Beswell BW-112F2 User manual

INSTRUCTION
MANUAL
IMPORTANT:
Upon receipt of the product, read
and follow all safety rules, operating
instructions before first use it. And
retain this manual for future reference.
Contain:
◎Technical Data
◎Important safety rules
◎Operating Instructions
◎Maintenance
◎Trouble Shooting
◎Parts List
1/2” Air Composite Impact Wrench(Twin Hammer)
Model No.:BW-112F (BW-112E,BW-112B,BW-112J),
BW-112F2 (BW-112E2,BW-112B2,BW-112J2)
BW-134F1(BW-134E1,BW-134B1,BW-134J1)

※Technical Data
Square drive……………………………………………………………………………………1/2”/13mm
Free speed………………………………………………………………………………………8,500rpm
Working Torque ………………………………………………………………………737.5 ft-lbs/1000N.M)
Working Torque (BW-134F1)…………………………………………………………811ft-lbs/1100 N.M)
Max Loosening torque in Reverse……………………………………………………1100ft/lb(1492N.m)
Max Loosening torque in Reverse(BW-112F2)……………………………………1062ft/lb(1442N.m)
Max Loosening torque in Reverse(BW-134F1)………………………………………1150ft/lb(1560N.m)
Avg. air consumption…………………………………………….………………………6.cfm (170 L/min)
Standard Operating pressure……………………………………………………………….90psi(6.3bar)
Air inlet size…………………………………………………………………………………….1/4”(6.35mm)
Air Hose (ID)…………………………………………………………………………………….3/8”（10 mm）
Weight……………………………………………………………………………………….4.62Lbs (2.1 kgs)
Weight(BW-112F2)………………………………………………………………………3.6Lbs(1.65 kgs)
Standard Bolt Capacity ………………………………………………………………………..5/8” (16mm)
EN ISO 15744:2008 & EN ISO 4871 & EN ISO 11148-6:2012
A weighted sound pressure level……………………………………………………89.9dB(A), k=3dB(A)
Sound power level……………………………………………………………………100.9dB(A) , k=3dB(A)
ISO 28927-2 & EN 12096
Vibration in the handle………………………………………………………….…… 6.847m/s2,k=1.5m/s2
※Important Safety Rules
1. Always wear safety goggles or glasses.
2. Always ensure machine is switched off before connecting to air supply.
3. Disconnect any machine from the air supply before changing blades or discs, and before servicing any
type of machine.
4. Always keep your air tool clean and lubricated. Daily lubrication is essential to avoid internal corrosion
and possible failure.
5. Do not wear watches, rings bracelets or loose clothing when using air tools.
6. Using only light weight coil hoses from a tool to the wall or compressor coupling. Do not fit quick
change couplings onto the machine as vibration can cause the coupling to fail.
7. Do not overload the machine. Allow the tool to operate at its optimum speed for maximum efficiency.
8. Do not increase the air pressure above the manufacturers recommended level, as excessive overload
can cause the machine casing to split. Also this creates excessive wear on moving parts and possible
failure.
9. In the interests of safety and possible damage to the machine/operator, always ensure that the
machine has stopped before putting it down after use.
10. Always ensure that the workpiece is firmly secured leaving both hands free to control the machine.
11. Always ensure that the accessories such as blades, discs, sockets, etc. are designed for use with the
machine. Also correctly and securely fastened before connecting the machine to the air supply.
12. When grinding, sanding or cutting always wear an appropriate face mask or respiratory equipment.

※Operating Instruction
Description
1/2” twin hammer mechanism composite air impact wrench, working torque for most of automotive
repairing job or garage working;1492 N.M of ultimate max loosening torque in reverse, twin hammer
mechanism is durable and quickly remove stubborn bolts under tough working conditions,Sealed in oil
bath lubrication keeps impact mechanism lubricated for less wear, Robust Fiberglass reinforced
composite housing helps insulate users’ hand from cold and Reduce vibration for less user fatigue, 6
vane rotor provides faster motor start up and greater performance with high torque,Three torque setting in
forward, Full Power torque in reverse, Full teasing trigger for improved operator control, best power to
weight ratio in economic cost.
Air supply
1. Ensure wrench air valve (or trigger) is in the “off” position before connecting to the air supply.
2. You will require an air pressure of 90psi, and an air flow according to specification.
3. WARNING! Ensure the air supply is clean and does not exceed 90psi while operating the wrench.
Too high an air pressure and unclean air will shorten the product life due to excessive wear, and may
be dangerous causing damage or personal injury.
4. Drain the air tank daily. Water in the air line will damage the wrench.
5. Clean air inlet filter weekly.
6. Line pressure should be increased to compensate for unusually long air hoses (over 8 metres). The
minimum hose diameter should be 3/8” I.D. and fittings must have the same inside dimensions.
7. Keep hose away from heat, oil and sharp edges. Check hose for wear, and make certain that all
connections are secure.
Lubrication
An automatic in-line filter-regulator-lubricator is recommended (Fig4) as it increases tool life and keeps
the tool in sustained operation. The in-line lubricator should be regularly checked and filled with air tool
oil.
Proper adjustment of the in-line lubricator is performed by placing a sheet of paper next to the exhaust
ports and holding the throttle open approximately 30 seconds. The lubricator is properly set when a light
stain of oil collects on the paper. Excessive amounts of oil should be avoided.
In the event that it becomes necessary to store the tool for an extended period of time (overnight,
weekend, etc.), it should receive a generous amount of lubrication at that time. The tool should be run for
approximately 30 seconds to ensure oil has been evenly distributed throughout the tool. The tool should
be stored in a clean and dry environment.
It is most important that the tool be properly lubricated by keeping the air line lubricator filled and
correctly adjusted. Without proper lubrication the tool will not work properly and parts will wear
prematurely.
Use the proper lubricant in the air line lubricator. The lubricator should be of low air flow or changing
air flow type, and should be kept filled to the correct level. Use only recommended lubricants,

specially made for pneumatic applications. Substitutes may harm the rubber compounds in the tools
O-rings and other rubber parts.
IMPORTANT!!!
If a filter/regulator/lubricator is not installed on the air system, air operated tools should be lubricated at
least once a day or after 2 hours work with 2 to 6 drops of oil, depending on the work environment,
directly through the male fitting in the tool housing.
Assembly,Loading and operation
WARNING: Ensure you read, understand and apply safety instructions before use.
As a standard practice,drain walter from the air compressor tank and air lines prior to use
each day(reference your compressor operators manual for detailed instructions)
1. Remove the air inlet protective cap (Fig 1) FIG 6
2. Thread the male plug by hand into the inlet bushing (Fig 2)
male plug should have seal tap on its male threads.
3. Add 2-3 drops oil into male plug before each use (Fig 3)
4. Connect to air source with quick coupler (Fig 4)
5. Insert the sockets on socket retainer (Fig 5)
Attention:Only use sockets which are specifically designed for use with this tool.
6. One thing shall make sure the direction of rotation before actuate this tool.
The Three Circles indicts Foreword and the One Circle indicts reverse. Forward is
defined as clockwise direction seen from the operator’s position.(FIG 6)
7. Torque adjusting: Forward torque have 3 steps (small circles to big circles) on
right side with Three Circles mark; Reverse torque have only one step on left side
with One Circle mark (FIG 6)
DO NOT use any additional force upon the tool in order to work
DO NOT allow tool to free run for an extended period of time
as this will shorten its life.
Turn on the air compressor and allow it to build up pressure once
all of jobs done.Adjust the air compressor’s regulator or the supply line
regulator to 90PSI.Squeeze trigger gently.
FIG1 FIG2 FIG3 FIG4 FIG5
※Maintenance

WARNING: Disconnect wrench from air supply before changing accessories, servicing or performing
maintenance. Replace or repair damaged parts. Use genuine parts only. Non-authorised parts may be
dangerous
1. Lubricate the air wrench daily with a few drops of air tool oil dripped into the air inlet
2. DO NOT use worn, or damaged sockets.
3. Loss of power or erratic action may be due to the following:
a) Excessive drain on the air line. Moisture or restriction in the air pipe. Incorrect size or type of hose
connectors. To remedy check the air supply and follow instructions .
b) b) Grit or gum deposits in the wrench may also reduce performance. If your model has an air strainer
(located in the area of the air inlet), remove the strainer and clean it..
4. When not in use, disconnect from air supply, clean wrench and store in a safe, dry, childproof location.
WARNING: before you store air impact wrench after working, please add 2 to 3 drops oil into
tools,run the tools for 25 to 30 seconds after lubricating, it will ensure the oil lubrications will be distributed
through out the tools completely,
WARNING: when you assembly tools,please make sure rear4 bolts (Right picture) will
be tighten equally through Plum blossom head rice type hands wrench.
※Trouble Shooting
The following form lists the common operating system with problem and solutions. Please read the
form carefully and follow it.
WARNING: If any of the following symptoms appears during your operating, stop using the tool
immediately, or serious personal injury could result. Only a qualified persons or an authorized service
center can perform repairs or replacement of tool.
Disconnect tool from air supply before attempting repair or adjustment. When replacing O-rings or
Cylinder, lubricate with air tool oil before assembly.
PROBLEMS POSSIBLE CAUSES REMEDIES
Tool runs at normal speed
but loses under load
■. Motor parts worn.
■Cam clutch worn or
sticking due to lack of
lubricant.
GREASE LUBRICATED:
■Lubricate clutch housing.
■Check for excess clutch oil. Clutch cases
need only be half full. Overfilling can
cause drag on high speed clutch parts, ie.
a typical oiled/lubricated torque wrench
requires 1⁄2 ounce of oil.
NOTE: Heat usually indicates insufficient
grease in chamber. Severe operating
conditions may require more frequent
lubrication.
Have a qualified service technician replace
the worn motor parts.

Tool runs slowly. Air flows
slightly from exhaust
■Motor parts jammed with
dirt particles
■Power regulator in closed
position
■Air flow blocked by dirt.
■Check air inlet filter for blockage.
■Pour air tool lubricating oil into air inlet
as per instructions.
■Operate tool in short bursts quickly
reversing rotation back and forth where
applicable.
■Repeat above as needed.
Tools will not run. Air flows
freely from exhaust
■Oneormoremotorvanes
stuck due to material build
up.
■Pour air tool lubricating tool into air inlet.
■Operate tool in short bursts of forward
and/or reverse rotation where applicable.
■Tap motor housing gently with plastic
mallet.
■Disconnect supply. Free motor by
rotating drive shank manually where
applicable
Tool will not shut off ■‘O’ rings throttle valve
dislodged from seat inlet
valve.
■Replace ‘O’ ring.
Note: Repairs should be carried out by a qualified person.
Spare Parts Drawing

Parts List
Sep 27th,2018
NO. ASSY NO. DESCRIPTION Q'TY NO. ASSY
NO. DESCRIPTION Q'TY
1 A Press-Oiling Cup 1 25 End cap screw 1
2 A Hammer Case 1 26 ESteel ball spring 1
3A Bushing 127 ESteel Ball 1
4B Retainer 128 DTrigger Pin 2.5x2.4 1
5B O-ring 129 DPin 2.5x30 1
6B Anvil 130 DO-ring 3x1 1
7 B Hammer Pin 131 D Exhaust Deflector 1
8 B Hammer Frame 132 DWasher 1
9 B Hammer Dog 233 DIntake Gasket 1
10 C Bearing 134 DThrottle valve 1
11 C Front Cylinder Plate 135 DThrottle 1
12 C Rotor 136 DThrottle Spring 1
13 C Pin 137 DO-ring 2
14 C Cylinder 1 38 DAir inlet 1
15 C Rear Cylinder Plate 1 39 CRotor Blade 6
16 C Bearing 1 40 DTrigger 1
17 D Gasket 1 41 DO-ring 3x1 1
18 Front Seal washer 1 42 D Trigger Spring 1
19 D Housing 1
20 E Rear Seal Washer 1 NS-A Hammer Case Kit 1
21 E O-ring 1 NS-B Anvil Kit 1
22 E Reverse Switch 1 NS-C Cylinder Kit 1
23 E O-ring 52.7 x 1.8mm 1 NS-D Housing Kit 1
24 E End cap 1 NS-E Rear Cover Kit 1

EC DECLARATION OF CONFORMITY
DECLARAÇÃO CE DE CONFORMIDADE
Manufacturer : Taizhou Beswell Machinery Co.,Ltd.
(Fabricante) :JingQi Road,Economic Development Zone,Taizhou
(Morada) ZHEJIANG,CHINA
Declares, that the product(s)
Declara que os produtos
Product Name : AIR IMPACT WRENCH
(Nome do produto)
Model Number(s) : BW-112F,BW-112E, BW-112B, BW-112E2, BW-112F2, BW-112B2, BW-112E3,
BW-112F3, BW-134E1, BW-134F1, BW-134B1, BW-134E2, BW-134F2, BW-134B2,BW-112J, BW-112M,
BW-134H, BW-112K, BW-112N2, BW-112X, BW-134N, BW-112V, BW-112S, BW-112U, BW-134J,
BW-134K,BW-112C
Conform(s) the following standarts and/or product specifications,
Estão em conformidade com as seguintes normas
Relevant Standard(s) : EN ISO 11148-6:2012
Hand-held Non-electric Power Tools-Safety Requirements-
Part6:Assemblypowertoolsforthreadedfasteners
Specification(s)/Directive(s) ZEK01.04-08/11.11
the Machinery Directive 98/37/EC
the Machinery Directive 2006/42/EC
Date : 23 / April / 2018
Authorized Signature :
(Assinatura)
Taizhou Beswell Machinery Co.,Ltd