Fein MSfe 649-1 b User manual

To be handed to the workshop!
Operating instructions for the
Electric Angle Grinder type MSfe
649-1 b
with electronic speed control
1. Technical data
Current: "' (single phase AC)
Double insulated without earth wire according to the VDE regulations 0740
Radio suppressed in accordance with radio interference degree VDE 0875
Out-
Net weight
elastic disc Polishing tool Thr ead
Type
Speed Input
put max. (/)
max. (/)
of
R.P.M.
Watts
Watts
lbs
MSfe 649-1b
HOO-
750 480 7.7
4000
2. Mode of Operation
Always make sure that tool is switched off before plugging.
Main voltage must correspond to the operating voltage mark ed
on the rating plate .
The speed can be changed at the control button of the inter -
mediate piece between motor housing and handle stepless from
1400 to 4000 rotations per minute. The speed can be changed
at stand-still or during operation of the machin e. Clockwise
rotation : increasing speed; ant i-cloc kwise rotation: diminishing
speed.
The angle grinder is equipped with a motor protecti ve plug.
When overloaded , it disconnects the machine.
When the motor protective plug is released, it can again be
connected after 20 or 30 seconds.
Switch must be in the "Off" position, before connecting again
the motor protective plug.
To pr eve nt the overbridging of the insulation no add ition al
ma rk ing plates and signs must be riv eted or screwed on th e
housing. We recommend the use of transfers only.
Only us e grinding wheels with the approved specifications and
for the approved peripheral speed according to the table .
3. Maintenance and lubrication
Before carrying out any ma int e nanc e wo rk alwa ys remember to
pull out the plug.
BE 418/e X 5. 13 Printed in Germany
I
kg in.
I
mm
in . I mm
spindle
3.5 63
/4 170 I
I
97 /s 250 M 14
After 100 duty hours clean cool air openings on the motor
housing . Bl ow out motor with pneumatic air.
After 300 duty hours renew the gear grease. Use on ly the F ein
special gear grease FG 9. Do not mix with ot her greases; for
this purpose grease also th e anti-friction b ea r ing in the gear
head with FG 9. Pay attention to the gi ve n quantities of grease.
No claims can be entertained for damage due to negligent main-
tenance and inadequate lu brica tion.
Typ e
Quan- Order Contents
T ype of
t ity refe re nc e abo ut
grease
For gears:
MSfe 649-1 b I
FG 9 I 3.2 oz 90 g IMZ60-4/ FG9 I6.4 oz 180 g
For ball bearings :
MSfe 649-1 b I FK 5 I MZ 60-5/ FK 5 0.2 oz 5 g
for ball
about one
b ea rin g thi
rd of th e
part 74
MSfe 649 -1 b.
FG 9
space bet -
MZ60 -3/ FG9 3.2 oz 90 g
ween i nner
for ant i-
and outer
friction
bearings
1
ring
I
parts 37,
45, 55
After 900 working hours the g rind er must be thoroug hl y cleaned.
Wash th e ball bearings in clean solvent and pack them with
fr e sh grease. Quantit y a nd ty pe of grease according to the tabl e.
For dismantling see § 4.

49~~
4
\45
35 ~ ~ ~
' ~ '
7 1 2 3 6 26 80 77 105 104
\
~.>. A. , >. \
55
60 _/
74 81 78 110 101 106 102 103 112 111
54
52 53 47 48 51 43 44 44a 39
...dl
~ ~- 41
I I
"l
f ~~ --~
I
70 73 75
11 12 82 73 72 107 109 108
t?
I L - 'jJ ~
9

Component Parts
Part
Order
?-<
Description
No Reference
0
Part
Order
?-<
Description
+"
No Reference
a
1-12
MK 3-99-121) 1 motor housing, assembled
74 LK 16-10 1
grooved ball bearing
1
MK 3-99 1 motor housing
76 JS 20-20 1 plastic plug
2,3 EZ 12-67-1 2
carbon holder, assembled
77 GH 7-78 1 intermediate piece
4
SR 41-M3,5x10 4
Phillip's screw
78 EZ 62-17-2 1 electronic speed control
5 EZ 11-67 2 carbon brush
80
PT 14-46 1
insert for switch
6 SR
3-M4x6
2
fillister screw
81
DJ 5-58 1 sealing plate
82 SR 2-M4x5 1 cylindrical screw
83
JS 13-138 1 protecting sleeve
7
state type 1
pole housing with winding,
and voltage
assembled
8 PT 37-13 2
securing plate
9 SR 1-M4x60 2
hexagon head screw
101- GH 4-67-37 1
handle assembled with switch
110
101
GH 4-67 1 handle
10
JS 28-10 I 1
air guiding ring
11
PT 27-40 2
cover
12
SR 38-4,2x13 4
screw
102 EZ 1-61 1 switch
25-30
state type 1
armature with winding, collector
103 PT 31-33 1 cable clamping bridge
and voltage
and fan, balanced
104 SR 3-M3,5x12 2 fillister head screw
105 EZ 22-36 1
capacitor
35-61 GH 6-73-1 1
gear housing, assembled
106 SR 2-M3,5x10 2 cylindrical screw
35
GH 6-73 1
gear housing
107
DJ 1-52 1 felt ring
37 LK 16-38 1
grooved ball bearing
108 SA 5-47 1 control lever
38 PT 11-58 1
cover plate
109 SR 3-M3x15 1 fillister head screw
39
DJ 1-50 1
felt ring
110 DJ 5-42 1
sealing plate
40 PT 8-184 1
disc
111 EZ 7-102-4 1
cable with motor protective plug
112 I JS 13-94 1
protecting sleeve
41
PT 16-54 1
flange
42
SR2b-M4x12
3
cylindrical screws
43 2)
ZR 13-95 1
bevel pinion, 10 teeth
44
RJ 24-85
washer for bevel pinion
44a
MR 11-33 1
threaded ring
45
LK 6-24 1
needle bearing
46 RJ 16-20 1
securing ring
47
WB 6-85 1
driving shaft
48 BF 23-15 1
fitting key
Accessories
49
2) ZR 14-140 1
bevel gear wheel, 63 teeth
50 RJ 29a-16x0,6 1 Seeger circlip
51
PT 19-50 1
bearing plate
Z 7-SW 17 L 1
single ended spanner
z 10-10 1
socket screw wrench 4 mm hexagon
z 13-22 1
peg spanner
52
DJ 1-49 1
felt ring
53
PT 11-62 1
cover plate
54 RJ 27a-40x20,2 1 Nilos-ring
MZ 19-32 1
2. handle
MZ 60-3/FG9 1
tube gear grease
EZ 11-67 2
carbon brush
MZ 60-5/FK5 1
tube of ball bearing grease
55 LK 16-25 1 grooved ball bearing
56 I
PT 16-58 1 I
end cover
57 SR
2b-M4x12
3
cylindrical screws
58
DJ 12-9 1 ring
59
DJ 11-5x9 4
sealing ring
60
SR33-M5x20
4
socket head cap screw
61
RJ 24-62
washer for bearing plate
70 SR 33-M5x20 4 socket head cap screw
72 SR 2-M5x73 4
cylindrical screw
73
PT 5d-M5
8
securing plate
1)
When ordering, please state voltage.
2)
The parts 43 and 49 are lapped together. They are only delivered by pairs.

Please be sure that all electric parts are only cleaned dry.
. Carbon brushes should be replaced at the latest, when they ha ve
worn down to 7 mm (' //' ). To change the carbon brushes , see
§_4 (1 ahd 2). Use only Fein carbon brushes.
After fitting new brushes run the mach ine unloaded for about
15 minutes to allow brushes to bed in. Check cable at regular
i ntervals. To replace it, see § 4 (3).
4. Dismantling
Th e tool should only be taken apart by an expert.
1. Unscrew screws (12). take off cover (11).
2. Disconnect the carbon cable and draw carbon brushes (5) out
of the holder.
3. Unscrew screw (109). remove the control lever (108). Unscrew
?Crews (106, 72), push away the handle . Remove the cable
from the switch (102). Remove int ermediate piece (77) ,
loo se n the wire connection at the motor, remo ve sealing
plate (81). slide out electronic speed control assembled (78)
with insert for switch (80) out of the intermediate piece (77).
remove the insert for switch (80).
4. Unscrew screws (60), remove bearing plate (51) with the
driving shaft (47) and bevel gear (49).
Do not lose washers (61) and sealing rings (58, 59)!
5.
Remove the screws (70) and withdraw gear housing (35), com-
plete with armature (25) from the motor housing (1) .
6.
Loosen threaded ring (44 a). unscre w the bevel pinion (43) and
tak e it out of the armature shaft (25). Hold in place the
armature shaft with the flats !
D
raw th e arma ture shaft (25) out of the ball bearing (37).
Unscrew screws (42). take away flange (41).
7. Draw the insul ating ring (10) out of the moto r housing,
unscrew screws (9) , remove the pole h ou sing (7).
8. Unscrew screws (4) and remo ve the ca rbon holders .
5. Repair and spare parts
We recommend our Fein Service Stations for ca rrying out a ll
overhaul and repair work quickly a nd expertly.
We deliver special tools for the rep ai rs. The base tube ZSo 8-2
and the two-par t base plate ZSo 9-49 are used to disman tle the
bevel gear wheel (49).
When ordering spare. parts, pl ease quote order reference or
send in sample part, stating tlie type of the machine.
We draw your attention to the need to carry out a high voltage
te st in accordance wi th your local regulations (or VDE regula -
tions 0740) befor e tak ing a tool into serv ice after any repair
carr ied out by your own staff.