Air tools provide optimum performance with a clean air supply and proper lubrication.
If your air tool develops a lack of power or fails to start when you depress the trigger:
1.
Ensure that the mesh lter located in the end of the air line is clean and also that an adequate volume of
appropriate air pressure is delivered to the air tool motor.
2.
Check that the blade set screw (SPB33) is not protruding from the chuck, as this will cause the reciprocating chuck
to jam against the guide head (SPB6).
Ensure that the trigger/lever (SPB30) is depressing the air valve (SPB18).
3.
4.
Again, the chuck may jam if longer SPB32 screws are tted to the controller cap (SPB34K).
5.
Similar to a car engine, this precision tool must be regularly lubricated with the recommended oil.
While depressing the trigger/lever (SPB30) to maximum, bump or jar the air tool at the chuck end several times.
6.
Often this action will dislodge an obstruction and will re-start the tool.
FLUSHING OUT THE AIR TOOL MOTOR
Do not use thick or unspeci ed oil or allow compressed air to deliver water or other foreign bodies into the air
tool motor. The tool may stop if the lubrication becomes contaminated and sticky, or if a small particle of
debris temporarily jams the piston. If point 6 above does not re-start the tool, refer to the following:
Flush out the air tool motor by adding a small quantity of appropriate ushing agent via the oiling point.
IMPORTANT: With the air tool exhaust pointed in a direction away from the operator, depress the lever (SPB30)
and operate the tool until the ushing agent is discharged through the exhaust.
NOTE: To avoid the discharge being absorbed into the mu er foam (SPB38), remove mu er clip (SPB25),
then using masking/electrical tape, seal the end of the mu er sleeve (SPB24) to the air line (SPB28A/L).
FURTHER ADVICE
7.
Remove the two cap screws (SPB32) and remove the controller cap (SPB34K) from the air tool.
8.
When the air is disconnected, use your nger to apply pressure to the chuck (SPB7K) to check if the chuck is freely
reciprocating without any obstruction inside the guide head (SPB6).
9.
If necessary, remove the four SPB36 front screws from the SPB6 head. The piston assembly can now be removed
from air tool body. The piston assembly should now freely slide in and out of air tool body/cylinder.
Be aware that the rear spring (SPB11) and the washer (SPB43) are located behind the piston assembly.
Also check that the piston (SPB4) slides backward and forward on the piston rod (SPB3).
10.
11.
If burrs or scratches are found on the surface of the cylinder, piston or piston rod, these should be removed with a
light grade emery paper.
12.
The piston assembly and other components should be cleaned thoroughly, pre-oiled and re- tted to the air tool body.
When replacing the piston assembly into the air tool, it is important to correctly align the guide head (SPB6) with
the chuck (SPB7K). With SPB36 screws slightly loose, connect air line and while holding air tool vertical with the
chuck at the top, operate the air tool at the same time as the SPB36 screws are alternatively tightened.
Once again, while the air is disconnected, use your nger to apply pressure to the chuck (SPB7K) to check if the
13.
chuck is now freely reciprocating without any obstruction inside the guide head (SPB6).
14.
Replace the Controller Cap (SPB34K) and re-tighten the two cap screws (SPB32).
IF THE BLADE COMES LOOSE
It is important that the correct SPB33 Cone Point Set Screw is used in the chuck to lock the blade tight in the
chuck. Do not use the Flat ended Set Screw (SPB33F) for blade xing. The SPB33F set screw is only for retaining
the air hacksaw blade when using the air tool as an air hacksaw.
IF PROBLEMS STILL EXIST, SEND YOUR BTB AIR TOOL TO A PROFESSIONAL BTB REGISTERED SERVICE AGENT.
1
Remove Oil Hole Set Screw (SPB33)
2
Maintenance Hints & Tips for the WK10HD Air Tool
Oiling Procedure for the WK10HD Air Tool
Disconnect Air Hose
SPB39 O-Ring is
located under SPB33
Oil the Tool Daily (2 - 4 Drops)
3
Replace Oil Hole Set Screw (SPB33)
4
Ensure that SPB39
O-Ring is replaced
and seated correctly
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