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EFX 400 Series Assembly Guide 8
Attaching the Moving Arm Assembly (EFX 447
and 425 Models Only)
This assembly procedure applies to EFX 447 and 425 models only.
CAUTION: Avoid cross-threading. Make sure the movable arm is well-aligned with the
pivot tube before wrench tightening. Any damage caused during installation is not
covered by the Precor Limited Warranty.
Refer to the following figure to position the movable arms for assembly.
Figure 10: Moving arm attachment
To attach the movable arms:
1. Position the left movable arm carefully onto the pivot tube. Support the weight
of the movable arm with one hand, while you turn the joint screw at least four
times with your other hand.
Important: If the joint screw is resistant, do not force it. Reposition the movable
arm and try again. Forcing the joint screw may cause crossthreading.
Figure 11: Tighten the joint screw by hand
2. When the joint screw is properly threaded, fully tighten it using a ยน๎โ-inch
open-end wrench.
3. Guide the movable arm to its balance point and let it rest there.
4. Repeat this procedure to attach the right movable arm.
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