Maintenance And Inspection - Hitachi WR 22SE Instruction Manual And Safety Instructions

English
*1 Excessive load protection function
For excessive load conditions, the tool will shutdown to prevent damage.
Discontinue the heavy load task and unplug the power cord from the outlet. When the cord is
plugged back in, the tool will recover.
*2 Increased temperature protection function
Automatic shutdown is activated to prevent damage from high temperatures.
The tool's internal temperature will increase for tasks involving the use of large currents of
electricity, or when used in high temperature environments.
In such cases, let the tool cool down for 10 to 15-minutes before continuing use.
7. Using the hook hanger (WR25SE) (Fig. 7)
When using the hook hanger, make sure the rope or wire is
securely fastened to the hanger.
CAUTION:
Always make sure to use a rope or wire with suffi cient
strength to support the weight of the main unit and
withstand impact from dropping.

MAINTENANCE AND INSPECTION

WARNING:
Be sure to switch power OFF and disconnect the plug from the
receptacle during maintenance and inspection.
1. Inspecting the socket
A worn or deformed hex. or a square-holed socket will not give an adequate tightness to
the fi tting between the nut or anvil, consequently resulting in loss of tightening torque. Pay
attention to wear of socket holes periodically, and replace with a new one if needed.
2. Inspecting the screws
Regularly inspect all screws and ensure that they are properly tightened. Should any of the
screws be loosened, retighten them immediately.
WARNING:
Using this impact wrench with loosen screws is extremely dangerous.
3. Maintenance of the motor
The motor unit winding is the very "heart" of the power tool. Exercise due care to ensure the
winding does not become damaged and/or wet with oil or water.
12
Hook Hanger
Fig. 7