Θ-Motor (Mnla Head) - JUKI FX-1 Maintenance Manual

FX-1/FX-1R Maintenance Manual
2-2-2. θ-Motor (MNLA Head)
After the motor has been replaced, it is absolutely necessary to re-input the MS parameters related
to the axis home. (For details of input items, see section 2-9.)
(1) Follow the steps (1) to (5) described in
section 2-1-1 to remove components
to .
(2) Detach the
mounting screws)
(3) Remove the θ-motor mounting screws (3
pcs.) and slide the θ-motor in the
direction indicated by an arrow to loosen
the belt.
(4) Loosen two setscrews of the pulley, pull
out the θ-motor pulley and detach the
θ-motor.
(5) Reassemble the components in the
reverse order of disassembly.
(6) Check the tension of the belt following
the procedure described on the next
page and
necessary.
<Procedure>
Put the jig (hook pin) in the tap of the
θ-motor and lock the mounting screw
with the jig pulled in the direction
indicated by an arrow with a force of
21.6 N (2.2 kgf) using a tension rod.
Using a tension gauge, check that the
belt tension is in a proper tension
range of 10.5 ±1N.
Tension gauge set values
Weight:
Width:
Span:
Apply Loctite 242 to the θ-motor
mounting screws (4 pcs.) and tighten
them with a tightening torque of 2.3 Nm.
When tightening the setscrew of the
θ-motor pulley, make sure to align the orientation of the flat part of the θ-motor shaft and
the setscrew of the pulley. Tighten the setscrew with a torque of 0.5 Nm.
Part name
LT1-MOTOR CABLE ASM
LT2-MOTOR CABLE ASM
LT3-MOTOR CABLE ASM
LT4-MOTOR CABLE ASM
Z-motor cover (Four
make adjustments
0.9 g/m
6 mm
64.5 mm
Table 2-2-2-1
Part No.
L815E6210A0
L815E8210A0
L816E0210A0
L816E2210A0
if
Pull
Part name
RT1-MOTOR CABLE ASM
RT2-MOTOR CABLE ASM
RT3-MOTOR CABLE ASM
RT4-MOTOR CABLE ASM
2-6
Figure 2-2-3
Timing belt θ
Figure 2-2-4
Part No.
L816E4210A0
L816E6210A0
L816E8210A0
L817E0210A0
Rev. 2.00