WilTec 61134 User manual

Operation Manual
Air Impact Wrench
61134
Illustration similar, may vary depending on model
Read and follow the operating instructions and safety information before using for the first time.
Technical changes reserved!
Due to further developments, illustrations, functioning steps and technical data can differ insignificantly.
Updating the documentation
If you have suggestions for improvement or have found any irregularities, please contact us.

© by WilTec Wildanger Technik GmbH Item 61134 Page 2
http://www.WilTec.de
http://www.aoyue.eu 05 2021-1
http://www.teichtip.de
The information contained in this document may alter at any time without previous notice. It is prohibited
to copy or spread any parts of this document in any way without prior written allowance. All rights re-
served.
The WilTec Wildanger Technik GmbH cannot be held accountable for any possible mistakes in this
operating manual, nor in the diagrams and figures shown.
Even though, the WilTec Wildanger Technik GmbH has undergone biggest possible efforts to ensure
that the operating manual is complete, faultless and up to date, mistakes cannot be entirely avoided.
If you should find a mistake or wish to make a suggestion for improvement, we look forward to hearing
from you.
Send an e-mail to:
[email protected]
or use our contact form:
https://www.wiltec.de/contacts/
The most recent version of this manual in various languages can be found in our online shop via:
https://www.wiltec.de/docsearch
Our postal address is:
WilTec Wildanger Technik GmbH
Königsbenden 12
52249 Eschweiler
Germany
Do you wish to pick goods up? Our pick-up address is:
WilTec Wildanger Technik GmbH
Königsbenden 28
52249 Eschweiler
Germany
To shorten the waiting time and allow for a rapid on-site transaction, we ask you to call us previously or
placing your order via the webshop.
E-mail: [e-mail]
Tel:[phone]
Fax: [phone]
To return orders for exchange, repair or for other purposes, please use the following address. Attention!
To allow for a smooth execution of your complaint or return, it is important to contact our customer
service team before returning the goods.
Returns Department
WilTec Wildanger Technik GmbH
Königsbenden 28
52249 Eschweiler
E-mail: [email protected]o
Tel:[phone]
Fax: [phone]

© by WilTec Wildanger Technik GmbH Item 61134 Page 3
http://www.WilTec.de
http://www.aoyue.eu 05 2021-1
http://www.teichtip.de
Introduction
Thank you for purchasing this quality product. To minimize the risk of injury we urge that our clients
take some basic safety precautions when using this device. Please read the operation instruc-
tions carefully and make sure you have understood its content.
Keep these operation instructions safe.
Important safety instructions
Instructions pertaining to a risk of fire, or injury to persons.
WARNING!
•Keep the work area clean and well lit. Cluttered benches and dark areas increase risk of electric
shock, fire and injury to persons.
•Do not operate tool in explosive atmospheres, such as in the presence of flammable liquids,
gases or dust.
•Keep bystanders, children and visitors away while operating the tool. Distractions may result in
personal injury and/or injury of others.
Personal safety
•Always wear eye protection. Operator and others within work area should always wear approved
safety goggles with side shields. Eye protection is used to guard against flying fasteners and
debris, which may cause severe eye injury.
•Always wear hearing protection when using the tool. Extended exposure to high intensity noise
may cause hearing loss.
•Use safety equipment. A dust mask, non-skid safety shoes and a hard hat must be used for the
applicable conditions.
•Do not wear loose fitting clothing or jewellery. Use a helmet for long hair. These items can get
caught in moving parts, causing serious personal injury.
•Stay alert, pay attention to what you are doing, and never operate the tool while being tired or
under the influence of drugs, alcohol or medication. A moment of inattention while operating the
tool increases the risk of injury to persons.
•Remove adjusting keys and wrenches before switching the tool on. A wrench or a key that is
left attached to a rotating part of the tool increases the risk of injury to persons.
•Keep proper footing and balance at all times. Do not use on a ladder or an unstable support.
Proper footing and balance enable better control of the tool in unexpected situations.
•Make sure the hose is free of obstructions or snags. Entangled or snarled hoses can cause loss
of balance or footing and may become damaged resulting in possible injury.
•Do not attach the hose or tool to your body. Attach the hose to the structure to reduce the risk
of loss of balance if the hose shifts.
•Avoid unintentional starting. Be sure the switch is off before connecting the air supply. Do not
carry the tool with your finger on the switch or connect the tool to the air supply when switched
on.
•Wash hands after handling.
Safety of use and care of the tool
•Get to know this tool. Read the manual carefully, learn its application and limitations, as well as
the specific potential hazards related to this tool.
•Do not force the tool. Use the correct tool for the application. The correct tool will do the job
better and safer at the rate for which it has been designed for.
WARNING! Disconnect the tool from the air source before making any adjustments, changing
accessories or before storing the tool. Such precautionary measures reduce the risk of injury to
persons.

© by WilTec Wildanger Technik GmbH Item 61134 Page 4
http://www.WilTec.de
http://www.aoyue.eu 05 2021-1
http://www.teichtip.de
•Check for misalignment or binding of moving parts, breakages and any other conditions that
may affect the tool in its operation and safety. Damaged tools must be repaired before using
them. Many accidents are caused by poorly maintained tools. There is a risk of bursting if the
tool is damaged.
•Store the tools in a secure place when not in use and keep them out of the reach of children
and other untrained persons. A tool is dangerous in the handy of untrained users.
•A work piece held by hand or against the body is unstable, which may lead to a loss of control.
•Keep the tool and its handle dry, clean and free from oil and grease. Always use a clean cloth
when cleaning it. Never use brake fluids, gasoline, petroleum-based products or any strong
solvents to clean your tool.
•Do not use the tool as hammer.
•Never use gasoline or flammable liquids to clean the tool. Never use the tool in the presence of
flammable liquids or gases. Vapours can be ignited by a spark and cause an explosion that will
result in death or serious personal injury.
•Do not remove or manipulate the trigger. Never cause the trigger lock to become inoperable.
Do not operate any tool which has been modified in any way. Serious personal injury or even
death can be the result.
•Never use the tool if the switch does not work. Any tool that cannot be controlled by the switch
is dangerous and must be repaired before using it again.
•Always fit the tool with a fitting or hose coupling on or near the tool so that all compressed air is
discharged at the same time when the fitting or hose coupling is disconnected. Do not use a
check valve or any other fitting that allows the air to remain within the tool. Serious personal
injury or even death might be the result.
•Never carry the tool by the air hose or pull the hose to move the tool away from a compressor.
Keep hoses away from heat, oil and sharp edges. Replace any hose that is damaged, weak or
worn. Otherwise this might result in personal injury or damage to the tool.
•Do not drop or throw the tool. Dropping or throwing the tool can result in damage that will make
the tool unusable or unsafe. If the tool has been dropped or thrown, examine it closely for bent,
cracked or broken parts or any air leaks. If the tool has any damages, it must be repaired before
being used again to avoid taking serious injuries.
•Clean and check all air supply hoses and fittings before connecting the tool to an air supply.
Replace any damaged or worn hoses or fittings. This will reduce tool performance or its dura-
bility.
•Do not use the tool if it leaks air or does not function properly.
•Do not operate the tool if it does not contain a legible warning label.
Safety of tool service
•Use only accessories that are allowed by the manufacturer.
•When servicing a tool, only use original spare parts.
•Only use supplied lubricants specified by the manufacturer.
•Tool service must only be performed by the manufacturer or an authorized service partner.
Safety of operation
•The amount of actual torque may vary depending on the cleanliness and condition of threads
and other factors.
•The warnings and precautions discussed in this manual cannot cover all possible conditions
and situations that may occur. Always be aware and cautious while working with the tool.
•Only use it with accessories that are rated to handle the forces exerted by this tool during oper-
ation. Other accessories which are not designed for the generated forces may break and force-
fully launch pieces.
•Attach all accessories properly to the tool before connecting the air supply. A loose accessory
may detach or break during operation.
•Obey the manual for the air compressor used with this power tool.
•Install an in-line shut-off valve to allow immediate control over the air supply in an emergency,
even if a hose is ruptured.

© by WilTec Wildanger Technik GmbH Item 61134 Page 5
http://www.WilTec.de
http://www.aoyue.eu 05 2021-1
http://www.teichtip.de
•Use this tool with both hands only. Using tools with only one hand can result in loss of control.
•Do not lay down the tool until it has come to a complete stop. Moving parts can grab the surface
and pull the tool out of your control.
•Always handle the tool with care:
◦This tool is a working implement; only use it as such.
◦Never pull the trigger unless nose is directed toward the work.
◦Keep others in a safe distance from the tool while the tool is in operation as accidental
actuation may occur possibly causing injury.
Safety of air supply and connections
•Do not use any type of reactive gases like oxygen carbon dioxide and combustible gases as a
power source. Use filtered, lubricated, regulated compressed air only. Use of a reactive gas
instead of compressed air may cause the tool to explode which will cause death or serious
personal injury.
•Only use a pressure-regulated compressed air source to limit the air pressure supplied to the
tool. The regulated pressure must not exceed 90 psi. If the regulator fails, the pressure must
not exceed 90 psi. The tool could explode which will cause death or serious personal injury.
•Always disconnect air source:
◦before making adjustments;
◦when servicing the tool;
◦when the tool is not in use;
◦when moving to a different work area as accidental actuation may occur causing injury.
•Never connect the tool to an air source that may exceed 90 psi. Over pressurizing the tool may
result in bursting, abnormal operation, breakage of the tool as well as serious personal injury.
Use only clean, dry, regulated compressed air at the rated pressure or within the rated pressure
range as marked on the tool. Always verify prior to using the tool that the air source has been
adjusted to the rated air pressure or within the rated air-pressure range.
Technical specifications and accessories
Square drive
(inch)
Idle speed
(rpm)
Max. torque
(Nm)
Air consump-
tion (ℓ⁄min)
Air inlet (inch)
Max. air pres-
sure (bar)
½
7000
320
(236.02 ft-lb)
140
(5 cfm)
¼
6
(87.02 psi)
•1× impact wrench
•1× quick coupling
•1× oiler
•1× extension
•1× 4 mm hexagon socket wrench
•1× transport case
•10× sockets

© by WilTec Wildanger Technik GmbH Item 61134 Page 6
http://www.WilTec.de
http://www.aoyue.eu 05 2021-1
http://www.teichtip.de
Main components of ½″air impact wrench
Letter
Name
A
Anvil
B
Control valve
C
Trigger
D
Air regulator
E
Air inlet
Operating procedures
Setting up the air source
•The ½″air impact wrench is designed to operate on clean, dry, compressed air, regulated at
90 psi. The preferred system would include a filter, a pressure regulator and an automatic oiler
located as close to the tool as possible. Within 15 feet (4.5 m) is ideal. Do not use bottled air or
gases (see Fig. 2).
№
Name
№
Name
1
Air impact wrench
5
Lubricator
2
Quick coupling
6
Filter
3
Air hose
7
Air inlet
4
Regulator
All compressed air contains moisture and other contaminants that can harm the internal components of
the tool. An air filter will remove most of these and significantly extend the life of the tool. Ensure the in-
line oiler has sufficient oil. If an in-line oiler is not available, place 2 drops of oil into the air inlet of the
tool at the beginning of each workday. More than this will be expelled from the exhaust of the tool during
using (Fig. 3).

© by WilTec Wildanger Technik GmbH Item 61134 Page 7
http://www.WilTec.de
http://www.aoyue.eu 05 2021-1
http://www.teichtip.de
•Air fitting: The ½″air impact wrench should be equipped with a ¼″NPD male quick connector
(not included). To prevent accidental cycling even though disconnected, the tool must always
be connected to the air supply in a way that all air pressure within the tool is released when the
coupling is disconnected.
Caution!
•All air pipe components (including hoses, pipe, connectors, filters, regulators etc.) must be rated
for a working pressure of 90 psi.
•Disconnect the tool from the air supply before performing maintenance, leaving the work area,
moving the tool to another location or handing it to another person.
Preparing the tool
•Drain water from the air compressor tank and any condensation from air lines. (Please refer to
the operation manual of the air compressor)
•Lubricate the tool. (Please refer to the maintenance section in this manual)
•Select the necessary impact sockets. (The sockets must match the size of the drive on the air
impact wrench.)
•Connect air impact wrench to the air source using the recommended hose size.
Caution!
•Keep the tool pointed away from yourself and any other person at all times.
•Never use a tool that leaks air or needs repair.

© by WilTec Wildanger Technik GmbH Item 61134 Page 8
http://www.WilTec.de
http://www.aoyue.eu 05 2021-1
http://www.teichtip.de
Operating the tool
1. Remove plastic air inlet protective cap from air inlet as
shown in Fig. 4.
2. Prepare a ¼″male plug (not included) by applying seal-
ant tape to the threading, wrapping clockwise. Screw
threaded male air plug by hand into air inlet as shown
in Fig. 5 and tighten it with a wrench (not included) for
an airtight connection.
Note: Do not overtighten! Sealant tape must be
used on this connection.
3. Push the control valve forward so that the end of the
valve protrudes out above the trigger for a clockwise
(“forward”) tool operation.
4. Push the control valve back so that the end of the valve
protrudes from the back of the housing for counter-
clockwise (“reverse”) tool operation.
5. Adjust the air flow by pushing down the air regulator
and turning knob from positions 1 to 4 (Fig. 2), aligning
the desired number setting with the recessed arrow
(Pos. 1 = lowest amount of air flow; pos. 4 = highest
amount of air flow).
6. Push and snap the required ½″drive impact socket (not
included) onto the anvil.
Caution!
•Keep tool pointed in a safe direction at all times.
•Only use impact rated accessories with this tool. Other accessories may shatter, chip or crack
during operation.
•Clean and inspect the tool daily. Carefully check for proper operation of trigger and safety mech-
anism. Do not use the tool unless both the trigger and safety mechanism are functional, if the
tool is leaking air or needs any other repair.
Maintenance
Regular maintenance
•Clean and inspect the tool daily. Make sure the tool is disconnected from the air supply.
•Blow the tool clean with compressed air and inspect for wear and damage. Use non-flammable
cleaning solutions to wipe the exterior of the tool, only if necessary. DO NOT SOAK the tool
with cleaning solutions. Such solutions can damage internal parts.
•Inspect the trigger and the safety mechanism to ensure the system is complete and functional.
Check for loose or missing parts as well as parts that may be stuck.
•Keep all screws tight. Loose screws may cause personal injury.
•Place two or three drops of pneumatic oil (included) into the air inlet of the tool daily.

© by WilTec Wildanger Technik GmbH Item 61134 Page 9
http://www.WilTec.de
http://www.aoyue.eu 05 2021-1
http://www.teichtip.de
Before each use
Inspect the general condition of the tool. Check for
•loose hardware or housing;
•misalignment or binding of moving parts;
•cracked or broken parts;
•any other condition that may affect its safe condition.
Daily: air supply maintenance
Every day, maintain the air supply according to the component manufacturers’
instructions. Maintain the lubricator oil level. Drain the moisture filter regularly.
Performing routine air supply maintenance will allow the tool to operate more
safely and will also reduce wear on the tool.
Weekly: lubrication
Add a high-quality machine oil to the oil inlet by removing the oil screw (Fig. 7).
Quarterly (every 3 months): tool disassembly, cleaning and inspection
Have the internal mechanism cleaned, inspected and lubricated by a qualified
technician.

© by WilTec Wildanger Technik GmbH Item 61134 Page 10
http://www.WilTec.de
http://www.aoyue.eu 05 2021-1
http://www.teichtip.de
Troubleshooting
Problem
Possible cause
Solutions
Decreased
output.
Not enough air pressure and/or
air flow.
Check for loose connections and make sure that
air supply is providing enough air flow at required
pressure to the tool air inlet. Do not exceed
maximum air pressure.
Obstructed trigger.
Clean around trigger to ensure free movement.
Incorrect lubrication or not
enough lubrication.
Lubricate using air tool oil according to prior in-
structions.
Blocked air inlet screen (if
equipped).
Clean air inlet screen of build-up.
Air leaking from loose housing.
Make sure housing is properly assembled and
tight.
Mechanism contaminated.
Let a qualified technician clean and lubricate the
mechanism. Install in-line filter in air supply as
stated in “Setup Air Supply.”
Severe air
leakage.
(Slight air leak-
age is normal,
especially on
older tools.)
Cross-threaded housing com-
ponents.
Check for incorrect alignment and uneven gaps.
If cross-threaded, disassemble and replace
damaged parts before using the tool.
Loose housing.
Tighten the housing assembly. If housing cannot
be tightened properly, internal party might be
misaligned. A technician needs to disassemble
the tool, align parts and reassemble.
Damaged valve or housing.
Replace damaged components.
Dirty, worn or damaged valve.
Clean or replace valve assembly.
Housing heats
during use.
Incorrect lubrication or not
enough lubrication.
Lubricate using air tool oil according to prior in-
structions.
Worn parts.
Let a qualified technician inspect the internal
mechanism and replace parts as needed.

© by WilTec Wildanger Technik GmbH Item 61134 Page 11
http://www.WilTec.de
http://www.aoyue.eu 05 2021-1
http://www.teichtip.de
Exploded view
Warning! Repairs must only be made by an authorized service partner or the manufacturer. Do not
open or disassemble the power tool.

© by WilTec Wildanger Technik GmbH Item 61134 Page 12
http://www.WilTec.de
http://www.aoyue.eu 05 2021-1
http://www.teichtip.de
Parts list
№
Description
№
Description
1
Protecting rubber
23
Washer
2
Housing
24
Screw
3
Screw
25
Rubber
4
Anvil bushing
26
Screw
5
Anvil collar and seal
27
Exhaust deflector
6
O-ring
28
Screw
7
Anvil (½″sq)
29
Spring
8
Hammer pin
30
Pin
9
Hammer dog
31
Trigger
10
Hammer cage
32
Pin
11
Drive cam
33
Screw
12
Ball bearing
34
Spring
13
Front end plate
35
O-ring
14
Rotor blade
36
Air regulator
15
Rotor
37
Valve stem
16
Pin
38
Steel ball
17
Cylinder
39
Spring
18
Pin cylinder
40
Hose adapter
19
Rear end plate
41
Valve sleeve
20
Ball bearing
42
Reverse valve
21
Rear gasket
43
Bushing
22
Rear cover
Important notice:
The reprint or reproduction, even of excerpts, and any commercial use, even in part of this instructions
manual require the written permission of WilTec Wildanger Technik GmbH.