– 16 –
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 193.8mm.
(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 4.4mm 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
.
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).
10. Press the sensor slit
in the direction of the Arrow C and turn the setscrew
so that its H comes in the
section toward the setscrew
of the intermediate presser lifting cam
. Then, fix H of the setscrew
tentatively.
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 step screw
, mount the intermediate presser variable plate
and the variable plate spacer
.
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
.
(27.0mm from the upper plane of the arm to that of the presser adjusting screw
)