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Understanding and testing the locking
mechanism function
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assembly when the unit was withdrawn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.
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