Deprag MINIMAT 347-210-31UL User manual

012754en
Operating Instruction Booklet
Stationary Screwdriver Spindle
347-210-31UL 397079 A
347-310-31UL 397079 B
347-510-31UL 397079 C
347-610-31UL 397079 D
347-910-31UL 397079 E
MINIMAT

2
Dear Customer:
This tool is the result of more than 75 years of experience in the design and
manufacturing of pneumatic tools for the industrial market.
We kindly ask that you read these operating instructions carefully so that you
will be able to use this
tool safely and for many years to come.
If you need additional information, please contact your DEPRAG
Representative, one of our international support offices or us direct at
DEPRAG. We will be happy to answer any questions.
Please visit our web site:
www.deprag.com
Contents
1SAFETY TIPS ................................................................................................................3
1.1. General Safety Tips....................................................................................................3
1.2. General Safety Tips for Pneumatic Stationary Screwdriver Spindles .........................4
1.3. Owner Obligation........................................................................................................4
1.4. Operator Obligation ....................................................................................................5
1.5. Warranty and Liability.................................................................................................5
1.6. Symbol Description.....................................................................................................6
1.7. Observe Environmental Regulations ..........................................................................8
2DESIGNATED EQUIPMENT USE .................................................................................8
3INSTALLATION..............................................................................................................9
4OPERATION................................................................................................................11
4.1. Range and Exchange of Clutch Spring.....................................................................12
4.2. Torque Adjustment ...................................................................................................14
4.3. Connection-Possibilities of the Function Control.......................................................15
4.4. Change of bits...........................................................................................................16
5DISASSEMBLY – ASSEMBLY.....................................................................................17
5.1. Special Repair Tools (Optional Equipment)..............................................................19
5.2. Correct Assembly of Shut-Off Function on Clutch ....................................................20
5.3. Spare Part Drawings.................................................................................................21
5.4. Spare Parts Drawings for Accessories .....................................................................29
5.5. Installation Tips for Screwdriver Spindle...................................................................30
6MAINTENANCE AND UPKEEP...................................................................................31
6.1. Wear Parts................................................................................................................31
7TROUBLE SHOOTING ................................................................................................32
8DELIVERY CAPACITY.................................................................................................33
9ACCESSORIES - OPTIONAL EQUIPMENT................................................................33
10 STORAGE..................................................................................................................35
11 TECHNICAL DATA.....................................................................................................36
12 DISPOSAL..................................................................................................................36
13 DECLARATION OF MANUFACTURER.....................................................................37
14 SERVICE LOCATIONS AND AUTHORIZED PARTNERS.........................................38

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1 Safety Tips
1.1. General Safety Tips
Before operating tool make sure to carefully read and
observe this operating instruction.
Generally, the operator of the equipment and/or machinery is responsible for
the equipment’s perfect condition and operation, while observing all necessary
safety regulations. The equipment and/or machinery has been constructed in
accordance with the newest level of technology while recognizing all
necessary safety-
related requirements. Nevertheless, while operating the
equipment and/or machinery there is a risk of bodily harm to the operator as
well as damage to equipment and/or machinery and other property.
Operate the equipment and/or machinery only if equipment/machinery
•Is used for the task it was designed for
•is in perfect working condition and safe to use.
It is important to observe the technical data of the equipment, especially in
regards to the envi
ronmental temperatures. The designated area of use for this
equipment is clearly described in chapter Designated Equipment Use
and
those requirements have to be observed as well. Prerequisite for the safe
conduct and the uninterrupted opera
tion of the equipment, is the knowledge of
the basic safety tips and the safety regulations. Additionally, all current
regulations for a safe operational area, for accident-pr
evention guidelines of
electrical and mechanical installations, as well as noise suppression
requirements must be observed. During any mainte
nance or repair work, a
clean work surface is recommended. Also, it is not recommended to either eat
or smoke durin
g repair or maintenance. Arbitrary changes made to the
equipment, which alters its designated use, voids the warranty and cancels the
manufacturers liability.
•The tool is not insulated to protect against an electrical power surge.
•It is not recommended to use this tool in explosive hazardous
environments, unless it was specifically designed for such a use.
The operating instruction booklet, especially the safety symbols and safety tips
attached to the equipment or included in the documentation, must be observed
at all times by all persons getting into contact with the equipment.

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1.2. General Safety Tips for Pneumatic Stationary Screwdriver Spindles
•
Disconnect the tool from the air supply, when changing bits or
when re-adjusting clutch.
•Do not wear wide clothing or jewelry, for they can be seized by
movable parts. Wear a hairnet if operator has long hair.
•Keep hands off the installed Screwdriver Spindle.
•Injury is possible, if the driver reacts with an unexpected motion or when
used with broken bit or fixture.
•When using tool with bit-adapter or bit-extension (i.e. Magnetic Bitholder)
make sure, that those items are in good condition and well suited for the
application with this tool.
•Do not exceed the maximum allowable air pressure.
A pressure
regulator has to be installed, which regulates pressure before
reaching the tool.
•After turning-off the tool, the bit will continue to rotate (inertia).
1.3. Owner Obligation
The owner is obliged to only let persons operate the equipment, who
•are familiar with basic work environment safety rules and accident-
preventing regulations. Also, those persons must have been instructed in
the correct use of the equipment.
•have read and understood all safety and warning notifications in the
Operating Instruction Booklet, as well as all other documentation
pertaining to this equipment.
•check and confirm at regular intervals, that a safety oriented operation is
guaranteed.
Only qualified and authorized personnel is allowed to operate, maintain and
repair this equipment. A malfunction, which impairs operator safety, must be
immediately removed.

5
1.4. Operator Obligation
Personnel, who is engaged in the operation of the equipment, must always be
committed to
•observe the basic safety and accident preventing regulations,
•read and observe the safety and warning notifications of this operating
instruction booklet.
1.5. Warranty and Liability
Unless otherwise specified, our “General Sales and Delivery Conditions”
apply. Warranty and liability claims in regards to persons or equipment
damages are invalid, if one or several of the following causes apply:
•Use of the equipment in a non-designated application.
•Improper installation, operation, service or maintenance of the machine.
•
Operation of the machine with either defective or removed safety and
protection devices.
•Non-
observance of the requirements stated in the operating instruction
booklet
, in regards to transportation, storage, mounting, installation,
operation, maintenance and service of the equipment.
•Structural change or adjustment on the equipment to a non-
designated
use.
•Inadequate supervision of wear parts.
•Improper repair, inspection or maintenance.
•
Catastrophic cases because of a war, acts of god or other reasons which
are beyond our control.

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1.6. Symbol Description
Read and observe the Operating Instruction Booklet, prior
to and during operation of tool.
DANGER
Reference to an immediate danger to a person. May lead to
serious injuries or even death if unobserved!
Properly recycle environmentally damaging grease, cooling
agents or detergents.
RECOMMENDATIONS
Important or additional information on the equipment or in the
documentation.
Use eye protection or wear safety goggles.
Wear hearing protection.
Warning against hand-injuries.
Attention: Keep away your hands from areas, which are marked
with this symbol!
Hands may be crushed, seized or otherwise injured.
ESD-protected area
Equipment may be damaged or destroyed by an electrostatic
discharge.
Waste Oil

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Maintenance and repair on hydraulic and pneumatic equipment
may only be performed by specially trained personnel!
Disconnect equipment from air supply, prior to repair of
pneumatic or hydraulic equipment.
Provide regular preventive maintenance on hoses and airlines.
Exchange hose lines, even if there is no visible damage!
(Observe corresponding requirements of the manufacturer!)
After repair and maintenance, check the following items:
•make sure all detached and re-attached connections are
solid.
•confirm that removed covers, screens or filters were re-
installed
•During disconnecting or reconnecting of an air-operated
equipment, injury may occur due to a whipping air-hose
After conclusion of maintenance or repair and prior to start of
operation, make sure to
•remove all materials, tools and other supplies needed for the
maintenance or repair from work area of the equipment
•remove leaking liquid or oils
•make sure all safety devices on the equipment work perfectly!

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1.7. Observe Environmental Regulations
When working on or with the equipment, it is imperative to
observe all requirements in regards to waste-disposal and
proper recycling.
Especially during installation, repair or maintenance, water
damaging agents such as
•lubricating grease and oil
•hydraulic fluid
•cooling agents
•solvent-containing cleaning agents
must not leak into the ground or into the sewage system!
Such materials must be stored, transported, contained and
recycled in suitable containers.
2 Designated Equipment Use
Screwdriver Spindles are constructed for the stationary use in
• Lever Operated Single Spindle Screwdriving Stations
• Construction Units
• Multi-Spindle Screwdriving Stations
• Robot End-Of-Arm Tooling
• X-Y-Z Screw-Assembly Stations
These Spindles assemble screws to torque and measure that torque more
accurately than any subsequent testing method.

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3 Installation
•Blow out air line and pressure hose, prior to connection it to the tool.
•Make sure, that all air lines have a sufficient cross-section (see technical
data) and hoses must be free of bends and kinks. The hose length should
not exceed 2 meters.
•All DEPRAG Screwdrivers may be operated either with or without
lubricated air (see paragraph: Maintenance and Upkeep). Best results are
achieved, when machine is lubricated with 1 – 2 drops of oil per 1m
3
.
When operating with oilfree air, a performance reduction of up to 20%
occurs and maintenance requirements increases!
•Connect the equipment as follows:
a) for standard operation connect equipment to a maintenance unit,
consisting of Filter with condensation reservoir, Regulator and Oiler.
When choosing a maintenance unit, observe air consumption rate for
the tool (see Technical Data).
Air Consumption Thread Size Part No.
0,05 - 0,5 m³/min ¼” 820454 A
0,15 – 1,5 m³/min ½” 820455 A
0,8 – 6,0 m³/min ¾” 821608 A
b) for the use with minimal lubrication connect to Filter/Regulator
consisting of Filter with condensation reservoir and Pressure Regulator
Air Consumption Thread Size Part No.
0,05 - 0,5 m³/min ¼” 822408 A
0,15 – 0,9 m³/min
3
⁄
8
” 826981 A
0,15 – 1,5 m³/min ½” 822409 A
0,8 – 6,0 m³/min ¾” 826982 A
Each in connection with a Point-of-Use Oiler (Part No. 378077 A)
c) for oilfree operation, connect to Filter/Regulator, consisting of Filter
with condensation reservoir and Pressure Regulator.
Air Consumption Thread Size Part No.
0,05 - 0,5 m³/min ¼” 822408 A
0,15 – 0,9 m³/min
3
⁄
8
” 826981 A
0,15 – 1,5 m³/min ½” 822409 A
0,8 – 6,0 m³/min ¾” 826982 A

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OUR RECOMMENDATION: The preferred lubricating method for the
screwdriver spindles mounted in fixtures, brackets, machines, etc., each in
connection with a controller, is method b) with Point-of-Use Oiler.
•Check pressure at directly on the machine. The Regulator needs to be
adjusted to an airflow between 5.0 (71 PSI) and 6.3 bar (90 PSI). A higher
pressure leads to increased wear and tear. A lower pressure may lead to
clutch not being able to co
r
rectly shut
-
off the motor.
In regards to air-quality according to ISO8573-1, we recommend:
C
LASS R ESIDUE
OF O IL R
ESIDUE OF D UST R ESIDUE OF W ATER
Content
mg/m³ Particle
Size µm Concentration
max. mg/m³ Dew Point
o
C
Pressure
Concentration
max. g/m³
Lubricated Air 4 5 15 8 +3 6
DryAir 3 1 5 5 -20 0,88

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4 Operation
Unless otherwise requested the driver is preset to max. torque with the
strongest clutch spring.
Adjust clutch to the required torque value. If necessary, exchange clutch
spring. The necessary torque adjustment can be tested, using a DEPRAG
Torque Wrench or Measuring Platform (see DEPRAG catalogs D3020 and
D3022 ). This equipment can also be used to re-adjust the torque of the
Screwdriver Spindle.
Operating the clutch using a clutch spring which exceeds
its allowable torque, leads to a reduction of the torque
accuracy.
The driver starts by remote-valve.
The flow pressure should not drop below 5 bar (71 PSI)!
The installation and connection of the Screwdriver Spindle requires the
following steps:
1. Adjust clutch to required torque setting (see paragraph: Torque
Adjustmen t).
2. Install Screwdriver spindle according to picture „ Installation Tips for
screwdriver spindle “.
3. Connect main air hose.
4. Connect pneumatic function control hose. This function control is under
pressure of 2,5 bar during actual screw-driving. If the function control
is not needed, the port has to be closed, otherwise there is a loss of
power of about 15 %.
Please make sure not to exceed the max. screwdriver stroke (see
Installation Tips for screwdriver spindle ) during Screwdriving. The noise level
can be further reduced, when an exhaust connection with connected
Filter/Silencer is used.
Function Description / Driver Start

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IMPORTANT
The screwdriver starts as soon as connected to the air supply.
The flow rate of the remote valve must not be below 0,46 m³/min.
For reversible tools please note:
• Left-
hand direction of screwdriver will be started by a remote valve via the
air connector on top of the screwdriver and screwdriver will shut off in this
direction at the preset torque.
• When providing air to the screwdriver via the connector for right-hand
direction (at one side of the screwdriver) screwdriver will rotate at
maximum torque. Screwdriver will start running immediately upon
providing air to this connector.
• Make sure to always vent the air connector for the opposite direction
(otherwise it will result in reduced performance).
4.1. Range and Exchange of Clutch Spring
The torque range of the DEPRAG Screwdriver is adjustable. Please see a
listing for the torque ranges of the color
-
coded springs below.
Torque Range of the individual clutch spring:
PART NO .
WIRE -∅
∅∅
∅
COLOR TORQUE " MIN ." TORQUE " MAX ."
323035/1 2,5 mm Green appx. 1,4 Nm / 12in.lbs. appx. 2,0 Nm / 18in.lbs.
323036 2,2 mm Red appx. 0,5 Nm / 4,4 in.lbs. appx. 1,5 Nm / 13 in.lbs.
323037 1,6 mm Yellow appx. 0,2 Nm / 2 in.lbs. appx. 0,6 Nm / 5,3in.lbs.
All torque values are based on 90-PSI (6,3 bar) air pressure. Torque values
are estimated data which may differ
–
depending on the type of screw joint.
Exchange of clutch spring (see picture)
To avoid loosing individual small parts, it is recommended to
only disassemble the machine on top of a flat work surface.
1. Disconnect the screwdriver from air/power supply.
2. Unscrew the clutch bearing (left-hand thread).
3. Take out the clutch complete.
4. Insert the hand screwdriver into the half-round bore of the lock ring and
turn hand screwdriver clockwise, until adjustment nut comes off.
5. Pull off lock ring.
6. Remove clutch spring, replace with new clutch spring and reassemble
clutch in reverse order.
7. Insert clutch into clutch bearing and tighten clutch bearing to DEPRAG-
Screwdriver (left-hand thread).

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NOTICE
The claw of the clutch must engage with the claw of the spin-
dle!
8. An external torque adjustment of the clutch is again possible (see chap-
ter Torque Adjustment ).
Picture: Exchange of clutch spring
Make sure to screw adjustment (adjusting) nut onto clutch shaft
until one line of the thread is visible.
adjustment nut
half-round bore clutch spring claw of the clutch

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4.2. Torque Adjustment
For an external torque adjustment use the following steps:
1. Disconnect the screwdriver from the air supply.
2. Insert the supplied hand screwdriver 326240 through one of the slots on
the motor housing into the half-round bore of the lock ring (if necessary,
turn bit by hand).
3. By turning the hand screwdriver clockwise (-), the torque is reduced and
if turned counter-clockwise (+), the torque is increased.
Picture: Torque Adjustment
half-round bore for
hand screwdriver 326240

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4.3. Connection-Possibilities of the Function Control
Use as air pressure outlet during screw-assembly:
•to control driver start and stop, as well as shut-off control of clutch;
•as cycle counter of the complete process;
each in connection with a PE-Switch or similar
This function control is under pressure of appx. 2 bar during actual screw-
driving. After reaching the preset torque, the clutch will disengage and turn off
the Screwdriver. The pressure in the function control line will drop. The
Screwdriver can now be lifted off the assembled screw.
Use as air pressure inlet:
•If 6.3 bar (90 PSI) air pressure is given to the function control port, the
driver starts rotating at about 15 % of its speed. This will simplify the enga-
gement of bit/socket to fastener (for example when driving hex screws,
nuts, etc.)
If the function control is not needed, the port has to be closed,
otherwise there is a loss of power of about 15 %.

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4.4. Change of bits
CAUTION
Always disconnect the screwdriver from air supply prior to
changing bits, to avoid the unintentional start of the
screwdriver, which may result in injuries.
Before exchange of bits, the clutch bearing has to be in
place.
1. Unscrew the spring sleeve (left-hand thread) – only necessary if a finder
is mounted.
2. After pulling the sleeve 351890 the bit may be removed or inserted.
Picture: Change of bits
IMPORTANT
Make sure to use perfect bits with DIN 3126 – E6,3 (1/4“)
external hexagon end only.

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5 Disassembly – Assembly
Disassembly: (see Spare Parts Drawing)
CAUTION
Prior to disassembly, disconnect equipment from air
supply in order to avoid the unintentional start of the tool
which may result in hand injuries!
Only experienced maintenance personnel may assemble
or disassemble this equipment.
After repair or maintenance, verify that equipment runs to specification!
Principally, use only DEPRAG original spare parts. Otherwise, a reduction in
equipment power-output and an increased maintenance-requirement occurs.
If NON-DEPRAG parts are installed, DEPRAG is justified to void any existing
warranty and liability obligations.
ATTENTION
Motor- and gearing parts may be damaged if dropped!
ATTENTION
Never clamp motor housing into a vice, without the usage of the
protective chucking jaws, since damage to motor-housing and
internal parts is unavoidable.
For disassembly proceed in the sequence described below:
1. Disconnect the screwdriver from the air supply.
2. Unscrew the clutch bearing 397160 H complete with the spring sleeve
(Accessories - Optional equipment) by means of the supplied hook
3275961 (left-hand thread).
3. Take out the complete clutch 4013761C.
4. Clamp the screwdriver spindle by means of the chucking jaws 461498
into a vice, utilizing the flats of the motor housing 3988561.
5. Unscrew the double nipple 829214 (AF 14, right-hand thread) as well as
the air connection parts (slide connector 830896, slide connector 824895
and seal ring 811351).
6. Take off the snap ring 800964 (located in air connection 386924 F) and
remove the silencers.
7. Unscrew the sleeve 401119 (AF 19, located in air connection 386924 F)
from the valve housing 401130 (right-hand thread).

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8. Pull off the flange 3384556 with the complete guide bolt 401115 C from
the valve housing 401130.
9. Take out the valve set 401168 D.
10. Unscrew the valve housing 401130 (AF 10, right-hand thread) from the
motor housing 3988561.
11. Remove the intermediate ring 4011201 and push the motor with the gea-
ring out of the motor housing towards air inlet side.
a. Clamp rotor cylinder into fixing device.
b. Pull off shaft-side bearing cover from rotor.
c. Remove rotor cylinder.
NOTE
Exchange only complete sets of vanes.
d. Remove vanes and check them thoroughly. Vanes that are too narrow
or damaged have to be replaced in sets.
e. Pull off air connecting-side bearing cover from rotor.
f.
Press the two ball bearings from the bearing covers.
IMPORTANT
Minimum vanes width should be 4 mm.

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Assembly:
Use the DEPRAG Grease 807293 (100-g tube) to grease the
ball bearing, needle bearing and gearing parts prior to
reassembly.
a. Clean rotor.
b. Press the ball bearings into the two bearing covers.
c. Press the shaft-side bearing cover with the ball bearing on the rotor.
d. Insert the new vanes into the rotor.
e. Put the rotor cylinder over the rotor.
After assembly the bearing covers shouldn’t have any axial
gap. The rotor must turn freely.
f. Press air-connecting side bearing cover with the ball bearing on the
rotor.
For remaining assembly proceed logically in reverse order with reference to
disassembly!
NOTICE
Preassemble the motor housing 3988561 by hand and do not
tighten excessively.
Tighten the valve housing 401130 using a tightening torque of
25 Nm / 220 in.lbs.
5.1. Special Repair Tools (Optional Equipment)
N AME U SAGE P ART N O .
Fixing device for rotor cylinder 460762
Arbor to disassemble bearing cover with groove ball
bearing 462329
Press-in device to press the intermediate pinion 328139 into
gear support 461224
Plier for clutch bearing 398861 4612961
Assembly arbor to assemble circlip 800248 onto spindle 351888 461292
Chucking jaws for motor housing 461498
Spanner AF 19 for motor housing 800408

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5.2. Correct Assembly of Shut-Off Function on Clutch
ATTENTION
If the stop-pin is installed incorrectly, the clutch will NOT
shut -off.
In between the two curves, the taper of the stop pin has to point towards
the outside (as illustrated in the pictures below).
Curves
Taper on
Stop Pin
Taper on
Stop Pin