Aeropro LT50 User manual

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Air Finish nailer LT50 Http://www.aeroprotools.com
Air Nailer (Finish Nailer)
Model No.: LT50
Residual risks
Even when the tool is used as prescribed it is not possible to eliminate all residual risk factors. The
following hazards may arise in connection with the tool’s construction and design:
Damage to lungs if an effective dust mask is not worn.
Damage to hearing if effective hearing protection is not worn.
Health defects resulting from vibration emission if the power tool is being used over longer period of
time or not adequately managed and properly maintained.
Wear eye protection.
2013
2014
OPERATING INSTRUCTIONS FOR FASTENER DRIVING
TOOLS OPERATED BY COMPRESSED AIR
IMPORTANT:
Read all safety rules and operating
Instructions carefully before first use it.
Keep this Manual for future reference.

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Content:
1 Technical data 2.7 Actuating systems
1.1 Fastener 3 Compressed air system
1.2 Accessories 4 Preparing the tool for use
1.3 Description/Features 4.1 Preparing a tool for first operation
1.4 Location of Parts 4.2 Connection to the Compressed air system
2 Special references 4.3 Filling the magazine
2.1 Regulations 4.4 Handling the tool
2.2 Noise emission 5. Maintenance
2.3 information on mechanical impact (vibration) 6 Troubleshooting
2.4 Safety of fastener driving tool 7 explode drawing
2.5 Safety at work 8 Spare parts list
2.6 Triggering devices
1 Technical data
Type of tool ……………………………………………………………… LT50
Activation mode ………………………………………………………single sequential
Outline dimension……………………………………………………………80x280x303mm
Weight (without fasteners)………………………………………………...2.3kgs (5.06Lb)
Required pressure………………………………………………………….70-110PSI (4.8-7.5bar)
Max. pressure………………………………………………………………..120PSI (8.3bar)
Recommended lubricant………………………………………………….white mineral oil 10＃
1.1 Fastener
Fastener size：Ga16 (1.6x1.4mm)
Nail length: 20-50mm
Magazine capacity:90pcs
1.2 Accessories
Hexagon Key
Lubricant
Operating instruction
1.3 Description/Features
Innovative design with light weight
Easily open magazine latch for fast loading by one hand
Continuous operation for high efficiency
Heat treated air inlet plug prolonged the life.
1.4 locations of Parts (see Figure 1)
A-Magazine
B-Safety Yoke
C-Trigger
D-Exhaust Vent
E- Air Quick Coupler
D
D
C
E
B
A

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2. Special references
2.1 Instructions
The following standard is applicable to fastener driving tools; EN792-13:2000+A1:2008”Hand-held
non-electric power tools-safety requirements –Part 13: Fastener driving tools”.
This standard requires that
-only those fasteners which are specified in the operating instructions (see TECHNICAL
DATA)shall be used in fastener driving tools. The fastener driving tool and the fasteners specified
in the operating instructions are to be considered as one unit safety system;
-quick action couplings shall be used for connection to the compressed air system and the
non-sealable nipple must be fitted at the tool in such a way that no compressed air remains in the
tool after disconnection;
-oxygen or combustible gases shall not be used as an energy source for compressed air operated
fastener driving tools;
-fastener driving tools shall only be connected to an air-supply where the maximum allowable
pressure of the tool cannot be exceeded by more than 10%;in the case of higher pressure ,a
pressure reducing valve which includes a downstream safety valve shall be built into the
compressed air supply;
-only spare parts specified by the manufacturer or his authorized representative shall be used in
the repair of fastener driving tools;
-repairs shall be carried out only by the manufacturers authorized agents or by other experts,
having due regard to the information given in the operating instructions.
-stands for mounting the fastener driving tools to a support, for example to a work table, shall be
designed and constructed by the stand manufacturer in such a way that the fastener driving tools
can be safely fixed for the intended use, thus for example avoiding damage, distortion,
displacement.
Special fields of application for the fastener driving tool may require the observance of additional
provisions and regulations.
-only the main energy and lubricants listed in the operating instructions may be used:
-fastener driving tools marked with an inverted equilateral triangle standing on one point may only
be used with an effective safety yoke;
-for the maintenance of fastener driving tools, only spare parts specified by the manufacturer or his
authorized representative shall be used;
-repairs shall be carried out only by agents authorized by the manufacturer or by other specialists,
having due regard to the information given in the operating instructions;
-NOTE: Specialists are those who, as a result by professional training or experience, have
sufficient expertise in the field of fastener driving tools and sufficient familiarity with relevant
govemmental industrial protection provisions, accident prevention regulations, directives and
generally recognized technical regulations(e.g. CEN-and CENELEC-standards),to be able to
assess the safe working condition of fastener driving tools.

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Fig 2
2.2 Noise emission
The characteristic noise values for the fastener driving tool have been determined in accordance with
EN12549:1999 and EN ISO4871”Acoustics-Noise test code for fastener driving tools-Engineering
method”(see Technical Data).
These values are tool-related characteristic values and do not represent the noise development at the
point of use. Noise development at the point of use will for example depend on the working environment,
the work piece, the work piece support and the number of driving operations, etc.
Depending in the conditions at the workplace and the form of the workplace, individual noise attenuation
measures may need to be carried out, such as placing work pieces on sound-damping supports,
preventing work piece vibration by means of clamping or covering, adjusting to the minimum air pressure
required for the operation involved, etc,
It is necessary to wear hearing protection equipment.
2.3 Information on mechanical impact (vibration)
The characteristic vibration values for the fastener driving tool have been determined in accordance with
ISO 8662-11:1999 and EN 12096 –Measurement of vibration in hand-held power tools –Part
11:Fastener driving tools(see Technical Data).
This value is a tool-related characteristic value and does not represent the influence to the
hand-arm-system when using the tool. An influence to the hand-arm-system when using the tool will for
example depend on the gripping force, the contact pressure force, the working direction, the adjustment
of energy supply, the workplace, the work piece support.
2.4 Safety of the fastener driving tool
-Check prior to each operation that the safety and triggering mechanism is functioning properly and
that all nuts and bolts are right.
-Do not carry out any alterations to the fastener driving tool without the manufactures authorization.
-Do not disassemble or make inoperative any parts of the fastener driving tool such as the safety
yoke.
-Do not perform any” emergency repairs” without proper tools and equipment.
-The fastener driving tool should be serviced properly and at regular intervals in accordance with
the Manufacturer’s instructions.
-Avoid weakening or damaging the too, for example by:
punching or engraving;
modification not authorized by the manufacturer
guiding against templates made of hard material such as steel;
use the equipment as a hammer;
applying excessive force of any kind
2.5 Safety at work
Never point any operational fastener driving tool at yourself or at any other person or
animals.
Hold the fastener driving tool during the work operation in such a way that no
injuries can be caused to the head or to the body in the event of possible recoil
consequent upon a disruption in the energy supply or hard areas within the
workplace.（see fig 2）

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Fig 3
Never actuate the fastener driving tool into free space. This will avoid any
hazard caused by free flying fasteners and excessive strain of the tool.
The tool shall be disconnected from the compressed air system for the
purpose of transportation, especially where ladders are used or where an
unusual physical posture is adopted whilst moving(see Fig 3).
Carry the fastener driving tool at the workplace using only the handle, and
never with the trigger actuated.
Take conditions at the workplace into account. Fasteners can penetrate thin work pieces or slip off
corners and edges of workplaces, and thus put people at risk.
For personal safety, use protective equipment such ad hearing and eye protection (see fig 2)
IMPORTANT: DO NOT direct the adjustable vent hole to the operator or other person or animals
during the use.
2.6 Triggering devices
Fastener driving tools are operated by actuating the trigger using finger pressure.
In addition, fastener driving tool is fitted with a safety yoke which enables the driving operation to be
carried out only after the muzzle of the tool is pressed against a work piece, These tool are marked with
an inverted triangle( ) behind the serial number and are not permitted for use without an effective
safety yoke.
2.7 Actuating systems
Depending on their purpose, fastener driving tool is fitted with actuating system of single sequential
actuation and contact actuation.
You could switch to one nail figure to choose single sequential actuation, and switch to two nail figure to
choose contact actuation.
- Single sequential actuation: An actuating system in which the trigger and the safety yoke have to be
activated so the only one single driving operation is actuated via the trigger after the muzzle of the tool
has been applied to the driving location, Thereafter further driving operations can only be performed after
the trigger has been returned to the non driving position whilst the safety yoke remains depressed.
-Contact actuation (restricted version):An actuating system in which the trigger and the safety yoke have
to be actuated for each driving operation, with the order of actuation not being specified .For repeated
driving operations, it is sufficient if either the trigger remains activated and the safety yoke is activated
thereafter, or vice versa.
Fastener driving tools equipped with contact actuation must be marked with the symbol” Do not use on
scaffoldings, ladders’ (see Fig.4) and shall not be used for specific application for example:
-when changing one driving location to another involves the use of scaffoldings, stairs, ladders, or
ladder alike constructions, e.g. roof laths;
-closing boxes or crates;
-fitting transportation safety systems e.g. on vehicles and wagons.
Colours:
Red on white ground,
fastener driving tools and
ladder black
Fig. 4: Symbol” Do not use on scaffoldings, ladders”

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3 .Compressed air system
Proper functioning of the fastener driving tool requires filtered, dry and lubricated compressed air in
adequate quantities.
If the air pressure in the line system exceeds the maximum allowable of the fastener driving tool, a
pressure reducing valve followed by a downstream safety valve shall additionally be fitted in the supply
line to the tool.
NOTE: When compressed air is generated by compressors, the natural moisture in the air
condenses and collects as condensed water in pressure vessels and pipelines. This condensate
must be removed by water separators. These water separators must be checked on a daily basis
and if necessary drained, since corrosion can otherwise develop in the compressed air system
and in the fastener driving tool. Which serves to accelerate wear?
The compressor plant shall be adequately dimensioned in terms of pressure output and performance
(volumetric flow) for the consumption which is to be expected. Line sections which are too small in
relation to the length of the line (pipes and hoses), as well as overloading the compressor, will result in
pressure drops.
Permanently laid compressed air pipelines should have an internal diameter of at least 19 mm and a
corresponding large diameter where relatively long pipelines or multiple users are involved.
Compressed air pipelines should be laid so as to form a gradient (highest point in the direction to the
compressor).Easily accessible water separators should be installed at the lowest points.
Junctions for users should be joined to the pipelines from above,
Connecting points for fastener driving tools should be fitted with a compressed air servicing
unit(filter/water separator/oiler)directly at the junction point.
Oilers must be checked on a daily basis and if necessary topped up with the recommended grade of oil
(see TECHNICAL DATA). Where hose lengths of over 10 m are used., the oil supply for the fastener
driving tool cannot be guaranteed, We therefore recommend that 2to 5drops (depending on the loading
of the fastener driving tool)of the recommended oil (see TECHNICAL DATA) should be added via the air
inlet of the tool, or an oiler attached directly to the fastener driving tool. (see fig 5)
WARNING
Never free-fire the tool at high pressure.

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4. Preparing the tool for use
4.1 Preparing a tool for first time operation
Please Read and observe these Operating Instruction before using the tool. Basic safety measures
should always be strictly followed to protect against damage to the equipment and personal injury to the
user or other people working in the vicinity of operation.
4.2 Connection to the compressed air system
Ensure that the pressure supplied by the compressed air system does not exceed the maximum
allowable pressure of the fastener driving tool. Set the air pressure initially to the lower value of the
recommended allowable pressure (see TECHNICAL DATA).
Empty the magazine to prevent a fastener from being ejected at the next stage of work in the event that
internal parts of the fastener driving tool are not in the starting position following maintenance and repair
work or transportation.
Connect the fastener driving tool to the compressed air supply using suitable pressure hose equipped
with quick-action connectors.
Check for proper functioning by applying the muzzle of the fastener driving tool to a piece of wood or
wooden material and actuating the trigger once or twice.
4.3Filling the magazine
Only those fasteners specified under TECHNICAL DATA (see 1.1) may be used
When filling the magazine, hold the tool so that the muzzle is not pointing towards the operator or any
other person or animals.
4.4 Handling the tool
Pay attention to 2-Special Reference-of these operating instructions.
Having checked that the fastener driving tool is functioning correctly, apply the tool to a work piece and
actuate the trigger.
Check whether the fastener has been driven into the work piece in accordance with the requirements.
- if the fastener is protruding, increase the air pressure in increments of 0.5 bar, checking the
result after each new adjustment;
- if the fastener is driven into an excessive depth reduce the air pressure I increments of 0.5 bar
until the result is satisfactory.
You should endeavor in any event to work with the lowest possible air pressure. This will give you three
significant advantages;
1. Energy will be saved,
2. Less noise will be produced,
3. A reduction in fastener driving tool wear will be achieved.
Avoid triggering the fastener driving tool if the magazine is empty.
Any defective or improperly functioning fastener driving tool must immediately be disconnected from the
compressed air supply and passed to a specialist for inspection.
In the event of longer breaks in work or at the end of the working shift, disconnect the tool from the
compressed air supply and it is recommended to empty the magazine.
The compressed air connectors of the fastener driving tool and the hoses should be protected against
contamination, the ingress of coarse dust chips, sand etc, will result in leaks and damage to the fastener
driving tool and the couplings.

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5. Maintenance
Disconnect the tool from the compressor before adjusting, clearing jams, servicing &maintenance,
relocating and during non operation.
Regular lubrication, if your tool without using the in-liner automatic oilier, place 2 or 6 drops of
pneumatic tool oil into the air inlet before each work day or after 2 hours of continuous use depending in
the characteristic of work piece or type of fasteners.
Air-operated tools must be inspected periodically, and worn or broken parts must be replaced to keep
the tool operating safely and efficiently. Check and change all worn or damaged O-ring, Seals, etc.
Tighten all the screws and caps to avoid personal injury. This should be done by an expert.
Make regular inspection for free movement of trigger, spring and safety mechanism to assure safe
system is complete and functional: no loose and missing parts, no building or stocking parts.
Keep magazine and nose of tool clean and free of any dirt lint or abrasive particles.
When temperatures are below freezing, tools should be kept warm by any convenient, safe method.
6. Troubleshooting (See Table 1)
SYMPTOM
PROBLEM
SOLUTIONS
Air leak near top of tool or
in trigger area
1. O-ring in trigger valve is damaged.
2. Trigger valve head are damage.
3. Trigger valve stem, seal or O-ring are
damaged.
1. Check and replace O-ring.
2. Check and replace.
3.Check and replace trigger valve stem,
seal or O-ring
Air leak near bottom of tool.
1. Loose screws.
2. Worn or damaged O-rings or bumper.
1. Tighten screws.
2. Check and replace O-rings or bumper.
Air leak between body and
cylinder cap.
1. Loose screws.
2. Worn or damaged O-rings or seals.
1. Tighten screw.
2. Check and replace O-rings or bumper.
Blade driving fastener too
deep.
1. Worn bumper.
2. Air pressure is too high.
1. Replace bumper.
2. Adjust the air pressure.
Tool does not operate well:
can not drive fastener or
operate sluggishly.
1. Inadequate air supply.
2. Inadequate lubrication.
3. Worn or damaged O-rings or seals.
4. Exhaust port in cylinder head is
blocked.
1. Verify adequate air supply.
2. Place 2 or 6 drops of oil into air inlet.
3. Check and replace O-rings or seal.
4. Replace damaged internal parts.
Tool skips fasteners.
1. Worn bumper or damaged spring.
2. Dirt in front plate.
3. Dirt or damage prevents fasteners
from moving freely in magazine.
4. Worn or dry O-ring on piston or lack of
Lubrication.
5. Cylinder covers seal leaking.
1. Replace bumper or pusher spring.
2. Clean drive channel on front plate.
3. Magazine needs to be cleaned.
4. O-ring needs to be replaced.
And lubricate.
5. Replace Sealing washer.
Tool jams.
1. Incorrect or damaged fasteners.
2. Damaged or worn driver guide.
3. Magazine or nose screw loose.
4. Magazine is dirty.
1. Change and use correct fastener.
2. Check and replace the driver.
3. Tighten the magazine.
4. Clean the magazine.

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7. Explode Drawing

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8. Spare parts list
No.
Description
Qty.
No.
Description
Qty.
No.
Description
Qty.
1
Bolt
1
29
Bolt M6×20
4
57
Driver Guide Cover
1
2
Air Deflector
1
30
Linder
1
58
Snap Retainer 2.5
1
3
Spring Slice
1
31
O-ring 15×2.65
1
59
Bolt M5*14
2
4
Bolt M5×20
5
32
O-ring 17.4×1.5
1
60
Bolt M5*16
2
5
Spring Washer 5
9
33
Valve Seat
1
61
Driver Guide
1
6
Washer 5
4
34
O-ring 6.2×1.8
1
62
Fixed Magazine
1
7
Cylinder Cover
1
35
O-ring 6.4×2
1
63
Inlay Slice
1
8
O-ring 13.7×2.4
1
36
O-ring 9×1.8
1
64
Movable Magazine
1
9
Washer
1
37
Valve Stem
1
65
Bolt M4*12
1
10
Compressed Spring
1
38
O-ring 2.5×1.5
2
66
Compressed Spring
1
11
O-ring 33.6×2
1
39
Switch Spring
1
67
Pusher
1
12
Switch Valve
1
40
Switch Pipe
1
68
Locating seat
1
13
O-ring 46×2
1
41
O-ring 20.3×2.3
1
69
Bolt M4*6
2
14
O-ring 33.3×3.5
1
42
Switch Seat
1
70
Bolt M4*8
3
15
Main piston
1
43
Trigger Pin
2
71
Spring Washer 4
3
16
Collar
1
44
O-ring 1.7*2
2
72
Fixed Seat
1
17
Fixed ring
1
45
Trigger
1
73
Pin
1
18
O-ring 63×2.5
3
46
Safety Space
1
74
Spring
1
19
O-ring 42.5×2.5
1
47
Pin 3×16
1
75
hook
1
20
Cylinder
1
48
Safety Yoke
1
76
Nut M5
1
21
Bumper
1
49
Bolt
1
77
Washer
2
22
Plate
1
50
Compressed Spring
1
78
Handle Sheath
1
23
Cylinder Cover Washer
1
51
Nut M4
1
79
Gasket
1
24
Gun Body
1
52
Safety Stand
1
80
End cap
1
25
Washer
1
53
Safety Stand Case
1
81
Bolt M5*18
3
26
O-ring 41×1.6
1
54
Pin
1
82
Air inlet plug
1
27
Cover Plate
1
55
Quick Release Handle
1
83
Air inlet plug cover
1
28
Spring Washer 6
4
56
Pin A4*20
1
84
O-ring 1.9*1.1
1
Note:if you need spare parts of this model, please feel free to contact us or the distributor where you bought
this tool. Thanks!