Leggero DYNO User manual

DYNO
USER MANUAL
CHAIR PROVIDER: THIS MANUAL MUST BE GIVEN TO THE USER OF
THIS DEPENDENT MOBILITY BASE
USER: READ THIS MANUAL BEFORE USING THIS DEPENDENT
MOBILITY BASE AND SAVE FOR FUTURE REFERENCE
Product delivered may vary from the one described and pictured in this manual.
Revision 15-0729

DYNO User Manual
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You have made a great choice for your child by choosing a Leggero chair. We
believe that every child should be able to function to the best of their ability. We
welcome questions and comments about our products and services. Please
contact us or an authorized provider using the information below.
Provider Name
Address
Phone
Email
Website
Authorized Leggero Provider:
Leggero
174 D Shepherd Trail
Bozeman, MT 59718
Toll Free: 1-844-503-KIDS
www.leggero.us

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Table of Contents
Section 1: Introduction & Features Page
1.1 Introduction 4
1.2 Intended Dyno User 4
1.3 Intended Dyno Attendant 4
1.4 Terms of Warranty 4
1.5 Service & Repairs 4
1.6 Features 5
1.7 Seating & Positioning Components 6
1.8 Adjustability & Specications 7
Section 2: Warnings 8
Section 3: Unpacking Your Dyno Chair 11
Section 4: Operation and Adjustment 12
4.1 Wheel Locks 12
4.2 Handlebar Angle Adjustment 13
4.3 Caster Swivel Lock 13
4.4 Seat Tilt Angle Adjustment 13
4.5 Hip Angle Adjustment & Activator Option 14
4.6 Hip Angle Adjustment - Not Equipped with Activator Option 14
4.7 Folding - Equipped with Activator Option 15
4.8 Folding - Not Equipped with Activator Option 15
4.9 Footbed Adjustment 16
4.10 Back Height Adjustment 16
4.11 Seat Depth Adjustment 16
4.12 Tray or Grab Bar Use 17
4.13 Changing Activator Dynamic Springs 17
4.14 Using the Dyno as a Chair in a Motor Vehicle 18
Section 5: Limited Warranty 19
Section 6: Maintenance and Maintenance Record 20

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1.1 Introduction
Thank you for selecting the Dyno chair. This manual explains how to operate, adjust, and
maintain your Dyno chair. The product as described is subject to technical alterations without
notice.
We are sorry that we cannot offer this user information in a format, appropriate for use by
visually impaired people. The visually Impaired must contact an authorized Leggero provider to
obtain information and instruction in the form of verbal communication and hands on training if
necessary.
1.2 Intended Dyno User
Rehab pushchairs and pediatric positioning systems are appropriate for children who are limited
to a seated position and require mobility and positioning assistance. Individuals who need such
assistance can have a wide variety of diagnosis limiting their ability to achieve mobility without
such a system. For maximum occupancy rating and additional specications, reference section
1.7 of this manual.
1.3 Intended Dyno Attendant
Attendants who operate the chair must be visually, mentally, and physically capable of safely
operating the chair under all circumstances. Attendants must read and follow all instructions
provided in this manual.
1.4 Terms of Warranty
Warranty applies only when the product is used in concordance with the manufacturer’s
recommendations and for the intended purposes and specied conditions of the product.
1.5 Service and Repairs
Service and repair of the Dyno chair should be performed only by Leggero authorized providers.
Should any problems arise, please contact the provider that supplied the chair. Authorized
providers only replace and install original Leggero spare parts.
Section 1: Introduction, Warnings, & Features

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1.6 Features
Handlebar Angle
Adjustment
Caster Swivel
Lock
Quick Release
Rear Wheels
Wheel Lock Lever
Adjustable Height Back
Adjustable Height
Footbed
Serial Number Label
Adjustable Depth Seat
Sun & Weather Shade
Rear Storage
Pocket
Armrests/Tray Receivers
Dynamic & Hip Angle
Lock Mechanism
Seat Angle
Adjustment
Folding
Strap
Folding

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1.7 Seating & Positioning Components
Respond Back Cushion
Headrest Options Lateral Thoracic Supports
Lateral Pelvic Supports
Therapeutic Positioning Tray

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1.8 Adjustability and Specications
Adjustability
Seat Depth 6-14” (15-35cm)
Seat Width 14” (35cm)
Lower Leg Length 8.5-14” (15-35cm)
Back Height 13-21” (29-53cm)
Hip Angle Adjustment 90°, 120°
Seat Angle 20°, 23°, 26°
Specications
Maximum User Weight 80lb (36kg)
Push Handle Height Range 40-45” (101-114cm)
Mobility Base Weight 26lb (12kg)
Overall Width 26.5” (67cm)
Front Tire Diameter 10” (25cm)
Rear Tire Diameter 16” (41cm)
Folded Dimensions 39 x 18 x 26.5” (99 x 46 x 67cm)
Reversing Width 41” (104cm)
Maximum Safe Slope 5°

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Section 2: Warnings
Read this Manual Completely Before Using
All caregivers and/or attendants must read this user manual prior to operating the Dyno chair.
Familiarize yourself with the handling and functions of the product prior to actual use. If there is
any information in this manual that you do not understand, please contact your authorized Leggero
provider for assistance.
Failure to follow instructions or comply with warnings within this manual could result in
personal injury and/or damage to the Dyno chair, potentially voiding the warranty.
WARNING!
The word “WARNING” or this symbol indicate practices that are unsafe or
dangerous and could result in serious injury to the occupant and/or caregiver.
Symbols Used on Product Warning Labels and in User Manual
WARNING! READ INSTRUCTION MANUAL
Choose The Right Chair & Safety Options
In the mobility industry, there are several options available to meet the needs of children. Make
sure that your (and your provider’s) choice of chair and other options takes into account your child’s
comfort, positioning, physical limitations, and hazards that may be encountered during daily use.

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WARNING! All caregivers and/or attendants must read this user manual prior to operating the Dyno
chair. Familiarize yourself with handling and functions of the product prior to actual use. If there is
any information in this manual that you do not understand, please contact your authorized Leggero
provider for assistance.
WARNING! Non-conventional use and/or handling of the product can be dangerous. The pushchair
is not safely suitable for skating or similar high speed activities. Swiveling front wheels can wobble at
higher speed and can cause a sudden stop and tip over of the chair. Use of the caster swivel locks
is recomended. For maximum safety use the pushchair only at regular walking speed. Under no
circumstance should you let go of the handlebar while pushing. Do not ever push the chair away.
WARNING! The initial set up of this pushchair must be performed by a qualied technician.
WARNING! Procedures other than those described in this manual must be performed by a qualied
technician.
WARNING! The weight carried by the Dyno chair must not exceed the total weight limit of 80lb/36kg
(Maximum occupant weight plus weight of accessories and/or items carried.)
WARNING! Adjustments made to the chair may affect stability, increasing the risk of tipping.
Adjustments must be made by your authorized Leggero provider.
WARNING! Avoid getting the chair wet or storing the chair in damp environments. Excess moisture
can cause rust or corrosion, which can result in component failure. If the chair is exposed to moisture,
dry thoroughly.
WARNING! Do not leave the chair or child in the sun or near other heat sources since the surfaces on
the chair may reach temperatures capable of burning the child. Do not leave the chair or child outside
in cold temperatures because contact with a chair in temperatures below freezing could result in injury.
Damage to the chair may also result from exposure to extreme hot or cold temperatures.
WARNING! The chair should only be used on solid and level ground. Do not attempt to push
the chair over or into obstacles. Always remove the child from the chair when lifting chair to clear
obstacles.
WARNING! Do not use the chair on slopes steeper than 5 degrees. Do not leave the chair parked on
a slope or an incline. Pay particular attention when on slopes and inclines to prevent the child from
falling out of the chair, the chair from tipping over, or the chair from rolling away.
WARNING! Before leaving the chair and before getting into and out of it, always engage the wheel
locks. Do not use the wheel locks to stop the chair while moving.
Warnings: Failure to Follow These Warnings Could Result in
Serious Injury or Death

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WARNING! Never leave your child unattended in the chair even if they are strapped in and the wheel
locks are engaged.
WARNING! If the chair occupant reaches for objects in front, to the side, or behind the chair, be sure
that they do not lean too far. The shift in the center of gravity might cause the chair to tip over.
WARNING! If equipped with pneumatic tires, the handling of the chair is inuenced by tire pressure.
Correctly inated tires considerably improve maneuverability. Front and rear tire air pressure should
be at least 35 PSI/240 kPa.
WARNING! Do not stand on the footplate when transferring into or out of the chair.
WARNING! When folding the chair, be aware that there is a risk of injury through ngers becoming
crushed or trapped. Reference section 4.7 of this manual for further information.
WARNING! The chair is only intended to carry one child at a time. Do not carry more than one child
at a time.
WARNING! Only lift the chair by parts that are solidly attached. The chair should be lifted by the side
frame members whenever possible. If folded, hold the chair by the lower side frame tubes. Always
use two people for lifting to prevent injury and damage to the chair.
WARNING! Please keep packaging material away from children. Discard all plastic packaging
material immediately after unpacking.
WARNING! If your chair is not equipped with the transit option, do not use it as a seat in a motor
vehicle. Transfer the child from the chair to an approved motor vehicle seat. If your chair is equipped
with the transit option, refer to the section 4.14 in this manual.
WARNING! The chair must be inspected and maintained per the chart in Section 6: Maintenance.
Problems detected must be repaired prior to resuming use of the chair.
WARNING! Many of the fasteners used to construct the Dyno chair consist of a bolt with a nut that
contains a nylon lock ring. These connections must be maintained and secured with the original
equipment fasteners and properly adjusted. For proper adjustment of pivot points, consult your
authorized service provider.

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Section 3: Unpacking the Dyno Chair
1. Remove chair from packaging.
2. Discard all plastic packaging materials.
3. Install rear wheels, reference Figure 1.
4. Check for proper adjustment of quick release
axles by pulling outward on wheel. Wheel
should hold in place.
5. Engage wheel locks, reference section 4.1 of
this manual.
6. Unfold frame and seat back, reference Section
4.7 of this manual.
7. Check tire pressure. Front and rear tire
pressure should be 35 PSI/240 kPA.
Figure 1
WARNING! Please keep packaging material
away from children. Discard all plastic packaging
material immediately after unpacking.

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Section 4: Operation and Adjustment
Tools Required:
4mm Hex Wrench 10mm Wrench
4.1 Wheel Lock Operation
1. To engage wheel locks, pull up on center
of crossbar with foot. Reference Figure 2.
2. Verify wheel locks are engaged on each
side by trying to move chair front to back.
3. To disengage wheel locks, push down on
center of crossbar with foot. Reference
Figure 3.
Figure 2
5mm Hex Wrench
To Engage
Pull Up
To Disengage
Push Down
Figure 3

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4.2 Handlebar Angle Adjustment
1. Press and hold buttons with thumbs on inside of each
adjustment ratchet, reference Figure 4.
2. Adjust handlebar to desired angle.
3. Release buttons.
Figure 4
4.3 Caster Swivel Lock Engagement
1. To engage caster swivel lock, rotate wheel forward as
shown in gure 6.
2. Lift plunger on swivel lock mechanism and turn 90
degrees.
3. Release plunger and verify that caster fork is locked.
4. Reverse procedure to return to swiveling mode.
Figure 7
4.4 Seat Tilt Angle Adjusment
1. Engage wheel locks.
2. Press snap buttons inward.
3. Push or pull upper bent tube to align desired position.
4. Release snap buttons and verify proper engagement.
Figure 5, Unlocked
Figure 6, Locked
Unlocked Locked
Swivel
Lock

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4.5 Hip Angle Adjustment & Activator
Dynamic Seating Mode
Chairs Equipped with Activator Dynamic Seating Option
1. Engage wheel locks.
2. Place both hands on handlebar.
3. To lock hip angle in 90° position, push handlebar as far
forward as possible.
4. To lock hip angle in 120° position, pull handlebar as far
rearward as possible.
5. Hold handlebar position, using foot pull upward on hip
angle lock mechanism. Reference Figure 8.
6. Verify that hip angle position is locked by lightly pushing
and pulling on handlebar.
7. To return to unlocked Activator Dynamic Seating mode,
push down mechanism until it clicks in place. Notch will
be aligned with rear axle tube as shown in Figure 8.
Figure 8, Hip Angle Unlocked
4.6 Hip Angle Adjustment
Chairs NOT Equipped with Activator Dynamic Seating Option
1. Engage wheel locks.
2. Place both hands on handlebar.
3. Using foot, push downward on hip angle lock bar.
Reference Figure 10.
4. Adjust hip angle to desired position.
5. Release bar.
6. Verify that hip angle position is locked by lightly pushing
and pulling on handlebar. Figure 10
Figure 9, Hip Angle Locked

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4.7 Folding and Unfolding
Chairs Equipped with Activator Dynamic Seating Option
1. Engage wheel locks.
2. Place hands on handlebar.
3. Adjust chair to hip angle unlocked (Activator
Dynamic) position.
4. Using foot, push down on top of hip angle lock
mechanism.
5. Push handlebar forward and down.
6. Adjust handlebar forward to achieve lowest prole.
7. To unfold, pull back on handlebar.
4.8 Folding and Unfolding
Chairs NOT Equipped with Activator Dynamic Seating Option
1. Engage wheel locks.
2. Place hands on handlebar.
3. Using foot, push down on top of hip angle lock bar.
4. Push handlebar forward and down.
5. Adjust handlebar forward to achieve lowest prole.
6. To unfold, pull back on handlebar.
WARNING! When folding or unfolding, keep arms,
hands, and feet clear of moving components to avoid injury.
Reference Figure 11, arrows indicate potential pinch points.
Pull Back on
Handlebar to Unfold
Push down on top of
mechanism with foot
Push Forward on
Handlebar
Dyno in Folded
Position
Figure 11
Figure 12
Figure 13
Push Down
Here to Fold
Push Down
Here to Fold

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4.9 Footbed Adjustment
1. Loosen button head bolts 1 on left and right
clamps (2 bolts per side). 4mm hex wrench
required.
2. Slide footbed up or down to desired position.
3. Tighten bolts.
4. Footbed position can also be moved front to
back by removing and reinstalling at head
bolts 2 (2 per side) in different hole positions.
4mm hex wrench required.
4.10 Back Height Adjustment
1. Pull back height adjustment levers outward,
reference Figure 15.
2. Adjust back height to desired position.
3. Push back height adjustment levers inward until
they snap into locked position.
Figure 14
Figure 15
4.11 Seat Depth Adjustment
1. Loosen seat cushion straps.
2. Loosen knob under center of seat plate.
3. Adjust front seat assembly to desired depth.
4. Tighten knob.
5. Tighten seat cushion straps.
Figure 16
Unlocked Locked
Knob
1
2

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4.12 Tray or Grab Bar Use
1. To install tray or grab bar, swing left and right cam locks
downward. Reference Figure 17.
2. Slide tray or grab bar into receivers to desired depth.
3. Swing left and right tray cams upward to lock in place.
Reference Figure 18.
Figure 17
Figure 18
4.13 Changing Activator Dynamic Springs
For Chairs Equipped with Activator Dynamic Seating Option.
Resistance of Dynamic back can be changed by installing
light, medium, or hard springs. If the child is able to rest
with the back extended beyond a 90 degree hip angle, then
harder springs are needed.
1. Remove upper nut and washer, Reference Figure 19.
4mm hex wrench & 10mm wrench required. Be careful
not to lose inner spacers.
2. Unhook spring eyelet from bolt and slide plate forward to
access lower bolt head on backside of plate, Reference
Figure 20. Remove Lower nut and washer.
3. Remove current springs, be careful not to lose inner
spacers.
4. Install different weight springs.
5. Reinstall lower washer and nut. Tighten, then back off 1/4
turn.
6. Hook spring eyelet over upper bolt. Reinstall washer and
nut. Tighten, then back off 1/4 turn.
Figure 19
Figure 20

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4.14 Using The Dyno Chair As A Seat In A Motor Vehicle
The Dyno Chair is approved for transporting children in motor vehicles when it is equipped with the OPTIONAL transit
feature and used in accordance with these instructions. The chair must be secured in a forward-facing position with
a Wheelchair Tie-down and Occupant Restraint System (WTORS) which meets the requirements of SAE J2249
Recommended Practice—Wheelchair Tie-down and Occupant Restraint Systems For Use in Motor Vehicles.
IMPORTANT INFORMATION:
This chair conforms to and has been dynamically tested in compliance with ANSI/RESNA WC/Vol. 1 – Section 19.5.3.
Please contact Leggero or your authorized Leggero provider if you have any questions regarding use of the chair for
seating in a motor vehicle. Contact information can be found on page 2 of this manual.
WARNINGS & INSTRUCTIONS:
• The Dyno chair must be used as indicated in these instructions and the instructions supplied by the vehicle mounted
tie-down manufacturer.
• Chair occupant should be transferred to the vehicle seat and use the vehicle restraint system whenever possible.
• The Dyno Chair can accommodate up to 80 lb. Do not exceed this occupant weight.
• The Dyno Chair must be placed in a forward-facing position when used as a seat in a motor vehicle. Use an approved
4-point strap-type tie-down system for the chair. Use an approved 3-point belt to restrain occupant.
• For approved transit tie-down locations and location of belt/harness attachment pin, see Figures 21 and 22.
• Restraints must not be held away from the child’s body by chair components or accessories.
• Belt straps should be adjusted until they are snug and do not have slack. If you can pinch the webbing of the belt
straps between your ngers, then it is too loose.
• Only belt restraints that comply with the provisions of ANSI/RESNA WC/Vol. 1 – Section 19 4.9.2-4.9.5 and 5.2 that
have been dynamically tested in accordance with Annex A & 5.3 of the same, should be used on the chair for use as a
restraint in a motor vehicle.
Figure 21 Figure 22
WARNING! If your chair is not equipped with the transit option, do not use it as a seat in
a motor vehicle. Transfer the child from the chair to an approved motor vehicle seat.

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Section 5: Limited Warranty
A. THIS WARRANTY IS EXTENDED ONLY TO THE ORIGINAL PURCHASER OF OUR PRODUCTS.
B. FOR LIFETIME
Leggero LLC warrants the frame and quick-release axles of this chair against defects in materials and
workmanship for the life of the original purchaser. The expected life of this frame is ve years.
C. FOR ONE (1) YEAR
We warrant all original equipment parts and components of this chair against defects in materials and
workmanship for one year from the date of the rst consumer purchase.
D. LIMITATIONS
1. We do not warrant:
• Tires, tubes, upholstery, push handle grips, or armpads.
• Damage resulting from neglect, misuse, or from improper installation or repair.
• Damage resulting from transit use.
• Damage from exceeding the weight limit indicated on the serial number label.
2. This warranty is valid only when the product is used according to the specied conditions and the
intended purposes, following all manufacturer recommendations. It is void otherwise.
3. This warranty shall not apply to problems arising from normal wear, and such evaluation will be solely
determined by Leggero LLC.
4. This warranty is void if the product is modied without Leggero’s express written consent including, but
not limited to, modication through the use of unauthorized parts or attachments; products damaged by
reason of repairs made to any component without specic consent of Leggero; or to a product damaged
by circumstances beyond Leggero’s control, and such evaluation will be solely determined by Leggero.
5. This warranty is void if the original serial number is removed or altered.
6. This warranty applies in the USA only. Check with your supplier if international warranties apply.
E. WHAT MANUFACTURER WILL DO
Our sole liability is to repair or replace covered parts. This is the exclusive remedy for consequential
damages.
F. WHAT YOU MUST DO
1. Obtain from us, while this warranty is in effect, prior approval for return or repair of covered parts.
2. Return the product or part(s), freight pre-paid to Leggero LLC. Contact Leggero customer service at
1-844-503-KIDS for a return address and to obtain a return authorization number (RA#).
3. Pay the cost of labor to repair, remove or install parts.
G. NOTICE TO CONSUMER
1. If allowed by law, this warranty is in place of any other warranty, written or oral, express or implied,
including a warranty of merchantability, or tness for a particular purpose.
2. This warranty gives you certain legal rights. You may also have other rights that vary from state to state.

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Section 6: Maintenance
Please consult your authorized provider if you have questions regarding maintenance of your Dyno
chair. Consistent and thorough maintenance will extend the useful life of your chair. Improper
maintenance can signicantly decrease the useful life of the chair. Any damaged parts should be
replaced prior to resuming use of the chair. The chair should be cleaned regularly and should be
serviced by an authorized dealer at least once per year.
Warranty might be affected if proper maintenance is not performed at the specied intervals. Please
see table below for recomended maintenance procedures and frequency. There is a maintenance
record on the following page of this manual that should be used to document maintenance activities.
Maintenance Activity Weekly Monthly
Check tire air pressure (if applicable) P
Check wheels and tires for wear or damage P
Check wheel lock function P
Check for proper caster alignment P
Verify that all fasteners are tight P
Verify that quick release axles function properly P
Check tilt lock mechanism for proper engagement P
Check recline lock mechanism for proper engagement P
Check all structural components for wear or damage P
Check all accessory components for damage P
We recommend that the chair be cleaned regularly:
• Clean all frame components and plastic parts using mild detergents only.
• Fabric parts may be washed. If using a washing machine, put them in a linen
bag or pillow case. Air dry.
• In most cases, wiping with a damp cloth is sufcient.
• Do not use your chair in salt water as severe damage may result.
• Keep sand or other particles from damaging the wheel and caster fork
bearings.