Porter-Cable 3700L Instruction Manual page 13

ADJUSTING THE 0° AND 45° BEVEL POSITIVE STOPS
Disconnect the machine from the power source!
1. Adjust the saw so that both the bevel and miter pointers are set at 0°. Tighten the bevel lock handle (A) Fig. 25 and lock
the cuttinghead in the "down" position.
2. Place one end of a square (A) Fig. 25 on the table and the other end against the blade. The blade should be 90° to the
table.
3. To adjust, loosen the bevel lock handle. Loosen the locknut (B) Fig. 26 and turn the adjusting screw (C) with the provided
wrenches until the blade is 90° to the table. Tighten the locknut (B) and the bevel lock handle (H).
4. When the blade is 90° to the table, adjust the pointer to line up with the 0° mark on the bevel scale.
5. Loosen the bevel lock handle, and move the cuttinghead all the way to the left bevel position and tighten the bevel lock
handle.
6. Use a square (A) Fig. 27 to see if the blade is at 45° to the table.
7. To adjust, loosen the bevel lock handle. Loosen the locknut (E) Fig. 28 and turn the adjusting screw (F) with the provided
wrench, until the blade is 45° to the table. Tighten the locknut (E) and the bevel lock handle.
A
Fig. 27
The cuttinghead must return quickly to the full up position. Sluggish or incomplete return of the cuttinghead will
affect the lower guard operation, possibly resulting in personal injury.
ADJUSTING THE TENSION OF CUTTINGHEAD RETURN SPRING
The tension of the cuttinghead return spring was adjusted at the factory so that the cuttinghead returns to the "up" position after
a cut has been made. If it becomes necessary to adjust the spring tension:
1. Loosen the locknut (A) Fig. 29.
2. Turn the screw (B) clockwise to increase, or counter-clockwise to decrease the spring tension.
3. Tighten the locknut (A).
ADJUSTING THE SLIDING FIT BETWEEN THE CUTTINGHEAD ARM AND THE TRUNNION
After a long period of time, an adjustment of the sliding fit between the cuttinghead arm (B) Fig. 30, and the trunnion (C) may
be necessary. To adjust, tighten the nut (D). This adjustment should not be so tight that it restricts the sliding movement of the
cuttinghead arm (B) or so loose that it affects the accuracy of the saw cut.
A
Fig. 25
A
Fig. 25A
A
B
Fig. 29
13
C
B
E
C
Fig. 30
Fig. 26
F
Fig. 28
B
D