Bell System Practices Plant Series Adjustments page 28

573-115-700
SECTION
2. 22
Main Shaft and Trip Shaft Mechanisms (Cont.)
CLUTCH TRIP ARM
DRUM
MOUNTING
CLUTCH DISK STOP LUG
ADJU STIN G DISK
TO ADJUST
LOOSEN THE TWO CLAMP SCREWS ON THE CLUTCH DISK. ENGAGE A WRENCH OR SCREWDRIVER
ON THE LUG OF THE ADJUSTING DISK AND ROTATE THE DISK.
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TYPE BOX CLUTCH TRIP LEVER
UIREMENT
CLUTCH TRIP SHAFT CAM FOLLOWER ROLLER
(SEE PAR . 18)
2.
CAM (LOCATED ON CODE BAR CLUTCH).
CLEARANCE BETWEEN INNER FACE OF
TYPE BOX CLUTCH TRIP LEVER AND THE
CLUTCH DISK STOP LUG.
MIN. 0.025
0.045
MAX.
TO ADJUST
LOOSEN CLAMP SCREW AND POSITION STOP.
REQUIREMENT
WHEN POSITIONING THE TRIP ARM
DETERMINE THAT THE LATCH LEVER
HAS SOME SIDE PLAY
MAX. 0.008
TO ADJUST
UTCH SHOE LEVER
REQUIREMENT
GAP BETWEEN CLUTCH SHOE LEVER AND ITS STOP
LUG SHOULD BE 0.055 INCH TO
WHEN CLUTCH IS ENGAGED THAN WHEN THE CLUTCH
IS DISENGAGED.
TO CHECK
DISENGAGE THE CLUTCH AND MEASURE THE GAP.
TRIP THE CLUTCH AND ROTATE IT UNTIL THE CLUTCH
SHOE LEVER IS TOWARD THE BOTTOM OF THE UNIT.
AGAIN MEASURE THE GAP WITH THE CLUTCH THUS
ENGAGED.
NOTE
ON MULTIPLE STOP CLUTCHES CHECK THE CLEARANCE
AT THE STOP LUG THAT IS ADJACENT TO THE FORM IN
THE CLUTCH ADJUSTING DISK.
ON LOWEST SURFACE OF
INCH
POSITION THE CLUTCH TRIP
ARM ON ITS SHAFT WITH THE
CLAMP SCREW LOOSENED.
0.085 INCH GREATER
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