Use And Care Manual

Page 12
Hold the tool firmly, and place the socket
over the bolt or nut. Turn the tool on, and
fasten the bolt or nut to the proper torque.
The torque that is required to loosen a
fastener averages 75% to 80% of the
tightening torque, depending on the
condition of the contacting surfaces.
However, if rust or corrosion causes seizing,
more torque may be required.
After fastening, always check the torque
with a torque wrench. The fastening torque
is affected by a wide variety of factors,
including the following:
• Socket
Failure to use the correct size socket will
cause a reduction in the fastening torque.
A worn socket (wear on the hex end or
square end) will cause a reduction in the
fastening torque.
• Bolt
Although the torque coefficient and the
class of bolt may be the same, the proper
fastening torque will differ according to the
diameter of the bolt.
OPERATION
MAINTENANCE
Even if the diameters of bolts are the same,
the proper fastening torque will differ
according to the torque coefficient, the
class of bolt and the bolt length.
• Accessories
The use of a universal joint or an extension
bar (both available separately) will reduce
the fastening force of the Impact Wrench
somewhat. Compensate by fastening for a
longer period of time.
• Technique
The manner of holding the tool or the
material to be fastened will affect the torque.
WARNING:
Always wear safety
goggles or safety glasses with side
shields during power tool operations, or
when blowing dust. If operation is dusty,
also wear a dust mask.
WARNING:
Do not at any time let
brake uids, gasoline, petroleum-based
products, penetrating oils, etc. come in
contact with plastic parts. Chemicals can
damage, weaken or destroy plastic, which
may result in serious personal injury.
The tool may be cleaned most effectively
with compressed dry air. Always wear
safety goggles when cleaning tools with
compressed air.
Avoid using solvents when cleaning plastic
parts. Most plastics are susceptible to
damage from various types of commercial
solvents and may be damaged by their use.
Use clean clothes to remove dirt, dust, oil,
grease, etc.
BEFORE EACH USE
1. Inspect the Impact Wrench, the on/off
switch and the accessories for damage.
2. Check for damaged, missing, or worn
parts.
3. Check for loose screws, misalignment
or binding of moving parts, or any other
condition that may affect the operation.
4. If abnormal vibration or noise occurs,
turn the tool off immediately and have the
problem corrected before further use.
5. Detach the battery from the Impact
Wrench before cleaning or performing any
maintenance. Using compressed air may
be the most effective cleaning method.
Always wear safety goggles when
cleaning tools using compressed air.
LUBRICATION
All of the bearings in this tool are lubricated
with a sufficient amount of high grade
lubricant for the life of the unit under normal
conditions. Therefore, no further lubrication
is required.