MT1842
3
Rev. 06/18/08
MT1842 3/8" Wobble Drive Air Ratchet
AIr SuPPly
Tools of this class operate on a wide
range of air pres sures. It is recommended
that air pres sure of these tools mea sures
90 PSI at the tool while running free.
Higher pres sure (over 90 psig; 6.2 bar)
raises performance beyond the rated
capacity of the tool which will short en
tool life be cause of faster wear and could
cause injury.
Always use clean, dry air. Dust, corrosive
fumes and/or 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
rec om mend ed hookup pro ce dure can
be viewed in the above figure.
The air inlet used for con nect ing air
supply, has stan dard 1/4" NPT. 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 di men sions and be
tightly secured.
OPErATION
This ratchet wrench is rated at 3/8" USS
bolt size. Rating must be down graded
for spring U bolts, tie bolts, long cap
screws, double depth nuts, badly rusted
conditions and spring fas ten ers as they
absorb much of the impact power. When
possible, clamp or wedge the bolt to
prevent springback.
Soak rusted nuts in pen e trat ing oil and
break rust seal before removing with
im pact wrench. If nut does not start to
move in three to five sec onds use a larger
size impact wrench. Do not use impact
wrench be yond rated ca pac i ty as this will
dras ti cal ly reduce tool life.
The forward/reversing button is used to
change the ro ta tion of the tool. When the
button is set to the right, the tool will turn
in a right hand ro ta tion. When the button
is set to the left, the tool will turn in a left
hand ro ta tion.
NOTE:
Actual torque on a fastener is
di rect ly related to joint hard ness, 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.
TrOuBlEShOOTINg
Other factors outside the tool may cause
loss of power or erratic action. Reduced
compressor output, ex ces sive 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. Grit or gum deposits
in the tool may cut power and may be
corrected by cleaning the air strainer
and flushing out the tool with gum solvent
oil or an equal mixture of SAE #10
and kerosene. If outside conditions are
in order and tool continues to perform
erratically, disconnect tool from hose
and take tool to your nearest au tho rized
service center.
luBrICATION
Lubricate the air motor daily with quality
air tool oil. If no air line oiler is used, run
a teaspoon of oil through the tool. The
oil can be squirted into the tool air inlet
or into the hose at the nearest con nec-
tion to the air supply, then run the tool.
The amount of oil to be used is 1 ounce.
Overfilling will cause a re duc tion in the
power of the tool. Grease fitting on yoke
occasionally to ensure proper lubrication
of the ratchet mechanism.
Nipple
WArrANTy
Matco warrants its air tools for a period of 1 year to the consumer.
We will repair any MT Series air tool 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 either of the Matco Authorized Warranty Centers listed below,
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
(800) 433-7098
DISCOUNT TOOL REPAIR
3433 Losee Rd. #1
North Las Vegas, NV 89030
(702) 657-6570
