MT3884
4
Rev. 06/03/16
MT3884 1 HP 4-1/2" Angle Grinder
AIR SUPPLY
Tools operate on a wide range of air pressures. It is
recommended that air pressure measures 90 psig at the tool
with the trigger fully depressed and no load applied to the tool.
Higher pressure (over 90 psig; 6.2 bar) raises performance
beyond the rated capacity of the tool, which will shorten tool life
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 water from
air lines and compressor prior to running tool. Clean the air inlet
filter screen weekly. The recommended hookup procedure can
be viewed in the below figure.
The air inlet used for connecting air supply has standard 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
dimensions and be tightly secured.
Ensure an accessible emergency shut off valve has been installed
in the air supply line and make others aware of its location.
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. 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, disconnect tool from hose and take tool to your nearest
authorized service center.
LUBRICATION & MAINTENANCE
Lubricate the air motor daily with high quality air tool oil. If no air
line oiler is used, run 1/2 oz. of oil through the tool. The oil can
be squirted into the tool air inlet 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.
After an air tool has been lubricated, oil will discharge through
the exhaust port during the first few seconds of operation. The
exhaust port must be covered with a towel before applying air
pressure to prevent serious injury.
WARRANTY
Matco warrants this air tool for a period of 2 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 any of the Matco Authorized Warranty Centers listed,
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.
NATIONAL MACHINE GROUP EAST
AIR TOOL REPAIR CENTER
1330 Commerce Dr.
Stow, OH 44224
(330) 688-6494
NATIONAL MACHINE GROUP WEST
AIR TOOL REPAIR CENTER
2223 S. Wilson Street
Tempe, AZ 85282
(480) 966-1097
HT PNEUMATIC REBUILDERS
22 Goodmark Place Unit #8
Toronto, ON M9w 6R2
(416) 213-0172
MT3884 1 HP 4-1/2" Right Angle Grinder
FIG. 1
Drain Daily
Regulator
Oiler
Quick Coupler
Leader
Hose
Nipple
Do Not Install
Quick Coupling
Here
Nipple
Filter
Air Supply
Whip Hose
WARNING
WARNING
AIR INLET
FIG. 2
TRIGGER
