JUKI AMS-210EN Series, Engineer'S Manual

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Procedures of assembling
1. Fix the intermediate presser variable shaft to the intermediate presser variable arm by means of the
two setscrews so that the length of the shaft section becomes 217.3mm.
(Both setscrews should be adjusted level to the intermediate presser variable shaft .)
2. Insert the washer , thrust bearing , thrust collar , and the drive bevel gear in the intermediate
presser variable shaft in this order, and mount this assembly on the frame.
3. Pressing the intermediate presser variable arm in the direction of the Arrow E, secure a proper thrust by
pressing the thrust collar in the direction of the Arrow D and tighten the two setscrews . (Tighten the
first screw first so that it is fixed level to the intermediate presser variable shaft . Then, tighten the second
screw. To be done in the same manner hereafter.)
(Caution) If there is rattle in the variable shaft of the intermediate presser in the forward and back-
ward directions, this can be a cause of intermediate presser step-out. Be careful when you try
to fix the thrust collar
.
4. Adjust the distance to 19.2mm between the thrust collar and the drive bevel gear . Tighten the first
screw of the setscrew .
(Tentatively tightened till the completion of intermediate presser sensor adjustments)
5. Fix the intermediate presser motor to the intermediate presser motor mounting plate and mount the
intermediate presser coupling on the motor shaft. Since then, press the intermediate presser motor
assembly in the direction of the Arrow F and tentatively fix it to the frame by means of the two setscrews .
Adjust the positioning of the intermediate presser motor assembly where the intermediate presser coupling
) can be turned without any resistance, and tighten the two setscrews .
6. Insert the sensor slit , intermediate presser lifting cam , thrust collar , and the wave washer in the
intermediate presser lifting shaft in this order, and pass this assembly through the frame. Mount the E
ring on the intermediate presser lifting shaft .
7. Pressing the intermediate presser lifting shaft in the direction of the Arrow C, press the thrust collar in
the direction of the Arrow G and tighten the two setscrews .
8. Fix the intermediate presser lifting cam by means of the two setscrews so that the clearance becomes
0.5mm between both end planes of the intermediate presser lifting cam and the intermediate presser
lifting link . (Fix the first screw flat.)
9. Turn the intermediate presser variable shaft and the intermediate presser lifting shaft so that the
trailing bevel gear and the drive bevel gear are positioned as shown in Fig. J. Since then, fix them by
means of the two setscrews while the trailing bevel gear is pressed in the direction of the Arrow G (in
order to reduce the backlash to zero). (Fix the first screw flat.)
10. Fix the sensor slit in the position 3mm apart from the E ring . (Refer to Fig. J for the direction of
rotation.) When the sensor slit is turned, confirm that the slit plate passes through the sensor gap without
contact.
11. According to adjustments of intermediate presser variable as described in 3-(8), make adjustments of inter-
mediate presser variable and fasten the setscrews of the drive bevel gear and the sensor slit .
12. Using the step screw , mount the intermediate presser variable link on the intermediate presser vari-
able arm .
13. Using the shaft , mount the intermediate presser variable plate and the washer . (Flat side facing
upwards)
14. Mount the step screws , and .
15. Using the step screw , mount the intermediate presser variable link on the intermediate presser vari-
able plate .
16. Mount the intermediate presser auxiliary spring .
17. Mount the intermediate presser spring and the guide shaft from above the frame. Then, mount the
presser adjusting screw .
(26.0mm from the upper plane of the arm to that of the presser adjusting screw )