04
AIR300 LEG EXTENSION PRO
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OPERATION MANUAL
It is the sole responsibility of the purchaser of Keiser Corporation equipment to instruct all individuals, whether they are the end-
user or supervising personnel, on proper usage of the equipment. Keiser Corporation recommends that all users of its equipment
be informed of the following information before use.
1. Read these instructions.
2. Heed all warnings.
3. Follow these instructions.
4. Intended use of the Air300 Leg Extension Pro is for
physical activity or Physiotherapy (sometimes referred
to as physical therapy).
5. The Air300 Leg Extension Pro is intended for individuals
aiming to maintain and restore maximum movement and
functional ability throughout their lifespan, including
circumstances where movement and function are limited
by aging, injury, pain, disease, disorders, conditions, or
environmental factors, especially in case of using the
Air300 Leg Extension Pro in physical therapy.
6. Consult your physician before beginning any exercise
program.
7. The Air300 Leg Extension Pro is intended for use in
training areas of organizations where access and control
are specifically regulated by a person responsible for
determining the suitability of use and maintenance.
8. Maximum user weight limit: 441 lbs (200 kg).
9. Use the Air300 Leg Extension Pro indoor in a climate-
controlled environment only. Keep away from areas of
extreme humidity.
10. The use of this Air300 Leg Extension Pro for any purpose
not explicitly specified by the manufacturer in this manual
is prohibited.
11. Wear proper exercise clothing and shoes for exercise.
Avoid wearing loose clothing that might catch on any
moving parts. Tie long hair back and up away from the
Seat Back adjustment mechanism.
12. The Air300 Leg Extension Pro is not a toy. Children shall
not play with the Air300 Leg Extension Pro. Children under
14 years old should not use the Air300 Leg Extension
Pro. Keep children and pets clear from the Air300 Leg
Extension Pro at all times, especially while in use. Cleaning
and user maintenance shall not be performed by children.
13. The Air300 Leg Extension Pro can be used by children
age 14 years and above. Persons with mental disabilities,
reduced physical, mental, or sensory capabilities, or lack
of experience or knowledge should not use the Air300 Leg
Extension Pro without constant supervision by a spotter/
supervisor.
14. Proper warm-up required to help prevent injury. This
Air300 Leg Extension Pro should only be used with
proper instructions. Always maintain good form and
control during exercise. If you feel pain or are unable to
maintain good form, stop immediately. Failure to follow
these instructions could result in injury.
15. Always maintain control of the Leg Cushions (Exercise
Arms) during exercise. The sudden release of the Exercise
Arms during exercise will cause the Exercise Arms to
recoil uncontrollably and could result in serious injury
or property damage. Bring the Exercise Arms to the
start position in a controlled manner to safely exit the
equipment. If at any time you are not able to control your
legs during exercise, push the left (“-”)Thumb Button to
reduce the resistance.
16. Never perform Power Test without a proper warm-up. This
high resistance/high-speed test should only be performed
with proper instructions (see page 15 “Power Test” for
complete instruction). Always maintain good form and
control during the test. If you feel pain or are unable to
maintain good form, stop immediately. Failure to follow
these instructions could result in injury.
17. Never make adjustments to the machine during exercise as
this may cause muscle strain. Always return the Exercise
Arm to the start position before making any adjustments
to help prevent injury.
18. The highest level of safety can only be ensured if the
equipment is regularly inspected for damage and wear.
Always check the equipment before use for proper function
and any damaged, worn, or broken parts. Immediately
replace damaged, worn, or broken parts. Do not use the
Air300 Leg Extension Pro until all repairs have been
completed and tested by a Keiser-certified technician.
19. Use only replacement parts supplied/recommended
by Keiser Corporation. Attempting to repair or replace
any damaged, worn, or broken parts on your own is not
recommended. A Keiser-certified technician should be
consulted.
20. The use of any exercise equipment, including, without
limitation, Keiser’s strength training equipment in which
resistance can be changed at any time during the repetition,
without proper instruction and supervision violates the
terms of the agreement for the purchase of such products.
The ability to add resistance anytime during a repetition,
including, without limitation, the ability to do a heavy
negative may be dangerous, especially for anyone that
does not recognize or respect the potential danger.
21. Users, agents, and/or anyone directing the use of the
Air300 Leg Extension Pro shall determine the suitability
of the Air300 Leg Extension Pro for its intended use, and
said parties are specifically put on notice that they shall
assume all risk and liability in connection herewith.
22. If you do not understand these instructions or have doubts
about the safety of the installation, assembly, or use of
this product, contact Keiser Customer Support:
1 559 256 8000
Telephone and Live Chat
Monday—Friday 7 am to 5:30 pm PST
IMPORTANT SAFETY INFORMATION
