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15

AIR250 LOWER BACK 

OPERATION MANUAL

The purpose of the Power Test (KEISER 6-Rep Test) is to determine 

your RESISTANCE SETTING FOR MAXIMUM POWER

Use your RESISTANCE SETTING FOR MAXIMUM POWER as a baseline measurement to program safe and effective training 

sessions. The test consists of two sets:

Speed is essential in power output. Perform all repetitions at maximum speed at the given resistance.

How to exit the Power Test: 

Press and hold the Thumb Buttons simultaneously, release when “CLEr” appears in the 

RESISTANCE window (eChip users: Remove the eChip).

Troubleshoot:

 “

Er” 1 – 4 indicates not enough difference in resistance between the low and high sets. Try again with a 

greater difference in resistance between the low and high sets. To restart the Power Test at any time, begin at Step 1 
(eChip users: Remove and reinsert the eChip before attempting to restart the test).

CAUTION: Test should only be performed with proper instruction. Never perform Power Test without proper warm-up.

Three repetitions
High resistance, high speed
80-90% of your maximum

SET

2

Three repetitions
Low resistance, high speed
10% of your maximum

SET

1

START TEST

Press and hold both Thumb 
Buttons, release when 

“6 r”

 

appears in the RESISTANCE 
window.

“P1”

 in the 

TARGET REPS window 

indicates Power Test, Set 1 initiated.

SET RESISTANCE, HIGH LEVEL

Increase the resistance to a high 
level (80-90% of your maximum).

1

4

TARGET

REPS

RESISTANCE

POWER TEST, SET 2 (“P2”)

Perform one repetition at maximum 
speed. 

Pause briefly, then perform 

two repetitions at maximum speed.

SET RESISTANCE, LOW LEVEL

Set the resistance to a low level 
(10% of your maximum).

2

5

TEST RESULT

After your last rep, your 

RESISTANCE SETTING FOR 
MAXIMUM POWER

 value is 

displayed.

TEST COMPLETE

. Exit Power Test 

to resume normal operation.

POWER TEST, SET 1 (“P1”)

Perform one repetition at maximum 
speed. 

Pause briefly, then perform 

two repetitions at maximum speed.

3

6

RESISTANCE SETTING 

FOR MAXIMUM POWER

POWER TEST PROCEDURE 

Before you begin:

 Warm-up and estimate your maximum resistance setting. During testing, you can adjust the resistance 

in either Set before rep “3” if needed (REPS resets to “0”). Note: Test may be performed with or without the eChip inserted.

POWER TEST

Note: Test advances to 

“P2” 

(Power Test, Set 2).

Summary of Contents for 002821BP

Page 1: ...LOWER BACK MODELS 002821BP 002821SP OPERATION MANUAL AIR250 STRENGTH CARDIO FUNCTIONAL...

Page 2: ...CE 19 REGULATORY AND COMPLIANCE NOTICES 19_SAFETY NOTIFICATIONS 20_ELECTROMAGNETIC COMPATIBILITY EMC 20_US FCC COMPLIANCE STATEMENT 20_DISPOSAL 23 WARRANTY STATEMENT Keiser the Keiser logo and other t...

Page 3: ...d of safety notifications and for faster more accurate warranty service Scan the QR Code to the right to access the interactive online warranty registration form or visit https www keiser com forms wa...

Page 4: ...ontrol duringexercise Ifyoufeelpainorareunabletomaintain good form stop immediately Failure to follow these instructions could result in injury 15 Always maintain control of the Exercise Arm during ex...

Page 5: ...f not avoided could result in minor or moderate injury IMPORTANT Indicates information considered critical but not hazard related IMPORTANT SAFETY INFORMATION Maintain and do not remove safety or noti...

Page 6: ...ythmias at rest or aortic aneurysm If the patient is experiencing acute illness febrile condition i e fever or newly occurring pain this represents an absolute contraindication for physical stress In...

Page 7: ...ollowing operating parameters 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 Su...

Page 8: ...MENT TO THE KEISER AIR SYSTEM WARNING Never connect equipment to an air source capable of exceeding 120 psi 8 27 bar Over pressurizing Keiser pneumatic equipment may cause tubing to burst breakage of...

Page 9: ...r Back Upper Back Pad Seat Belt Processor Box Exercise Arm Anti Slip Steps Increase Decrease Thumb Buttons Instruction Placard not shown Power Display Cylinder Air Tank Seat Foot Plate Seat Back Quick...

Page 10: ...r also deletes the current workout data from the eChip System Messages appear in the RESISTANCE window OFF low power consumption sleep mode Sleep mode occurs after 60 seconds of machine inactivity to...

Page 11: ...ettings can only be changed immediately after the eChip is inserted and before your third rep After three reps are performed the setting cannot be changed until the eChip is removed and reinserted Set...

Page 12: ...teries are dead depleted the Power Display remains blank see Battery Replacement procedure page 17 A Thumb Buttons and Display press Thumb Buttons to check for proper operation and the Display powers...

Page 13: ...you are sitting upright Snap the Seat Belt together and tighten the Belt snug across your hips 3 Lean forward as far as is comfortable then carefully adjust the resistance to the desired amount using...

Page 14: ...do so could result in serious injury CONCENTRIC PHASE BACKWARD MOVEMENT Holding the Handlegrips extend backward using your low back for the movement Keep your back in contact with the Upper Back Pad...

Page 15: ...high speed 80 90 of your maximum SET 2 Three repetitions Low resistance high speed 10 of your maximum SET 1 START TEST Press and hold both Thumb Buttons release when 6 r appears in the RESISTANCE win...

Page 16: ...tions NOTE Your Keiser Air Compressor not included with your Air250 Lower Back requires basic annual maintenance Contact Keiser Customer Support for Air Compressor operator manual or download at keise...

Page 17: ...ent insert the 2 new D batteries into the battery sleeve and install The Power Display will enter a brief test sequence youwillseeaseriesofnumbers flashing 4 Replace the Processor Box cover and screw...

Page 18: ...lace 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 S...

Page 19: ...with the disposal of waste products residues including disposal of the equipment itself at the end of its useful life The Air250 Lower Back contains electronic circuit assemblies 2 alkaline D cell ba...

Page 20: ...CTROMAGNETIC COMPATIBILITY EMC DISPOSAL This equipment contains electrical or electronic components alkaline batteries and a sealed lithium coin cell battery that must be disposed of properly to compl...

Page 21: ...21 AIR250 LOWER BACK OPERATION MANUAL This page intentionally left blank...

Page 22: ...22 AIR250 LOWER BACK OPERATION MANUAL This page intentionally left blank...

Page 23: ...day 7 am to 5 30 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 in the count...

Page 24: ...after reading this manual contact Keiser Customer Support 285501_D 1 559 256 8000 service keiser com keiser com support Telephone and Live Chat Monday Friday 7 am to 5 30 pm PST 24 AIR250 LOWER BACK O...

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