Sunny Health & Fitness SF-B1421B User manual

5
BELT DRIVE
INDOOR CYCLING BIKE
SF-B1421B
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: [e-mail] 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 achieved 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 nauseous feeling. 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. he maximum weight capacity of this unit is 265 pounds (120 KG).
10. The equipment is not suitable for therapeutic use.
11. To avoid bodily injury and/ or damage to the product or property, proper lifting and moving are
required.
12. Your product is intended for use in cool and 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 DRAWING 1
10
11
12
13
13
12
12
14
15
16
17
18
25
25
26
27
8
8
27
8
27
28
28
29
85L
85R
31
32 33
13
54
87
86
S17
S19
S10
S13
22
23
724
24
7
23
22
19 20
21
20
1
6
2
2
3
3
4
5
8
9
3
7
88
777
9
9
9
3
4
27
8

3
EXPLODED DRAWING 2
34
35
36
39
38
18
39
57 42
43
44
43
45
47
44
43
43
42
50
39
38
37
34
35
36
40
31
51
53
30
56
55
37
58
61
62
63
64
65
66
67
59
68
69
75
74
73
72L
71
70
75
78
77
79
80
81
72R
71
70
84
82
49
60
52
82
84 84
84
84
84
84
84 83
46
48
74
76
52
41
43
43
59
68
67
65
66
84
84
49
60
84
84
48
48
48

4
PARTS LIST
No.
Description
Spec.
Qty
No.
Description
Spec.
Qty
1
Computer
1
36
Nut
M6*H5*S10
2
2
Foam Grip
Φ23*3*480
2
37
Adjusting Screw
M6*50*Φ12*5
2
3
End Cap
Φ25*16
4
38
Spacer
Φ18*Φ12.2*6
2
4
Foam Grip
Φ23*3*190
2
39
Nut
M12*1*H6*S19
3
5
Handlebar
1
40
End Cap
Φ22*16
2
6 Handlebar
Cover
125*80*42 1 41 Washer Φ30*Φ10*6 1
7
Washer
d8*Φ16*1.5
6
42
Bearing
6001-2RS
2
8
Screw
M8*16*S6
8
43
Screw
ST4.8*13*Φ8
6
9
Spring Washer
d8
4
44
Flywheel Cover
2
10
Screw
M5*10*S4
1
45
Round Magnet
Φ10*4 3500±200
1
11
Handlebar Post
1
46
Front Cover
1
12 Bushing F38*38*F30*30*
L120 3 47 Flywheel 13*Φ450 1
13
Adjustment
Knob
M16*1.5*18*Φ5
8
3 48 Screw M10*15*S6 4
14
Seat Post
1
49
Washer
d6*Φ16*1.5
2
15
End Cap
F30*30*16
1
50
Inertia Axle
Φ12*150*M12*1.0
1
16
Seat Slider
1
51
Tension Knob
M10*Φ58*48
1
17
Seat
1
52
Nut
M10*H5.5*S17
2
18 Inductor 1 53 Brake Rod Φ10*200*M10*15*M
6*7*M10*95
1
19
Water Bottle
Holder
1 54 Spanner S10*13*17*19 1
20
Washer
d5*Φ10*1
2
55
Spring
Φ2.0*Φ15*54*N12
1
21
Screw
M5*16*Φ10
2
56
Nut
16*16*25*M10
1
22
Nut
M8*H7.5*S13
2
57
Spacer
Φ18*Φ12.2*10
1
23
Bolt
M8*40*20*S14
2
58
Nut
M6*H6*S10
1
24
Transport
Wheels
Φ40.5*Φ8.5*22 2 59 Washer d6*Φ12*1.2 2
25
End Cap
Φ60
2
60
Screw
M6*12*Φ12
2
26
Front Stabilizer
1
61
Wool Felt
110*30*8
1
27
Arc Washer
d8*Φ20*2*R30
4
62
Brake Board
110*27*30
1
28
End Cap
Φ60*45.5
2
63
Spring
Φ2*Φ24*Φ13*15*N5
1
29
Rear Stabilizer
1
64
Brake Stopper
35*24*2
1
30
Bushing
20*20*62
1
65
Washer
d5*Φ10*1
2
31
Main Frame
1
66
Nut
M5*H5.5*S10
2
32
Allen Wrench
S6
1
67
Screw
M5*30*Φ8
2
33
Spanner
S13-14-15
1
68
Bolt
M6*12*S10
2
34 Nut
M12*1*H19.5*S
19
2 69
Brake Spring
Board
t1.2*23*122 1
35
Nut
M6*H6*S10
2
70
Crank Cap
Φ25*7
2

5
No.
Description
Spec.
Qty.
No.
Description
Spec.
Qty.
71 Nut M10*1.25*H7.5
*S14
2 80 Belt 5PK510 1
72L/
R
Left & Right
Crank
170 2 81
Outer Chain
Cover
1
73
Middle Axle
Cover
Φ50*Φ32*33 1 82 Screw ST4.8*16*Φ10 2
74
C Clip
d17
2
83
Blanking Plate
1
75
Bearing
6203-2RS
2
84
Screw
ST4.2*16*Φ8
13
76 Wave Washer d17*Φ22*0.3 1
85L/
R
Pedal 2
77
Middle Axle
Φ17*176
1
86
Left Nylon Nut
9/16*20*H8*S19
1
78
Belt Wheel
Φ204*20*5PK
1
87
Right Nylon Nut
9/16*20*H8*S19
1
79 Inner Chain
Cover
1
HARDWARE PACKAGE
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 [e-mail] or 1- 877 - 90SUNNY (877-907-8669).

6
ASSEMBLY INSTRUCTIONS
26
8
27
8
27
29
27
8
31
S6
#27 d8*Φ20*2*R30 4PCS
#8 M8*16*S6 4PCS
16
17
13
13
14
#13 M16*1.5*18*Φ58 2PCS
#33
#32
S15
27
8
85L
85R
31
19 20
21
72L
72R
S15
#20 d5*Φ10*1 2pcs
#21 M5*16*Φ10 2pcs
#33
87
86
S19
#54
20
21
#86 9/16*20*H8*S19 1PC
#87 9/16*20*H8*S19 1PC
STEP 1:
Attach the Front and Rear Stabilizers (No. 26 &
No. 29) to the Main Frame (No. 31) using 4 Screws
(No. 8) and 4 Arc Washers (No. 27). Tighten and
secure with Allen Wrench (No. 32).
Secure Seat (No. 17)to the Seat Slider (No. 16),
tighten and secure with Spanner (No. 33).
Loosen and pull out the Adjustment Knob (No.
13). Adjust the Seat Slider (No. 16) and Seat Post
(No. 14) to the desired position and reinsert and
tighten Adjustment Knob (No. 13) to secure the
posts in place.
STEP 2:
WARNING! Read instructions carefully as improper
assembly may cause permanent damage to your
bike. (Before you begin, immobilize the cranks by
turning the tension knob all the way to the right).
Remove 2 Left and Right Nylon Nuts (No. 86 and
No. 87) located on Pedals (No. 85L/R). Attach Left
Pedal (No. 85L) counter-clockwise
into its
corresponding Left Crank (No. 72L). Once screwed
in place, use Spanner (No. 33) to hold the bolt of
the pedal then attach Left
Nylon Nut (No. 86)
clockwise onto the thread end of the Left Pedal
(No. 85L). Secure with Spanner (No. 54).
Attach Right Pedal (No. 85R) clockwise into its
corresponding Right Crank (No. 72R)
. Once
screwed in place, use Spanner (No. 33) to hold the
bolt of the pedal then attach Right Nylon Nut (No.
87) counter-clockwise onto the thread end of the
Right Pedal (No. 85R). Secure with Spanner (No.
54).
Remove pre-assembled 2 Screws (No. 21) and 2
Washers (No. 20) from Main Frame (No. 31) with
Spanner (No. 33). Then attach
Water Bottle
Holder (No. 19) onto Main Frame (No. 31) using 2
Screws (No. 21) and 2 Washers (No. 20) that were
removed. Tighten and secure with Spanner (No.
33).

7
1
6
II III
18
1
11
5
18
1
6
1
6
I
STEP 3:
Loosen and pull out the Adjustment Knob (No.
13). Insert Handlebar Post (No. 11) into the sleeve
located on the front of the Main Frame (No. 31).
Adjust the Handlebar Post (No. 11) to the desired
position, re-insert and tighten the Adjustment
Knob (No. 13) to secure the post in place.
Secure Handlebar (No. 5) to Handlebar Post
(No. 11) using 4 Screws (No. 8),4 Washers (No.
7) and 4 Spring Washers (No. 9). Tighten and
secure with Allen Wrench (No. 32).
STEP 4:
Insert the link wire of the Computer (No. 1) to the
middle hole of the Handlebar Cover (No. 6) as
shown in Figure I.
Attach the Handlebar Cover (No. 6) to the
Handlebar (No.5) as shown in Figure II.
Attach the Computer (No. 1)
to the bracket
located on the Handlebar Post (No. 11),as
shown in Figure III
Connect the link wire of the Computer (No. 1) to
the Inductor (No. 18).
The assembly is now complete!

8
ADJUSTMENTS & USAGE GUIDE
11 13
MOVING THE BIKE
To move the bike, first ensure that the handlebar is properly secured. If the
handlebar is loose, tighten the Adjustment Knob (No. 13) to secure it.
Next, stand at the front of the bike so that you’re directly in front of the
handlebar. Firmly grasp and hold each side of the Handlebar (No. 5), place
one foot on the front stabilizer and tilt the bike towards you until the
transportation wheels on the front stabilizer touch the ground. With the
wheels on the ground, you can transport the bike to the desired location
with ease.
ADJUSTING THE ANGLE OF SEAT
Use Spanner (No. 33) to unscrew the nut under the saddle. Adjust the
saddle to the desired angle and re-install and secure the nut. Check the nut
periodically to ensure that it is tight and secure. Use the Spanner (No. 33)
to tighten when necessary.
Note: In order to properly tighten the seat, it is important to note that you will
need two Spanner (No. 33) (1 for each side) and will need to tighten the nut
on each side simultaneously working in opposite direction of each other.
ADJUSTING THE HEIGHT
Loosen and pull out the [seat height] Adjustment Knob (No. 13) to adjust
the height of the saddle. You may also slide the seat forward or backwards
by loosening and pulling out the [seat] Adjustment Knob (No. 13) on the
Seat Slider (No. 16). You may adjust the height of the handlebar by using
the [handlebar] Adjustment Knob (No. 13). When making adjustments,
you will see a limit on the saddle post, seat slider and handlebar post. Do
NOT lift the posts passed this mark. Always check the Adjustment Knobs
(No. 13) to ensure that they are fully secure when you finish making an
adjustment
ADJUSTING THE TENSION & EMERGENCY STOP
Adjust the tension by rotating the Tension Knob (No. 51) clockwise to
increase the level of resistance. Rotate the knob counter-
clockwise to
decrease the level of resistance. Push down on Tension Knob (No. 51) to
enforce the brake and stop the bike immediately.
ADJUSTING THE BALANCE
In order to achieve a smooth and comfortable ride, you must ensure that the
stability of the bike is secured. If you notice that the bike is unbalanced
during use, you should adjust the end caps located on the rear stabilizer. To
do so, simply rotate the End Cap (No. 28)located on the Rear Stabilizer
(No. 29) until the bike becomes level with the floor surface.

9
EXERCISE COMPUTER
SPECIFICATIONS:
TIME------------------------------------------- 00:00-99:59 MIN:SEC
SPEED---------------------------------------- 0.0-999.9 ML/H
DISTANCE----------------------------------- 0.00-99.99 MI
CALORIES----------------------------------- 0.0-999.9 KCAL
FUNCTION KEY:
MODE: Press MODE repeatedly to select the desired display value (Time, Speed, Distance,
Calories, Scan).
CLEAR: To reset a single value press CLEAR once. To reset all values Press and hold CLEAR for
3 seconds. This function is only available when the bike is stopped and the computer is
not in SCAN mode.
OPERATION PROCEDURES:
1. AUTO ON/OFF: If the belt is put into motion or the MODE button is pressed, the computer will
activate and will remain active unless there is without a signal for approximately 4 minutes. The
monitor power will turn off automatically.
2. LOCK VALUE SETTING: Press the MODE when the indicator arrow is on the chosen value
(Time, Speed, Distance, Calories, Scan) and then release. Once locked, only the selected
function will be displayed.
FUNCTIONS:
TIME: Counts the total time of an exercise from start to finish.
SPEED: Displays the current speed being obtained.
DISTANCE: Counts the total distance of an exercise from start to finish.
CALORIES:Counts the total amount of calories burned during an exercise session from start to
finish.
SCAN: Automatically displays functions in the following order shown: Time, Speed, Distance,
Calories (repeat).
Battery: This monitor uses twoAAbatteries. If the display appears incorrectly or becomes difficult
to read please install new batteries.Always change both batteries at the same time. Do not mix
battery types and do not mix old and new batteries. Dispose of batteries according to your state
and regional guidelines.

10
MAINTENANCE INSTRUCTIONS
This is general information for daily, weekly and monthly maintenance to be performed on your bike.
13
DAILY MAINTENANCE
After each exercise session, wipe down all
the equipment: seat, frame, handlebars. Pay
special attention to the seat post, handlebar
post and
belt/chain guard. Sweat is very
corrosive and may cause problems that
require parts replacement later.
1.
Get on the bike and engage the drive
train.
2. Pay attention to any vibrations felt through
the pedals. If you feel any vibrations, you
may need to tighten the pedals, bottom
bracket, or adjust the drive belt/chain
tension.
3. Use a wrench to tighten the pedals until
they are secure.
MONTHLY MAINTENANCE
1. Check if
all hardware is secure, such as:
water bottle holder, flywheel nuts, belt/chain
guard bolts, brake caliper lock nuts and brake
caliper tension rod nuts.
2. Inspect the brake tension rod for signs of
wear such as missing threads. Clean and
lubricate the brake tension rod.
3. Clean and lubricate the seat post, handlebar
post and seat slider. Remove any build up of
foreign material.
WEEKLY MAINTENANCE
1.
Inspect moving parts and tighten the
hardware.
2. Inspect pull pin frame fittings to make sure
the fittings are snug. Loose frame fittings
may strip out threads over time and cause
extensive damage.
3. Clean and lubricate pop pin assemblies.
Pull on the pin and spray a small amount
of lubricant onto the shaft.
4. Tighten the seat hardware to make sure
the seat is level and centered.
5.
Brush and treat the resistance pads.
Remove any foreign material that may
have collected
on the pads. Spray the
pads with silicone lubricant. This helps to
reduce noise from friction between the
pads and the flywheel.
6. Visually inspect the bottom bracket, toe
clips and toe straps. If any of them are
loose or disconnected, attach and tighten.
LEATHER BRAKE PAD CARE (If Applicable)
1.
Perform this maintenance when the brake
pad is first installed and for the life of the
brake pad. Following these simple guidelines
can increase the life of your brake pads.
2.
Some brake pad assemblies are
pre-lubricat
ed. Squeeze the brake pad. If
lubricant is released, then the pad has been
pre-lubricated.
3. If the brake pad is dry, then coat the brake
pad with 3-n-1 oil. Brush the leather with a
clean, wire bristle brush, and then apply the
oil. The oil should be allowed to soak in to the
pad. Repeat 4-
5 times until the pad is
saturated, but not dripping with oil. When the
pad is saturated, it will no longer absorb oil.
4. Inspect the brake pad weekly and lubricate if
needed. The pad should not have a glazed
appearance. If the pad appears glazed, then
brush it with wire brush and apply lubricant
as needed. If any of the sponge padding is
showing through the leather pad, the brake
pad should be replaced.
Version：2.2