Publicidad
Idiomas disponibles
Idiomas disponibles
Air Compressor
The air compressor should have sufficient capacity to
deliver 5.2 cfm (37 SCFM) at 90 psig (6.2 bar,
620 kPa) at each outlet while the tool is running. The
receiver tank should have sufficient capacity to provide
surge balance for each air tool.
Filter
The Snap-on AHR424 Filter, or equivalent, should be
used to assure clean air for the tool. Water, dirt and scale
act as abrasives which could damage the air tool. 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 air pressure of 90 psig (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.
Air Strainer
An air strainer is built into the removable air inlet bushing
located at the rear of the impact wrench. To clean, remove
the bushing and use an air hose to blow dirt and other
particles from the screen and bushing. Before reinstalling
the air inlet bushing, check the O-ring for damage. If it is
damaged, replace it with a new O-ring to prevent air
leakage. Torque reinstalled air inlet bushing to 50–55 lbs.
ft. (68–75 N•m).
ZMG725ACE Rev. B
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 on the back of the wrench 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
below four (4) lbs for a 3/8" square drive.
Service Instructions
✔
Refer to Figure 2 for parts listing. Use only
genuine
Snap-on
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
replacement
parts
for
(05/21)
Publicidad
