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SelectTech® BD552i Dumbbells
Owner’s Manual
and Workout Guide
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This product is compliant with the
applicable CE requirements.
Introduction
Congratulations on the your purchase of the Bowflex® SelectTech® Dumbbell set. This innovative dumbbell is a
versatile training tool that will help you reach your fitness goal. This product has been carefully engineered and
manufactured to provide a wide array of weight options starting at 2.27 kg (5 lbs) and going all the way up to 23.9kg
(52.5 lbs). In order to utilize this product to its fullest extent, it is critical that you read and fully understand this
owner’s manual prior to using the SelectTech
To validate warranty support, keep the original proof of purchase and record the following information:
Serial Number ___________________________ Serial Number __________________________
Date of Purchase ____________________
To register your product warranty, contact your local distributor.
To find your local distributor, go to: www.bowflexinternational.com
If you have questions or problems with your product, please contact your local Bowflex
Table of Contents
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dumbbell.
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distributor.
Important Safety Instructions ..................................................................................................................................... 3
Safety Warning Labels and Serial Number................................................................................................... 3
Product Specifications ................................................................................................................................................. 4
Features .......................................................................................................................................................................... 4
Operation ........................................................................................................................................................................ 5
Getting to Know Your Bowflex
Understanding the Locking Mechanism Function ....................................................................................... 6
Testing Proper Locking Mechanism Function .............................................................................................. 7
Maintenance .................................................................................................................................................................. 8
Dumbbell Stand ............................................................................................................................................................. 8
Troubleshooting Guide ................................................................................................................................................. 9
Locking Mechanism Test ................................................................................................................................. 10
Exercises ........................................................................................................................................................................ 11
Leg Exercises ..................................................................................................................................................... 11
Chest Exercises ................................................................................................................................................. 13
Arm Exercises .................................................................................................................................................... 15
Back Exercises .................................................................................................................................................. 18
Abdominal Exercises ........................................................................................................................................ 19
Shoulder Exercises ........................................................................................................................................... 20
Muscle Chart ................................................................................................................................................................. 22
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SelectTech® Dumbbells ........................................................................... 5
Nautilus, Inc., (800) NAUTILUS / (800) 628-8458, www.NautilusInc.com - Customer Service: North America (800) 605-3369, csnls@nautilus.com |
outside U.S. +01-360-859-5180, technics-APLA@nautilus.com |
Printed in China | © 2008 Nautilus, Inc.
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Important Safety Instructions
This icon means a potentially hazardous situation which, if not avoided, could result in death or serious injury.
Before using this equipment, obey the following warnings:
Read and understand the complete Owner's Manual. Keep Owner’s Manual for future reference.
Read and understand all Warnings on this machine. If at any time the Warning stickers become loose,
unreadable or dislodged, contact your local distributor for replacement stickers.
• Children must not be let on or near to this machine. Moving parts and other features of the machine can be
dangerous to children.
• Not intended for use by anyone under 14 years of age.
• Consult a physician before starting an exercise program. Stop exercising if you feel pain or tightness in your
chest, become short of breath, or feel faint. Contact your doctor before using the machine again.
• This machine is for home use only.
• Periodically inspect and test the locking mechanism for correct function. Follow the test procedures included in
this manual.
• Do not operate this machine outdoors or in moist or wet locations.
• Before you start your workout, make sure that your surroundings are free from possible interference and third
parties. Your workout free space should be 0.6 m (24“) more than the maximum reach of the exercise in all
directions.
• Do not over exert yourself during exercise. Operate the machine in the manner described in this manual.
• Do not try to force the Adjustment Knob to turn when the Dumbbell has been removed from the Dumbbell base.
• Do not let the Dumbbells fall freely to the ground. Damage to the product and possible personal injury can occur.
• Do not let the Dumbbells forcefully hit together during operation. Damage to the product and possible personal
injury can occur.
• Do not lean on the Dumbbell handles or use them to support your body weight, such as using them as a base to
perform a push up. Damage to the product and possible personal injury can occur.
• Do not try to disassemble your Dumbbell handles, or base assembly. The product is not designed to be serviced
by the customer. Contact your local distributor for repair information.
• The Dumbbells are very heavy. If you are not using the optional Dumbbell Stand, put the Dumbbell assembly
directly on the floor for best support.
Safety Warning Labels and Serial Number
Record serial number in the Serial Number field at the beginning of this manual.
Note: Each dumbbell base has a unique serial number.
Do not drop
Serial number
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Product Specifications and Features
Dimensions 43cm x 21.2cm x 22.8cm (16.9” L x 8.3” W x 9” H)
Dumbbell Assembly Weight 55.6 lbs (25.2 kg)
Features
A. Handle grip
B. Adjustment knob
C. Weight plates
D. Weight locking tab
E. Base
F. Lifting handle
43.0cm
16.9”
21.2cm
8.3”
22.8cm
9.0”
A
B
D
C
D
F
E
F
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Operation
Getting to know your Bowflex® SelectTech® Dumbbells
The Bowflex® SelectTech® dumbbells are shipped fully assembled, one dumbbell to a box. After carefully removing the dumbbell
from its box, there are some initial steps that should be taken to familiarize you with the function of the product, and to make sure
that all features of the dumbbell operate correctly.
Do not drop the dumbbell. Dropping the dumbbell will damage the weight plates and/or the locking mechanism, and can
cause the weight plates to disengage (drop) from the handle without warning. This can cause serious injury, and will void
the warranty.
1. After you remove the dumbbell from its protective packaging, inspect the products and packaging material for damage.
2. Push down slightly on the handle assembly to make sure it is fully seated in the base. Rotate each adjustment knob several
full rotations to make sure it turns freely in both directions. Make sure there is a click at each weight increment of the
adjustment knob. This click will help you align the knob correctly to make a weight selection.
3. The weight increments range from 2 kg to 24 kg (5 to 52.5 lbs) on both adjustment knobs.
To properly select a given weight (9 kg [20 lbs] for example), rotate both adjustment
knobs until that number (9) is aligned with the arrow located on the outward edge of the
Bowflex
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nameplate (Fig.1).
4. After you make sure that the adjustment knob turns correctly, turn each adjustment knob so
that the number 2 is aligned with the arrow in the Bowflex
5. With both adjustment knobs set to 2, pull the handle straight up from the dumbbell. This
will remove only the handle from the base, and let all of the weight plates stay in the
base (Fig. 2). The handle without plates gives the initial weight of 2 kg (5 lbs).
6. You may increase the selected weight by rotating each adjustment knob clockwise.
NOTICE: When you remove the dumbbell from the base or return it to the base, use a
vertical motion, perpendicular to the base. Do not tilt the dumbbell or move it
laterally (parallel to the base) until it is fully clear of the unselected weight plates.
Note: The dumbbell handle and weight plates are symmetrical. The handle is inserted with
either end facing the user, provided that you have selected the same weight number
on both ends of the dumbbell.
Do not lean on the dumbbell handles or use them to support your body weight , such as using
them as a base to perform a push up. Doing so will damage the weight plates and/or the
locking mechanisms, and can cause the weight plates to disengage (drop) from the handle
without warning. This can cause serious injury, and will void the warranty.
Inspect the dumbbells prior to each use. Do not use a dumbbell with worn or damaged parts. Contact your local distributor for
repair information.
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nameplate.
Figure 1
Figure 2
There are 15 weight increments:
2 3 4 5 7 8 9 10 11 14 16 18 20 23 24
(5 lbs) (7.5 lbs) (10 lbs) (12.5 lbs) (15 lbs) (17.5 lbs) (20 lbs) (22.5 lbs) (25 lbs) (30 lbs) (35 lbs) (40 lbs) (45 lbs) (50 lbs) (52.5 lbs)
Note: Weight increments represent estimated values only. Exact values can vary due to manufacturing variances.
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Operation
Understanding the locking mechanism function
The Bowflex® SelectTech® Dumbbell features an exclusive locking mechanism designed to ensure proper and complete selection
of the weight plates as well as to ensure weight plate retention during the workout.
Fully understand the function of this mechanism and do tests of the mechanism regularly to make sure it operates correctly.
The locking mechanism supplies two key functions:
1. The mechanism will only let the adjustment knobs turn when the dumbbell handle fully engages the dumbbell base. The
mechanism prevents deselecting (dropping) weight plates from the dumbbell when it is NOT in the dumbbell base.
2. The mechanism will lock the dumbbell handle to the base if the adjustment knobs do not fully engage the weight plate
selection. The mechanism prevents partial selection of the weight plates in which the locking pin is not fully engaged and
does not fully hold the plates.
All locking tabs (D) must point outward.
D
Correct—tabs (D) point outward.
D
Incorrect—tab reversed.
D
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Operation
Given the importance of this locking mechanism, it is critical that you understand how it operates, and periodically test it to make
sure it is functioning correctly.
Testing proper locking mechanism function
1. With the dumbbell handle set in the dumbbell base, turn both adjustment knobs to the
number 2. 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.
2. You should be able to withdraw the handle from the base leaving all the weight plates behind.
3. 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 too much force to try to turn the locked adjustment knob. Too much force can damage the locking mechanism.
4. After confirming the proper function of the locking mechanism as described above, return and fully insert the dumbbell
handle back into the base assembly.
5. With the handle back in the base, turn the adjustment knob on one side to a position that is between the numbers 2 and 3.
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).
6. 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.
7. Return the improperly selected adjustment knob to a full and proper weight selection and assure that the dumbbell handle
can once again be removed.
8. Repeat this test for all adjustment knobs.
9. Assure the entire dumbbell handle assembly is properly tightened. Do this by setting the adjustment knobs to 2 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.
10. You have now tested the function of the locking mechanism. We suggest you repeat this test monthly to make sure that the
locking mechanism operates correctly.
Do not engage the locking mechanism and use the handle to try to lift the dumbbell and base together. To lift the
dumbbell and base together, engage the locking mechanism and use the lift handles molded into the base assembly.
If the dumbbell locking mechanism operates unsatisfactorily in the test procedure above, do the following:
1. Stop use of the product immediately until approved service is available.
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2. Contact your Bowflex
retailer for service.
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Maintenance
Bowflex® SelectTech® Dumbbell maintenance
Equipment must be regularly examined for damage and repairs. The owner is responsible to make sure that regular
maintenance is done. Worn or damaged components must be replaced immediately or the equipment removed from service
until the repair is made. Only manufacturer supplied components can be used to maintain and repair the equipment.
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The Bowflex
the product performing and looking its very best.
1. Should your SelectTech
2. The SelectTech® Dumbbell is internally lubricated and will not require further internal lubrication. The contact between
Do not attempt to disassemble the dumbbell handle or base assembly. These items are not designed to be user serviced.
SelectTech® Dumbbell is a very low maintenance product. However, there are steps that you should take to keep
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Dumbbell handle assembly, plates or base become soiled you may clean them with a cloth lightly
dampened with warm water and a small amount of mild soap. Wipe dry with a separate cloth.
weight plates and selection discs is not lubricated but has naturally low friction. This generally will not require any
lubrication. Should you feel it necessary to lubricate the weight plates and/or selection discs, use only a silicon lubricant,
preferably “food grade”.
Do not use any solvents, harsh detergents, chemicals or bleach on this product − doing so may damage the materials,
resulting in degradation of the product’s performance or strength.
Doing so will void the manufacturers warranty. Contact your local distributor for service.
Optional Accessories
Bowflex® Dumbbell Stand
This attractive stand features an ergonomic design to enhance the functionality of the SelectTech® dumbbells.
• TheV-shape“step-in”designallowstheusertomaintainproperupperbody
position while lifting or replacing the dumbbells in the base.
• The dumbbell handles are positioned in a natural orientation providing a
comfortable and secure lifting position.
• Largeadjustablestabilizerfeetassuremaximumstability.
• Includesfasteningstrapstosecuredumbbellstothebase.
• Integratedtowelrack.
• Dimensions (without dumbbells): 66.5cm x50.6 cm x 57.9 Hcm (26.2”L x
19.9” W x 22.8” H)
Optional exercise bench is available separately.
Additional products are available from Nautilus, Inc. at
www.bowflexinternational.com
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