Fein ASb 53-2 User manual

(
ASb 53-2
To be handed to the workshop!
Operating instruction
for the Impact Wrench type ASb 53-2 (D.C. and A. C.
single phase) and ASb 53-2K (42 Volts)
Technical data
Type of current : ~ ; ,...., (D.C. and A.C. single phase)
For
screws Square
Sp eed R.P.M . Ta ps
Input I
Ou t- Net w eigh t
Ty
pe
standard
I
high ten sile
dri ve
full
I
no
p. M.
put
up to
up to
AS b 53-2 M 22
(1 /s") M 18 (3/4'')
A Sb 53-2 K (42 Volts)
1. C on struction
Th e t oo l is dri ve n by a ro bus t, fan- c ooled AC/DC motor m ount ed
in an e xtr a -r igid light alloy housing. T he co mp ac t planetary
reduction gearing is robust and silent in operation . Th e well-
balanced percussion mechanism is totally enclosed in the tool-
head casing and is easily removed . The tool ho ld er co mpli es
w
ith int e rn a ti o nal s tandards and has a 3
/
4" (19 mm) square drive.
2. Rev ersing the drive
is done by m ea ns of th e reve rs in g ring (1 4) mo un te d on th e
motor housing. Turn reversing ring only when tool is switched
off, otherwis e commutator and windings will be damaged.
3. Mode of operation
Th e mot or dri ves th e to ol hold er w ith to ol a tt ac hed vi a ge arin g,
d
rive sp indl e a nd p ercuss i on m ec ha nism. The di rect dri ve of
a
pp ro x. 1,100 r.p.m. is cut o ut as so on as th e screw or n ut h as
be en roughly run down. Once the motor reaches its ra t ed lo ad,
the percussion m ec hanism comes into operation and converts
the driv e forc e of the motor - which continues to run at uniform
speed - int o an int e rmittent torqu e applied at the rat e of 1,500
r.p .m., i.e. two str okes for each revo lu t ion of th e dr ive s pindl e.
Sc r ews a nd nuts ar e sl acke ned in re ve rs e or d er: fir st p erc us si on
st rokes , follo we d by d irect d ri ve . Th e t oo l is ve ry ea sy to
h
an dl e, as t he op era tor ne eds not e xert a ny r es tr aining tor qu e.
As the clutch w ill always disengag e as soon as the ra te d load
is attain ed, th e mo tor cannot be ov e rl o ad ed.
4.
Application
The fu ll tightening or slackening action pro v ided depends on
th e tim e during which th e pe rcussion mechani sm is allowed to
run. Max. tig hte nin g to rq ue is th e s um of the to rqu e ap pli ed by
each stroke. According to the type of screwed connection the
max. torque will generally repre se nt betw e en 80 and 150 single
torqu e st ro kes , whi ch are appli ed in 3 to 5 se c ond s. Av ail a bl e
m
ax. torque in norm al servi ce is 185 lbs. ft. (26 kpm) (see di a-
gr
am m p. 4) .
Th
ere is no p oi nt in app ly in g th e tool f or l onge r th an 5 sec ond s
sin ce the torq ue w ill not in crease any furth er, w hil e the tool
BE 176/e BX 11. 64 Pr int ed in German y
i n.
3f,,
l oa d lo ad
in Wa tt s lbs
I kg
- -
I I I
750 1400 I 1500
I
480 280
I
11.1 5.0
I I I
head will appreciably heat. O ve rhe a ting w ill lead to incr ea sed
wea r of all percu ss ion com p one nts and excessive lubri can t con -
s
ump tio n. Mor eover, such ove rh eat in g w ill make th e too l too
hot to handle .
It is no t ad v isable to u se att ac hments ex c ee di ng 4.5 lbs in
w
eigh t, s in ce tqe t ee l hol d er se ati ng is not design ed for su ch
loads. I Use U n iv er sa l Gre~se typ
13
Sst 1
! l ns • ..,a o r;f o~ ""r t'/.C:: ' -·.f ,•r , 5 1
5. Maintenance and · lubrication ·· -8
T hi s w ill depe nd on the d ut y. Th e fo llo w ing ins tru ctio ns are
for co nti nuous use in 8- hour day with actual t ool running time
repr es en ti ng 2 0° /o of total duty period . The tool hold er (78)
should be lubricat ed ev ery ot her day by me ans of the oil er (81 )
at the h ea d (79). U se mac h in e oil or thin-flo wi ng grease . T he
pe rcu ssion me cha nism sho uld be comple te ly cl ea ned of old
grea
se at l east eve ry 300 h ours ( ap prox. 6 weeks) . For th is pu r-
pose r
emove th e thr ee sc r ews (82), th en take off the o ut er bea r-
ing (7 9) a nd li .f t the p er cu ss ion m ec h anism ou t of the in ter -
media te bearing without taking it apart.
Then app ly grease libe ra ll y to the impact fac es of parts (7 6) a nd
(78) (3 0 to 40 g or about 1 to P/2 oz.). Ball pi vo ts a nd plan e tar y
ge
arin gs s hould also be gr e ase d w ith FK 3. FK 3 is a high-gr ade
qua li ty gr ease a nd is su itable for a ll percu ssio n m ec h anism
parts beca use of its go od he at re si stan ce and ad he ren ce . Ba ll
b ea ri ng gr ea se p ac kin gs sh ou ld also be re pl en ishe d wit h FK 3.
Should the per c ussion me chan i sm jam or run i rr eg ul arl y in spite
of ad e qu ate lubrication and re gul ar maint ena n ce , the combin ed
dri ve asse mbly sh o uld be t ak en out as de sc ri bed und er par a-
gr a ph 7, a nd th e indi v idu al pa rts should be t ested . Fr e qu en tl y,
ho wev er, un eve n runni ng is cau sed by wear , i.e. imp act dogs
which h ave b eco me ra di use d, or re l axatio n of spr in g (75). so
that sp ring p ress u re weake ns. W or n d ogs can be regro und. Max.
tigh t en i ng or slackening torque can onl y be obtained w ith a
tool app ly ing uniform st ro k es along the axis .
Carb on brushes (17) shoul d be che cked at inte r va ls of ab o ut 6
w
eeks and re pl ace d if appr eci abl y wo rn d ow n (when co mpl e-
tely
worn d ow n th ey w ill be 7 mm [1 /4" ] long). In or d er to re-
pl
ac e th em take off ca rb on hold er caps (1 6) . Rep l ace bru sh es in
ti me to avo id dam age to t he co mmut at or .

78
21
22 - ~lr/1£\ '~~~ - ~
333
68 61 60 55 54
81 78 76 74 72 63 82 83 I 59 I 62 1 56 1 50 I 53 5c 4 Sa 5b
8~~- -,- . ($! 28
9 - ~. . -
13 . " ~ 27
20
45 -- -- -- -- --
14c
74b
44
U1 ~ f-' II / I ' ~ \Y ..& 6.\\\n\l:'t..\ f I '""" ,---- 14a
43
42
\Jffr ii i/ :~ ~/ /\ \\~V\\\\\ ,.. ' ~ 23
49
46 --------
30 __/
29
~ ~ :::

6. Dismantling
1. Remove 4 fillister screws (27), then take off motor housing
cover (23).
2. Unscrew carbon holder caps (16) and remove carbon brushes
(17).
3.
Slacken 4 fillister screws (45) and (46), then take off handle
cover (42).
4. Unscrew 3 hexagon socket screws (82) and remove outer
bearing (79) (head). Press slightly on the tool holder (78) to
make sure that it will remain at the percussion mechanism.
5. Pull the percussion piston (76) slightly to bring the percussion
assembly straight out of the in te rmediate bearing (59).
6. Clean percussion mechanism of old grease and, if n ece ssary,
disassemble to replace worn parts. If trouble cannot be re-
removed, return the entire unit to our service centre for over-
haul.
7. Remove intermediate bearing (59) and, at the same time, draw
armature (51) out of motor hous . ing (1).
8. Separate intermediate bearing (59) and armature (51).
Re-assemble in reverse sequence .
7.
Assembly Instructions for Percussion Mechanism
(Designation: Combined Drive Assembly)
The parts of the p erc ussion m ec hanism are made of high-quality
steel, so that they do not we ar considerably during normal duty .
Should disassembling prove necessary after a long period of
application it will be easily carried out.
Fix the percussion mechanism at the drive assembly vertically
in the vice. Then the "Seeger" circlip may be taken out of the
drive assembly by means of a pair of angle pincers (Seeger-
Order-R e fer enc e J 31). The compression spring (75) relaxes and
draws out the ball pivot (72) together with the lo wer retaining
ring (7 3 ). Remove the percussion pi ston (76), the int ermed iat e
Parts List
..,
Order >.
>-<0
Description
~z
Reference
0
I
1-50 MK 2-14-2* 1
motor housing, assembled
1
MK2-14
1 motor housing
3
RJ 16-32 1
circlip "Seeger"
4
state typ e 1
pole hous in g, assembled
and voltage
with winding
Sa SR 1-M5x60 2
hexagon screw
5c
PT 37-8 2
protecting plate
6-12
SA 1-10-1 1
contact holder, assembled
6
SA 1-10 1
contact holder
7 BF17-124 2
bolt
8 BF17-125 4
guide bolt
9
SA 3-7 4
contact spring
10
PT 4-5 4
disc
11
FD 1-1 33 2
compression spring
12
BF 5-1,5x8 2
cotter pin
13
SR5-M4x15
4 countersunk screw
14-22
RJ 21-13-2 1
reversing ring, assembled
14-14e
RJ 21-13-1 1
rev e rsing ring, assembled
14
RJ21-13
1
reversing ring
14a BF 28-14 1
bolt
14b SR 21-44 1
sliding button
14 c FD l-173 1 compression spring
14d BF 9-41 1
bolt
14e FD 1-155 1
compress i on spring
I I
• state type and vo lta ge
shaft (71) and the compression ring (70) upwards. Attention:
The race in the drive assembly must be filled with 19 balls (69)
of
1/s"
(3 mm) (/).
rh
The percussion mechanism may also be taken apart by means
of a pair of straight "Seeger"-pincers (Order Reference J 3).
When doing so, first draw the intermediate shaft (71) out of the
percuss ion mechanism . By the spring tens ion the percuss i on
piston is kept in its centric position. Press the percussion piston
sidewards as far as necessary to remove the " Seeger" circl ip
with a pair of normal p incers . When re-assembling the percus-
sion mechanism mak e sure t ha t the "Seeger" circlips fit com-
pletely in th e ir groov es.
..,
Order
.b
.... o
Description
~z
Reference
0
I I
15 EZ 12-35 2 carbon holder
16 EZ 13-3 2 carbon holder cap
17 EZ 11-43 2 caroon brush
18 SR 15-2 2 countersunk screw
19-22 SA 2-35-1 2 contact
piece, assembled
19 SA 2-35 4
contact piece
20 SA3-8
2
con ta ct bar
21 SR 24-22 4
thr eaded bolt
22 MR2-M3,5
4
he xago n nut, flat
23
PT 28-42 1
motor housing cover
27 SR3-M5x10
4 fillis
ter screw
28
PT 5c-M5 4
protecting plate
29 EZ 7-58 1
cable with safet y plug,
16 ft (5 m) long
30 JS 13-52 1
protecting sl eeve
31 PT 31-21 2
clampi ng bridge
32 SR3-M3,5x20 2 filli
ster scr ew
33
SR3-M4x8
1 earthing screw
34 EZ 1-36a 1
switch
35 SR 8-26 1
screw
36 SA 5-31 1
switch l eve r
37 BF 1-2x14 1
cy li nd rical pin
38 FD 1-149 1
comp r ess ion spring
39 BF 17-122 1
spring hold er bolt
40 SR 23-32 1 gu
ide bolt
41 JS 10-42 1 i
nsu la tion
I

~
1-<0
~z
42-44
42
43
44
45
46
49
50
51
52
53
54
55
56
57
58
59-61
59
62
63-77
63
64
65
66
67
68
69
70
71
72
73
Order
p:.
Description
Reference
a
~
Order
p:.
1-< 0
Descrip t ion
~z
Refer e nce
a
I I
PT 28-26-1 1
handle cover, assembled
74 RJ 16-19 2
"Seeger" cir clip
PT 28-26 1
handle cover
75 FD 1-177 1
compress ion s pring
JS 15-7 1
rubber stop 76 A 12-10 1
percussion piston
MZ 35-28 1 "Fein"-plate 77 RJ 24-25
packing ri ng (0.1 mm)
SR6-M4x15 2
fillister countersunk screw
78 A4-39 1 tool hold er
SR6-M4x30
2
fillister countersunk screw
MZ 35-28 1
"Fein"-plate
79-81 LA 8-104-1 1
outer bearing, assembled
PT9-4
1
end cover
state type
1
armature with winding
and voltage
commutator and fan
EZ 10-56 1
commutator
FL 1-89 1
fan
79
LA 8-104 1 outer be ari ng
81
MZ 31-1 1
oiler
82
SR33 - M6x40
3 he
xago n s oc ket scr ew
83
PT 6a - M6
3 s
pring wa sher
I
PT 8-128 1
disc
RJ 27i-12x28,1 1
Nilos ring
Parts for low tension 42 Volts
LK 1-8 1
ball bearing
RJ 3-15 1
balancing ring
LK 1-35 1
ball bearing
1-50 I MK 2-14-3 1 motor housing, assembled
14-22 RJ 21-14-2 1 reversing ring, assembled
14-14e RJ 21-14-1 1 reversing rin g, assembled
LA 6-146-1 1
intermediate bearing, assembled 14 RJ 21-14 1
rev e rsing ri ng
LA 6-146 1
interm e diate be aring 15 EZ 12-39 2 c arbon hold er
RJ 16-12 1
circlip "Se ege r" 16 EZ 13-5 2 carbon ho l de r cap
A 10-8-1 1
combined drive assembly
A 10-8 1
drive assembly
ZR 1-66x1 2
planetary gear wheel
LK 6-37 2
needle cage
BF 16-54 2
bearing pin
17 EZ 11-41 2 carbon bru sh
19-22
SA 2-53-1 2
contact piece , assembled
19
SA 2-53 2
contact piece
29 IEZ 6-108 1
cable w it ho ut plug
52 EZ 10-62 1
commutator
RJ 15-62 2
snap ring
Accessories
LK 1-39 1 groove ball bearing
LKS-3 19 ball
Z 85 e-24 1 he
xagon att achment
LK 10-24 1 compr ess ion ring
BF 35-7 1 s ec uring pin
WB 6-79 1 int e rm e di ate s haft
JS 19-4 1 rubb er ring
A 11-6 2 ball pivot
MZ60-3 / FK3
1
grease tube
RJ 2-31 2 retaining ring
z 10-8 1 socket w renc h
Diagramm for the destination of favorable time of tightening action
Use Univer sal Gre 0 se type Sst 1
1 .-, s t~a d r.f ot rr->r t·/ r) .:;- ~ ; o r ea sel
I High Tensile Screws
J~
,..
""""'""
..__
,.,..
~
"" ~,..
Example
r-- I-
<.o
- -
--
r -
--
-
r--- r--
--
_..__
-
II
--
r-
~
·-
-
.-
~
I !
.....
,..
""
32
Standard Screws
28
II
/J
.---
..--
~ j'
-
l _I
I
-·
-
-·
- ·-
-
~
Itl
I_
~
·-
12K
I-'
;1~~ -
,,
.Vl
I / :
~
I I
I I
I
' time
of tightening
-
action
-
0 5 10
75 ( seconds)
Hard Base: p. ex . Screws and Nuts with wash er s DIN 125
---- Elastic Base: p. ex . motor car rims, spring washers, stay bolts, extens i ons
Soft Base: p. ex. Wood-, Lead- or Fibre Washers, Packings