•
Socket size: Failure to use the correct socket size will cause a reduction in fastening torque.
•
Bolt size: Larger bolt diameters generally require higher fastening torque. Fastening torque will also
vary according to length, grade, and torque coefficient.
•
Bolt: Ensure that all threads are free of rust and other debris to allow proper fastening torque.
•
Material: The type of material and surface finish of the material will affect fastening torque.
•
Fastening Time: Longer fastening time results in increased fastening torque. Using a longer fastening
time than recommended could cause the fasteners to be overstressed, stripped or damaged.
2.To help prevent damaging the fasteners or workpieces, avoid excessive impacting. Be particularly
careful when impacting smaller fasteners because they require less impacting to reach optimum torque.
Practice with various fasteners, noting the length of time required to reach the desired torque. Check
the tightness with a hand-torque wrench. If the fasteners are too tight, reduce the impacting time. If they
are not tight enough, increase the impacting time.
3. The maximum torque is achieved after an impact duration of 5-8 seconds. After this duration, the
tightening torque is increased only minimally. However, the transmission housing heats up noticeably.
MAINTENANCE
Warning: Remove the plug from the socket before carrying out any adjustment, servicing
or maintenance.
1. Keep the power tool ventilation slots clean and free from obstructions. If available, blow compressed
air into the vents to clear any internal dust (safety goggles must be worn when undertaking this
process).
2. Never use water or chemical cleaners to clean your power tool. Wipe clean with a dry cloth.
3.
Inspect sockets prior to use to ensure that it contains no cracks.
4. Always store your power tool in a dry place.
5. If you see some sparks flashing in the ventilation slots, this is normal and will not damage your power
tool.
6. If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly
qualified persons in order to avoid a hazard.
TROUBLESHOOTING
1. If your power tool will not operate, check the power at the mains plug, or check the carbon brushes.
2. If the power tool doesn’t work properly, check the socket holes, replace new one if worn.
3. If a fault can’t be rectified, return the power tool to an authorized dealer for repair.
ENVIRONMENT PROTECTION
Waste electrical products should not be disposed of with household waste. Please recycle
where facilities exist. Check with your Local Authority or retailer for recycling advice.
9
1100W IMPACT WRENCH
ENG
