2OM-1104-001.pdf - 第276页

10. Adjustment of P .C.B. Horizontal Clamping When a thin P .C.B. is used and the horizontal clamping force is strong, it may be warped. T o avoid this, adjust the force with the pressure re- ducing valve which is locate…

(4) Detach the filter and remove dust accumulated on the filter with an

air gun and a vacuum cleaner.

Fig. 5A37-9

(5) Set the filter such that the center hole of the filter can fit into the

flange located at the rear side of the filter cover.

Fig. 5A37-10

(6) While holding the lid, engage the clip securely such that the flange

(located at the center of the lid) can fit into the center hole of the

filter.

Fig. 5A37-11

9.2 Replacement Procedure of Blower Filter

0106-001 Chapter 3 1 31-6 AFU01EINP

Flange Section

10. Adjustment of P.C.B. Horizontal Clamping

When a thin P.C.B. is used and the horizontal clamping force is strong,

it may be warped. To avoid this, adjust the force with the pressure re-

ducing valve which is located at the front left (operator side) of the L

conveyor.

Fig. 5A38

• Refer to the following table for the relation between the P.C.B. thick-

ness and air pressure.

The values indicate the pressures to be applied, assuming that a

P.C.B. (Dimensions: "150

100 1.5 (t)") is used without a P.C.B.

stopper.

P.C.B. Thickness

Air Pressure 0.5 1.0 1.5 2.0 (mm)

MPa 0.12 0.2 0.3 0.3

(kgf/cm

) (1.2) (2.0) (3.0) (3.0)

0009-002 Chapter 3 1 32 AFU01EINP

10. Adjustment of P.C.B. Horizontal Clamping

Pressure Reducing Valve

11. Vacuum Source

• The blower-type vacuum source is provided and used for the vacuum-

type P.C.B. clamping unit and the automatic cleaning (suction type).

(1) Adjustment of Vacuum Suction Force

• The vacuum force can be adjusted with the vacuum control valve.

When the valve is turned clockwise, the suction force weakens.

Turning it counterclockwise strengthens the suction force.

Fig. 5A39

• The vacuum control valve is factory-adjusted to the condition

that it is opened (turned 9 times counterclockwise) from the "Max."

position (fully-closed position).

11. Vacuum Source

0106-003 Chapter 3 1 33 AFU01EINP

Blower Unit

Muffler

Vacuum Control Valve