plate (65) with th e drive shaft (71). When remov-
ing the bearing plate and in particular when reassembling, please,
don't lose washers (66). They are needed for the adjustment of the
gearings, their loss rnay lead to damage of the gearings.
For good and adequate lubrication and in order to avoid overheating
it is important to pack the gearings and bear ings with the grades and
quantities of grease listed in the table.
Type
Ty pe of Quantity
Order
Contents
grease
oz 1
Reference
oz 1
g g
For gearings
MSfo880-ld
)
200Hz
FG9 22/s 80
MZ60-3/FG9
22/s 80
MSfo 880-ldK
200Hz
MSfo 880-1d 300Hz
FG9 3 90
MZ G0 -4/FG9 6 180
MSfo880-lc
) !
200H z
FG9 21/s 70
MZ60-3/FG9
22/s 80
MSfo 880- lcK
200Hz
1 180
MSfo 880-lc 300Hz
FG9 3 90
MZ60-4/FG9
6
For ball bearings
MSfo 880-lc, d }
FK3
I
appro x.
1/ 3
MZ60-l/FK3
1/s 10
MSfo 880-lcK, dK
for ba ll
of the
bearing
part 35
space
MSfo880-lc,d }
FG9
between
MZ60-3/FG9 22/s 80
MSfo 880-lcK, dK
for roller
inner and
bearings
I I
pa rts 57,
outer ring
62 and 67
Larger quantities of grease are packed in tins.
No claims can be entertained for damage due to ne gli gent maintenance
and inadequate lu b rication .
After 900 duty hours the machine should be completel y di sma ntled
as described under paragraph 5 and all parts should be thoroughly
cleaned. Rinse ball bea rings in clean sol ve nt and pack wi th fresh
grease as
per paragraph 4. The space between inner and outer ring is
to be one third filled with grease in order to prevent overheating of
the bearings.
5. Dismantling
The tool should only be tak en apart by an expert working m the
followin g sequence:
1. Remove grinding wheel and wheel guard.
2. Take off switch lever (13). Remo ve screws (45) and (46), draw
handle (17) backw ards and disconne ct motor cable from swi tch.
Unscrew screw (16) and remo ve earth wi re.
3.
Unscrew screws (44) and remo ve fa n housing (7).
4.
Unscrew hexago n nut (41) and draw off fa n wheel (38).
5.
Remove screws (76) and draw off bear ing plate (65) wi th drive
shaft (71) and be ve l gear wheel (72). Mind washers (66).
6.
Unscrew screws (47), then dr aw gear housing (54) w ith rotor (30)
out of motor housing.
7.
Unscrew he xago n nut (48) off rotor shaft (30), th en take out
washer (49), bevel pinion (50), fitting key (51), wash er (52), and
Nilos ring (53). Then rotor shaft (30) can be drawn out of gear
housing.
Re-assemble m reverse sequence.
When ref ittin g pm10n or ar mature
shaft and be aring pl ate, please, bea r in mind that was hers are to be
placed in their right places as they are ne e ded for accurate a djustment
of the gearing . When refitting bearing plate check th at bevel gear
wheels mesh
accurately. For this purpose turn drive shaft (71) slightly;
only then fasten screws (76).
6. Repair and Spare Parts
We recommend our Fein Servi ce Stations f or car rymg out all over -
haul and repair work quickly and expertl y.
When ordering spare parts, plea se, quote Type and Ser i al No. of the
machine as well as Order Referenc e of the req uired part or send in the
damaged part.
We draw your attention to the nee d to ca rry out a hi gh voltage test
in accordance w ith y our local re g ul ations (or VDE re gul ation 0740)
before ta king a tool i nto service afte r any repair carrie d out by yo ur
own staff.