MB 106-1

To be handed to the workshop!

Operating instructions

for the Electric Lathe Grinder type MB 106-1

and type 106-1 K {42 Volts}

1. Technical data

Current: 3-phase, 50 cycles

Mode of I Speed of Pulley at motor Pulley at quill Driving belt I

Wheel Net weight grinding I quill Order

I Cb

I Order

R.P.M. Reference in. I mm Reference

external I 110 I grinding 4400 MZ 1-71

I~ MZ 1-22

~~-

internal grinding 11000

I MZ 1-71 I 411. 110 MZ 1-1

2. Construction

The grinding spindle is mounted axially adjustable in a clamp­ing block. It is driven v ia endless belt by a 3-phase motor. The motor is guarded by a filter against dust and dirt and is adjust­able at the clamping block by means of a rocker. The block is slotted for mounting on the slide of a machine tool. The reduced spindle overhang guarantees precise surface finish.

3. External or internal grinding

For these modes of grinding use different pulleys and driving belts in order to attain the highest possible peripheral speed of the grinding wheel. Moreover, external grinding requires a wheel guard. The extension spindles on pages 2 and 3 are used for internal grinding. When replacing grinding wheel flange (63) or extension spindles, MT-socket as well as tapered spindle should be slightly lubricated. When replacing pulley or grinding wheel take care that spindle is not forced, in order t o avoid damage to ball bearings or axial play , which impair the surface finish.

4. Connection

Check connection of socket and earthing conductor (voltage tester) before connecting the tool. Run tool unloaded for a short time in order to check the prescribed direction of rotation and to avoid loosening of the grinding wheel while working. Further, check the running of the driving belt. The tension of the belt must not be too high in order to avoid unnecessary stress on or damage to the spindle bearings. For external grinding mind correct adjustment of the wheel guard.

5. Tending the driving belt

Unscrew hexagon screw (39) and displace rocker w ith motor to adjust the required tension of the belt. Maybe, the guard (45) should be adjusted; for this purpose unscrew h exagon nuts (48, 53).

6. Grinding wheel

For good surface finish use for soft material a hard-bonded wheel

for hard material a soft-bonded wheel Layers of elastic material should be placed between flange and grinding wheel. In doubt, ask your dealer for the correct wheel

BE 170/ e X 1. 65 Printed in Germany

I

I

I

(/) Order I

Guard I in. I mm Refer. in. I mm I lbs kg

I

I I 3 75 I M 10-7-3

361/• 920 --- MZ 4-4 35 15.8 x 15/s X 40 Pis

I 29

I I I I

stating the purpose. At any rate, observe the instructions on "max. peripheral speed of grinding wheels" .

7. Dressing the grinding wheel

Usually the grinder remains fixed on the slide and the grinding wheel is moved uniformly to and fro in front of the dressing tool mounted on the lathe. Avoid free-hand dressing of the wheel as it is inaccurate and also dangerous. Inaccurately dressed grinding wheels impair the surface finish.

8. Dismantling of motor

1. Pull out plug.

2. Take off pulley.

3. Unscrew 4 nuts (21) and remove hexagon screw s (19).

4. Remove ball bearings .

Re-assemble in reverse sequence.

8a Dismantling of spindle

1. Remove cylindrical screws (61) and take off pulley (62) or (92) as well as grinding w heel flange (63) or extension spindle .

2. Unscrew grubscrews (59, 60, 70). 3. Take out spindle shaft.

9. Maintenance and lubrication

1. Motor Continuous use of the motor requires careful maintenance. The rotor ball bearings are protected against dust and dirt and loss of grease by sealing rings . The tool should be cleaned thoroughly after approx. 800 duty hours and old grease should be removed. Rinse ball bearings and r efill 1/3

with fresh, acid-free grease. Clean all electric parts dry and blow or brush away the dust.

2. Spindle We recommend to take spindle apart after 500 duty hours and to clean all parts thoroughly. Rinse ball bearings and re­fill 1(3 w ith acid-free grease.

10. Spare parts

When ordering spare parts, p lease, quote Order Reference or send in sample part.

on E-F 257,5

11 Section A-B

31 30 16

3 2

Spindles for internal grinding

Section C-D

I

~ I -t- Sl

I C\j

50~: ~ I --~

I I

9~ ~- I I M180a

I lJ) .,.. I L _ ,

I I I.,..29¢J

Component Parts

0 0 I z Order .b ~ Description .... Reference 0 rd 0..

z

I

Order :>-, ..., a Desc ri p tio n .... Reference rd 0..

I MK 9-34b-2

I

1 1 stator with winding 56-82 M 180a 1 spindle for external grinding, 3 SR 11-M8x12 2 grubscrew assembled

4-14 EZ 30-5 1 switch, assembled 56 M5-1 7 1 spindle shaft 57 LK 1-48 3 groove b all bearing

4 GH2.-4>"11 1 switch housing 5 EZ 1-6 1 tumbler switch, 3 p oles 6 SR 6-M4x8 2 fillister counte rsunk screw

58 RJ 1-14 1 intermediate ring 59 RJ 13-15 2 threaded sealing ring 60 RJ 13-12 2 threaded sealing ring

7 PT 31-4 1 clamping piece 8 SR 4-M4x20 2 half round screw

61 SR 13-5 2 cylindrical screw 62 MZ 1-22 1 pulley¢ 3" (75 mm)

9 SR 3-M4x8 1 fillister screw 63 M 7-43 1 inner grinding w heel flange 10 JS 10-11 1 insulating plate 11 EZ 6-27 1 cable without plug, 3-pin 12 JS 13-8 1 cable protecting sleeve 13 SR 2-M8x25 2 cylindrical screw 14 PT 5-MS 2 lock washer

64 MS-39 1 outer grinding wheel flange 65 JS 2-70 1 outer p ress-spahn disc 66 JS 2-67 1 inner p ress-spahn disc 67 M 11-1 2 pair of balancing segments 68 SR 10-M6x6 2 grubscrew 69 M4-19 1 fixing tube

15-17a WL 4-82-3 1 rotor, assembled 70 MR 8-15 1 threaded ring 71 SR 5-M3x4 2 countersunk screw

15 WL 4-82-1 1 rotor 16 FL 1-69 1 fan wheel 17 LK 16-2 1 groove ball bearing 72-76 M 10-7-2 1 guard, assembled

17a RJ 1-123 1 supporting ring M 10-7-3 1 guard, assembled 18 PT 11-34 1 ball bearing cover 19 SR 1-M6x120 4 hexagon screw

72 M 9-12 1 flange 74 PT 5-M6 3 lock washer

20 PT 5-M6 4 lock washe r 75 SR4-M6x8 3 h alf round screw 21 MR 1-M6 4 hexagon nut 76 SR 4-M6x12 1 h alf round screw 22 BF21-4x4x20 1 fitting key 23 PT 3-9 1 wash er 24 SR 5-M4x12 1 countersunk screw 25 SJ 3-8 1 air filter 26 SR3-M6x20 2 fillister screw 27 RJ 16-41 1 circlip seeger

FD 5-13 2 spring 28 LA 1-38 1 bearing cover 29 EZ 4-9-2 1 reversing device

EZ 18-15 3 connection cable

77-82 M 10-7-2 1 I

guard, assembled

77 M 10-7-1 1 wheel guard 78 M 32-2-1 1 wheel-guard cover 79 SR 3-M4x6 4 fillister screw 80 M32-6 1 protecting cap 81 PT 1-M5 3 disc 82 SR 1b-M5x10 3 h exagon screw 83 on demand 1 grinding wheel

30-35 LA 3-23-1 1 drive bearing, assembled Parts for low tension (42 Volts)

30 LA 3-23 1 drive bearing 31 LK 16-9 1 groove ball bearing 32 RJ 27a-47x23 1 N ilos-ring

I EZ 31-1b

I

1

I

switch EZ 6-73 1 cable

33 RJ 16-4 1 circlip seeger 34 PT 17-33 1 end cover Accessories 35 SR 6-M5x15 3 fillister countersunk screw 36 M2-1 1 rocker 37 SR 1-M8x25 4 h exagon screw 38 M 1-1 1 clamping block 39 SR 1-M10x40 2 hexagon screw 40 SR 1-M8x40 3 hexagon screw

84 MZ4-4 1 driving b elt z 13-7 1 pin spanner z 11-1 1 hook spanner z 12-4-1 1 spanner M 12-1 1 grinding-wheel balancer

41 MZ 1-71 1 motor pulley Accessories on demand

42-44 M4-2-1 1 fixing tube, assembled

42 M4-2 1 fixing tube 43 RJ 26-6 1 threaded plug 44 BF 1-5x12 1 cylindrical pin

85-87 M 6-33-1 1 attachment with collet, 1/ •" (6 mm)

85 M6-33 1 spindle attachment 86 MZ 10-14 1 collet, 1/ •" (6 mm) 87 MR 17-6 1 nut

45-55 M 10-44-1 1 guard for belt, assembled 88-90 M 6-23-1 1 grinding spindle attachment

45 M 10-44 1 guard for be lt 45a BF 29-71 1 fix ing angle 46 SR 7-42 1 stud bolt 47 PT 1-MlO 2 disc

88 M6-23 1 a ttachment JS 2-73 2 wash er

90 MR 9-25 1 threaded ring

48 MR 1-MlO 2 h exagon nut 49 SR 7-43 1 stud bolt

For attachments

50-55 BU 4-35-1 1 guide bush, assembled 91 SR 16-25 1 grub screw

MZ 1-1 1 pulley, 11/s" (29 mm) cp 50 BU 4-35 1 guide bush 51 SR 1-M6x12 1 hexagon screw

Z 7-SW 19 1 single end spanne r Z8-11 x 14 1 double end spanner

52 PT 1-MlO 1 disc 53 MR 1-M10 1 h exagon nut 54 BF 17-104 1 guide bolt 55 MR 1-M12 1 h exagon nut