Air requirement-normal load ................................................................. 55 cfm
Air requirement average ....................................................................... 65 cfm
Air requirement-maximum hp ............................................................... 75 cfm
Figure 68. Pneumatic circular saw.
158. Precautions
a. Never neglect the necessary lubrication procedures (par. 160b).
b. Be sure to blow out the air hose before connecting it to the air connection.
c. Operate the saw only at recommended air pressure. Less than 80 psi will cause loss of power; more than 100 psi
will cause undue wear of moving parts.
d. Do not force the blade through the work. Allow the speed of the blade to do the cutting.
e. Keep the saw blade well sharpened. 'When "touching up" the blades, do not change shape or bevel of blade
teeth.
f. Always make certain that the trigger is locked before changing blades. When replacing the blade, remember that
the teeth must point in the direction of rotation.
g. Always detach the air hose from the circular saw when stopping operations for any length of time.
159. Operation
a. Rest the front of the saw foot on the work and line up the blade with the cutting line.
152
