Reece 32

CLAMP TABLE TRAVEL

at this time allowing free flow of oil for fast movement of the Clamp Table.

Clamp Table and Intermittent Feeding are hydrauli– cally powered and ·electrically operated as follows: CLAMP CLEARING-BACK (not sewing) When the Clamp Table is in its forward position, Clamp· Clearing Switch operates the Clamp Table Control Circuit to energize Clamp Table Solenoid. This establishes a holding circuit to continue ener– gizing the solenoid, and lowers the Clamp Table Plunger, directing oil to the front of the Clamp Table Control Cylinder. This action moves the Clamp Table back and maintains this position until the holding circuit is broken. (Described in the · following paragraphs.) Sew/Center Dense Valve Block and End Dense Valve Block are fully open

CLAMP CLEARING-FORWARD (not sewing) When the Clamp Table is in its back position, moving Clamp Clearing Switch to II FORWARD" breaks the holding circuit. This deenergizes the clamp table solenoid shifting plunger of the Clamp Table Control Valve Block up so that oil from the pump is directed to the rear of Clamp Table Con– trol Cylinder, causing the Clamp Table to move to its forward position. Sewing/ Center Dense and End Dense Valve Blocks are still fully opened, al lowing for fast movement of Clamp Table.

CLAMP TABLE CONTROL CYLINDER .

INTERMITTENT VALVE

ROTOR

CLAMP CLEARING SWITCH

CONTROL CIRCUIT BOARD

CLAMP TABLE TRAVEL VALVE BLOCK

CIRCUIT SWITCHES

PEDAL

~~~ SOLENOID

RELAY

I I CLAMP TABLE CONTROL CIRCUIT -SE-WIN-G-,D-EN-SE-----1

VALVE BLOCK ~----~ SOLENOID

CIRCUIT SWITCHES

KNEE SWITCH

RELAY

SEWING/CENTER DENSE CIRCUIT-E-ND_D_EN;-SE----1

VALVE BLOCK SOLENOID

CIRCUIT SWITCHES

RELAY

,

..,

I ., END DENSE CIRCUIT I

PUMP

From the Library of Superior Sewing Machine & Supply LLC