Disassembly and Repair
777
Shifter fork replacement
-moving the AGuator
Figure 7.43
Assembly:
1 Screws
2 Washers
3 Actuator Assembly
Figure 7.44 - Shifter Fork Installed.
I
Figure 7.45 -
Installing the Actuator
Assembly:
1 Screws
2 Washers
3 Actuator Assembly
1. Move the piston up or down until the shifter fork is in the center of the
pump mount.
2. Use an 8 mm wrench to remove the screws and washers holding the
actuator assembly to the air cylinder.
3. Pull the assembly straight out and set aside.
4. Remove the clamping screw from the shifter fork (item 11, Figure
8.8). Slide the fork toward the air motor and off the piston shaft.
5. Slide the new shifter fork onto the piston shaft until it sits on the
shoulder. The side stamped up must face the air motor end of the
pump. Insert the screw and apply torque of 8-10 Nom (71-89 in.-lb).
6. Move the piston up or down until the shifter fork is in the center of the
pump mount.
7. Inspect the o-rings on the face of the air cylinder for damage.
Replace if necessary.
8. Carefully align the actuator assembly with the shifter fork and the
pins on the air cylinder.
9. Secure the assembly with the screws and washers removed during
disassembly. Apply torque of 3-4 Nom (28-36 in.-lb).
BNordson Corporation 1994
All Rights Ftesenmd
P/N 106 7018
41.23OOSP - Issued 1 Q95
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