Technical Manual; Part List - Desoutter MC51-20 Bedienungsanleitung

Tools required for complete disassembly / Reassembly
Item Part number
Special wrench of 40 6159606900
Special wrench of 48 6159605380
Pin wrench 6158020110
The other tools are standard tools used in mechanical workshops
Disassembly
1- disconnect the cables from the tool
2- disassembling the output shaft
• lay the machine horizontally on a table
• remove the retainer pin from the output shaft
• be careful of the spring reaction
3- disassembling the motor
• place a special wrench of 48mm across flats in a vice
• the machine should imperatively be placed in the special
wrench on the flats which are closest to the motor
• untighten the motor with a special 40mm wrench - left-hand
thread
• heat the casing with a torch if necessary
• remove the coupling sleeve and the drive pinion
4- disassembling the reduction gear stages
• place a special wrench of 48mm across flats in a vice
• the machine should imperatively be placed on the flats of the
gear ring of the first 2 stages
• using a torch, heat the connecting casing of the motor
• using a special wrench of 40mm across flats, untighten the
motor - left-hand thread - and its connecting casing
Complete reassembly
Reassembly does not pose any problem in particular.
It is important to follow all the indications which are provided, in the form of pictograms, on the drawing opposite.

Part list:

Item PT N° Qty Description
1 6155210720 1 Output shaft 1/2''
2 6156811000 1 Spindle spring
3 6157901390 1
Pin
4 6152250490 1
Bit holding cap
5 6157850670 1 Needle socket
6 6155704360 1 Flange
7 6155952330 1
Spring guide
8 6156890350 1
Circlip
9 6157580570 1 Bearing
10 687.52 1 Circlip
11 6156581630 1 O-ring
12 6156870350 1
Circlip
14 6157900520 6 Pin
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TECHNICAL MANUAL

Special wrench
• place the special wrench of 40mm across flats in the vice
• using the special wrench of 48mm across flats, untighten the
connecting casing of the motor after heating it with a torch
• remove washers
• extract the planet cages of the 1st and 2nd stages
• the machine should imperatively be placed on the flats of the
strain gauge
• using a 48mm wrench, untighten the gear ring of the first
2stages
• extract the 3rd stage planet cage
• using a 48mm wrench, untighten the 3rd stage gear ring
• extract pins, planet wheels and needle bearings from the
planet cages
5- disassembling the cap from the flange
• remove the circlip from the flange
• press the cap out of the flange
• remove the circlip from the cap bearing
• remove the cap bearing
• to remove the spring guide, extract the cap circlip
Item PT N° Qty Description
15 6157880160 12 Needle bearing
18 6154760620 1 Gear ring
20 6155664830 1
Connecting casing
22 6155751020 1
Coupling sleeve
23 6153941640 1 Motor
24 6154751360 1 Planet cage
25 6157901200 3
Pin
26 6154701010 3
Planet wheel
27 6154760640 1 Gear ring
28 6154700940 6 Planet wheel
29 6154751140 2 Planet cage
30 6156420650 3
Washer
31 6155800920 1 Drive pinion
MC51-20
Meaning of the pictograms
Left-hand thread
When reassembling, apply the recommended glue
When reassembling, tighten to the required torque
When reassembling, lubricate with the required grease
113
10
+0
Ø49
- 0,10
8
Ø51
6
Ø28
Ø3 4H11
1/2"
15.5
50 8
Ø12 m6
6159935550-02
English
3 / 8
366
R9
Ø43
M8 6H
35
±0,15
35
±0,15
35
±0,15
53
M8 6H
20°
45