Untitled Document

Allows solid engagement of the machine when in gear.
Eliminates the problem of machines slipping out of gear which can result in spindle freeze ups due to the lack of lube oil while the machine fails to index.
Creates better control of the machine during setup adjustments

FOLLOW THESE INSTRUCTIONS FOR EASY INSTALLATION OF WEDGE
CHUCK ASSEMBLY FOR THE HIGH SPEED CLUTCH P/N NP-300
OR THE HAND CLUTCH P/N NP-200

NOTE: TO INSTALL ONLY THE HIGH SPEED CLUTCH P/N NP-200 FOLLOW
THOSE DIRECTIONS PRECEDED BY THE *

NOTE: If water soluble coolant is used on the machine,
it may be necessary to REMOVE THE CP-28 (permanent
LUBRICANT) FROM THE NP-200 AND NP-300.
Some water soluble coolants react chemically with the
CP-28, causing a hardening of the lubricant and severe
damage to the NP-200 and NP-300 wedge chucking units.

NOWAK recommends that when using a water soluble
coolant, the CP-28 be REMOVED from the NP-200 and
NP-300 and REPLACED with 20 weight Lubricating oil.
Lubricate the units at Least once per shift or as need.

NOWAK PRODUCTS, INC. assumes no responsibility
for damage done to wedge chuck units if water soluble
coolants are used.

Remove:
*a. pickup actuating lever P/N 1263-119-10 and shaft
  P/N 1263-21
b. bracket P/N 1263-6-10 which holds the pickup
  actuating lever & shaft in place (2 bolts)
*c. turret cams
d. tool spindle cam lever arm assembly P/N 5080-81-1
  (4 bolts)
*e. fourth position outer support bracket P/N 5080-345
*f. tool spindle shaft carrier nut P/N 5080-26-3
*g. cam
*h. brake assembly
*i. fourth position cam shaft key P/N 5080-22-10K
  (two 1/4-24 screws P/N 834)
*j. fourth position cam shaft P/N 5080-22-10
k. threading clutch cam lever P/N 5080-226-6
*l. feed change gear and key
m. 5 screws which hold cam carrier bracket P/N 5080-43
n. bracket assembly from front of machine
o. starting shaft fork shoes P/N 5623 and pins P/N
  838-7 from the high speed clutch large lever
p. high speed clutch large lever
*q. remove adjusting nuts from the high speed & hand
  clutch shafts
*r. back end gear cover ( top & bottom ) ( 2 screws )
*s. nuts P/N 840-F from rear of high speed and hand
  clutch shafts
  IF YOU ARE NOT REPLACING HAND CLUTCH
  DO NOT REMOVE NUT FROM REAR OF HAND
  CLUTCH SHAFT.
*t. high speed P/N 5080-139-1 and/or hand clutch shaft
  P/N 5080-141
Examine:
a. end of high speed clutch shaft
   -check for twisting and excessive key slot wear
   -replace shaft if necessary
*b. hand clutch shaft
   -check fro excessive key slot wear and driven
    gear screw slippage
   -replace shaft if necessary
To reassemble high speed clutch shaft
a. replace replace fulcrum and fulcrum driving clutch sleeve
   P/N 5080-167 with NP-300
b. insert bronze driving clutch washer P/N 5080-105
c. Note: large end of the high speed clutch must push
   against the bronze driving clutch washer. The
  slots in the rear of the NP-300 are for the 3/16 " pins
  in the new style adjustment nuts. If using older
  style adjusting nut, disregard the slots.
d. replace high speed clutch large lever
e. insert bronze starting shaft fork shoes & pins
  or use NP-300-4 Hi Speed & Hand Clutch Lever and
  NP-300--5 Hi Speed & Hand clutch Lever Pin.

*4 IF YOU ARE REPLACING THE HAND CLUTCH
   P/N NP-200 COMPLETE THE FOLLOWING. OTHERWISE
   GOTO STEP 5.

*a. check the mating part to the pressure collar
   P/N NP-200-1 of the NP-200
*b. the face of the davenport driving clutch body
   P/N 5512-1 must be turned or ground square to the
    I.D. of the driving clutch body
   NOTE: FAILURE TO COMPLETE STEP 4B WILL
   RESULT IN SHORTENED SHAFT & WEDGE CHUCK
   LIFE.
*c. replace the driving clutch friction disc P/N 5611 if
   necessary
*d. reassemble hand clutch shaft

*5. Reassemble machine in reverse order as listed in
   Step 1.

re-time machine using timing cams.
Adjustment
*a. Hand Clutch
   - tighten the adjusting nut until normal pressure
     is felt at the hand lever
   - be sure the hand clutch NP-200 is completely
    closed or the machine may come out of gear
b. High Speed Clutch
   - jog the machine into high speed index
   - close NP-300 completely by adjusting the high
    speed clutch fork lever P/N 5080-77
   - jog the machine into work cycle
   - with machine stopped, manually check that high
    speed clutch outer housing P/N NP-300 turns
    freely
   - continue to adjust high speed chuck fork
    lever until outer housing turns freely
   - recheck high speed clutch closing gap
   - max gap should be .125" between outerhousing
     P/N NP-300-2 & pressure collar P/N NP-300-1
   - adjust high speed clutch fork lever up or down until
    free turning & acceptable closing gap are attained
c. Do not Overtighten the NP-300
   - wedges may not lock up during high speed
     index
   - SEVER DAMAGE WILL OCCUR TO THE UNIT
   - CHECK FOR PROPER TENSION AFTER EACH
    CHANGE IN ADJUSTMENT NUT
NOTE: It takes approximately 3-4 days of running to
break in a new high speed clutch. Several adjustments
may be necessary during this period.
For further technical assistance contact Nowak Products at:
860-666-9685
800-423-0970
E-mail:nowak@nowakproducts.com

Wedge Chuck Assembly for Hand Clutch

NP-200