Strobel 310D-R User manual

For the professional user
Für den professionellen Anwender
Mechanikeranleitung
Class:
Klasse:
Dated:
Stand:
310D-R Ausf. 16
3100D-R Ausf. 3
Spezialmaschinen GmbH
Mechanic‘s Instructions

Im Zeichen der Qualität
ou nd the Strobel trademark on every Strobel
machine leaving our works. And with good reason.
This symbol is a guarantee of the high quality of
our products. Quality which creates trust – trust
in our technology, our service and, not least of all,
in our good name.
ie nden die Strobel-Schutzmarke auf jeder
Strobel-Maschine, die unser Werk verlässt.
Und das aus gutem Grund. Denn dieses Zeichen
garantiert Ihnen die hohe Qualität unserer
Produkte. Qualität, die Vertrauen schafft – in unsere
Technik, unseren Service und nicht zuletzt in unseren
guten Namen.
S
Y
The sign of quality

trobel clients know that they can expect a particularly
high standard of performance from our company and our
machines. Now you have settled for one of our products.
For us this is a source of encouragement and of obligation
to Justify your trust.
If you wish to prot from the performance and efciency of
your Strobel machine as long as possible, exact handling
and thorough care is necessary. For this reason we kindly
request that you read the operating instructions closely.
It provides all the information you need for trouble free
operation.
And if you do happen to need a spare part the enclosed
spare parts list gives a complete overview. It is clearly
classied according to components so that you can nd the
required part quickly and easily. In order to avoid errors we
request you to quote machine class, machine number and
part number completely on your spare part order.
We wish you lots of success in your work with your new
Strobel machine.
S
A decision with future
Spezialmaschinen GmbH

1 MA_310D-R_3100D-R_A16-3_181015_en
Mechanic’s Instructions
STROBEL Classes 310D-R and 3100D-R
Contents
1General notes on safety............................................................................................5
2General .....................................................................................................................7
2.1 Operating instructions.....................................................................................7
2.2 Class description, machine number and reference position left/right.............7
2.3 Machine applications......................................................................................7
2.4 Technical data................................................................................................8
2.5 Adjusting instructions in brief..........................................................................9
3Notes on repair and adjustment..............................................................................10
3.1 Stitch plate fitting..........................................................................................10
3.1.1 Removing the stitch plate (Fig. 1)....................................................10
3.1.2 Fitting the stitch plate.......................................................................11
3.1.3 Adjusting the stitch plate..................................................................11
3.1.4 Adjusting the needle (Fig. 2)............................................................11
3.1.5 Exchanging the needle slide plate (Fig. 1).......................................12
3.2 Adjusting the needle lever ............................................................................13
3.2.1 Adjusting the needle lever path (Fig. 2) ...........................................13
3.2.2 Side adjustment of the needle lever (Fig. 2) ....................................13
3.3 Loop stroke...................................................................................................14
3.3.1 Setting the loop stroke (Fig. 3).........................................................14
3.4 Hook.............................................................................................................15
3.4.1 Removal and fitting of the hook (Fig. 2 and Fig. 3)..........................15
3.4.2 Adjusting the hook to the needle (Fig. 4) .........................................15
3.4.3 Removal and fitting of the reel capsule (Fig. 5)................................16
3.4.4 Thread tension – reel thread (Fig. 6)................................................16
3.4.5 Setting the reel capsule venting (Fig. 2)...........................................17
3.5 Side presser .................................................................................................17
3.5.1 Adjusting the side presser (Fig. 2) ...................................................17
3.6 Side plunger .................................................................................................18
3.6.1 Adjusting the side plunger (Fig. 2) ...................................................18
3.6.2 Cams (Fig. 2 and Fig. 3) ..................................................................18
3.6.3 Adjusting the thread tension venting................................................18
118.05.07
118.05.05
118.05.06
121.00.02

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3.7 Feed movement............................................................................................19
3.7.1 Feed dog (lower feed) (Fig. 7)..........................................................19
3.7.2 Feed dog (upper feed) .....................................................................19
3.7.3 Adjusting the feed movement (Fig. 8)..............................................20
3.7.4 Adjusting the upper feed (Fig. 2 and Fig. 9).....................................20
3.8 Presser plate ................................................................................................22
3.8.1 Adjusting the presser plate (Fig. 7)..................................................22
3.9 Plunger.........................................................................................................23
3.9.1 Removing the plunger (Fig. 11)........................................................23
3.9.2 Fitting and adjusting the plunger (Fig. 11 and Fig. 13).....................24
3.9.3 Adjusting the plunger regulation (Fig. 11, Fig. 12 and Fig. 13) ........24
3.9.4 Adjusting the digital stitch depth display (Fig. 13)............................25
3.10 Interval gear..................................................................................................26
3.10.1 Adjusting the interval gear (Fig. 14) .................................................26
3.11 Spot tack.......................................................................................................28
3.11.1 General............................................................................................28
3.12 Pneumatic venting........................................................................................30
3.12.1 General............................................................................................30
3.12.2 Setting the lifting ..............................................................................30
3.13 Sewing drive.................................................................................................30

3 MA_310D-R_3100D-R_A16-3_181015_en
Appendix
Circuit diagrams
Electric mains, sewing drive - sewing machine lamp:
258.00.35 Mains connection plan cl. general
(AB611A with/without sewing machine lamp gen.)
Connecting the sewing machine:
258.21.66 Electrical connection plan cl. 200, 300
258.10.16 Electrical wiring diagram – Plunger lowering
Cl. 218D-TP as of version 3 and Cl. 325-40D-TP as of version 9
259.00.63 Pneumatic circuit diagram cl. 310D-R, 3100D-R
259.10.63 Pneumatic construction circuit diagram cl. 310D-R, 3100D-R
Connecting spot tack:
258.10.26 Electric wirinjg diagram cl. 310D-R, 3100D-R
Connecting digital display:
258.21.24 Electric connection diagram cl. 170, 560, ZM
Subject to change without prior notice

4 MA_310D-R_3100D-R_A16-3_181015_en

5 MA_310D-R_3100D-R_A16-3_181015_en
1 Every person in charge of setting up, operating, servicing and repairing the
machine must first read and understand the operating instructions and
particularly the safety instructions before starting up the machine.
General notes on safety
Failure to comply with the following safety instructions can lead to bodily
injury or damage to the machine.
1. The machine must only be operated by persons familiar with the relevant
operating instructions and who have been instructed accordingly.
2. Before commissioning also read the notes on safety and the operating
instructions of the sewing drive manufacturer.
3. Only use the machine in the intended manner and never without the
provided guards. Always observe the pertinent safety regulations.
4. Switch off the main switch or pull the power plug for threading, changing
the reels, exchanging sewing tools such as needle, gripper, needle plate,
transport devices, possibly cutter and cutting block, for cleaning and when
leaving the workplace as well as for maintenance.
5. General maintenance tasks may be carried out only by properly trained
persons in accordance with the operating instructions.
6. Repair work, retrofitting and maintenance may be carried out only by
technicians or specially trained personnel.
7. When servicing or repairing pneumatic equipment, the machine must be
disconnected from the pneumatic supply. Exceptions are only allowed for
adjustment work and tests of functionality performed by specially trained
technicians.
8. Only specially qualified technicians may work on the electrical equipment.
9. It is forbidden to work on electrically live components! Exemptions are
covered by the EN50110 (DIN VDE0105) regulations.
10. Any retrofitting or alterations to the machine may only be performed under
strict compliance with all pertinent safety regulations.
11. Only use our approved spare parts when servicing and/or repairing the
machine.
12. It is forbidden to operate the sewing head until it is determined that the
entire sewing unit complies with EU provisions.
13. It is essential that you observe and follow these instructions as well as the
generally valid safety regulations.

6 MA_310D-R_3100D-R_A16-3_181015_en
14. Warning instructions given in the operating instructions that pertain to
especially dangerous parts of the machine must be indicated at these
positions using a safety symbol.
Warning instructions given in the operating instructions that pertain to
special injury hazards for operating personnel or technicians must be
indicated at these positions using a safety symbol.

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2
2.1
General
Any person involved in the installation, operation, maintenance and repair of
the machine must have read and understood the operating instructions and
mainly the safety instructions before starting the machine.
Operating instructions
2.2
For side-referenced descriptions (right, left), the operating side of the machine
is the starting base.
The class identification (type) is in front, the machine and model number (after
the dash) is on the upper right under the cover on the housing.
Class description, machine number and reference position
left/right
2.3
Class 310D-R
Machine applications
Two thread blind stitch double lock stitch machine for trimming the inside lining
up to 8 mm under the lining fold in the jacket hem.
Class 3100D-R
Two thread blind stitch double lock stitch machine with extended upper and
lower arm for trimming the fabric hem 6 mm (selectable 4 or 8 mm) underneath
the hem edge of jackets.
The enclosed spare parts enable to select the execution of both work
sequences for the machines.
You will find variable sewing tools under point 7 of the operating instructions.

8 MA_310D-R_3100D-R_A16-3_181015_en
2.4
Recommanded rated speed 1300 min-1
Technical data
Motor power 550 W
Toothed belt pulley/machine Z = 38
Toothed belt profile HTD 5M-9
Stitch length-upper feed 3 - 6 mm
(depend on fabric)
Kind of stitch: two thread blindstitch lockstitch
Stitch type 313
Needle system GROZ-BECKERT 1828 E
Needle size 80
Thread polyester continuous filament
Thread size 120/2
Air pressure 6 bar
Average air consumption Cl.310D-R 25 l/h
Cl.3100D-R 20 l/h
Foot print 0.5 m x 1.1 m
Noise:
Average noise level at a speed of
n = 1300 min-1: LpAm 75 dB(A)
Noise test according to DIN 45635-48-1 KL3

9 MA_310D-R_3100D-R_A16-3_181015_en
2.5 Plunger highest position to the needle needle point 4 mm before centre
plunger at 6 mm transport length
Adjusting instructions in brief
Plunger stops to the needle needle point 5 mm after centre plunger
Transport length lower transport 2 – 6 mm
Transport length upper transport position on (1) (Fig. 9) 2 – 5 mm
 position on (1) (Fig. 9) 4 – 7 mm
Transport start at 6 mm transport length needle point 3 mm
after centre plunger
Transporter position back 4 mm air to the presser plate
Upper transport start to lower transport synchronized
Presser plate lift (basic position) 5 mm
Presser plate lifts needle point 10 mm before centre
plunger (return path)
Venting value between presser plate 11 mm
and stitch plate
Side presser lift 4.5 mm
Side plunger path 4.5 +0.2 mm
Upper dead point side plunger cam needle point 7 – 8 mm before side
plunger centre
At stitch plate contact of the plunger crank movement results
stop levers and response of the upper 0.15 mm above thread M5,
dead point of the side plunger cam upper plunger lies against
fabric support surface
Position of the eccentric bolt 46° to the vertical
Pusher position horizontal
Interval stroke 4.8 ±0.2 mm
Setting value of hook point 2 ±0.2 mm
to the needle eye
Distance guide block to 2 mm
plunger guide plate
Loop stroke 2 mm right needle position
Number of spot tacks 2 – 4 stitches

10 MA_310D-R_3100D-R_A16-3_181015_en
3
Notes on repair and adjustment
ATTENTION! Danger!
Observe notes on safety and the operating instructions
prior to maintenance and repair work.
If these are not observed serious damages can occur.
3.1
Stitch plate fitting
Attention!
Disconnect machine from the mains!
Stitch plates are adjusted at the works and can be exchanged without
problems.
The exchange of the needle slide plate does not require any additional
adjustment either.
3.1.1 1. Disconnect machine from the mains. Removing the stitch plate (Fig. 1)
With pneumatic venting, plunger, presser plate and feed dog are vented
(also side plunger, presser and feed dog)
2. Remove needle
3. Pull off lower arm cover
4. Venting of plunger, presser plate and feed dog with knee lever
5. Slide screwdriver between lower arm and leaf spring.
6. Fold machine to the back release bolt (1) and remove stitch plate from the
machine.
Fig. 1

11 MA_310D-R_3100D-R_A16-3_181015_en
3.1.2 Fitting is carried out in reverse order.
Care must be taken that the side transporter and the levers for the side plunger
and the side presser are again in the correct position.
Fitting the stitch plate
3.1.3 The theoretic needle radius of 43.6 mm should be smaller by 0.15 – 0.20 mm at
the right channel of the needle slide plate and 0.01 – 0.04 smaller at the left
channel of the needle slide plate, that means is, a satisfactory needle is lifted at
both needle channels. At the left needle channel it is important that the needle
is in contact with the needle channel for the length of at least
8 – 10 mm (measured from the point). These values are set at the works via the
eccentric bush in the head, checked with a dial gauge and then the bush is
drilled. The base of the stitch plate radius must be lower than the theoretic
needle radius between 0.02 and 0.15 mm, that means that the needle has air.
Adjusting the stitch plate
3.1.4
Adjusting the needle (Fig. 2)
Attention!
Disconnect machine from the mains!
Care must be taken that the needle at the left penetration is in contact with its
right side to the left side of the needle slide plate separation web 0 to 0.1 mm.
This dimension can be set by sliding the needle slide plate. The needle must
then at the right penetration run past the right side of the separation web by
approx. 0.2 +0.1 mm.
This over stitch width is set with the setting ring (14) which sits on bolt (15) of
the needle lever.

12 MA_310D-R_3100D-R_A16-3_181015_en
Fig. 2
3.1.5 The needle slide plate is mounted at the underside of the stitch plate. It can be
removed by releasing the cheese-head screw (2).
Exchanging the needle slide plate (Fig. 1)

13 MA_310D-R_3100D-R_A16-3_181015_en
3.2
Adjusting the needle lever
Attention!
Disconnect machine from the mains!
3.2.1 After removing the head hood and releasing the hexagon nut (11), the needle
lever path can be corrected by turning the eccentric bolt (10).
Adjusting the needle lever path (Fig. 2)
The distance of the hook point (at normal loop stroke and position above the
needle centre) to the end of the needle eye, pointing towards the hook point,
must be 2 ±0.2 mm.
3.2.2 The needle lever is adjusted in such a way, that it has a clearance of
0.1 +0.1 mm to the right side of the fabric support surface (of the side presser)
at the deepest left needle lever position. This dimension can be set by sliding
the fork (12).
Side adjustment of the needle lever (Fig. 2)
During this the roller (2) must always lie on the radius of the upper part of the
needle.
In this context also note point 3.1.4 Adjusting the needle (Fig. 2).

14 MA_310D-R_3100D-R_A16-3_181015_en
3.3 Under loop stroke one understands the path of the needle from its deepest
position to the point at which the hook point stands above the needle centre.
Loop stroke
3.3.1
Setting the loop stroke (Fig. 3)
Attention!
Disconnect machine from the mains!
The loop stroke is set at the works to 2 mm at the right needle penetration. If a
different loop stroke is required, proceed as follows:
By releasing the screws in the bevel gear (2) and turning this the hook takes up
the thread loop earlier or later.
When tightening the screw a normal play between the bevel gears must be
observed.
When altering the loop stroke the needle lever must almost always be adjusted.
Fig. 3

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3.4
3.4.1
Hook
Removal and fitting of the hook (Fig. 2 and Fig. 3)
Attention!
Disconnect machine from the mains!
Remove the following parts:
Cover (head back), needle, stitch plate, steering lever (1) (Fig. 2), bolt (15)
(Fig. 2), needle lever (18) (Fig. 2), stop lever (17) (Fig. 2) with hook stop (13)
(Fig. 2) and bevel gear (3) (Fig. 3), then the hook can be pulled out to the front.
Fitting in reverse order.
It must be observed that the teeth of the bevel gears (3) (Fig. 3) and (2) (Fig. 3)
marked red and the surface of the hook screw must again form a line when
fitted.
3.4.2 The distance from the hook point to a 100-needle must be 0.1 mm. If the
readjustment of the hook is necessary, this is carried out by releasing the
cheese-head screw (2) and turning the eccentric bush (1).
Adjusting the hook to the needle (Fig. 4)
Fig. 4

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3.4.3 If a thread is stuck between reel capsule and hook, the reel capsule must be
taken out, as otherwise the machine is blocked.
This makes removal of the hook necessary, see point “
Removal and fitting of the reel capsule (Fig. 5)
3.4.1 Removal and
fitting of the hook (Fig. 2 and Fig. 3)”.
After releasing the screws (1) the hook cover (3) can be removed. Then turn the
reel capsule at the reel holder flap (2) to position C and pull it out from the
hook.
When reinserting take care that the reel holder flap (2) points in the direction of
the hook point (c).
Fig. 5
3.4.4 The leaf spring (2) regulates the reel thread tension. Thread tension – reel thread (Fig. 6)
By turning the flat head screw with catch (1), the leaf spring must be able to be
adjusted in such a way that when the reel is inserted, the thread is pulled
correctly under the leaf spring and then the reel capsule is released, this
together with the reel falls slowly downwards, or by light jerking at the thread.
Fig. 6