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Idiomas disponibles
Piping System
The piping system should be large enough to avoid an
excessive pressure drop under maximum flow
conditions. All pipe fittings and hose outlets should be
1/2" and should be arranged so there are no low spots
that collect water which cannot be drained daily.
Do not use an air hose less than 3/8" inside diameter or
one that is too long because pressure drop under
maximum flow conditions could reduce performance.
Accessories are available for air tight connections. The
Snap-on AHC22 Quick Coupler and the AHC22M and
AHC22F adaptors are recommended for use with this air
tool. Also recommended for use are the AHCC98
Universal Coupler and the AHCCP97 High Flow Fitting.
Filter
The Snap-on AHR424 Filter, or equivalent, should be
used to assure clean air for the air impact wrench. Water,
dirt and scale act as abrasives which could damage the
air impact wrench. A filter unit should be installed
between the compressor and the air regulator and air
lubricator.
Air Regulator
Regulated air pressure is necessary for proper
performance of the air impact wrench. The Snap-on
AHR426 Regulator, or equivalent will adjust and maintain
the
recommended
(6.2 bar, 620 kPa). Pressure less than this reduces
efficiency, while pressure greater than this increases
blows and speed beyond the rated capacity—creating
potential hazards and possible damage to the air impact
wrench. Check the air pressure at the regulator while
using the impact wrench in a normal manner.
Air Line Lubricator
✓
Do not use a heavy grade of oil because stalling
and low performance will result.
The preferred method of lubricating the air impact
wrench motor is to use an air line lubricator such as the
Snap-on AHR428 Lubricator. It should be filled with
Snap-on IM6 Air Motor Oil or a good grade of SAE 10W
oil.
If an air line lubricator is not used, lubricate the air motor
by injecting approximately 1/8 oz (3.75 ml) of IM6 Air
Motor Oil into the air inlet of the wrench each day before
using it. IM6 Oil is specially formulated for air tools and
no flushing solvent is needed.
Oil Reservoir
The impact mechanism chamber is sealed at the factory
and should not require any additional oil.
ZMG325CE Rev. J
air
pressure
of
90
Impact Power/Frequency
Regulator
Torque output is governed by the air line pressure, the
regulator setting and the time spent working. An air line
pressure of 90 psig (6.2 bar, 620 kPa) is recommended.
This regulator is located in the middle of the wrench
above the trigger and regulates the power and frequency
of the impact blows in forward direction only. It has three
settings (low, medium, high) as indicated on back of tool.
Forward / Reverse Lever
The forward/reverse lever is located in the middle of the
wrench above the trigger. For forward (clockwise) anvil
rotation, push lever towards front of tool. For reverse
(counterclockwise) rotation, push lever towards back of
tool.
Socket Retainer
Disconnect the air hose before changing sockets. This air
impact wrench features a steel locking ring for retaining
all types of impact sockets. The ring holds them in place
by friction. It will be necessary to replace the ring
periodically when the force to remove the socket falls
psig
below four (4) lbs for a 3/8" square drive.
Service Instructions
✓
Refer to Figure 2 for parts listing. Use only
genuine
maintenance and repair. Servicing and repairs
should be performed only by trained personnel.
Repair parts and service manual available
through your authorized Snap-on representative.
5
Snap-on
replacement
parts
for
(05/21)
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