Fein MSf 649-1a User manual

To be handed to the workshop! l
I
·Operating instructions Electric Angle Grinders
type MSf 649-1a, MSf 649-1
band for MSf 749-1a,
MSf 749-1 b {42 Volts)
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-
Type
Speed Input
put
Net weight
R.P.M. Watts
I
H. P. lbs kg
MSf 649-1b . 4000 750 0.65 7.26 3.3
l
MSf 649-la
2300 750 0.65 7.48 3.4
2.
Mode of Operation
Always make sure the tool is switched off before plugging.
Main voltage must correspond to the operating voltage marked
on the rating plate.
The Angle Grinders for tensions: 105-240 Volts are equipped
with motor protective plugs. 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 prevent the overbridging of the insulation no additional
marking plates and signs must be riveted or screwed on the
housing. We recommend the use of transfers only.
Only use grinding wheels wit]]. the approved specifications and
for the approved peripheral speed according to the table (see
ulso § 5).
3. Maintenance and lubrication
Before carrying out any maintenance work always remember
to pull out the plug.
After 100 duty hours clean cool air openings on the motor
housing . Blow out motor with pneumatic air.
After 300 duty hours renew the gear grease. Use only the Fein
special gear grease FG 9. Do not mix with other greases; for
this purpose grease also the anti-friction bearing in the gear
BE 365e BX 1. 73 : Printed in Germany
Grinding Wheel Admiss. peri-
Thread
max. C/J
hole
Type
of
in. I
mm
I
in . I
mm
I I
pheral speed
ft/s I m/s
spindle
63 /4 170 7
/s
22.2 elastic disc 246 80 M 14
9 230 7
/s
22.2 elastic disc 246 80 M 14 I
head with FG 9. Pay attention to the given quantities of grease .
No claims can be entertained for damage due to negligent main-
tenance and inadequate lubrication .
Type
Quan-
Order Contents
Type of
tity reference
about
grease
For gears:
MSf 649-la
I
FG 9
I
2.8 oz 80 g I MZ60-4/FG9 16.3
oz 180 g
MSf 649-1b FG 9 3.2 oz 90 g
MZ60-4/FG9 6.3 oz 180 g
For ball bearings:
MSf 649-la, b Sst 1 MZ60-2/Sstl 11h oz 40 g
for ball
bearing
about one
part 74
third of the
space bet-
MSf 649-1a, b FG 9 ween inner MZ60-3/FG9 3.2 oz 90 g
for roller
bearings
and outer
parts 37,
ring
45, 55
After 900 working hours the grinder must be thoroughly cleaned.
Wash the ball bearings in clean solvent and pack them with
fresh grease. Quantity and type of grease according to the table .
For dismantling see § 4 (5 and 6).

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Component Parts
Part Order
:>...
No Reference
0
Description
Part
Order
:>...
No R~ference
0
Descrip tion
I I
1-12 MK3-99-4
1) 1
motor housing, assembled
58
DJ 12-9 1
ring
1
MK 3-99 1
motor housing
59 DJ 11-5x9 4
sealing ring
b
2,3 EZ 12-67-1 2 carbon holder, assembled 60 SR 33-M5x20 4
hexagon socket screw
2 EZ 12-67 2 carbon holder
61 RJ 24-62 was her
3 FD 7-32 2
spring
70 SR 33-M5x20 4 hexagon socket screw
4 SR 41-M3,5x10 4
Phillip's screw 72 SR33-M5x30
4
hexagon socke t screw
a 5 EZ 11-67 2
carbon brush
73
PT 5d-M5
8
sec uring plate
6
SR 3-M4x6
2
fillister screw
b 74 LK 16-10 1 grooved ball bearing
b 7 state type t
pole housing with winding , 76 JS 20-20 1
plug
and vo lt age
assembled
8
PT 37-13 2
securing plate
9 I SR 1-M4x60 2 he xago n head set screw
10
JS 28-10 1
air guiding ring
11
PT 27-40 2
cover
12
SR 38-4,2x13 4
screw jack
25-30
state type 1
armature with winding, collec tor
and voltage
and fan, balanced
35-61
GH 6-73-1 1
gear housing, assembled for
MSf 649-1 b
35-61
GH 6-73-2 I 1 gear housing, assembled for
MSf 649-1 a
b
101-
GH 4-67-18 1 I
handle assembled with switch
110
101
GH 4-67 1
handle
102 EZ 1-61 1
switch
103
PT 31-33 1
cable clamping bridge
104 SR 3-M3,5x12 2 fil
lister head screw
105 EZ 22-43 1
capac itor
105a I
JS 13-98 1 hose
106 SR 2-M3,5x10 2 cylindrical screws
107
DJ 1-52 1
felt ring
108
SA 5-47 1
control le ve r
b
a
35
GH 6-73 1
gear housing
37 LK 16-38 1
grooved ball bearing
38
PT 11-58 1
cover p lat e
39
DJ 1-50. 1
felt ring
b
109 SR 3-M3x15 1 fil
lister head screw
110 DJ 5-42 1
sea ling ring
111 EZ 7-102-4 1 ca
ble with motor pro t ec ti ve plug
112
JS 13-94 1
protecting sleeve
I
a
a
40
PT 8-184 1
disc
41
PT 16-54 1
flange
42
SR2b-M4x12
3
cylindrical screws
b 43 2)
ZR 13-96 1
bevel pinion, 7 teeth for
MSf 649 -1 a 42
Volts Parts
b 43 2)
ZR 13-95 1
bevel pinion,
I0 t ee th for
MSf 649-1b 1-12
MK 3-99-5 1 motor housing, ass e mb l ed
44
RJ 24-85 1
washer
b 2,3 EZ 12-68-1 2 carbon holder, assemb led
44a
MR 11-33 1
threaded ring
2 EZ 12-68 2 carbon holder
45 LK 6-24 1 n ee dle bearing
a 5 EZ 11-72 2
ca rbon brush
46 RJ 16-20 1 securing ring
a 111 EZ 6-152 1 cab le
47
WB 6-85 1
driving shaft
a 112
JS 13-95 1
protecting sleeve
48 BF 23-15 1
fitting key
'
b 49 2) ZR 14-141 1 bevel gear wheel, 76 teeth
for MSf 649-1 a
b 49 2) ZR 14-140 1 bevel gear wheel, 63 teeth
for MSf 649-1 b
Accessories
50
RJ 29a-16x0,6 1
Seeger circlip
51
PT 19-50 1
bearing cape
52 DJ 1-49 1 felt ring
Z 7-SW 17 L I 1
spanner
z 10-10 1
socket scr ew wr en ch 4 mm hexagon
53
PT 11-62 1
cover plate z 13-22 1
peg spanner
54
RJ 27a-40x20,2 1
Nilos-ring MZ 19-32 1
2. handle
55 LK 16-25 1
grooved ball b ear ing
56
PT 16-58 1
end cover
b I MZ 60-3/FG9 1 t ube gear grease
I EZ 11-67 2
carbon brush (220 V)
57
SR2b-M4x12 3 cylindrical screws
EZ 11-72 2 ca
rbon brush (4 2 V)
1)
When ordering, please state voltage
2)
Th e parts 43 and 49 are lapp ed together. Th ey are onl y delivered by pairs

Please be sure that all electric parts are only cleaned dry.
Carbon brushes should be replaced at the latest, when they have
worn down to 7 mm ('/4'). To change the carbon brushes, see
§ 4 (1 c\.nd 2). Use only Fein carbon brushes .
After fitting new brushes run the machine unloaded for about
15 minutes to allow brushes to bed in. Check cable at regul ar
intervals . To replace it, see § 4 (3) .
4. Dismantling
The tool should only be taken apart by an expert.
1. Unscrew screws (12), take off cover (11) .
2. Disconnect the carbon cabl ,e and draw carbon brushes (5) out
of the holder.
3. Unscrew screw (109), remove the control lever (108). Unscrew
screws (106, 72), push away the handle . Remove the cable
from the switch (102) .
4. Unscrew screws (60), remove bearing cape (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 (44a), unscrew the bevel pinion (43) and
take it out of the armature shaft (25). Hold in place the
armature shaft with the flats!
Draw the armature shaft (25) out of the ball bearing (37).
Unscrew screws (42), take away flange (41).
7. Draw the insulating ring (10) out of the motor housing,
unscrew screws (9), remove the pole housing (7).
8.
Unscrew screws (4) and remove the carbon hold ~ r.
5. Repair and spare parts
We recommend our Fein Service Stations for carrying out all
overhaul and repair work quickly and expertly.
We deliver special tools for the repairs . The base tub e ZSo 8-2
and the two-part dismantling plate (ZSo 9-5 for MSf 649-la,
ZSo 9-49 for MSf 649-1b) are used to dismantle the bevel gear
wheel (49).
When ordering spare parts, please quote Order Reference or
send in sample part, stating the type of the machine.
We draw your attention to the need to carry out a high voltage
test in accordance with your local regulations (or VDE regula-
tion 0740) before taking a tool into service after any repair
carried out by your own staff.