Texi Post DD User manual

Texi Post DD – Manual Instruction
Manual instruction
Mechatronic Post-Bed
Lockstitch Machine
with Built-in Energy Saving Motor,
control box and control panel
Post DD

Texi Post DD – Manual Instruction

Texi Post DD – Manual Instruction
Notes for using this operation manual and parts book
1. This book is applicable to sewing machine which have the same plate number as shown on the
cover of this book.
2. This book was prepared based on information available in December 2014.
3. Parts are subject to change in design without prior notice.

Texi Post DD – Manual Instruction

Texi Post DD – Manual Instruction
CONTENTS
1.
1.1.
1.2.
1.3.
2.
3.
4.
5.
5.1.
5.2.
5.3.
5.4.
5.5.
5.6.
5.7.
6.
6.1.
6.1.1.
6.2.
6.3.
6.4.
6.5.
6.6.
6.7.
7.
7.1.
7.2.
7.3.
7.4.
7.5.
7.6.
8.
8.1.
8.2.
8.3.
8.4.
8.5.
9.
9.1.
9.2.
9.3.
Safety……………………………………………………………………………………………………….
Safety symbol………………………………………………………………………………………………
Important points for the user……………………………………………………………………………..
Danger………………………………………………………………………………………………………
Proper use………………………………………………………………………………………………….
Specifications………………………………………………………………………………………………
Explanation of symbols……………………………………………………………………………………
Controls…………………………………………………………………………………………………….
Keys on the machine head……………………………………………………………………………….
Bobbin thread monitoring with stitch counting………………………………………………………….
Pedal………………………………………………………………………………………………………..
Lever for lifting roller presser…………………………………………………………………………….
Knee lever………………………………………………………………………………………………….
Key for setting stitch length………………………………………………………………………………
Swing out roller presser…………………………………………………………………………………..
Installation and commissioning………………………………………………………………………….
Installation………………………………………………………………………………………………….
Adjusting the table height…………………………………………………………………………………
Fitting the reel stand……………………………………………………………………………………….
Install the Safety plate for tilting the machine head…………………………………………………….
Commissioning…………………………………………………………………………………………….
Tilted work base……………………………………………………………………………………………
Tilted work base……………………………………………………………………………………………
Mounting the table top…………………………………………………………………………………….
Preparation…………………………………………………………………………………………………
Inserting needle……………………………………………………………………………………………
Winding the bobbin thread; adjusting the primary thread tension…………………………………….
Removing/inserting the bobbin case…………………………………………………………………….
Threading the bobbin case/adjusting the bobbin thread tension……………………………………..
Threading the needle thread and regulating its tension……………………………………………….
Setting the stitch length……………………………………………………………………………………
Care and maintenance……………………………………………………………………………………
Cleaning……………………………………………………………………………………………………
Oiling the hook……………………………………………………………………………………………..
Oil bowl for hook lubrication……………………………………………………………………………..
Filling the oil reservoir of the thread lubrication unit…………………………………………………..
Lubricating the bevel gears………………………………………………………………………………
Adjustment…………………………………………………………………………………………………
Notes on adjustment………………………………………………………………………………………
Tools, gauges and other accessories……………………………………………………………………
Adjusting the basic machine……………………………………………………………………………...
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3
3
4
5
5
5
6
6
7
7
8
9
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Texi Post DD – Manual Instruction
9.3.1.
9.3.2.
9.3.3.
9.3.4.
9.3.5.
9.3.6.
9.3.7.
9.3.8.
9.3.9.
9.3.10.
9.3.11.
9.3.12.
9.3.13.
9.3.14.
9.3.15.
9.3.16.
9.3.17.
9.3.18.
9.3.19.
9.3.20.
9.3.21.
9.4.
9.4.1.
9.4.2.
9.4.3.
9.4.4.
9.4.5.
9.4.6.
9.4.7.
9.4.8.
9.5.
9.5.1.
9.5.2.
9.5.3.
9.5.4.
Needle position in sewing direction………………………………………………………………………
Preliminary adjustment of the needle height……………………………………………………………
Needle rise, hook clearance, needle height and needle guard………………………………………
Needle position crosswise to sewing direction…………………………………………………………
Height and stroke of the bobbin case opener………………………………………………………….
Height of the feed wheel………………………………………………………………………………….
Stitch length control eccentric……………………………………………………………………………
Stitch length scale disk……………………………………………………………………………………
Shaft crank to feed wheel drive…………………………………………………………………………..
Shaft crank to roller presser drive……………………………………………………………………….
Roller presser and feed wheel adjustment……………………………………………………………..
Roller presser………………………………………………………………………………………………
Stitch length on stitch length scale………………………………………………………………………
Synchronization of roller presser and feed wheel……………………………………………………..
Knee lever………………………………………………………………………………………………….
Needle thread tension release…………………………………………………………………………...
Thread check spring………………………………………………………………………………………
Bobbin winder……………………………………………………………………………………………..
Pressure of roller presser…………………………………………………………………………………
Lubrication………………………………………………………………………………………………….
Re-engage safety coupling……………………………………………………………………………….
Adjusting the thread trimmer……………………………………………………………………………..
Resting position of the roller lever/radial position of the control cam………………………………..
Position of the thread catcher holder……………………………………………………………………
Distance between thread catcher and needle plate……………………………………………………
Position of the thread catcher…………………………………………………………………………….
Knife position and knife pressure………………………………………………………………………..
Bobbin thread retaining spring…………………………………………………………………………...
Manual cutting test…………………………………………………………………………………………
Releasing the tension…………………………………………………………………………………….
Adjusting back-tacking mechanism……………………………………………………………………..
Needle in the hole…………………………………………………………………………………………
Coupling for roller presser drive…………………………………………………………………………
Bevel gears for feed wheel drive…………………………………………………………………………
Bevel gear movement…………………………………………………………………………………….
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27
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32
32
33
33
34
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Texi Post DD – Manual Instruction
1. Safety
1.1. Safety symbols
Danger!
Points to be observed.
Danger of injury for operating and
specialist personnel!
Caution
Do not operate without finger guard
and safety devices.
Switch off machine before threading,
changing bobbin and needle, etc.
1.2. Important points for the user
- This Manual Instruction is a component of the machine and must be available to the operating personnel at
all times.
- The Manual Instruction must be read before operating the machine for the first time.
- The operating and specialist personnel must be instructed in the safeguards of the machine and safe work
methods.
- It is the duty of the user to operate the machine in perfect running order.
- It is the obligation of the user to ensure that none of the safety mechanisms are removed or deactivated.
- It is obligation of the user to ensure that only authorized persons operate and work on the machine.
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Texi Post DD – Manual Instruction
1.3. Danger
A working area of 1 meter is to be kept free both in front of and behind the
machine in operation so that the machine is always accessible.
Never reach into the sewing area while sewing!
Alert of injured of the needle!
Never leave objects on the table while adjusting the machine’s settings!
Object can be trapped or slung away!
Alert of accident!
Do not operate the machine without support 1!
Danger due to top-heavy sewing head!
Machine can tip over backwards when tilted!
Switched off the machine before tilting it backwards to prevent accident caused
by abrupt start of the sewing machine.
Do not operate the machine without its take-up-lever guard 3 to prevent
accident due to its motion.
On machines with thread lubricator, only operate the machine with eye guard 4
lowered as it will protect the eyes from oil particles of the thread lubrication.
Do not operate the machine without tilt lock 2 to prevent crashing between
machine head and table top.
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Texi Post DD – Manual Instruction
2. Proper use
Texi Post DD is a single needle, high speed post bed sewing machine (post to the right of the needle) with driven feed
wheel and roller presser and synchronized needle.
The machine is used for sewing lockstitch seams in leather and upholstery industries.
Any use of the machine which is not approved by the manufacturer shall be
considered as improper use!
Manufacturer shall not be liable for any damage caused by improper use.
Proper use shall also be considered to include compliance with the operation,
adjustment, service and repair measures specified by the manufacturer.
3. Specifications
Stitch type……………………………………………………………………………..
Clearance under roller presser……………………………………………………..
Clearance width………………………………………………………………………
Clearance height……………………………………………………………………..
Post height……………………………………………………………………………
Sewing head dimensions
Length…………………………………………………………………………………
Width…………………………………………………………………………………..
Height (above table)…………………………………………………………………
Bedplate dimensions………………………………………………………………..
Max speed (depends on the materials, work operation and stitch length)…….
Connection data
Operating voltage…………………………………………………………………….
Max. power consumption……………………………………………………………
Fuse protection……………………………………………………………………….
Noise data
Emission sound level at the work place at appropriate speed
(DIN 45 635-48-A-1, ISO 11204, ISO 3744, ISO 4871)
Noise measurement in accordance with DIN 45 635-48-A-1, ISO 11204, ISO
3744, ISO 4871
At speed 2400 spm………………………………………………………………….
At speed 1600 spm………………………………………………………………….
KpA = 2,5 dB
Net weight of sewing head………………………………………………………….
Gross weight of sewing head………………………………………………………
Additional equipments: D3 – Automatic edge trimmer, automatic presser foot
lifter, bartacking device.
301/ lockstitch
7 mm
245 mm
115 mm
180 mm
Approx. 615 mm
Approx. 240 mm
Approx. 500 mm
518 x 177 mm
3000 spm
220V +/- 10%, 50/60 Hz
1.2 kVA
1 x 16 A/ insert
Lpa ≤79 dB (A)
Lpa ≤73 dB (A)
Approx. 61 kgs
Approx. 71 kgs
Needles and threads
This machine is dedicated for Medium-weight material (M).
However, by changing some parts, it can also be used to sew thick materials (H).
Model Thread thickness (Nm) max.
Synthetics Needle thickness 1/100mm * Needle system
M 40 / 3 90 / 14 134
H 15 / 3 120 / 14 134
* or similar strengths of other types of thread.
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Texi Post DD – Manual Instruction
4. Explanation of symbols
In this Manual instruction, work to be carried out or important information is accentuated by symbols which have the
following meanings:
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Texi Post DD – Manual Instruction
5. Controls
5.1. Keys on the machine head
- As long as key 1 is pressed during sewing, the
machine sews in reverse direction.
- Keys 2 can be used for parameter settings,
Manual instruction of Control box.
5.2. Bobbin thread monitoring with stitch counting
- About 100 stitches before reaching the preset
number of stitches, LED 1 flashes.
- After the thread has been trimmed and the
bobbin changed, the stitch counting restart from
beginning.
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Texi Post DD – Manual Instruction
5.3. Pedal
0 = Neutral position
1 = Sewing
2 = Raising roller presser
3 = Trim sewing threads
5.4. Lever for lifting roller presser
The roller presser can be raised by turning lever 1.
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Texi Post DD – Manual Instruction
5.5. Knee lever
The roller presser can be raised pressing the knee
lever 1 in the direction shown by the arrow.
5.6. Key for setting stitch length
The stitch length is set by pressing key 1 and turning
the balance wheel (see Chapter 7.6. Setting the
stitch length).
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Texi Post DD – Manual Instruction
5.7. Swing out roller presser
When the roller presser is raised, it can be swung out
by pulling it lightly downwards.
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Texi Post DD – Manual Instruction
6. Installation and commissioning
The machine must only be installed and commissioned by qualified personnel.
All relevant safety regulations must be strictly adhered to.
If the machine is delivered without a table top, be sure to use table stand and table top
that can hold the weight of the machine with its motor.
It is very important to ensure that the stand of the machine is firm and steady, also
during sewing.
6.1. Installation
The site where the machine is installed must be provided with suitable connections for electric current. It must be
ensured that the standing surface of the machine site is firm and horizontal, and that sufficient lighting is provided
for.
6.1.1. Adjusting the table height
- Loosend screws 1 and 2 and set the table
height as required.
- Firmly tighten screw 1.
- Set the required pedal position and
tighten screw 2.
6.2. Fitting the reel stand
- Fit the reel stand as shown in Figure.
- Afterwards, insert the stand in the hole of the table
top and secure it with nuts provided.
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Texi Post DD – Manual Instruction
6.3. Install the safety plate for tilting the machine head
- Turn off the machine main power switch. There is a
risk of injury if the machine accidentally start.
- Use screw no. 2 to fix the safety plate (using the
screwdriver provided on accessories tools).
- Do not turn on the machine without safety plate!
There is a risk of inquiry between machine
head and table top.
6.4. Commissioning
- Check the machine, particularly the electrical wiring for any damage.
- Clean the machine thoroughly and then oil it or fill oil in (see Chapter 11 – Care and maintenance).
- Have a mechanic check whether the motor of the machine can be operated with the available power supply,
and that the motor is correctly connected in the junction box. If there are any discrepancies, the machine
must not be operated under any circumstances.
- When the machine is running, the balance wheel must turn towards the operator. If it does not, the motor
connection must be changed by a mechanic.
- Machine with pneumatic equipment must be connected to the compressed air supply. The pressure gauge
should indicate a pressure of 6 bar. If necessary, adjust to the correct setting (see Chapter 8.1.
Checking/adjusting the air pressure).
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Texi Post DD – Manual Instruction
6.5. Tilted work base
6.6. Tilted work base
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Texi Post DD – Manual Instruction
6.7. Mounting the table top
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Texi Post DD – Manual Instruction
7. Preparation
All instructions and regulations in this Manual Instruction must be observed.
Special attention is required to all safety regulations.
All installation/setting-up the machine must only be carried out by personnel with
appropriate training.
During installation/setting-up, the machine must be disconnected from power supply by
turning of the on/off switch or removing the plug from electric power socket.
7.1. Inserting needle
Warning: Turn OFF the power before starting the work as to prevent accident
caused by abrupt start of the sewing machine.
Only use needle system 134
- Raise the roller presser 1 and swing it out.
- Loosen screw 2 and insert the needles as
far as possible. The long groove must face
to the left.
- Tighten screw 2 and swing roller presse 1
back to position.
NOTE:
The choice of needle depends on the model of
machine, the thread and the material used.
See Chapter 3. Specifications – Needles and
threads.
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Texi Post DD – Manual Instruction
7.2. Winding the bobbin thread; adjusting the primary thread tension
- Place an empty bobbin 1 into bobbin winder spindle 2.
- Thread the bobbin as shown in Fig. – and wind it clockwise around bobbin 1 a few times.
- Switch on the bobbin winder while pressing bobbin winder spindle 2 and lever 3.
- The thread tension of bobbin 1 can be adjusted by knurled screw 4.
- The bobbin winder stops automatically when bobbin 1 is full.
- If the thread is wound unevenly:
•Loosen nut 5.
•Turn thread guide 6 accordingly
•Tighten nut 5.
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