Fein MOt 6-13 User manual

MOt 6-13
To be handed to the workshop
Operating instructions for the
Pneumatic Hack Saw type MOt 6-13
1. Technical Data
Type
Output
Incisions
H.P.
per min.
MOt6-13
I
I
1.5 330
2. Construction
The Hack Saw type MOt 6-13 consists of th e gear head , the com-
pressed air motor with regulator, economy oiler and va l ve.
All turning parts run in anti-fricUon bearings. The gate of the
crank and the connection rod are polished. The saw blade is
fixed on the connection rod by means of the adjusting bolt (69a).
The air motor operates on the sliding vane principle. The best
efficiency of the motor is under ·a working pressure of 6 atmo-
spheres (86 lbs./sq. in.). The centrifugal governor prevents the
overturning of the air motor. For the long working life of the air
motor it is important to pay attention to correct function of the
automatic economy oiler.
3. Taking tool into service
The centrifugal governor is adjusted for a working pressure of
86 lbs./sq. in. (6 atm.). For other wor k ing pressures the ce ntrifu-
gal gov e rnor must be regulated for 360 incisions (no load) per
min .
Attention! Before connecting up the hose should be blown clear.
Mi . nimum hose diameter
1/2" (13
mm)! The supply pipes must be
as large as possible and the minimum diameter of the openings
on couplings must be
5
/16" (8 mm) .
The oil tank mounted in the handle must be filled and the jet
must be adjusted .
4. Working
To avoid shocks when cutting, the work piece must be fixed
strongly . Thereby the saw blade can not be damaged .
Wh en c utting, the saw blade has to be cooled by suds or oil.
Choice the clamping de vic e and the saw blad e accord i ng to .
kind and size of the work pi e ce.
BE 111/e BXEW 8. 69 Printed in Germ a ny
Course
Air
consumption Wo r king Pressure
in. I
mm per min. P.S.I. atm .
I 23/s I
60
I 49
cu. ft. (1.4 m3) I
90 6
I I
I I
5. Application of the Clamping Devices
For pipes up to 4" (100 mm) use the clamping dev i ceS 14-10-1.
The clamp i ng chain (14) is to be lead around the pipe and must
then be fixed in the hooks of the strap. By aid of the curved
handle (6) chain has to be tightened. Now set the hack saw on the
supporting bolt (20) of the clamping head (19). The clamping
head is adjustable and can be swtvelled (for obl i que cut).
For profiles up to 270 mm (10") height use the clamping device
S 14-20-2. This construction conforms to a parall el vice. For
larger pipes of 6- 14" OD (150 to 350 mm) use clamping device
S 14-37-2 and a saw blade of 181 /2" (465 mm) leng t h. Instead of
the handle (99) you can fix a saw blade guide S 14-35-2 at the
gear head of the hack saw. (See our leaflet "Off. Bl. 428".)
Support S 14-25-1 i•s used for free hand work i ng and especially
. for cutting of corrugated iron. This support is fi xe d at the gear
head and in the bor e of th e gear housing co ve r (73) by removing
th e two sc rews (101).
6. Maintenance and Lubrication
It is advisable to clean the tool by pouring a l it tle paraffin di-
rectly into inlet socket (159) at Least once a week , before taking
it into use , and whene ve r it h as been out of serv ice for an y
le
ngth of time. Th en allo w sa w to run for about 10-15 se c onds
to flush the paraffin and all accumulat ed dirt ou t of the motor.
After flushing, pour a little oil directly into the motor intake
socket, as this will improve its performance. The automatic
economy oiler fitted takes over the general lubr i cation in ser-
vice.
Trouble in operation ma y be due to the follow i ng causes: insuf-
ficient air pressure, poor lub r ication or lub ri ca til on failed alto -
ge
th er , mainly b eca us e oil has hard ened du r ing prolonge d
storage, slid e v alve 114 sticks due to hardening de posits or ha s

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Parts for clamping device S 14-37-2
(for
pipes from 6" to 14" [150-350 mm] dia.)
0 £
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Descrip tion
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Reference
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1, 11, s 14-37-1 1
yoke, assembled
12, 14
2, 5, 16
SR 21-41-1 1 screw, assembled
3 LK 10-19 1 pression ball ring
4
MR l-M12
I 2
hexagon nut
5 BF 17-160 1
pin
6
PT 1-M6 1
washer
7 BF 5-1,5x10 1 split pin
8 BF 31-8 1 clamping chain, 1000 mm long
9 SR 23-51 1 bearing bolt
10
PT 1 -M 12 1
washer
Clamping Device S 14-37-2
(
Parts for Saw Blade Guide S 14-35-1
Section A-B 12
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Description
Reference
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aTr,-- -21
rm;rtt-f'rt-- -- 11
Is14-35-1 I 1-8 1
guide bow, assembled
9
MZ 3-30 1
guide pulley
16
18 19 20
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Section C-D
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-",..,;..,..,
Saw Blade Guide S 14-35-2
10 JS 16-38 2 rubber ring
11
MZ 3-31 1 guide pulle y
12 BF 5-3x15 2
split key
13 SR 4-M5x50 1
screw, half-round
14 MR2-M5 1 hexagon nut, flat
15 MR6-M5 1 h ead nut
16 FD 2-20
I
1 tension sp ring
17
MZ 25-35 1 I
fixing bow
18 BU 10-46 2
eccentric sleeve
19 1
PT 2-26 2
washer
20 SR 35-M8x30 2 h
exagon socke t screw
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Parts List
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Description
s a
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Reference
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s a
Description
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Reference
20,21,37
GH 6-53-2 1
gear housing, assembled
99 MZ 21-6-2 1
ha nd le assembled
42-79
81-83
87-90
100 SR1-M8x15 2
hexagon screw
101
SR35-M8x35 4
hexagon socket screw
94-95
111 MO 7-89-1 1
piston
101
20 GH 6-53 1
gear housing
21
SR 20-33 1
end screw
112
MO 7-90 1 cy
linder
113
MO 7-91 1
cylinder lin er
114
MO 7-92 4
slide
37 LK 1-5 1
ball b earing
38 ZR 2-19x1,25 1
countershaft pinron, 18 teeth
115
MO 7-86 1 flange cover
117
MO 7-93 1 front
side plate
39 ZR 10-25 1
gear wheel, 46 teeth
118 SR2-M6x15 4
screw
40 BF 21-4x4x8 1
key
119
MO 7-50 1
hood
41
LK 1-5 1
ball bearing
120
MO 7-94 1
front distance ring
42 ZR 13-16 1
bevel pinion, 10 teeth
43 LK 6-21 1
needle · bearing
121
MO 7-95 1
rear distance ring
122
MO 7-48 1
disc
43a PT 8-149 1
disc
44 LK 10-11 1
ball race
45
LK8-3
20
ball
46 LG 3-9 1
bearing shell
47 LK 6-22 1
needle bearing
48 BF 23-17 1
key
49 ZR 1-24x1,25 1
gear whee l, 34 teeth
50
MR9-4
1
threaded ring
51
RJ 24-23
washer
52 BU 10-34 3
eccentric bush
53 SR33-M8x20 3
hexagon socket head screw
53a
PT 5 -M 8 3
securing washer
123 LK 1-31 1
ba ll bearing
124 MO 7-96 1
rear bearing disc
125 LK 1-9 1 ball bearing
126 RJ 16-18 ' 1
seeger circlip
127
MO 7-97 1
regulator housing
128
MO 7-98 1
segment bridge
129
MO 7-99 1
regulator pin
130
MR 1-M5 2
hexagon nut
131
MO 7-100 1
regulator spring
132 MO 7-101 2
regulator weight
133
MO 7-102 1
oiler
134 MO 7-103 1
oiler screw
54 0 6-9 1
crankshaft
55 LK 16-4 1
ball bearing
56
PT 19- 31
1
bearing plate
57 RJ 16-3 1
Seeger circlip
58 ZR 14-43 1 b
eve l pinion, 26 t ee th
59 BF21
-5x5x 10 1
key
135 MO 7-104 1
joint ring
136 MO 7-71 1
regulating screw
137
M07-72
1
pl ug screw
138
MO 7-73 1
joint ring
139
MO 7-105 2
pin
140 2
rivet
60 MR9-5 1
threaded ring
61 LK 6-23 1
needle bearing
150
MO 7-106 1
valve housing
151 MO 7-107 1
bushing
62
SR 5-M5x16 3
screw
62a RJ 24-22
washer
63 s 14-16 1
crankpin
64
PT 5-MlO 1 I
spring washer
65
MR2-M10
1 h
ex agon nut
152
MO 7-78 1
nipple with fixing ring a nd sieve
153
MO 7-80 2
pack ing ring
154
MO 7-79 1
joint ring
155
MO 7-108 1 pin
156
MO 7-109 1 ball
66 s 14-13 1
slide block
157
MO 7-110 1
ball
67-70 s 14-12
-1
1
connecting rod, assembled
71
MR 1-M8 2
nut
158 MO 7-83 1 compressi.on
spring
159
MO 7-84 1
connection piece
72 s 14-11 1
thrust plate
73
PT 29-17 1
gear housing cover
75 s 14-14 1
guide p iece
Accessories
75a
s 14-39 1
guide piece
76
MZ 3-25 2
guide roller
77 WB 13-39 2
bearing pin
z22-6 I 2
saw blade
Z 8-10x14 1
doub le ended .spanner
78 BU 1-158 2
sleeve
z 10-4 1
hexagon socket wrench
79 LK 1-4 4
ball bearing
Z 8-19x22 1 do
uble ended spanner
81 BF 1-3x18 2
cy lindri cal pin
82
DJ 4-30 1
felt gasket
82a s 14-24 2
oil retainer
83
MZ 31-20 1
oiler
87-90 WB 12-15-1 1
locking device, assembled
94 BF 4-3 2
screw
95
PT 22-49 1
cover plate
96
SR ;33-M6x30 3
hexagon socket h ea d scr ew
97
DJ 11-6x10 3
joint ring
I

Clamping Device S 14-10-1
eve
16 17 18
Clamping Device S 14-20-2
Parts for clamping device S 14-10-1
(for pipes up to 6" [150 mm])
ci
£
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Order
-;:;
Descrip tion
s
Reference
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a
1,2,15 s 14-17 1
yoke
3 BU 7-54 1
guide bush
4 s 14-19 1
tightening bolt
5,6
I MZ 19-28-1 1
bow with nut
7, 12 BF 30-27-1 2
plate, assembled
8 BU 1-144 1
spacer bush
9
RJ 1-88 2
interm edi • ate collar
10 BF 2-7x46 2
parallel pin
11
BU 1-145 2 spacer sleeve
13 BF 2-7x26 1
distance p in
14 BF 31-3 1
clamping chain
19-23 T 5-9-1 1 clamping head , assembled
19 T 5-9 1 clamping head
20
SR 23-28 1 supporting pin
21
BF 1- 3x8
1
parallel pin
22
PT 1-M14 1
washer
23
MR 1-M14 1
hexagon nut
Parts for clamping device S 14-20-2
(for profiles)
ci
£
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Order
s
-;:;
Descript ion
R efe renc e
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a
1,3,4,25 BU 1-169-1 1
clamping t ube, assembled
2
DJ 1-42 1
felt ring
5
SR 22-24 1
thrust spindle
6,24 MZ 19-28-1 1 handle with nut
7 BF 3b-5x24 1 parallel piln
8
PT 35-27 1
protective cover
9 LK 7-26 1 thrust bear i ng
10 s 14-26 1
clamping lug
11
s 14-27 1 clamping lug
12 PT 8-114 2 guide plate
13 SR 1-M12x18 2 hexagon nut
14 BF 3a-4x25
1
self-locking dowel pin
15 BF 3f-8x40 2 toggle pin
16
SR 1-M6x50 2 hexagon scr ew
17 BU 1-147 2 spacer sl eeve
18
MR 1- M6
2
hexagon nut
19-23 T 5-9-1 1
clamping head, assembled
(see under S 14-10-1)

worn too far, oiler too full or clogged, ball bearings worn or
damaged.
Remedies: check air pressure, clean motor with paraffin and
lubricate well. In ca · se of doubt, or if trouble persists, return
machirte to the distributor for repair.
The motor is automatically lubricated by the economy oiler
built into the handle. Before the start of each working shift, Ml
the oiler with thin-flowing resin-free machine oil (SAE 10). One
filling will last for one normal working shift. Oil feed is easily re-
gulated . Take off enq screw cap to expose the control screw ,
tighten screw to reduce oil feed, slacken screw to increase it.
Generally, half a turn will suffice. Should the oiler become clog-
ged, take out the screw, and clear the bore which then becom es
visible with a piec e of wire. If the full oi'ler is connected to the
compressed-air line, the oil must clearly be seen to bubble
under the pressure when the filler screw is open.
All sliding faces of the crankshaft should be lubricated once a
week via the ball oiler on the housing.
It is advisable to renew the gear grease approx. every 300 dut y
hours . We recommend our proveri special gearbox grease FG 11.
The ball bearings should be cleaned approx. every 900 duty
hours and th en be repacked with fresh Fein FK 3 ball bearing
grease. To prevent overheating of the bearings, fill only about
1
/a of the space between races.
Correct grade and quantity of grease is essential for good lubri-
cation and to prevent damage· through o ve rheating, and th e
data given in the table below should, ther efore , be adhered to :
Gr e ase
I Quantity I
Tubes
Holding
Order No .
approx.
FG 11
for gearbox
31 /2 oz.
MZ 60-3/FG 11
23 /4 oz.
100 g 80 g
FG 3 for bearings MZ 60-1/FK 3 1
12 oz.
10 g
No guarantee claims can be e nt erta~ n e d in respect of any d am -
age due to insufficient maintenanc e and lubrication .
7.
Dismantling Machine
Only by expert fitters.
a) Motor
First separate saw h ea d from motor by re mo vi ng th e 3 screws
on the dri ve casing . N ext pri ze ap art casing (119) and take .
off the 4 screws (118). Take off flanged cover (115). Take off
governor housing (127), unscrew from pi . ston (111), complete
governor, consisting of flanged sleeve (128), governor spindle
(129), hexagon nut (130), governor spring (131), dowel pins (140)
and governor weights (132). Next, ta ke out rear b ea ring plate
(124) with ball bearing (125), circlip (126) an d rear spacer . ring
(121). Slides (114) w ill now come away to the rear. Notched pins
(1 39) remain in cy lind er (112). Lightly tap front (pinion) end of
piston (111) against a wooden base to drive piston out to the
rear. Take off from the front bearing plate (122) with ball bear -
ing (123), front side plat e (117) and front spacer ring (120). Tak e
end scr , ew cap (159) and nippl e (152) off th e valve, taki ng
care not to lose the compression springs (158) which may snap
away if not held . Balls (156 and 157) are now loose and will drop
out of valve hou sin g (150). Pull rotar y sl eeve (151) from valv e
housing, then un~crew housing from oiler (133). Unscre w oiler
from governor housing (127).
b) Drive and Push Rod
Take off g ea rs (39) and (38) , then slac ke n th e 3 socket-head
screws (53) and t ake off, to the front , bevel gear (42) w ith th re ad-
ed ring (50), gear (49), bearing sleeve (46), needle bear ing (47),
ball race (44), balls (45) and needle bearing (43), comple te wit h
their washers. Next, t ake off gearbo x cover (73). Locating guides
(75 and 75a) can easily be driven out f rom the opposite sid e.
Drive out pins (81), then tak e off bearing t runnion pins (77), ball
bearing (79), sle eves (78) and guide rollers (76). Now p ull out to
the top drive arm (6 9) with gate (67). Take care not to lose fe lt
washer (82) and scraper (82a). Sliding shoe (66) lies loosel y in
gate (67) . After slackening hexago n nut (65), the crankpin (63)
can be pushed out of crankshaft (54) .
Nex t take off the t hree countersunk screws (62) and pull off
bearing plate (56) with shouldered bearing (55), circlip (57),
crankshaft (54) b evel gear (5 8) and thr eaded ring (60). To dis-
mantle these parts further, take off ring (60). Take care not to
lose washers (62a).
Assembly
Assemble in r everse s eq uenc e, taking c are that front side plate
(117) and rear bea ri ng plat e (124) are correctly locat ed in rela-
tion to th e cy linde r (notched pins 139 must engage in their mat-
i ng bores) and do not forget felt .w asher (82) and scraper (82a).
Setting Governor
The secondary-air speed governor works on the centrifugal
force principle. Depending on the setting of th e spring, the
we ights will swing outwards to a greater or less er degree.
To set the gov e rnor , unscrew it from piston (111), then turn the
two hexagon nuts on the governor spi ndle to adjust the spring
force as follows:
unload spring ('/2 to 1 turn of nut) to reduce strok ing rate
tight en spring (1 12 to 1 turn in opposite dire c tion) to inc r ea se
stroking rate
At a service pressure of 87 lbs ./sq . in. (6 atm.), the unlo ade d
saw blade should stroke at the rate of 360/min. To check, take
off screw cap (21) at top of gearbo x, and then measure c rank-
s haft (54) r evo lu t ions, which equals working strokes, at t he
c rankshaft end now e xpos ed.
Setting Bevel Gears
To correct bevel gear backlash, slacken the three socket-head
screws (53), then turn ecce ntric flanged bush (52) to set correct
play; finally tight en the screws again fir mly.
(