Cosco Fitness AC550 User manual

TREADMILL MANUAL
AC550

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Thanks for buying our Fitness equipment,
Do some warm-up exercise before use, you’ll get twice the result with half the effort. Such as follows:
extend the neck up and down
twist the waist left and right
level push forwards upright straighten one's back

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left and right poise exercise up and down extend exercise
thigh extend exercise calf extend exercise
SAFETY GUIDELINES:
Before beginning any exercise program, you should consult with your doctor. It is recommended that you
undergo a complete physical examination. Please follow the instructions:
1. Assemble and operate the treadmill on a solid, level surface
2. Keep the area behind the treadmill clear
3. The treadmill running mat will not stop immediately if any object becomes caught in the mat or rollers-IN
EMERGENCY: Pull the safety key cord to remove safety key
4. Always check the treadmill before using it
5. Make sure all parts are assembled, nuts and bolts are tightened
6. Do not use the treadmill if the unit is disassembled in any way
7. When connecting the power cord, plug the power cord into a grounded circuit. No other appliance
should be on the same circuit. Do not run the power cord underneath your treadmill. Do not operate the
treadmill with a damaged or frayed power cord.

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8. Keep hands away from moving parts
9. Please note that there is a weight limitation for this product. If your weight more than 140kgs. It is not
recommended that you use this product. Serious injury may occur if the user weight exceeds the limit
shown here. This product is not intended to support users whose weight exceeds this limit.
10. This equipment is for home use only. Never allow more than one person on the treadmill at a time.
11. Wear appropriate exercise clothing when using the treadmill. Do not wear loose clothing that could become
caught in the treadmill. Athletic support clothes are recommended for both men and women.Always wear
athletic shoes. Never use the treadmill with bare feet, wearing only stockings, or in sandals. Do not wear
shoes with leather soles or high heels. Tie all long hair back
12. Do not rock the unit from side to side
13. Don’t continuously use this equipment over an hour.
14. Care should be taken when mounting and dismounting the unit
15. Do not place any liquids on any part of the treadmill
16. To prevent shock, keep all electric components, such as the motor cord and switch away from water.
17. Do not use any accessories that are not specifically recommended by the manufacturer, these might cause
injuries or cause the unit to fail
18. Work within your recommended exercise level, do NOT work to exhaustion
19. If you feel any pain or abnormal systems STOP YOUR WORKOUT IMMEDIATELY and consult your
physician immediately
20. Turn off the treadmill while adjusting or working near the rear roller.
21. Keep one side of the magnetic safe key CLIPPING your clothes during exercising to avoid danger
happening.
22. Incorrect or excessive training may lead injures.
23. This equipment is not suitable for therapeutic purposes.
24. Don’t open this equipment cover to avoid damage usually.
25. Ensure the load place is level and free space at least 1m around for safe operation.
26. This equipment is not a toy. Please keep unsupervised children away from the equipment during use and
when equipment is unattended.

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EXPLORE DRAWING
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PART LIST
PART NO PART NAME Q'TY
1 Computer frame 1
2 Left upright 1
3 Right upright 1
4 Base frame 1
5 Incline frame 1
6 Running platform 1
7 Computer main cover 1
8 Computer belly pan 1
9 Handlebar foam 2
10 Handlebar tube plug 2
11 Short cut key board 2
12 Key press of short cut key 3
13 Safety key 1
14 Protective cover of left upright 1
15 Protective cover of right upright 1
16 Rectangular tube plug 2
17 Level frame 2
18 Damper 1
19 Move wheel 2
20 Rubber cushion 2
21 Incline motor 1
22 Left end cap 1
23 Right end cap 1
24 Left idler wheel cover 1
25 Right idler wheel cover 1
26 Support wheel of running platform 2
27 Rubber cushion of running deck 4
28 Power wire cushion 1
29 Power wire 1
30 Fuse 1
31 Side rail 2
32 Rubber cushion of running deck 4
33 Running deck 1
34 Side rail cushion 8
35 Rear roller 1
36 Front roller with fly wheel 1

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37 Running belt 1
38 Motor belt 1
39 Motor 1
40 Cap 1
41 Buffered cushion of motor 2
42 Fixed board of motor 1
43 Motor cover 1
44 Control board of motor 1
45 40*40 Rectangle tube plug 2
46 Magnet ring 1
47 M8*30mm Allen head bolt 4
48 Ø8 Spring washer 10
49 M8*20mm Allen head bolt 4
50 ST4.2*12 Screw 4
51 ST4.2*15 Screw 8
52 M8*85mm Allen head bolt 2
53 M8*50mm Allen head bolt 1
54 ST4.8*15 Screw 6
55 ST4.2*15 Screw 14
56 ST4.2*50 Screw 4
57 M8*20mm Allen head bolt 4
58 M10*20mm Allen head bolt 4
59 Ø10 Washer 4
60 M8*30mm Allen head bolt 1
61 M8 Nylon nut 11
62 M8*20mm Allen head bolt 2
63 Ø8 Washer 11
64 M8*45mm Allen head bolt 1
65 M8*40mm Allen head bolt 4
66 Connect sheath of running platform 2
67 M8*60 Allen head bolt 1
68 M8*25 Nut 2
69 Incline shaft sleeve 2
70 Ø8 Plastic Washer 2
71 ST4.2*20 Screw 2
72 M8*50 Allen head bolt 1
73 M6*65 Nut 8
74 Computer control board 1

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75 Control wire of upright 1
76 Control wire of base frame 1
HARDWARE COMPARISON CHART
For your convenience, we have identified the hardware used in the assembly of this product. The
chart below is provided to help you to identify items that may be unfamiliar to you.
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55 ST4.2*15 Screw 6
57 M8*20mm Allen head bolt 4
58 M10*20mm Allen head bolt 4
59 Ø10 Washer 4
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ASSEMBLING INSTRUCTIONS
WARNING: Please put on all the screws, washers and bolts then tighten them.
ATTENTION: Be careful when you connect the two console-controller wires. There are pins
inside connector, the pins must be straight, and otherwise it will cause problems.
STEP1:
First connect the control wire of
upright 75 and the control wire of
base frame 76. Then fix the
uprights on the base frame with
M10*20mm Allen head bolt 58
and Ø10 Washer 59
STEP2:
Fix computer onto upright with
M8*20mm Allen head bolt 57
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STEP4: Folding illustration:
To unfold the treadmill:
Folding illustration:
To drop down treadmill:
1. Strike the damper. (as shown
by the arrow on left side).
2. Hold on tothe top end covers
and pull down the treadmill
slowly on the ground.
STEP3:
Fix the protective cover of uprights
on the uprights with ST4.2*15
Screw 55.

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COMPUTER OPERATION
Panel layout
The Operation
The required main power is 220~240VAC.
To fold up the treadmill:
To fold up treadmill:
Both hands hold on the bottom end
covers (arrows show in the left and right
side) and lift up the treadmill.

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◆KEY PRESS & FUNCTION
¾START: Press this key once, the treadmill start to run.
¾STOP: during running, press STOP key to stop treadmill
¾MODE: press this key to select time countdown, distance countdown, calorie countdown, calories
countdown, fixed program P1、P2、P3、P4、P5、P6、P7、P8、P9、P10、P11、P12 and U-1,U-2, U-3,
U-4
¾ENTER: confirm key in USER
¾SPEED+: press this key to adjust speed value and increase the selected item (speed, time, distance,
calories) value
¾SPEED-: press this key to adjust speed value and decrease the selected item (speed, time, distance,
calories) value
¾Speed short cut key: to select speed value quickly (5,10,16)
¾INCLICE+: press this key to adjust the incline value.
¾INCLINE-: Press this key to adjust the incline value.
¾Short cut key of incline: 5,10,15
◆ PROGRAM MODE
¾TIME COUNTDOWN MODE
· Press MODE key to select time countdown mode, time window flash and display “30:00”, range is
5-99 minutes. Press SPEED+/- key to select time value
· Press START key to start treadmill. Treadmill will run at the lowest speed, press speed key to select
speed value, time window display countdown time value, when time window display “0:00”, treadmill
will stop to run.
¾DISTANCE COUNTDOWN MODE
· Press MODE key to select distance countdown mode, distance window flash and display “5.0”,
range is 0.5-99 km. Press SPEED+/- key to select distance value
· Press START key to start treadmill. Treadmill will run at the lowest speed, press speed key to select
speed value, distance window display countdown distance value, when distance window display
“0:00”, treadmill will stop to run.
¾CALORIE COUNTDOWN MODE
· Press MODE key to select calories countdown mode, calories window flash and display “100”,
range is 20-990 calories. Press SPEED+/- key to select calories value
· Press START key to start treadmill. Treadmill will run at the lowest speed, press speed key to select
speed value, calories window display countdown calories value, when time window display “0:00”,
treadmill will stop to run.
AUDIO ON/OFF Use AUDIO ON/OFF key to control the output power of music player,
Insert USB to play songs in MP3
¾Press PLAY key to play and pause songs
¾Press “TRACK-/VOLUME-” or “TRACK+/VOLUME+” to select the previous song or the next one
¾Press “TRACK-/VOLUME-” or “TRACK+/VOLUME+” for a long time to decrease or increase
volume

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¾FIX PROGRAM MODE
· Press MODE key to select fixed program, time window flash and display “30:00”, range is 5-99
minutes, press speed+/- key to select time value
· Press START key to start treadmill, treadmill will run at the speed set in fixed program, time window
display countdown value, when time window display “0:00”, treadmill will stop to run.
· During running, press SPEED key to change the current program value
· Program table
P1 speed 1.0 2.0 2.0 2.5 3.0 4.0 4.0 5.0 4.0 2.0
incline 0 0 0 0 0 0 0 0 0 0
P2 speed 1.0 1.0 2.5 2.0 3.0 5.0 4.0 5.0 4.0 2.0
incline 1 1 2 4 3 5 2 2 2 0
P3 speed 1.0 1.0 2.0 3.0 5.0 6.0 4.0 4.0 3.0 2.0
incline 1 2 4 5 6 5 4 4 2 1
P4 speed 1.0 1.0 2.0 2.0 4.0 4.0 6.0 3.0 4.0 2.0
incline 0 2 4 3 6 5 2 4 2 0
P5 speed 1.0 2.0 4.0 6.0 8.0 5.0 4.0 4.0 3.0 2.0
incline 1 2 4 3 3 5 4 6 2 0
P6 speed 1.0 3.0 5.0 7.0 9.0 6.0 5.0 4.0 4.0 1.0
incline 1 1 4 5 3 5 4 3 2 1
P7 speed 2.0 4.0 5.0 7.0 7.0 7.0 6.0 5.0 4.0 1.0
incline 0 0 2 3 2 5 4 5 2 0
P8 speed 2.0 4.0 6.0 8.0 10.0 10.0 8.0 6.0 4.0 2.0
incline 0 2 2 5 5 7 4 4 3 0
P9 speed 2.0 3.0 4.0 6.0 8.0 7.0 5.0 4.0 4.0 2.0
incline 1 3 5 3 5 5 4 4 1 0
P10 speed 2.0 1.0 5.0 5.0 7.0 7.0 8.0 5.0 4.0 1.0
incline 2 3 2 5 5 5 4 2 2 0
P11 speed 1.0 3.0 4.0 7.0 3.0 7.0 4.0 6.0 4.0 1.0
incline 1 2 2 4 4 5 4 4 2 0
P12 speed 1.0 3.0 5.0 6.0 5.0 7.0 8.0 5.0 3.0 1.0
incline 1 2 3 3 3 5 4 4 4 0
¾USER
· Press MODE key to select USER program, time window flash and display “30:00”, range is 5-99
minutes, press speed+/- key to select time value
· Press ENTER key to confirm and into speed and incline setting. Speed and incline window flash and
display. Press speed+/- key and incline+/-key to set the speed and incline value in first segment.
Press ENTER key to confirm and into the next segment setting. The same way as the setting in first

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segment
· After setting, press START key to start to run. Treadmill will run at the speed set in user program,
time window display countdown time value, when time window display “0:00”, the treadmill will stop
to run.
◆ HEARTBEAT TEST
¾Hands hold handlebar pulse, pulse window display the corresponding pulse value
· Before exercise, feet stand on the side rail, hands hold pulse sensor lightly, pulse window display
pulse value in 10seconds later
· After exercise, feet stand on the side rail, hands hold pulse sensor lightly, pulse window display
pulse value in 10seconds later
NOTE: in order to get accurate data, please do not test during exercise
◆ Error Message
ERROR CODE
1: ER1: Display board didn’t receive signal in 30seconds
2: ER3: over voltage
3: ER4: over current
4: ER5: over load
5: ER6: motor not connect
6: ER7: control board didn’t receive signal
7: SAFE: safety protection
MAINTENANCE
Proper maintenance is very important to ensure your treadmill is always in top working condition.
Improper maintenance could cause damage or shorten the life of your treadmill and exceed the
LIMITED WARRANTY coverage.
1. Important: Never use abrasives or solvents to clean the treadmill. To prevent damage to the
computer, keep liquids away and keep it out of direct sunlight.
2. Inspect and tighten all parts of the treadmill regularly. Replace any worn parts immediately
CLEANING:
Routine cleaning of your treadmill will extend the product’s life.
1. Warning: To prevent electrical shock, be sure the power to the treadmill is OFF and the power cord is
unplugged from the wall electrical outlet before attempting any cleaning or maintenance.
2. Important: Never use abrasives or solvents to clean the treadmill. To prevent damage to the computer, keep
liquids away and keep it out of direct sunlight.
3. After each workout: Wipe off the console and other treadmill surfaces with a clean, water dampened
soft cloth to remove excess perspiration
4. Weekly: Use of a treadmill mat is recommended for ease of cleaning. Dirt from your shoes contacts the belt
and eventually makes it to underneath the treadmill. Vacuum the underneath treadmill once a
week.

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BELT ADJUSTMENT:
Belt adjustment and tension performs two functions: adjustment for tension and centering. The running
belt has been adjusted properly at the factory. However transportation, uneven flooring or other
unpredicted reasons could cause the belt to shift off center resulting in the belt rubbing with the plastic side
rail or end caps and possibly causing damage. To adjust the belt back to it proper position please follows
the directions below:
1. Walking belt has shifted to the left:
First unplug the power cord from the surge protector. Using the hex key provided, turn the left rear
roller adjustment bolt 1/4 turn in the clockwise direction. Plug the power cord back into the surge
protector and run the treadmill at 2.5 mph. You should see the belt start to correct itself, moving back
towards the center. Repeat the above procedure until the walking belt is centered. It may be necessary
to set walking belt tension once you have completed this procedure if the belt feels like it is slipping
while walking. Refer below to the “Walking belt slipping” instructions.
2. Walking belt has shifted to the right:
First unplug the power cord from the surge protector. Using the hex key provided, turn the right rear
roller adjustment bolt 1/4 turn in the clockwise direction. Plug the power cord back into the surge
protector and run the treadmill at 2.5 mph. You should see the belt start to correct itself, moving back
towards the center. Repeat the above procedure until the walking belt is centered. It may be necessary
to set walking belt tension once you have completed this procedure if the belt feels like it is slipping
while walking. Refer below to the “Walking belt slipping” instructions.
3. Walking belt is slipping:
First unplug the power cord from the surge protector. Using the hex key provided, turn both the left and
right rear roller adjustment bolts the same distance, usually a 1/4 turn in the clockwise direction. Plug
the power cord back into the surge protector and run the treadmill at 2.5 mph. You should now walk on
the belt to determine if the belt is still slipping. Repeat the above procedure until the walking belt is not
slipping. The tension should be just tight enough not to slip.
WARNING! Do not over tighten rollers! This will cause premature roller bearing failure!
Right and leftAllen bolts are located at the rear of the treadmill.
DECK LUBRICATION:
The walking belt has been pre-lubricated at the factory. However, it is recommended that the walking board be
checked periodically for lubrication to ensure optimal treadmill performance.

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Every 3 months of operation lift the sides of the walking belt and feel the top surface of the walking board as far
as you can reach. If you feel signs of silicone, no further lubrication is required. If it feels dry to the touch, follow
the instructions below.
Please use Lube ‘N Walk, or a non petroleum based silicone such as “Napa 8300” (available at most stores).
TO APPLY LUBRICANT TO THE WALKING BELT
1 Position the walking belt so that the seam is located on top and in center of the walking board.
2 Insert the spray nozzle into the spray head of the lubricant can.
3 While lifting the side of the walking belt, position the spray nozzle between the walking belt and the board
approxinateluy6” from the front of the treadmill. Apply the silicone spray to the walking board, moving from
the front of the treadmill to the rear. Repeat this on the other side of the belt. Spray approximately 4
seconds on each side.
4 Allow the silicone to “set” for 1 minute before using the treadmill.
REMARK: When the treadmill is over load by any case, for the using safety
the fuse will be broken and the power will be cut off . Change a
new fuse and start again.