Sunny Health & Fitness SF-B2640 User manual

AIR BIKE TRAINER
SF-B2640
USER MANUAL
IMPORTANT! Please retain owner’s manual for maintenance and adjustment instructions. Your
satisfaction is very important to us, PLEASE DO NOT RETURN UNTIL YOU HAVE
CONTACTED US: [email protected] or 1- 877 - 90SUNNY (877-907-8669).

1
IMPORTANT SAFETY INFORMATION
We thank you for choosing our product. To ensure your safety and health, please use this equipment
correctly. It is important to read this entire manual before assembling and using the equipment. Safe
and effective use can only be assured if the equipment is assembled, maintained, and used properly. It
is your responsibility to ensure that all users of the equipment are informed of all warnings and
precautions.
1. Before starting any exercise program you should consult your physician to determine if you
have any medical or physical conditions that could put your health and safety at risk or prevent
you from using the equipment properly. Your physician’s advice is essential if you are taking
medication that affects your heart rate, blood pressure, or cholesterol level.
2. Be aware of your body’s signals. Incorrect or excessive exercise can damage your health. Stop
exercising if you experience any of the following symptoms: pain, tightness in your chest,
irregular heartbeat, shortness of breath, lightheadedness, dizziness, or feelings of nausea. If
you do experience any of these conditions, you should consult your physician before continuing
with your exercise program.
3. Keep children and pets away from the equipment. The equipment is designed for adult use only.
4. Use the equipment on a solid, flat level surface with a protective cover for your floor or carpet.
To ensure safety, the equipment should have at least 2 feet (60 CM) of free space all around it.
5. Ensure that all nuts and bolts are securely tightened before using the equipment. The safety of
the equipment can only be maintained if it is regularly examined for damage and/or wear and
tear.
6. Always use the equipment as indicated. If you find any defective components while assembling
or checking the equipment, or if you hear any unusual noises coming from the equipment during
exercise, discontinue use of the equipment immediately and do not use until the problem has
been rectified.
7. Wear suitable clothing while using the equipment. Avoid wearing loose clothing that may
become entangled in the equipment.
8. Do not place fingers or objects into the moving parts of the equipment.
9. The maximum weight capacity of this unit is 250 pounds (113KG).
10.The equipment is not suitable for therapeutic use.
11.Move with caution when lifting and moving the equipment. Always use proper lifting technique
and seek assistance if necessary.
12.Your product is intended for use in cool, dry conditions. You should avoid storage in extreme
cold, hot, or damp areas as this may lead to corrosion and other related problems.
13.This equipment is designed for indoor and home use only! It is not intended for commercial use!

2
EXPLODED DIAGRAM
1
5
6
7
10
11
13
15
14
16 17
18
19
20 20
21
22
23
24
25
27
28
28
30
31 32
32
40
41
43
44
45
46
47
48
49
50
51
52
53
55
55
55
55
55
55
55
55
55
56
56
55
55
57
58
68
69
69
68
70
70
71
71
95
72
73
73 74
75
76
96
77
37
38
98
39
42
64
64 79
79 80
80
66
66
81
81 82
82
83
83
84
84
71
69
71
71
85
85
85
86
86
86
87
87
88 89
55
55
55
91 92 93
69
78
78
78
78
72 72
8
8
72
95
54
60
97
99
71
76
99
71
76
62
62
62
62 61
63
63
61 59
59
34
33
3
2
9
26
57
69
57
69
57
69
100 100
4
102
101

3
#91 S51PC
HARDWARE PACKAGE
#100 OD12xID8.5xT2.0 4PCS
#77 OD20xID10.5xT1.5 1PC
#69 OD16xID8.5x1.5 4PCS
#63 OD26xID16.2x2.0 2PCS
#72 OD25xID13x1.5 4PCS
#99 OD20xID8.5xT1.5 4PCS
#95 OD21*ID14*T0.3 4PCS
#61 OD25×ID16.5×0.5 2PCS
#71 M8x7.5xS13 4PCS
#74 1/2-20UNF-R 1PC
#93 S13,S15,S19 2PCS
-2PCS
#75 1/2-20UNF-L 1PC
#76 M8x35xS5 6PCS
#22 1PC
#58 M5x10 4PCS
#96 M8x10xS5 1PC
#92 S6 1PC
#59 1/2-20UNF-R×L77 2PCS
#57 M8x55xS5 4PCS

4
PARTS LIST
No.
Description
Spec.
Qty.
No.
Description
Spec.
Qty.
1
Main Frame
1
33
N/A
-
2
Left Handrail Arm
§25.4*T2.0
1
34
N/A
-
3
Right Handrail Arm
§25.4*T2.0
1
35
N/A
-
4
Lower Handrail Arm
§25.4*T2.0
2
36
N/A
-
5
Upright
□20*40*T1.5
1
37
Fan Leaf
1
6
Seat Post
□23.5*53.5*T1.
5
1
38
Bearing
6000ZZ
1
7
Seat Slider
1
39
Moving Cover
1
8
Connection Piece
2
40
Strap
1
9
Front Stabilizer
40*80*T1.5
1
41
Spring
65Mn
1
10
Rear Stabilizer
40*80*T1.5
1
42
Fan Leaf Axle
45# steel
1
11
Computer
TZ-4106
1
43
Right Gauze
1
12
N/A
-
44
Left Gauze
1
13
Belt
1
45
Bearing Housing
2
14
Left Foot Pedal
1
46
Ball Bearing
2
15
Right Foot Pedal
1
47
Inside Bearing Collar
1
16
Right Foot Pedal Strap
1
48
Outside Bearing Collar
1
17
Left Foot Pedal Strap
1
49
Bearing Washer
§23.8*§40.6*T
3.0
1
18
Belt Pulley with Crank
1/2
1
50
Bearing Snap Washer
1
19
Seat
PU
1
51
Bearing Nut
7/8-24UNS
2
20
End Cap
20*40
2
52
Sensor Wire
1
21
Adjust Plate
1
53
Sensor Holder
1
22
Knob
1
54
Connection Wire
1
23
Bushing
1
55
Self-tapping Screw
ST4.2×16
18
24
Adjustment Knob
1
56
Self-tapping Screw
ST4.2×25
3
25
Tension Control Knob
1
57
Screw
M8×55xS5
4
26
End Cap for Front
Stabilizer R
1
58
Screw
M5×10
4
27
End Cap for Front
Stabilizer L
1
59
Large Screw
1/2-20UNF-R×
L77
2
28
End Cap for Rear Stabilizer
2
60
Lower Brake Cable
1
29
N/A
-
61
Wave Washer
OD25×ID16.5×
0.5
2
30
Right Cover
1
62
Powder Washer for
Handrail
4
31
Left Cover
1
63
Washer
OD26×ID16.2×
2.0
2
32
Cover Cap
￠73
2
64
Screw
M6×50
6

5
No.
Description
Spec.
Qty.
No.
Description
Spec.
Qty.
65
N/A
-
84
M6 Hexagon Nut
2
66
LockNut
M6
6
85
Screw
M5×10
3
67
N/A
-
86
Hexagon Nut
3
68
Screw
M8×45
2
87
Screw
M6×25
4
69
M8 Washer
OD16×ID8.5×
1.5
11
88
Screw
M5×15
1
70
Powder Washer
2
89
Nut
M5
1
71
Nylon Nut
M8x7.5XS13
11
90
N/A
-
72
Washer
OD25×ID13×1
.5
4
91
Allen Wrench
S5
1
73
Powder Washer for Crank
2
92
Allen Wrench
S6
1
74
Right Lock Nut
1/2-20UNF-R
1
93
Spanner
S13, S15, S19
2
75
Left Lock Nut
1/2-20UNF-L
1
94
N/A
-
76
Screw
M8×35xS5
6
95
Wave Washer
OD21*ID14*T
0.3
4
77
Washer
OD20×ID10.5
×T1.5
1
96
Screw
M8×10xS5
1
78
Washer
OD16×ID6.5×
1.0
4
97
Limit Buckle
ABS
1
79
Washer
OD13*ID6.5*1.
0
6
98
Bearing
6800ZZ
2
80
Supporting Tube
OD10*ID6.1*3
3
6
99
Arc Washer
OD20xID8.5xT
1.5
4
81
Eyebolt
M6*L30
2
100
Spring Washer
OD12xID8.5xT
2.0
4
82
C-clip
￠9
2
101
Handrail Arm End Cap
2
83
Tension Bracket
2
102
Handrail Arm Foam Grip
2
Ordering Replacement Parts (U.S. and Canadian Customers only)
Please provide the following information in order for us to accurately identify the part(s) needed:
The model number (found on cover of manual)
The product name (found on cover of manual)
The part number found on the “EXPLODED DIAGRAM” and “PARTS LIST” (found near the front
of the manual)
Please contact us at [email protected] or 1- 877 - 90SUNNY (877-907-8669).

6
STEP 1:
Lift the Upright (No. 5) to the angle shown in
illustration on the left.
Connect wire of Tension Control Knob (No.
25) with Lower Brake Cable (No. 60). Then
connect Sensor Wire (No. 52) with
Connection Wire (No. 54). Make sure the 2
wires are straight and not tangled. Adjust
Tension Control Knob (No. 25) to the
Maximum level to take out Limit Buckle (No.
97). Then turn back to Level 1 for easily starting
moving. Insert the wires into the Main Frame
(No. 1).
Lift the Upright (No. 5) to vertical and attach to
the tube of Main Frame (No. 1) with 2 Screws
(No. 76) and Screw (No. 96). Tighten and
secure with Allen Wrench (No. 91).
ASSEMBLY INSTRUCTIONS
5
76 76
#91 S5 1PC
#76 M8x35xS5 2PCS
1
Remove
the #97
#96 M8x10xS5 1PC
96
25
Metal
Fitting
Cable End
Hook
Bracket
60
25
Adjust to limit
97
5
54
25
60 52
1
STEP:1 STEP:2
97
STEP:3
25
Adjust to limit
54
STEP:4
58
54 #58 M5x10 4PCS
#93 S13,S15,S19 1PC
11
5
STEP 2:
Connect the Connection Wire (No. 54) with the
wire of Computer (No. 11). Put wire into
Upright (No. 5), then slide the Computer (No.
11) onto the plate. Secure with 4 Screws (No.
58) using Spanner (No. 93).

7
#57 M8x55xS5 4PCS
#91 S5 1PC
#69 OD16×ID8.5×1.5 4PCS
57
69
57
69
57
69
9
10
1
#76 M8x35xS5 4PCS
#99 OD20xID8.5xT1.5 4PCS
#71 M8 x7.5xS13 4PCS
#91 S5 1PC
99
71 76
99
71 76
3
100 100
88
#100 OD12xID8.5xT2.0 4PCS
2
2
59 61 63
63
61 59
3
#59 1/2-20UNF-R×L77 2PCS
#61 OD25xID16.5xT0.5 2PCS
#63 OD26xID16.2xT2.0 2PCS
#92 S6 1PC
STEP3:
Position the Front Stabilizer (No. 9) in front of
Main Frame (No. 1) and align the bolt holes.
Position the Rear Stabilizer (No. 10) behind
the Main Frame (No. 1),making sure the UP
label is facing up and align the bolt holes.
Attach the Front Stabilizer (No. 9) and Rear
Stabilizer (No. 10) onto the Main Frame (No.
1) with 4 Screws (No. 57) and 4 M8 Washers
(No. 69). Tighten and screw with Allen Wrench
(No. 91).
STEP 4:
Attach the Left Handrail Arm (No. 2) to the
Lower Handrail Arm (No. 4) and secure using 2
Screws (No. 76), 2Arc Washers (No. 99), 2
Spring Washers (No. 100), and 2 Nylon Nuts
(No. 71). Tighten with Allen Wrench (No. 91) .
Attach the Right Handrail Arm (No. 3) to the
Lower Handrail Arm (No. 4) and secure using 2
Screws (No. 76), 2Arc Washers (No. 99), 2
Spring Washers (No. 100), and 2 Nylon Nuts
(No. 71). Tighten with Allen Wrench (No. 91) .
STEP 5:
Note: Please apply some of the included grease to
the Large Screw (No. 59) before assembly.
Attach the Left &Right Handrail Arms (No. 2 &
No. 3) to the Main Frame (No. 1) using Large
Screw (No. 59) then lock it with Wave Washer
(No. 61) and Washer (No. 63).Tighten the screw in
the direction in left illustration, using the Allen
Wrench (No. 92).

8
14
14 72 8
95
72
75
18
15
72
95
8
72
7418
on the right side
on the left side
#72 OD25xID13xT1.5 4PCS
#74 1/2"-20UNF -R 1PC
#75 1/2"-20UNF -L 1PC
#93 S13,S15,S19 2PCS
#95 OD21*ID14*T0.3 4PCS
72 8
95
72
18
75
STEP 6:
Read this step all the way through before
assembling the pedals.
Note: The Left Foot Pedal (No. 14) and the Left
Lock Nut (No. 75) have reverse threading and
have to be turned counterclockwise to tighten.
Apply some of the included grease to the bolt of
Left &Right Foot Pedals (No. 14 &No. 15)
before assembly. Turn the Belt Pulley with
Crank (No. 18) to the front to make it horizontal.
Insert the Left Foot Pedal (No. 14) through the
Washer (No. 72), the Wave Washer (No. 95),
the Connection Piece (No. 8) and into the
Crank (No. 18). Turn the Left Foot Pedal (No.
14) counterclockwise as tightly as you can with
your hands. Make sure the bolt on the Left Foot
Pedal (No. 14) penetrates the crank fully. Lock
the Left Foot Pedal (No. 14) with the Left Lock
Nut (No. 75). Finish tightening with 2 Spanners
(No. 93).
Insert the Right Foot Pedal (No. 15) through the
Washer (No. 72), the Wave Washer (No. 95),
the Connection Piece (No. 8) and into the
Crank (No.18) as show in the figure.Turn the
Right Foot Pedal (No. 15) clockwise as tightly
as you can with your hands. Make sure the bolt
on the Right Foot Pedal (No. 15) penetrates the
crank fully. Lock the Right Foot Pedal (No. 15)
with the Right Lock Nut (No. 74). Finish
tightening with 2 Spanners (No. 93).

9
71
69 7
19
7
6
77
22
21
7
6
77
22
#77 OD20xID10.5xT1.5 1PC
#22 Knob 1PC #93 S13,S15,S19 1PC
24
6
1
STEP 7:
Remove 3 M8 Washers (No. 69) and 3 Nylon
Nuts (No. 71) from the Seat (No. 19) using the
Spanner (No. 93).
Attach the Seat (No. 19) to the Seat Slider (No. 7)
with 3 M8 Washers (No. 69) and 3 Nylon Nuts
(No. 71) that were removed. Tighten and secure
with Spanner (No. 93).
Attach the Seat Slider (No. 7) to the Seat Post
(No. 6) with Knob (No. 22) and Washer (No. 77).
Insert the Seat Post (No. 6) into the Main Frame
(No. 1) and lock it at desired height with
Adjustment Knob (No. 24).
The assembly is complete!

10
25
MOVING THE BIKE
Put your hands on the Rear Stabilizer
(No. 10) and lift the bike until the wheels
are able to move on the ground.
Now you can move the bike to the
desired location with ease.
ADJUSTMENT GUIDE
10
722
24
6
ADJUSTING THE SEAT
To adjust seat height, turn Adjustment
Knob (No. 24) to loosen.
With one hand, pull out Adjustment
Knob (No. 24). With the other hand,
move the Seat Post (No. 6) to the
desired height.
Insert Adjustment Knob (No. 24) and
turn it clockwise to tighten.
To adjust seat position, turn Knob (No.
22) to loosen.
Move Seat Slider (No. 7) forward or
backward to the desired position.
Turn Knob (No. 22) to tighten.
ADJUSTING THE RESISTANCE
Adjust the resistance of the bike using
the Tension Control Knob (No. 25).
Increase the level of resistance by
turning the Tension Control Knob (No.
25) to the RIGHT (clockwise), decrease
the level of resistance by turning the
Tension Control Knob (No. 25) to the
LEFT (counter-clockwise).

11
EXERCISE METER
Our computerized display console on the Air Bike Trainer allows the user to tailor a personalized
workout by monitoring their progress.
SPECIFICATIONS
KEY FUNCTIONS
MODE: Press to select functions. Press the button and hold for two seconds to reset all
functions to zero, except ODOMETER.
SET: In the STOP mode, press to set target values for TIME, CALORIES, and DISTANCE. Press
the button and hold for two seconds. The value will increase automatically even if you are not
holding the SET button. Press any button to stop.
RESET: In the STOP mode, press the button to reset the setting values to zero.
Press the button and hold for two seconds to reset all functions to zero, except ODOMETER.
FUNCTIONS
SCAN: Press the MODE button until “SCAN” appears on display. Repeatedly displays TIME,
CALORIES, ODOMETER, SPEED, and DISTANCE in sequence for 6 seconds at a time.
TIME: Displays the time elapsed or can count down from preset value.
CALORIES: Displays the calories burned or can count down from preset value.
The calorie readout is an estimate for an average user. It should be used only as comparison
between workouts on this unit.
ODOMETER: Display the total accumulated distance you have traveled. The odometer does not
reset unless you remove the batteries.
SPEED: Displays the current speed.
DISTANCE: Displays distance or can count down from preset value.
The meter turns on when you start pedaling or when you press a key.
The meter turns off automatically after 4 minutes of inactivity.
COUNTDOWN FUNCTION
You can preset values to countdown TIME, CALORIES or DISTANCE. Press MODE until the
function you want is displayed. Make sure meter is not in SCAN. Press SET to increase the value. If
you press SET and hold for a few seconds, the value will increase automatically. Press any key to
stop at a value.
FUNCTIONS
TIME
0:00~99:59 (Minute:Second)
SPEED
0~999.9 Miles per hour
CALORIES
0.0~999.9~9999 Kcal
DISTANCE
0.1~999.9 Mile
BATTERY TYPE
(2)Two AAA or UM-4
OPERATING TEMPERATURE
0°C ~40°C
STORAGE TEMPERATURE
-10°C ~ 60°C

12
MAINTENANCE GUIDE
Cleaning
The bike can be cleaned with a soft cloth and mild detergent. Do not use abrasives or solvents
on plastic parts.
Wipe your perspiration off the bike after each use.
Be sure that the monitor is not exposed to excessive moisture, as this could potentially cause
an electrical hazard and /or electronics to fail.
Keep the bike, especially the monitor, out of direct sunlight to prevent screen damage.
Inspect all assembly bolts and pedals on the machine before use to make sure they are
properly fastened and tightened.
Storage
Store the bike in a clean and dry environment.
Keep children away from the bike.
TROUBLESHOOTING
PROBLEM
SOLUTION
When display shows all 0’s, faded
numbers, incomplete numbers or
blank screen
Remove the computer and check
the wire that comes from the
computer is properly connected to
the wire that comes from the upright.
Check that the batteries are
correctly positioned and are in
proper contact with the battery
springs.
The batteries in the computer may
be dead. Remove and replace with
new batteries.
If you notice any abnormal noises
such as squeaking, clicking or
knocking
Inspect bolts. Tighten as needed.
Inspect moving parts to ensure that
they are properly lubricated.
If the bike feels unstable, wobbly or
off-balance
Inspect all the bolts have been fully
tightened.
Adjust the rear stabilizer end caps to
make it level.
Version 3.2