Matco MT2138 Product manual

MT2138 1 09/02/10
Some dust created by power sanding, sawing, grinding, drilling, and other construction
activities contains chemicals known to cause cancer, birth defects or other reproductive
harm. Some examples of these chemicals are:
 
 
 
Your risk from these exposures varies, depending on how often you do this type of
work. To reduce your exposure to these chemicals: work in a well ventilated area, and
work with approved safety equipment, such as those dust masks that are specially
designed to filter out microscopic particles.
MT2138
Square Drive ..................................... 3/8"
Breakaway Torque ............................370 Ft. Lbs.
Free Speed ................................ 11,500 RPM
Air Inlet ..................................... 1/4" NPT
Sound Pressure Level ...........................93.5 dBA
Net Weight.................................... 2.4 Lbs.
Overall Length .................................. 5-3/4"
SPECIFICATIONS
• Operating Instructions • Warning Information
• Parts Breakdown
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Copyright © Professional Tool Products, 2010
All rights reserved.
MT2138
Super Duty
3/8" Composite
Impact Wrench
®

MT2138 2 09/02/10
MT2138 Super Duty 3/8" Dr Composite Impact Wrench
FAILURE TO OBSERVE THESE WARNINGS COULD RESULT IN INJURY
OPERATION
Soak rusted nuts in penetrating oil and break rust seal before removing with
impact wrench. If nut does not start to move in three to five seconds use a
larger size impact wrench. Do not use impact wrench beyond rated capacity
as this will drastically reduce tool life.
The reversing valve is used to change the rotation of the tool. When the valve
is to the right, the tool is in a forward or right hand rotation. When the valve is
pushed to the left, the rotation is reverse or left hand.
NOTE: Actual torque on a fastener is directly related to joint hardness, tool
speed, condition of socket and the time the tool is allowed to impact.
Use the simplest possible tool-to-socket hook up. Every connection absorbs
energy and reduces power.
ThIs INsTRucTION MANuAl cONTAINs
IMPORTANT sAfETy INfORMATION.
REAd ThIs INsTRucTION MANuAl cAREfully
ANd uNdERsTANd All INfORMATION BEfORE
OPERATINg ThIs TOOl.
• Always operate, inspect and maintain this tool in
accordance with American National Standards
Institute Safety Code of Portable Air Tools (ANSI
B186.1) and any other applicable safety codes
and regulations.
• For safety, top performance and maximum durability
 of parts, operate this tool at 90 psig 6.2 bar max
air pressure with 3/8" diameter air supply hose.
• Always wear impact-resistant eye and face
protection when operating or performing
maintenance on this tool.
• Always wear hearing protection when using this
tool. High sound levels can cause permanent hearing
loss. Use hearing protection as recommended by
your employer or OSHA regulation.
• Keepthetoolinefficientoperatingcondition.
• Operators and maintenance personnel must be
physically able to handle the bulk, weight and
power of this tool.
• Air powered tools can vibrate in use. Vibration,
repetitive motions or uncomfortable positions over
 extended periods of time may be harmful to your
hands and arms. Discontinue use of tool if discomfort,
tingling feeling or pain occurs. Seek medical advice
before resuming use.
• Air under pressure can cause severe injury. Never
direct air at yourself or others. Always turn off the
air supply, drain hose of air pressure and detach tool
from air supply before installing, removing or
adjusting any accessory on this tool, or before
performing any maintenance on this tool. Failure to
do so could result in injury. Whip hoses can cause
serious injury. Always check for damaged, frayed
or loose hoses and fittings, and replace immediately.
Do not use quick detach couplings at tool. See
instructions for correct set-up.
• Placethetoolontheworkbeforestartingthetool.
• Slipping, tripping and/or falling while operating air
tools can be a major cause of serious injury or
 death. Be aware of excess hose left on the walking
or work surface.
• Keep body working stance balanced and firm. Do
not overreach when operating the tool.
• Anticipate and be alert for sudden changes in motion
during start up and operation of any power tool.
• Do not carry tool by the hose. Protect the hose from
sharp objects and heat.
• Tool shaft may continue to rotate briefly after throttle is
released. Avoid direct contact with accessories during and
after use. Gloves will reduce the risk of cuts or burns
• Keep away from rotating end of tool. Do not wear
jewelry or loose clothing. Secure long hair. Scalping
can occur if hair is not kept away from tool and
accessories. Choking can occur if neckwear is not
kept away from tool and accessories.
• Impact wrenches are not torque control devices
Fasteners with specific torque requirements must be
checked with suitable torque measuring devices
after installation with an impact wrench.
• Use only impact wrench sockets and accessories on
this tool.
• Do not lubricate tools with flammable or volatile
liquids such as kerosene, diesel or jet fuel.
• Donotforcetoolbeyonditsratedcapacity.
• Donotremoveanylabels.Replacedamagedlabels.

MT2138 3 09/02/10
MT2138 Super Duty 3/8" Dr Composite Impact Wrench
WARRANTy
Matco warrants its MT2138 for a period of 2 years to the consumer. We will
repair any MT2138 covered under this warranty which proves to be defective
in material or workmanship during the warranty period. In order to have your
tool repaired, return the tool to any of the Matco Authorized Warranty Centers
listed to the right, freight prepaid. Please include a copy of your proof of
purchase and a brief description of the problem. The tool will be inspected and
if any part or parts are found to be defective in material or workmanship, the
tool will be repaired free of charge and returned to you freight prepaid.
This warranty gives you specific rights. You may also have other rights which
vary from state to state.
The foregoing obligation is Matco’s sole liability under this or any implied
warranty and under no circumstances shall Matco be liable for any incidental
or consequential damages.
Note: Some states do not allow the exclusion or limitation of
incidentalorconsequentialdamagessotheabovelimitationorexclusionmay
not apply to you.
MATcO AIR cOMMANd
ToolRepairSV
1330 Commerce Dr.
Stow, OH 44224
[phone]
dIscOuNT TOOl REPAIR
3433 Losee Rd. #1
NorthLasVegas,NV89030
[phone]
PNEuTOOl PARTs & sERVIcEs cO., lTd
33 Haas Road
Toronto, Ontario
M9W 3A1 Canada
[phone]
[phone] (Toll-Free in Canada)
dIVERsIfIEd POWER INc,
90 Buttermill Avenue,
Vaughan,Ontario
L4K3X7Canada
Tel: [phone]
Toll Free: 800-821-7975
AIR suPPly
Tools of this class operate on a wide range of air pressures. It is
recommended that air pressure of these tools measures 90 PSI
at the tool while running free. Higher pressure and unclean air will
shorten tool life because of faster wear and may create a
hazardous condition.
Water in the air line will cause damage to the tool. Drain the
air tank daily. Clean the air inlet filter screen on at least a weekly
schedule. The recommended hook-up procedure can be viewed
in Figure 1.
The air inlet (Figure 2), used for connecting air supply, has standard 1/4" NPT
American Thread.
Line pressure should be increased to compensate for unusually
long air hoses (over 25 feet). Minimum hose diameter should be 3/8" I.D. and
fittings should have the same inside dimensions.
TROuBlEshOOTINg
Other factors outside the tool may cause loss of power or erratic
action. Reduced compressor output, excessive drain on the air line,
moisture or restrictions in air pipes or the use of hose connections
of improper size or poor conditions may reduce air supply. If
outside conditions are in order, and the tool still performs erratically, disconnect
tool from hose and take tool to your nearest Matco authorized service center.
luBRIcATION & MAINTENANcE
Lubricate the tool daily with a good grade of air tool oil. If no
air line oiler is used, run a 1/2 ounce of oil through the tool. The oil can
be squirted into the tool air inlet, Figure 2, or into the hose at the nearest
connection to the air supply, then run the tool. A rust inhibitive oil is acceptable
for air tools.
Drain Daily
RegulatorOilerQuick CouplerLeader
Hose
Nipple
Do Not In stall
Quick Coupling
Here
Nipple
Filter
Air Supply
Whip Hose
fIg. 1
fEATuREs
• Compactandlightweightwithpowerful370ft.lbsoftorque.
• Efficient7vanemotorprovidesmorepowerin3/8"drivethaneverbefore.
• Convenientonehandoperationforward/reverseleverswitchessidesforbothrightand
left hand use.
• Exclusiveanti-vibrationcushionedgripprotectsenduserfromfatigueduringuse.
fIg. 2
AIR
INLET
TRIGGER

MT2138 4 09/02/10
MT2138 Super Duty 3/8" Dr Composite Impact Wrench
110
101
102
103
104
105
106
107
107
108
109 201
203
204
309
308
307
306
305
304
302
408
408
423
401
402
404 405 406
415
407
410
411 412
413
416
310
311 430 419
417
418
426
427
428
429
421
422
202
409
301
303
ITEM PARTS NO PARTS NAME QTY ITEM PARTS NO PARTS NAME QTY
101 RS2138101 HAMMER CASE 1 401 RS2125401 TRIGGER-A 1
102 RS1081103 HAMMER CASE BUSHING 1 402 RS2125402 SPRING PIN 1
103 RS1734201 SOCKET RETAINER 1 404 RS2138404 SPRING 1
104 RS2150104 O - RING 1 405 RS2138405 REGULATOR A 1
105 RS1081106 ANVIL 1 406 RS4135407 LEVER 1
106 RS1081109 HAMMER FRAME 1 407 RS2125407 REVERSE VALVE 1
107 RS2150107 HAMMER 2 408 RS1735313 BALL 2
108 RS1081107 HAMMER FRAME PIN 2 409 RS2138409 POSITIONING SPRING 1
109 RS2125109 PACKING 1 410 RS1734414 O - RING 1
110 RS1837220 HAMMER CASE GREASE FITTING 1 411 RS2138411 REGULATOR B 1
201 RS2138201 HOUSING 1 412 RS2125412 SPRING 1
202 RS2138202 HANDLE GRIP 1 413 RS1837309 SPRING PIN 1
203 RS2125203 HALF ROUND HD.HEX.BOLT 4 415 RS2125415 O - RING 1
204 RS2125204 HEX.SOC.HD.BOLT 1 416 RS4150417 TRIGGER TIP 1
301 RS227B25 BEARING 1 417 RS1735410 O - RING 2
302 RS2125302 FRONT BEARING PLATE 1 418 RS1735409 AIR INLET 1
303 RS2125303 SPRING PIN 1 419 RS4150420 LATCH PIN 1
304 RS2125304 ROTOR 1 421 RS1735408 EXHAUST DEFLECTOR 1
305 RS2138305 BLADE (Pk. of 7) 1 422 RS1735411 TAP BOLT 1
306 RS2125306 CYLINDER UNIT 1 423 RS2125423 TRIGGER B 1
307 RS30524 BEARING 1 426 RS1735403 SEAL 1
308 RS2125308 O - RING 1 427 RS1735404 BUSHING 1
309 RS2125309 GASKET 1 428 RS1735405 TIP VALVE 1
310 RS2125310 PACKING-CYLINDER 1 429 RS4150428 SPRING 1
311 RS2138311 PACKING 1 430 RS4150424 E - RING 1
(Not shown) - Tune-up Kit, RS2138TK, including: 103,104, 109, 305 (7), 308, 309, 310, 311, 410, 415, 417 (2), and 426.