Fein DSc 636 User manual

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To be handed to the
Operating instructions
for the double insulated and radio suppressed
Two Speed Percussion Drill type DSc 636
and for type DSc 736 (42 volts)
1. Technical Data:
Current: - (AC single phase)
I
Capacity in Speed R.P.M. Percussions
Net weight I
Ty pe
stone I
steel
full l oa d
pe r minute Input
I
Out put with chuck
in . I mm
in.
I
mm full load Watt s Wa t ts lbs
I
kg
DSc 636
1st speed 820 1st speed
1f2
12 5 /16
8 2nd spe ed 1600 13000 280 150 4.9 2.2
DSc 736
2. Construction
This two-speed percussion drill is an electric tool of Class II
with protective insulation without earth wire and in accordance
with VDE re gulations 0740. The p ro tective insulation is addi-
tional to the normal insulation and is attained by the shockproof
moto r housing mad e of Pol ya mide and by insul a tin g the anna-
ture sh aft aga inst th e gearing. The drill is tested wit h the pre-
sc rib ed te st vo ltag e of 4000 V. The machine is radio suppressed
according to r adio interference degree N. It is supp l ied with
a two-core cable without earth wire and must not be earth ed.
Type DSc 736 for low tension (v olt age 42 Volts) is of the sam e
design but w ithout double insulati on and not radio suppressed.
To prevent damage to the insulation no additional marking
plates and signs must be riveted or screwed on the housing. We
recommend the use of transfers only.
3. Connection and Operation
Main voltage must correspond to th e operating voltage marked
on th e rating plate. The tool can be plugged into pl ai n or safety
sockets.
Switch must be in the "Off" position when connecting _
BE 184/e X 8. 69
Printed in Germany
Changing the Speed :
Turn slide (65) anticlockwise t hrough 90° (slide grip must be
horizo n tal) and push for wa rd (slow speed ) or backward (fast
speed). t he n turn slide cl ockw ise through 90 ° ; now the slide
is lo cke d.
Attention ! Be for e cha nging spee d, ma c hin e h as to be sw it ched
off .
For Percussion Drilling: the strength of blow can be adjust ed
by turning the sleeve (55) cloc kw ise :
We recommend to use low speed for percussion drilling as this
has shown to realize the best percussion drilling capacity. The
higher speed should be preserved for drilling onl y.
4.
Maintenance
Th e t wo-spee d p ercussion drill requires proper ma int enance.
Before carrying out any maint e nance WC?rk a lway s rem e mber
to pull out the plug. E ve ry 300 duty hours clean th e machine
of carbon dust and dirt, in particular commutator and insulated
parts. This is done with a brus h or by blo wing o ut the tool wi th
dr y pn euma tic air. After checki ng th e carbon b rush es make
sure to ref it th em in the ir or i gi nal position and chec k that they
move easily in their h older . They should be r eplaced at the

56
57 58
44
46 47 48 49
59-Y
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Component Parts
'
Part No
Order
.b
Description
Reference
a
Part No
Order
>.
D e scription
Reference
a
1-25 MK 1-15-2 . 1
motor housing, assembled
48
FD 1-184 1 compression spring
1-15 MK 1-15-1 1 motor housing, assembled
1
MK 1-15 1
motor housing
2 EZ 1-58 1 switch
49 A 2-52 1 a
dj usting ring
52 BF 16-80 1 p
in
53 FD 1-198 1
com pr ession spring
3 EZ 22-34 1
capacitor
4 SR3-M3,5x6
1
fillister head screw
5 EZ 12-43-1
1
2
carbon holder, assembled
8 EZ 11-59 2
ca rbon brush
9 EZ 13-8 2
sliding cover
10 SR2-M3,5x12 4
cylindrical screw
11
BF 19-42-1 1
locking pin
12
state type
1 pole housing with winding
and voltage
13
PT6-M3,5
2
securing plate
14
SR 2-M3,5x50 . 2 cylindrical screw
15 JS 28-4 1
insulation ring
16 EZ 7-101 1 c
abl e
54
DJ 12-3 1
ri ng
55 BU 4-63 1
sl ee ve
56
DJ 1-51 1 f
elt ri ng
57 LK 15-6 1 ne e dle be aring
58 RJ 15-84 1 r et ai ning ring
59 SR 14-33 2 countersunk screw
59a
JS 19-21 2 r
ing
59b
PT 5d -M 5 2
secur i ng plate
60 ZR15-20x0,75 1 s lide gear wheel, 40/33 teeth
61 ZR16-13x0,75 1 pini o n, 10/16 teeth
61a
PT 8-153 1 d
riv ing plate
62 ZR15-22x0,75 1 g
ear whe el, 30 te et h
63 BF 17-168 1 s
witc h bolt
17 JS 13-7 I 1
ca bl e protect i ng sl eeve
18 PT 31 - 21
I ~
cabl e clamping bridge
19 SR3-M3,5x10
fillister head screw
20-23
GH 1-18-1 1
cover with spare carbon brushes
24 SR2-M3,5x15
2 cylindrical screw
25 SR6k-M3,5x8
1 fillister countersunk screw
26 s
tat e type
1 armature w ith winding
I
a nd vo lt age
commutator and fan
30 ZR 4-42 1
pinion, 6 tee th
31
SR 2-M 3,5 x6
3
cy lind ric al s crew
32 PT 5d-M3,5 3 s
ec uring pl at e
64 FD 7-31 1 lo ck spring
65
A9- 53 1 tr i gger
67 LG4-5
1
bear i ng support
68
SR 2-M3,5x10 2 cy lindrical screw
69 LK 6a-11 1
needle cage
70 SR2-M3,5x55 2 cy lindrical screw
71
S R)3 -M3,5x65 2 cy lindrical screw
72
PT6-M3,5
4
sp ri ng wa sher
73 BF 1-4x18 1 cy
li ndric al pin
74 MZ 3
1-1
1
gr ease nippl e
33 LK 16-35 2
groove ball bearing
34a
RJ 12-56 1
sealing ring
42 Volts
34-69
LA 8-105-3 1
drill head, assembled
3 4, 67-69,
LA 6-150-1 1
intermediat e be aring, ass e mbl ed
73
36-69, 74 LA 8-105-2 1
out er bea r ing, ass e mbl ed
1-25
I
MK 1-15-6
! iI
mo tor housing, assem bl ed
1-15 MK 1-15-5 m ot or housing, ass 'embl ed
16 EZ 6-126 cable
36-41, 74
LA 8-105-1 1 o
ut er be aring, ass e mbl ed
34 LA 6-150 1
int e rm e diat e bearing
Accessories
43 LK 1-1 1
groo ve ball bea r ing
44 WB 3-33 1
drill shaft
MZ 7-34 1 3-jaw
geared dmd<:
45
A 2-41 1
cam ring
46 LK 15-4 1
needle bearing
MZ57-2 1 ke y
Z
7-SW 17 S 1 s
panner
47
PT 15-39 1
pr e ssur e plat e
L ___

latest when they have worn down to 7 mm (1/4''). Please, only
use original Fein carbon brushes. After fitting new brushes run
tool unloaded for about 15 minutes to allow brushes to bed in .
One pair of spare carbon brushes will be found in the cover
of the handl e, please, do not forget to reorder them in time.
In order to prevent accidents check cable at r eg ular int e rvals .
To replace the cable take off the screws (24, 25), then take off
the handle cover (20). loosen the two screws (19) of the terminal
clamp (18) and clamp off the cable from the switch (2).
5. Lubrication
The percussion mechanism should be greased twice a week by
a greaser through the grease nipple (74).
We recommend to renew the gear grease after 300 duty hours .
Please, only use the Fein special greas e FG 12. For ball bearings
wh ich should be lubricated after approx . 900 duty hours we re-
commend our ball bearing grease FK 3. The ball bearings are
to be rinsed in clean solvent and packed with new grease.
The space between inner and outer ring is to be one third filled
with grease in order to prevent that the bearings do not over-
iteat.
Type of grease
Quantity
Order Reference
Contents
,oz I g oz I g
~ for gearing
2/ 3 I
~
MZ 60- 3/FG 12 22 /3 80
.,_5
~ or ball
- -
MZ 60-2/ FK 3 1
/3
40
bearings
I
No claims can be entertained for damage due to negligent main-
tenance and inadequate lubrication.
6. Overhaul
After 900 duty hours the machin e should be compl ete ly dis-
mantled as described under paragraph 7 and all parts should
be thoroughly cleaned. Rinse ball bearings and gears in clean
solvent and pack with fresh grease as per paragraph 5.
Please be sure that all electric parts are only cleaned dry.
'
U se U nive r sal Gre :- .sc typ e S st 1
In stead of ot er typ 8 <> of g r ease I
__ _..
· -·
7. Dismantling
The tool should onl y be taken apart by an expert.
1. Unscrew fillister head screw (25) and the two cy lindrical
screws (24). then take off handle cover (20).
2. Remove supply cable from switch , d ra w out switch and dis-
connect motor cable.
After un screwing t he screws (10) draw out carbon holder (5),
unscrew screw (4) and pull out radio inte rference capacitor (3).
3. Unscrew cylindrical screws (70) and (7 1) and remo ve outer
bearing (36) with intermediate bear i ng (34).
4. Take apart outer bearing (36) and, only if necessary, the
speed-changing mechanism in the following manner:
Draw spring (64) out of switch bolt (63), then drigger (65)
out of switch bolt (63), unscre w countersunk screw (59) a nd
pull out drill shaft with percussion head, loosen chuck. Draw
off sleeve (55) and go on taking apart percussion head .
5. Pull o ut armature (26). unscrew the three screws (31) and
remove armature drive (30).
6. Draw insulation ring (15) out of mo to r housing (1). unscrew -
cylindrical screws (14) and remove pole housing (12) . .{
Re-assemble in reverse sequence.
All screws must be tightly fastened. In o rder to secure the tw o
countersunk screws (59) additionally use Loctite , the fluid secur-
ing agent. Before applying this agent clean the parts of all
grease.
8. Repair and spare parts
We recommend our Fein Service Stations to carry out all over -
haul and repair work quickly and expertly.
Please quote Order Reference when ordering spare parts or
send in sample part, quoting the type of the machine.
We draw your attention to the need to carry out a high voltage
tes t in accordance wit h your local regulations (or VDE regu-
lation 0740) before taking a tool into serviCe after any re pair
carr ied out by your own staff.
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