Deprag MINIMAT 346-237U User manual

013124en
Operating Instruction Booklet
- Translation of the original instructions -
Pneumatic Screwdriver
MINIMAT
Motor Size 3
346-237U 400373 B
346-737U 400373 C
346-337U 400373 D
346-437U 400373 E
NOTICE ALL DOCUMENTATIONS !
Before beginning work this operating instruction booklet and the enclosed
safety instructions (no. 016000, pink-colored booklet) have to be read through
carefully. Always follow the instructions during operation. Give this operating in-
struction booklet and the appropriate safety instructions to the operator.

2
Contents
1SIGNAL WORD AND SYMBOL DEFINITION...............................................................3
2SAFETY INSTRUCTIONS .............................................................................................4
3INTENDED USE.............................................................................................................5
4DELIVERY CAPACITY..................................................................................................5
5INSTALLATION.............................................................................................................6
5.1. Recommended Equipment.........................................................................................8
5.2. Optional Equipment....................................................................................................9
5.2.1 Assembly of Exhaust Hose 413417 A....................................................................10
5.3. Connection Options for the Pressure Hose..............................................................11
6OPERATION................................................................................................................12
6.1. Function Description / Driver Start............................................................................12
6.2. Torque Adjustment...................................................................................................13
6.3. Range and Exchange of Clutch Spring ....................................................................14
6.4. Insert or Change Inserting Tool................................................................................16
7HANDLING ..................................................................................................................17
8MAINTENANCE AND UPKEEP ..................................................................................18
8.1. Lubricants.................................................................................................................18
8.2. Wear Parts...............................................................................................................18
8.3. Maintenance Plan.....................................................................................................19
9DISASSEMBLY - ASSEMBLY ....................................................................................20
9.1. Service Tools (Optional Equipment).........................................................................20
9.2. Disassembly.............................................................................................................21
9.3. Assembly..................................................................................................................22
9.4. Check Length of Valve Pin.......................................................................................24
9.5. Spare Part Drawings................................................................................................25
9.6. Dimension Sheet......................................................................................................32
10 TROUBLESHOOTING...............................................................................................33
11 SHUT DOWN.............................................................................................................33
12 TECHNICAL DATA....................................................................................................34
13 EC-DECLARATION OF CONFORMITY....................................................................35
14 SERVICE LOCATIONS AND AUTHORIZED PARTNERS........................................36
List of illustrations
Illustration 1 - Installation.....................................................................................................7
Illustration 2 - Torque Adjustment......................................................................................13
Illustration 3 - Exchange of Clutch Spring..........................................................................15
Illustration 4 - Insert or Change Inserting Tool...................................................................16
Illustration 5 - Reversal......................................................................................................17
Illustration 6 - Cross Section Reversal...............................................................................22
Illustration 7 - Required Length of Valve Pin......................................................................24

3
1 Signal Word and Symbol Definition
The signal words and symbols used in the technical documentation
(
safety instructions,
operating instruction booklet, etc.) have the following meaning:
DANGER
Indicates an immediate danger which causes serious injuriesor even
death if not avoided.
WARNING
Indicates a threatening danger which can cause serious injuries or even
death if not avoided.
CAUTION
Indicates a danger or unsafe procedure which can cause injuries to a per-
sonor material damages if not avoided.
NOTICE
Indicates a potentially dangerous situation which can cause damage to
the product or its surroundings if not avoided.
IMPORTANT
Indicates tips and other useful information.
In each case the symbol used does not replace the safetytext. The text must always be
read fully. In some cases other symbols will be used with the signal words.

4
2 Safety Instructions
WARNING
Serious injuries or even death possible!
Disconnect screwdriver from air/power supply when adjusting the clutch or
changing/mounting the screwdriver tool (bit, socket) oraccessory.
CAUTION
Risk of injury to persons or damage to the tool/work piece.
Avoid pressure to fall below the minimum allowable air pressure, because
the clutch cannot shut-off safely anymore.
CAUTION
Fingers may be crushed by the rotating clutch in the adjustment slot.
Keep fingers away from the clutch adjustment slot.
CAUTION
Risk of crushing hands between holding bracket and work piece or
modification parts in confined spaces.
Make sure that any bracket used is correctly installed.
Keep hands away from holding fixture (if used). This applies especially
when unscrewing.
CAUTION
Rotating drive, rotating bit/socket or drive extension.
Injuries to fingers or even broken fingers.
When wearing gloves (e.g. rubber coated or metal reinforced) make sure
that they not become entangled.
Do not wear loose fitting gloves or gloves with cut or frayed fingers.
•Never hold the drive, screwdriver tool or drive extension with your hands.
•If you cannot support the reaction torque of themachine independently then use a
torque support (e.g. linear stand, telescopic arm, holding fixture/holder-
on, support grip).
It generally applies that: In any case use a torque support to absorb the reaction
torque above: for straight screwdrivers4 Nm; for pistol grip screwdrivers 10 Nm andfor
angle nutrunners 60 Nm.
•If it is not possible to use a torque support, use side handles for straight andpistol grip
screwdrivers. Side handles are recommended for straight screwdrivers at a torque set-
ting over 4 Nm and for pistol grip screwdrivers at torque settings over 10 Nm.
•Use a finder/sleeve fitting where practicable.
•When using socketsor adapters (e.g. magnet holder) make sure that they are in good
condition and suitable for use with this machine.
•To prevent sockets breakage use only sockets(e.g. for impact or impulse screwdrivers)
which are suitable for use with this machine.

5
3 Intended Use
DEPRAG
MINIMAT
S
crewdrivers with pistol grip are intended to be used only for ma
n
ual,
torque-controlled assemblies, preferably for horizontal applications. Reversible screwdriver
models arealso suitable to loosen screwconnections.
4 Delivery Capacity
Check
that
the shipment
is complete and that there have been no
damages intransit.
Quantity Name Order No.
1 Operating Instruction Booklet 013126en
1 Safety Instruction Booklet 016000
1 Screwdriver 400373 B / C / D / E
1 Key 326240 (TYPE 346-2/737U)
337691 (TYPE 346-3/437U)
1 Spanner AF 11 805491 (TYPE 346-3/437U)
1 Spanner AF 19 800408 (TYPE 346-3/437U)
1 Quick release coupling NW7.2 804251
1 set of Clutch spring chapter Range and Exchange of
Clutch Spring

6
5 Installation
•
Before connecting the air supply line to the screwdriver, clean the air pipe and the air
hose by slightlyblowing air into the pipe/hose in order to remove any dirt particles.
Wear safety goggles!
•Make sure, that all air lines have a sufficient cross-section (chapter Technical Data)
and that there are no throttle areas, bends or kinks.
•If the air supply line is longer than 2 meters, the next larger hose I.D. should be in-
stalled in order to avoida loss of power.
•This pneumatic screwdriver may be operated either with or without lubricated air. The
best performance is achieved by adding 1 – 2 drops of oil per 1 m³ of air consumption.
When operating with oil-free air, a performance reduction of up to 20% occurs and
maintenance requirements increases.
•The air supplyto the screwdriver has to be filtered.
•The maintenance unit, the valves and the silencers have to be selected according to
the air consumption of the screwdriver (chapter Technical Data). Install components,
which have a measurement that will limit the pressure drop – whenmeasuredfrom the
maintenance unit to the screwdriver – to less than 0.5 bar (7.25 PSI).
•Use only lubricants approved by the manufacturer. We recommend:
special oil „DEPRAGOL“, order no. 790081 E (250 cm³ = 8.45 fl. oz).
•Check flow-pressure at directly on the machine. The pressure regulator needs to be
adjusted to an airflow between 5.0 (71 PSI) and 6.3 bar (90 PSI). Ahigher pressure
leads to increased wear and tear. A lower pressuremay lead to clutch not being able to
correctly shut-off themotor i.e. the preset torque will not bereached.
•Connect the screwdriver as follows:
a) For standard operation, connect toa maintenanceunit consisting of filter with water
separator, pressure regulator and oiler.
Air Consumption Thread Size Order No.
0,05 - 0,5 m³/min G 1/4 820454 A
0,15 – 1,5 m³/min G 1/2 820455 A
0,8 – 6,0 m³/min G 3/4 821608 A
b) For the usewith minimal lubrication, connect to a filter-regulator consistingof filter
with water separator and pressure regulator, in connection with a point-of-use oiler
(order no. 378077 A, 1-fold)
Air Consumption Thread Size Order No.
0,05 - 0,5 m³/min G 1/4 822408 A
0,15 – 0,9 m³/min G 3/8 826981 A
0,15 – 1,5 m³/min G 1/2 822409 A
0,8 – 6,0 m³/min G 3/4 826982 A
c) For oil-free operation, connect to a filter-regulator consisting of filter with water se-
parator and pressure regulator.
Air Consumption Thread Size Order No.
0,05 - 0,5 m³/min G 1/4 822408 A
0,15 – 0,9 m³/min G 3/8 826981 A
0,15 – 1,5 m³/min G 1/2 822409 A
0,8 – 6,0 m³/min G 3/4 826982 A
Recommendation: The preferred lubricating methodfor screwdrivers mounted in fixtures,
brackets, machines etc. (in connection with controller) is method b) with point-of-use oiler.
We recommend attaching the screwdriver to a balancer (Recommended Equipment).

7
With regard
to air quality accordingto ISO 8573
-
1 we recommend:
Class Residual Oil Residual Dust Residual Water
content
mg/m³
particle
size
µm
max.
concentration
mg/m³
pressure
dew-point
°C
max.
concentration
g/m³
Lubricated air 4 5 15 8 +3 6
Oil-free air 3 1 5 5 -20 0.88
Illustration 1 - Installation

8
5.1. Recommended Equipment
Balancer
(without vacuum interruption)
Load Range (kg / lbs.) max. Cable Travel
(m / ft.) Weight (kg / lbs.) Order No.
0.0 – 0.5 / 0.0 – 1.1 1.6 / 5.2 0.4 / 0.9 833320 A
0.3 – 1.5 / 0.7 – 3.3 1.6 / 5.2 0.5 / 1.1 833320 B
1.2 – 2.5 / 2.6 – 5.5 1.6 / 5.2 0.6 / 1.3 833320 C
1.5 – 3.0 / 3.3 – 6.6 2.5 / 8.2 0.8 / 1.8 833390 B
Balancer (with vacuum interruption for screwdrivers with screw suction*)
Load Range (kg / lbs.) max. Cable Travel
(m / ft.) Weight (kg / lbs.) Order No.
0.0 – 0.5 / 0.0 – 1.1 1.6 / 5.2 0.6 / 1.3 391366 A
0.3 – 1.2 / 0.7 – 2.6 1.6 / 5.2 0.6 / 1.3 391366 B
1.0 – 2.0 / 2.2 – 4.4 1.6 / 5.2 0.6 / 1.3 391366 C
* Injector is optional equipment
Hose Balancer
Load Range
(kg / lbs.) max. Hose Length (m / ft.)
Hose I.D.
(mm / in.)
Air
Connection Weight (kg / lbs.) Order No.
0.4 – 1.2 / 0.9 – 2.6 1.2 / 2.6 824069 A
1.2 – 2.2 / 2.2 – 4.8 1.3 / 2.8 824069 B
2.2 – 3.0 / 4.8 – 6.6 0.8 / 2.6 5 /
13
/
64
G ¼ 1.4 / 3.0 824069 C
Spiral Hose
Air Consumption
(m³/min / cfm) Hose I.D. (mm / in.) Work Length (m / ft.) Order No.
0.0 – 0.1 / 0.0 – 3.5 4 /
5
⁄
32
0.8 – 2 / 2.6 – 6.6 346697 D
> 0.1 – 0.3 / 3.5 – 11 6 / ¼ 1 –2.5 / 3.3 – 8.2 346697 E
> 0.3 – 0.5 / 11 – 18 6 / ¼ 1 –2.5 / 3.3 – 8.2 346697 F
Injector, Vacuum Pump (for screw suction)
Name
Suction
Volume
(l/min /
cfm)
Vacuum
(bar /
PSI)
Noise
Level
(dB(A)
)
Air Con-
sumption
(l/min / cfm)
Motor
(kW/V/Hz) Order No.
Injector 23 / 0.8 0.8 / 11 52 50 / 1.8 - 326813 A
Double Injector 46 / 1.6 0.8 / 11 52 100/ 3.6 - 354987 A
Vacuum Pump
(oil free) 100 / 3.5 0.85 / 12
62 - 0.25/230/50 360832 A
Use injector always in connection with vacuum interruption.
For more equipment such as spiral hoses for balancers with vacuum interruption, please
see catalog D3340.

9
5.2. Optional Equipment
Name Order No.
Spring sleeve cpl. (without screw suction – in connection with finder) 364672 A
Spring sleeve cpl. (with screw suction – in connection with finder) 364672 C
Handle (torque support, clamping range Dimension Sheet) 410971
Exhaust hose (0.75 m / 2.5 ft.) with air hose (2 m / 6.6 ft.) 413417 A
Pressure hoses, connecting components etc. catalog D 3340
All catalogs are available for download from our web site:
www.deprag.com
Operating Screwdriver with a Finder:
Installation of the finder (optional equipment):
• Remove screw cap (left-hand thread) from spring sleeve.
• Insert finder and pressure spring into spring sleeve.
• Re-attach screw cap onto spring sleeve (left-hand thread).
• Assemble complete spring sleeve package to screwdriver (left-hand thread).
Finder and bit are not included in the delivery capacity of the spring sleeve.
You will find suitable inserting tools
•in our catalog D3320 or
•on the internet as follows: www.deprag.com
→Screwdriving Technology→Selection program: Inserting tools
Assembly- and Spare Parts Drawing SPRING SLEEVE CPL. 364672 A
Assembly- and Spare Parts Drawing SPRING SLEEVE CPL. 364672 C

10
5.2.1 Assembly of Exhaust Hose 413417 A
Mount the exhaust hose as follows:
1. Disconnect screwdriver from air supply.
2. Clamp screwdriver on its pistol grip into a vice.
3. Unscrew the quick release nipple 804289 (AF 19, right-hand thread) and theconnec-
tion piece 407465 (internal hex. AF 10, right-hand thread) fromthe pistol grip.
4. Remove the silencer 408258 from the pistol grip.
5. Mount the supplied o-ring 803368 (34x1.5) onto the connecting piece 413421.
If necessary: Place the o-ring 802521 (22x1.5) into the hose connection 413476 and
the o-ring 802514 (15x1.5) onto the connection piece 413477.
6. Insert the connectingpiece 413421 intothe pistol grip, position the hose connection
413476 onto theconnecting piece and tighten both items by means of the connection
piece 413477 (internal hex. AF 8, right-hand thread).
7. Assemble the hose nozzle 410541 (AF 17, right-hand thread) complete with the
mounted parts onto the connection piece.
8. Slide the exhaust hose over the hose connection 413476.
Assembly- and Spare Parts Drawing EXHAUST HOSE 413417 A

11
5.3. Connection Options for the Pressure Hose
There are 3 options to connect the pressure hose (hose i.d. 6 mm / ¼”) onto the screw-
driver by means of the supplied quick release coupling 804251.
Lower air-inlet (Standard) Installation steps
Always lightly grease the o-rings.
Rear air-inlet
Upper air-inlet
1. Disassemble the cover 407372 (internal
hex. AF 8, right-hand thread) with the
o-ring 802477
2. Assemble the quick release nipple 804289
(AF 19, right-hand thread) with the o-ring
802477 and the seal ring 811332 as nee-
ded (behind or above) onto the pistol grip.
3. Seal off the unused air-inlet of the pistol
grip with the cover 407372 (internal hex.
AF 8, right-hand thread) and the o-ring
802477.
o-ring
802477 cover 407372
o-ring
802477
seal ring
811332 quick release
nipple 804289
cover
407372
o-ring
802477

12
6 Operation
On delivery, the screwdriver is preset to the maximum or customer
-
specific torque value.
For start-up perform the following steps:
1. If needed, adjust clutch to the required torque value. chapter Torque Adjustment
The required torque adjustment can be checked using a torque wrench or
measuring platform (see DEPRAG catalogs D3020 and D3022). This
equipment can also be used to re-adjust thetorque of the screwdriver.
2. If necessary, exchange clutch spring. chapter Range and Exchange of Clutch Spring
IMPORTANT
Tooperate the clutch, using a clutch spring which either surpasses or falls
below its specified torque range, leads to areduction of the torque accu
racy.
3. Mount insertingtool, e.g. bit or socket. chapter Insert or Change Inserting Tool
4. If required, clamp screwdriver into a fixture/bracket/clamping device (clamping area 
Dimensional Drawing).
5. Connect main air hose (hose diameter chapter Technical Data).
The flow pressure must not drop below 5 bar/71 PSI –reduced output!
6.1. Function Description / Driver Start
Direction of Rotation:
The screwdriver is equipped with a reversible motor and a clutch with right shut-off, i.e.
when assembling screws/nuts with right
-hand thread the screwdriver will shut-off after
reaching the preset torque. By reversing the screwdriver to left rotation, screws/nuts can
be loosened. Therebythe maximum torque is available.
Start:
The screwdriver starts by pressing the pusher.

13
6.2. Torque Adjustment
For an external torque adjustment use the following steps:
1. Disconnect screwdriver from air supply.
2. For screwdriver type 346-237U/737U: Insert the supplied key 326240 through the
slot on the pistol grip into the half-round bore of the lock ring.
For screwdriver type 346-337U/437U: Push the supplied key 337691 through the
slot on the pistol grip into the bore of the adjustment nut.
3. If necessary, manually turn clutch by means of inserted tool.
IMPORTANT
By turning the key clockwise (-), the torque is reduced and if turned counter-
clockwise (+), the torque is increased.
Screwdriver type 346-237U/737U Screwdriver type 346-337U/437U
Half-round bore for torque adjustment Bore for torque adjustment
Illustration 2 - Torque Adjustment
key
326240 key
337691

14
6.3. Range and Exchange of Clutch Spring
The torque range of the screwdriver is adjustable. The torque ra
n
ges of the color
-
coded
springs are shown inthe tablebelow.
IMPORTANT
You can onlyuse those clutch springs, which are possible for the respective
torque range of the screwdriver.
TYPE 346-237U and 346-737U
Torque Range of the individual clutch spring:
Part No. Wire ∅Color Torque "min." Torque "max."
353796 4.0 mm Black appx. 3.5 Nm / 31 in.lbs appx. 8/9 Nm / 71/80 in.lbs
353795 3.2 mm Blue appx. 2.0 Nm / 18 in.lbs appx. 4.4 Nm / 39 in.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.
TYPE 346-337U and 346-437U
Torque Range of the individual clutch spring:
Part No. Wire ∅
∅∅
∅Color Torque "min." Torque "max."
328562 5.6 mm White appx. 10.0 Nm / 89 in.lbs appx. 24.0 Nm / 212 in.lbs
328024 5.0 mm Black appx. 6.0 Nm / 53 in.lbs appx. 18.0 Nm / 159in.lbs
328025 3.2 mm Blue appx. 3.0 Nm / 27 in.lbs appx. 6.0 Nm / 53 in.lbs
328026 2.5 mm Green appx. 2.0 Nm / 18 in.lbs appx. 4.0 Nm / 35 in.lbs
All torque values are based on 90-PSI (6.3 bar) air pressure. Torque values are
estimated data which m
ay differ
–
depending on the type of screw joint.
Exchange of Clutch Spring
(

Illustration
3
)
IMPORTANT
To avoid loosing parts, disassemble the machine only on top of a flat work
surface.
1. Disconnect screwdriver from air supply.
2. Unscrew the clutch bearing 400362 A/B (left-hand thread) complete with the spring
sleeve (Optional Equipment).
3. Take out the clutch complete.
4. For screwdriver type 346-237U/737U: Insert the supplied key 326240 into the half-
round bore of the lock ring and turn the key clockwise, until the adjustment nut comes
off.
For screwdriver type 346-337U/437U: Slide the supplied spanner 805491 (AF 11)
over the hex of the clutch shaft and unscrew the adjustment nut by means of the key
800408 (AF 19) (right-hand thread).
5. Pull off the lock ring.
6. Remove the clutch spring, replace with new clutch spring and reassemble the clutch
in reverse order.
7. Insert the clutch into the clutch bearing.
8. Tighten the clutch bearing complete with the spring sleeve onto the screwdriver (left-
hand thread).

15
NOTICE
The claw of the clutch must engage with the clawof the spindle (located in
clutch bearing).
The hex of the clutch shaft must engage with the hex of the spindle
(located in gearing).
Screwdriver type 346-237U and 346-737U Clutch 389748 I
Screwdriver type 346-337U and 346-437U Clutch 396030 A
Illustration 3 - Exchange of Clutch Spring
IMPORTANT
Screw adjustment nut onto clutch shaft until minimum one line of the thread
is visible.
clutch spring
claw of the clutch half-round bore
adjustment nut
hex of the
clutch shaft
claw of the clutch clutch spring
adjustment nut
lock ring
hex of the
clutch shaft

16
6.4. Insert or Change Inserting Tool
IMPORTANT
Use perfect inserting tool (e.g. bits) with DIN 3126 – E6.3 (1/4“) external
hexagon end only.
The screwdriver is equipped with a quick change chuck.
Mount or change the inserting tool as follows:
1. Disconnect screwdriver from air/power supply.
2. If necessary, unscrew spring sleeve (Optional Equipment) or other components (left-
hand thread).
3. Pull the sleeve 351890 forward, the inserting tool can nowbe inserted or removed.
IMPORTANT
Push the insertingtool into the hex of the spindle until it locks.
Illustration 4 - Insert or Change Inserting Tool

17
7 Handling
The operation of the screwdriver is very simple
As soon as you put the screwdriver tool (bit, socket) onto the screw/nut and
actuate the
pusher, the screwdriver will start running.
After reaching the preset torque, the automatic clutch will disengage a
nd turn off the
screwdriver. The screwdriver will be ready for the next operation after releasingthe
pusher.
The operating direction of reversible screwdriver modelscan be reversed by actuating the
reverse handle or the reverse button, in order to loosen tightened screws. The clutch will
be locked in the reverse direction. An increased reaction torque mayoccur in the case of
screws arehard to tighten (such as screws with defective thread).
Illustration 5 - Reversal
direction of rotation as seen
from operator side!

18
8 Maintenance and Upkeep
Incorrect disassembly or assembly can lead to injury of an operator and damage of the ma-
chine. Disassembly and assembly work may only be carried out by DEPRAG or qualified
personnel.
8.1. Lubricants
Use only lubricants approved by the manufacturer.
Air supply-lubrication Gearing-lubrication
Recommended lubricants
for… Name / Order No. Name / Order No.
Standard applications Special oil „DEPRAGOL“
(250 cm³) / 790081 E DEPRAG-grease (100g)
807293
8.2. Wear Parts
Part No. Name Quantity
326240 (TYPE 346-2/737U) Key 1
337691 (TYPE 346-3/437U) Key 1
3269533 Vane 5
801770 O-Ring 1
801942 O-Ring 3
802424 O-Ring 2
802448 O-Ring 1
802476 (TYPE 346-2/737U) O-Ring 1
802477 O-Ring 5
802478 O-Ring 1
802481 (TYPE 346-3/437U) O-Ring 1
802514 O-Ring 2
802522 O-Ring 1
803376 O-Ring 1
807647 O-Ring 1
807721 O-Ring 1
811332 Seal ring 1
824940 O-Ring 1
824941 O-Ring 1
828074 O-Ring 1
831856 O-Ring 1

19
8.3. Maintenance Plan
The first maintenance should be performed after 250,000 cycles with non
-
lubricated
air (dry-running) and after 500,000 cycles with lubricated air (standard operation).
In most cases the service interval may be prolonged. However under unfavorable applica-
tion conditions it mayalso be necessary to reduce the interval. When re-assembling the
screwdriver afterwards, we advise to do about another 30 operating cycles before setting
the required torque, in order to allowa possibleseatingprocess of the internal clutch parts.
IMPORTANT
Make sure to fix the servicing intervals in accordance with the degree of use
of the machine and therespective application.
No. Work to be carried out Cycles Notes
1. Check screwdriver for external
damage Before starting work
2. Check inserting tool for wear
and tear and if it is undamaged Before starting work Replace worn or damaged inserting toolsimmedi
ately.
3. Check the oil level in the oiler
and refill oiler as needed;
if necessary, re-adjust theoiler
Regularly Recommended oil
chapter Lubricants
4. Clean filter of the maintenance
unit, bleedwater condensation
and replace filter if necessary
Regularly Use cold cleaner e.g.
HAKU 1025-810-1
Check wear parts such as
bearings and vanes and
replace parts if necessary
5. Inspection, testing, cleaning
and lubrication (single shift) Dry-running: After 250,000 cycles /
at the latest after 6
months
Standard operation:
After 500,000 cycles /
at the latest after 12
months
Clean and grease motor-,
gearing- and clutch parts
5.1 Check the torque setting For the first time after
50,000 cycles, then at
each maintenance
Use cold cleaner e.g.
HAKU 1025-810-1
5.2 Clean and grease motor-,
gearing- and clutch parts Prior to assembly
Recommended grease
chapter Lubricants
6. Fill approx. 2 - 3 drops of oil into
the air inlet After each cleaning / after assembly Recommended oil chapter Lubricants
7. Check speed and vibration level After assembly chapter Technical Data
If malfunctioning, we recommend sending the machine to DEPRAG.

20
9 Disassembly - Assembly
(

Spare Part Drawing/s
)
WARNING
Machine may start. Severe injuries possible.
Disconnect machinefrom air supply.
CAUTION
Incorrect disassembly/assembly can lead to injury of an operator and
damage of the machine.
Disassembly and assembly work may only be carried out by DEPRAG or
qualified personnel.
NOTICE
When disassembling, parts could be lost or damaged.
Only disassemble the machine on top of a flat work surface.
NOTICE
Damage to motor housing and internal parts possible.
Always use protective chucking jaws when clampingmotor housing (into a
vice).
9.1. Service Tools (Optional Equipment)
Name Order No.
Arbor (to disassemble bearing cover with grooved rotary joint) 462330
Press-in device (for bearing cover and rotor) 462203
Device (to clamp rotor cylinder; disassembly of motor) 4604751
pin (to disassemble/assemble wedge 326946) 460744
Arbor (to assemble circlip 800248) 461292
Pin wrench (for threaded fitting 396582) 462325
Chucking device (to clamp motor housing and valve housing – in order to
tighten the motor package with threaded fitting 396582) 463147
Chucking jaws (to clamp motor housing 400336) 460745
Pin wrench (for ring 407371) 409528
Arbor (to assemble silencer 367913) 462156
Arbor (to assemble bearing needle 802332 into clutch shaft 331562) 460405
Arbor (to assemble o-ring 801770 in pistol grip) 413645
Spanner AF 19 (for quick release nipple 804289) 800408
Spanner AF 22 (for connection piece 407465) 800416
Allen key AF 8 (for cover 407372) 800450
Allen key AF 10 (for connection piece 407465) 800451
Speedometer (to check the screwdriver’s speed) 830390