Precor ELLIPTICAL FITNESS CROSSTRAINERS EFX 835 - Manual (Page 23)

Assembling the EFX
21
Important: When wrench-tightening the screws, make sure
the head of the fastener is parallel to the product surface. If it
is not, stop tightening to avoid cross-threading. To avoid
further damage, stop assembly work and contact Customer
Support.
3. Check alignments and thread the remaining four center
column support screws, four ⁵₁₆-inch washers, and four
split washers. Tighten with a ³₁₆-inch hex key so the
assemblies come together, but leave room for
adjustments.
Figure 9: Center column support attachment
To tighten the fasteners properly:
CAUTION: Upright support fasteners must be properly aligned
and wrench-tightened in the order described below. If improperly
assembled, the upright supports can rub against the ramp.
1. Fully tighten the two sets of fasteners on the back of the
center column support.
Figure 10: Tighten fasteners on back of the center column
support