Keiser Air250 Abdominal Operation Manual

General Information

Introduction

Congratulations on the purchase of your new Keiser Air250 Abdominal. Keiser's Dynamic Variable Resistance safely builds strength at any speed, key to building maximum power. Read and understand this manual before use for safety, best experience, and maximum gains. Contact Keiser Customer Support at 1 559 256 8000, keiser.com/support (Mon-Fri, 9 am-5 pm PST), or service@keiser.com for questions.

Register Your Purchase

Register your Air250 Abdominal for safety notifications and faster warranty service. Scan the QR Code to access the online warranty registration form or visit: https://www.keiser.com/forms/warrantyregistration.

Serial Number Information

Record the serial number below. The serial number location and information are detailed in Figure 1.

Serial No.: _________________________

Figure 1. Serial Number Location and Information

• A: Manufacturer name, logo, and address
• B: Country of manufacture
• C: Patent information notification
• D: CE mark
• E: TÜV SÜD Mark
• F: Quality management ISO standard
• G: Maximum User Weight Limit
• H: Directive and standards compliance
• I: European Authorized Representative
• J: Serial number and date of manufacture
• K: Model number and product description
• L: WEEE Directive Mark

Important Safety Information

It is the sole responsibility of the purchaser of Keiser Corporation equipment to instruct all individuals on proper usage. Keiser Corporation recommends that all users be informed of the following before use:

1. Read these instructions.
2. Heed all warnings.
3. Follow these instructions.
4. Consult your physician before beginning any exercise program.
5. The Air250 Abdominal is intended for use in training areas of organizations where access and control are specifically regulated.
6. Maximum user weight limit: 441 lbs (200 kg).
7. Use indoors in a climate-controlled environment only. Keep away from areas of extreme humidity.
8. The use of this Air250 Abdominal for any purpose not explicitly specified by the manufacturer is prohibited.
9. Wear proper exercise clothing and shoes. Avoid wearing loose clothing. Tie long hair back.
10. The Air250 Abdominal is not a toy. Children shall not play with it. Children under 14 years old should not use it. Keep children and pets clear at all times, especially while in use. Cleaning and user maintenance shall not be performed by children.
11. The Air250 Abdominal can be used by children age 14 and above. Persons with disabilities or lack of experience/knowledge should not use it without constant supervision.
12. Proper warm-up is required. Use only with proper instructions. Always maintain good form and control. Stop immediately if you feel pain or are unable to maintain good form.
13. Always maintain control of the Chest Pads (Exercise Arm). Sudden release will cause uncontrolled recoil. Bring the Exercise Arm to the start position in a controlled manner. If unable to control resistance, push the left ("-") Thumb Button to reduce resistance.
14. Never perform Power Test without proper warm-up. This high resistance/high-speed test requires proper instructions. Always maintain good form and control. Stop immediately if you feel pain or are unable to maintain good form.
15. Never make adjustments to the machine during exercise. Always return the Exercise Arm to the start position before making any adjustments.
16. The highest level of safety can only be ensured if the equipment is regularly inspected for damage and wear. Check equipment before use. Immediately replace damaged, worn, or broken parts. Do not use until all repairs are completed and tested by a Keiser-certified technician.
17. Use only replacement parts supplied/recommended by Keiser Corporation. Consult a Keiser-certified technician for repairs.
18. Using exercise equipment without proper instruction and supervision violates purchase agreement terms. The ability to add resistance anytime during a repetition can be dangerous.
19. Users, agents, and/or anyone directing the use shall determine suitability and assume all risk and liability.
20. If you do not understand these instructions or have doubts, contact Keiser Customer Support: 1 559 256 8000, service@keiser.com, keiser.com/support.

Conventions Used:

• WARNING: Indicates a hazardous situation that, if not avoided, could result in death or serious injury.
• CAUTION: Indicates a hazardous situation that, if not avoided, could result in minor or moderate injury.
• IMPORTANT: Indicates information considered critical, but not hazard-related.

Safety and Notification Labels: Maintain and do not remove safety or notification labels. Contact Keiser Corporation for replacements if unreadable or missing.

Technical Specifications

Equipment Specifications

Figure 2. Air250 Abdominal Equipment Specifications

• Resistance Range: 0 - 276 lbs (0 - 125 kg) change resistance in 1 lb/kg increments
• Adjustable Seat
• Maximum user weight limit: 441 lbs (200 kg)

Dimensions:

• Height: 47 inches (1,194 mm)
• Width: 37 inches (940 mm)
• Depth: 33 inches (838 mm)
• Weight: 115 lbs (52 kg)

Technical Data

Air Storage Tank

Operating parameters:

• Maximum working pressure: 125 psi (8.6 bar)
• Maximum working temperature: 104°F (40°C)
• Minimum working temperature: 32°F (0°C)
• Maximum vessel capacity: 72 in³ (1.18 L)

Power

• 1.5V D Alkaline Batteries (quantity 2, Keiser PN 966500)
• 3V CR2032 Lithium Coin Cell Battery (quantity 1) - Permanently attached, not serviceable. Contact Keiser Customer Support for service.

Keiser Chip System

The eChip insertion slot receives the Keiser eChip for data transfer and storage.

Installation and Placement

No assembly required. Place the Air250 Abdominal on a flat, level surface. Ensure the base frame makes full contact with the floor. Relocate if gaps are present.

Connect the Equipment to the Keiser Air System

WARNING: Never connect equipment to an air source capable of exceeding 120 psi / 8.27 bar. Use only clean, dry, regulated compressed air at the rated pressure range of 100-120 psi / 6.89-8.27 bar.

1. Plug the Compressor into the appropriate power source to power the Compressor ON (allow the Compressor to build up to a minimum of 100 psi). Keiser Compressor and Keiser Air System not included, sold separately.
2. Connect the 1/4-inch Quick Disconnect (QD) from the equipment into the Keiser Air Supply (see Figure 3).

Figure 3. How to Connect the Equipment to the Keiser Air Supply

Training Space

Figure 4. Training Space for the Air250 Abdominal

• The equipment footprint is 37 inches x 33 inches (940 mm x 838 mm).
• The minimum recommended free space around the equipment is 24 inches (610 mm) for the front and sides.

Operation

Equipment Overview (Figure 5)

Figure 5. Air250 Abdominal

1. Increase/Decrease (+/-) Thumb Buttons
2. Power Display
3. Cylinder
4. Air Tank
5. Anti-Slip Steps
6. Quick Disconnect (QD) with Tube
7. Locking Pin (Seat Height Adjustment)
8. Seat
9. Processor Box
10. Exercise Arm
11. Chest Pad
12. eChip
13. Instruction Placard (not shown)

Power Display (Figure 6)

When using the eChip, ensure that it is fully inserted into the slot.

Figure 6. Power Display Overview

CAUTION: Rate monitoring systems may be inaccurate. Over exercising may result in serious injury or death. If you feel faint, stop exercising immediately. "Peak Power" is not suitable for use in applications where the health and safety of a patient may be dependent on the accuracy of those parameters. Use of the exercise Target program requires medical supervision and compliance with exercise testing guidelines.

Display Features

• LINE 1 - RESISTANCE: Displays current resistance or OFF (sleep mode). Adjust with (+/-) Thumb Buttons. Resume normal operation by pressing a Thumb Button or inserting the eChip. "Lo-bA" signal indicates low batteries (replace D batteries, see page 16).
• LINE 2 - SET OR REPETITIONS: Displays current repetition count, or set count (1-9, indicated by three horizontal bars) after eChip insertion. Repetition count ranges from 0-99. Reset reps by pressing both (+/-) Thumb Buttons simultaneously. In Power Test mode, displays rep count per test section.
• LINE 3 - TARGET REPS: Displays repetitions from the previous visit's corresponding set (normal workout) or "Pr." (Power Test) when eChip is inserted. In Power Test mode, displays "P1" (low resistance set) or "P2" (high resistance set).
• LINE 4 - CURRENT POWER / PERCENT OF PEAK POWER: During exercise, displays percent of peak power for the most recent repetition. At end of Power Test, shows resistance to achieve maximum power. With eChip, shows previous resistance or resistance for maximum power. Flashes when calculated resistance for maximum power is displayed.
• LINE 5 - PEAK POWER: Displays the highest power achieved during this workout or since the data was last reset.
• LINE 6 - MACHINE ADJUSTMENT: Seat position can be tracked and recorded with the eChip. Press arrows above/below the window to input the setting. Adjustment can only be changed after eChip insertion and before the third repetition.
• LINE 7 - eCHIP READER: Located at the bottom right of the Power Display.
• LINE 8 - eCHIP: Collects workout data, stores up to 24 equipment models (with 4 position settings each) and up to 240 workout sets across Keiser Air and Infinity Series. Enables recall and setup. Keiser eChip software allows viewing, storing, and exporting data (.csv). Three user eChips included. USB Power Kit available for data transfer. See keiser.com/support for eChip software system requirements, download, and user manual.

Proper Operation Check

Check equipment condition and function before every workout:

• A. Thumb Buttons and Display: Press Thumb Buttons to check for proper "+ / -" operation and that the Display powers on.
• B. Exercise Arm: Moves freely; no loose parts in the linkage system.
• C. Upholstery: Chest Pads and Seat have no excessive wear and are free of rips or tears.
• D. Seat Adjustment: Seat functions and engages into setting positions properly; Locking Pin engages properly into the post.
• E. Stability: Equipment is level to a solid, flat surface.
• F. Air Leaks: No air leaks audible in the system.

Figure 7. Proper Operation Check Illustration

WARNING: Immediately replace damaged, worn, or broken parts. Do not use the Air250 Abdominal until all repairs have been completed and tested by a Keiser-certified technician. "Lo-bA" = Batteries are low, replace immediately. If batteries are dead, the Power Display remains blank.

How to Use the Air250 Abdominal

1. Adjust the Seat height to allow the Chest Pads to rest firmly against your upper chest.
2. Sit with your back supported by the Seat backrest, feet on the floor (or on the Anti-Slip Step).
3. Grasp the Handles with an underhand grip and adjust the resistance with the Thumb Buttons.
4. Curl your upper body forward; return slowly.

Figure 8. How to Use the Air250 Abdominal

Shows seat adjustment using the Locking Pin.

Figure 9. Air250 Abdominal Target Muscles

Identifies the Rectus Abdominis as the target muscle.

CAUTION: Consult your physician before beginning any exercise program. If you feel pain, faintness, or are unable to maintain good form, stop immediately. This equipment should only be used with proper instructions. Proper warm-up required to help prevent serious injury. Always maintain good form and control during exercise. Use caution when increasing/decreasing resistance during exercise. Never make adjustments to the machine during exercise; failure to do so could result in serious injury.

Concentric Phase (Forward Movement)

Flex your upper body forward using your abdominal muscles for the movement. Keep your body in contact with the Seat and Chest Pad during movement.

Eccentric Phase (Backward Movement)

Return the Chest Pads (Exercise Arm) to the start position in a smooth, controlled manner. Slower speed during backward movement is recommended. Maintain control of the load; keep the Exercise Arm off of the frame stop throughout the exercise.

Breathing

• Exhale during the concentric phase (forward movement).
• Inhale during the eccentric phase (backward movement).

Training Tips

• Ensure your feet are on the floor, or the anti-slip step, throughout the exercise.
• Maintain the natural curvature of your spine.
• Avoid rocking your body to create momentum when moving heavy loads.

Power Test

CAUTION: Test should only be performed with proper instruction. Never perform Power Test without proper warm-up. Always maintain good form and control throughout test. Rate monitoring systems may be inaccurate; over exercising may result in serious injury or death. If you feel faint, stop exercising immediately. "Current Power," "Peak Power," and "Percent of Peak Power" are not suitable for use in applications where the health and safety of a patient may be dependent on the accuracy of those parameters. The use of any exercise program requires medical consultation and compliance with exercise testing guidelines.

Test Protocol (KEISER Six-Rep Test)

The Power Test is used to determine the resistance at which you achieve MAXIMUM POWER. The test consists of two sets:

• SET 1: Three repetitions, Low resistance, high speed (10% of your maximum).
• SET 2: Three repetitions, High resistance, high speed (80-90% of your maximum).

Perform all repetitions at the highest possible speed at the given resistance; speed is essential in power output. The Power Test may be performed with or without an eChip.

1. START TEST: Press and hold both Thumb Buttons until "6 r" (Test Mode) displays in the RESISTANCE window, then release the Thumb Buttons. TARGET REPS window displays "P1" (Power Test Set 1).
2. SET RESISTANCE, LOW LEVEL: Set the resistance to 10% of your maximum.
3. POWER TEST, SET 1 (P1): Do one repetition at maximum speed. Pause 10 seconds. Repeat two more times. (You can adjust and test your resistance setting between the first and second rep; the rep count will reset to 1).
4. SET RESISTANCE, HIGH LEVEL: Increase the resistance to a high level (80-90% of your maximum). TARGET REPS window displays "P2" (Power Test Set 2).
5. POWER TEST, SET 2 (P2): Do one repetition at maximum speed. Pause 10 seconds. Repeat two more times. (You can adjust and test your resistance setting between the first and second rep; the rep count will reset to 1).
6. TEST COMPLETE: The flashing number is your Resistance setting for Maximum Power.

To exit Power Test or resume exercise, press both Thumb Buttons until "CLEr" is displayed or remove eChip.

TROUBLESHOOT: "Er" numbers 1-4 displayed in the CURRENT POWER window indicates not enough difference in resistance between the low and high sets. Try again with a greater difference. To restart the Power Test, reinsert eChip (if used) or begin at Step 1.

Maintenance

CAUTION: SERVICE AND REPAIR SHALL ONLY BE PERFORMED BY KEISER-CERTIFIED TECHNICIANS. Failure to follow these instructions can result in serious injury.

Preventative Maintenance Schedule

WARNING: THE HIGHEST LEVEL OF EQUIPMENT SAFETY CAN ONLY BE ENSURED IF THE EQUIPMENT IS REGULARLY INSPECTED FOR DAMAGE AND WEAR. Immediately replace damaged, worn, or broken parts. Do not use the Air250 Abdominal until all repairs have been completed and tested by a Keiser-certified technician.

• Daily: Check for safe and proper function (perform "Proper Operation Check," page 11).
• Weekly: Clean chrome and paint where applicable. Wipe down with a clean cloth. Use water and mild soap (neutral, non-caustic) if necessary, targeting areas in contact with sweat. Wipe dry.
• Monthly: Check parts most susceptible to wear (Upholstery, Linkage System, Thumb Buttons, Hand Grips) are not damaged or broken.
• Quarterly: Wax chrome and paint where applicable; wax upholstery. Clean Hand Grips. Inspect Air Line Filter. Check externally visible screws are fastened properly.
• Annually and Other Required Maintenance: Clean and lubricate the Cylinder Rod. Inspect Air Line for kinks, tears, or breaks. Inspect Frame for any weakening in weld areas. Lubricate Pivot Bushings. Inspect Exhaust Muffler and Air Filter for discoloration; replace if necessary. Verify compressor cycle on/off between 100-120 psi. See page 17 "Annual Maintenance" for complete instructions. Battery Replacement (when "Lo-bA" appears on Power Display). Contact Keiser Customer Support for Air Compressor operator manual.

IMPORTANT: Do not use household or industrial cleaners as they contain caustic chemicals. Use only mild soap/detergent (neutral, non-caustic) to clean.

Contact Keiser Customer Support for replacement parts order, or for any matters regarding the safe operation of your Air250 Abdominal.

Battery Replacement

Do not operate the equipment during battery replacement. "Lo-bA" = Batteries are low, replace immediately. If batteries are dead, the Power Display remains blank.

Figure 10. Battery Replacement

1. Unscrew the Brass Nut on the Processor Box. Pull and remove the cover.
2. Remove the 2 D batteries by carefully pulling out the Battery Sleeve. Follow manufacturer's recommendations for handling, maintaining, and disposing of batteries.
3. Observe the correct polarity position (+/- marking inside the battery compartment), insert the 2 new D batteries into the battery sleeve and install.
4. Replace the Processor Box cover and screw the Brass Nut finger tight.

When batteries are replaced, the Power Display runs a test sequence. Once it stops and shows "OFF," the Air250 Abdominal is ready for use.

CAUTION: Do not dispose of batteries in a fire (may explode). Do not open or mutilate batteries (contain toxic electrolyte). Replace batteries with the same number and type. Recycle batteries in accordance with local procedures.

Annual Maintenance

The following routine maintenance is recommended annually or at the time batteries are replaced:

1. Clean: Wipe any accumulated dust around the Frame and the Linkage System, including the Air Tank and Cylinder, using a clean shop cloth.
2. Visual inspection of the Linkage System: Ensure it moves freely and has no loose parts; all externally visible nuts and bolts are tightened properly.
3. Visual inspection of Air Lines and Communication Wires: Air Lines have no kinks, tears, or breaks; Communication Wires have no exposed wires or visible damage.
4. Replace the Muffler: If discoloration is present. Tool required: 11/16 inch Wrench or Adjustable Wrench.
5. Replace the Air Filter: If element is dirty (element turns a bright pink or red color). Tools required: Small Needle Nose Pliers, Cutter Tool.
6. Lubricate Cylinder Rod: Wipe the Cylinder Rod clean and coat lightly with clean, SAE 30 motor oil, or with a silicon-based spray.
7. Visual inspection of moving components: Check Seat adjustment (Locking Pin) functions and engages properly. Check Exercise Arm is fully functional; all externally visible nuts and bolts are tightened properly.

Figure 11. Annual Routine Maintenance Illustration

WARNING: HIGH-PRESSURE AIR. DISCONNECT THE EQUIPMENT FROM THE AIR SUPPLY AND RELEASE ALL THE AIR IN THE EQUIPMENT ("-- " THUMB BUTTON) BEFORE PERFORMING ROUTINE MAINTENANCE.

Contact Keiser Customer Support for replacement part(s) order, or for any matters regarding the safe operation of your Air250 Abdominal.

Regulatory and Compliance Notices

Standards Marks

ISO/EN 20957-1 Accuracy Class A (High accuracy) and Usage Class S (Studio, commercial use); IEC/EN 60601-1 and IEC/EN 60601-1-2.

Safety Notifications

Displayed watts testing parameters: "Current Power," "Peak Power," and "Percent of Peak Power" are not suitable for use in applications where the health and safety of a patient may be dependent on the accuracy of those parameters. In clinical settings, patients may operate this equipment under supervision but shall not perform preventive maintenance, repairs, or replace batteries.

Type/Degree of Protection

• Degree of protection against electric shock: Device is powered by 2 alkaline D cell batteries. Electrical safety evaluation conducted by TÜV SÜD per IEC/EN 60601-1 requirement.
• Degree of protection against the ingress of liquids: Not protected.
• Safety in the presence of a flammable anesthetic mixture: Not suitable.
• Mode of operation: Continuous.
• Electromagnetic or other interference: The Air250 Abdominal uses electromagnetic and RF energy only for its internal function; emissions are very low and not likely to cause interference. See Electromagnetic Compatibility (EMC) section.
• ID of specified optional external power supplies: The Air250 Abdominal does not require an external power supply or battery chargers.
• Risks associated with disposal: Contains electronic circuit assemblies, batteries that may require compliance with specific local disposal or recycling procedures.
• Environmental conditions of transport and storage: Use indoors in climate-controlled environment only. Keep away from areas of extreme humidity. Not tested at extreme high/low temperatures.

Electromagnetic Compatibility (EMC)

EMC Notices -- Statement of Compliance

This product has been determined to be compliant with applicable standards, regulations, and directives for the countries where it is marketed. Compliance documentation is available upon request by contacting service@keiser.com. Please include product, model number identifiers, serial number, and country.

Korea: "This equipment is for home use and has acquired electromagnetic conformity registration, so it can be used not only in residential areas but also other areas."

US FCC Compliance Statement

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. If this equipment does cause harmful interference to radio or television reception, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

Disposal

This equipment contains electrical or electronic components, batteries that must be disposed of properly to comply with the EU Directive on disposal of waste electrical and electronic equipment (EU WEEE Directive 2002/96/EC). Contact an appropriate waste disposal company upon the equipment's end of service life. Disposal must be in accordance with respective national regulation. Wear parts must be disposed of according to country-specific waste laws. Contact your local dealer or Keiser Customer Support for disposal questions.

Warranty Statement

View or print your Air250 Abdominal warranty online at keiser.com/support/warranty. For questions, contact Keiser Customer Support at 1 559 256 8000, via live chat at keiser.com/support (Monday-Friday, 9 am to 5 pm PST), or by email at service@keiser.com. Customers outside the United States may obtain warranty information directly through a Keiser international distributor or dealer, or direct from Keiser's international division.

European Authorized Representative: KEISER EUROPE SP. Z O.O., ul. Starodworska 1 Gdask 80-137 Polska

UK Responsible Person (UKRP): KEISER UK Ltd., Unit 3, Hampton Industrial Estate Hampton St., Tetbury Gloucestershire, GL8 8LD United Kingdom

Customer Support

If you have any questions regarding the operation of the Air250 Abdominal after reading this manual, contact Keiser Customer Support:

• Phone: 1 559 256 8000
• Email: service@keiser.com
• Website: keiser.com/support
• Live Chat: keiser.com/support (Monday-Friday, 9 am to 5 pm PST)