Understandingand testing the locking
mechanismfunction
The Bowflex _ SelectTech TM Dumbbell features a patent
pending locking mechanism designed to assure proper and
complete selection of tile weight plates as well as to ensure
weight plate retention during tile workout. It is important
that you fully understand the function of this mechanism
and periodically test it to ensure it is properly functioning.
Function
Tile locking mechanism provides two key functions:
1. The mechanism will only allow tile adjustment knobs
to be rotated when tile dumbbell handle is complete-
ly inserted and engaging tile dumbbell base.
2. The mechanism is designed to lock tile dumbbell
handle to the base if either adjustment knob is not
fully engaging tile selected weight plates.
Purpose
Tile locking mechanism serves two important purposes:
1. The mechanism will prevent deselecting (dropping)
weight plates from the dumbbell when it is NOT in
the dumbbell base.
2. The mechanism will prevent partial selection of
the weight plates in which the plates are not fully
supported and the locking pin is not fully engaged.
Given the importance of this locking mechanism, it is
critical that you understand how it operates and how to
periodically test it to make sure it is functioning correctly.
Testing proper locking mechanism function
.
_Nith the dumbbell handle set
in the dumbbell base, turn
both adjustment knobs to
the number 5. You will know
you have fully and correctly
selected the number when
you feel the adjustment knob
settle into a notch (known as
a detent). You will also hear
a slight, but audible, clicking
noise that corresponds with the detent locations for
each number.
You should be able to withdraw the handle from the
base leaving all the weight plates behind.
With the handle removed from the base, grab one
adjustment knob with your other hand and gently
attempt to turn the knob, the knob should not rotate.
A locking pin in the mechanism will have engaged
the rotational assembly when the unit was withdrawn
from the base. Perform this test with all adjustment
knobs.
Do not use a great deal of force in an attempt to turn
the locked adjustment knob. Excessive force may
damage the locking mechanism.
,
9.
10.
After confirming the proper function of the lock-
ing mechanism as described above, return and
fully insert the dumbbell handle back into the base
assembly.
"With the handle back in the base, turn the adjustment
knob on one side to a position that is in-between the
5 and 7.5 number. This represents an incomplete
weight selection where the adjustment knob has not
fully selected a weight and the knob is in-between the
selection detents (clicks).
"With the selection knob in
this improper position, gently
attempt to lift up on the handle
to remove it from the base. You
should find that the handle is
locked to the base and cannot
be removed with light pressure
as it can normally.
Return the improperly selected
adjustment knob to a full and
proper weight selection and assure that the dumbbell
handle can once again be removed.
Repeat this test for all adjustment knobs.
Assure the entire dumbbell handle assembly is
properly tightened. Do this by setting the adjust-
ment knobs to five pounds and removing the handle
assembly from the base. Grab both adjustment knobs
and very slightly push and pull the knobs toward and
away from the handle grip. The knobs should not
exhibit free play and all of the selection discs should
feel tightly connected.
You have now tested the function of the locking
mechanism. We suggest you repeat this test periodi-
cally (once a month) to confirm the proper function
of the locking mechanism.