Idle Pulley Assembly - Brother PR600II Service Manual

Main unit
2

Idle pulley assembly

1. Apply FBK OIL RO100 to the shaft hole 1 on the idle pulley.
2. Attach the retaining ring E7 to the idle pulley shaft 2.
3. Attach the thrust washer 3, idle pulley 4, thrust washer 3, and set collar
5 to the idle pulley shaft.
4. Draw the set collar toward the idle pulley, and secure the set collar with the
2 screws 1.
Start movie clip (CD-ROM version only)
Apply FBK OIL RO100 to the shaft hole on the idle
pulley.
1
3
Idle pulley assembly attachment
1. Hang the T-belt (S5M-525) 2 over the idle pulley assembly 1, and attach
the idle pulley assembly's 2 lower shaft metals so that they are aligned with
the lower shaft metal collars of the arm bed.
2. Attach the 2 bushing pressers and temporarily tighten them with 4 screws
1.
3. Insert a flat screwdriver from the rear, rotate the idle pulley shaft, and
adjust the backlash between the lower shaft gear and the idle pulley.
4. Firmly tighten the 4 screws 1 securing the 2 bushing pressers.
*Key point
• Check that there is no backlash in the lower shaft.
5. Apply MOLYKOTE EM30L to the lower shaft gear.
Start movie clip (CD-ROM version only)
Backlash between lower shaft gear and idle pulley:
Apply MOLYKOTE EM30L to the lower shaft gear.
1
3 - 32
Lower shaft unit
Set Screw, Socket (CP)
M3X4
Taptite, Bind S
M4X10
1 drops
Torque
0.78 – 1.18 N-m
0.03 mm
Gear
circumference
Torque
1.47 – 1.96 N-m
1
3
2
4
Retaining ring E7
1
1 2
5
1