Sunny Health & Fitness SF-RB4905 User manual

MAGNETIC RECUMBENT
EXERCISE BIKE
SF-RB4905
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).

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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 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 240 pounds (110 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.

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EXPLODED DIAGRAM

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PARTS LIST
No.
Description
Spec.
Qty.
No.
Description
Spec.
Qty.
1
Main Frame
1
48
Bolt
Φ9.8*6*M8*15
1
2
Front Post
1
49
Brake Handle
1
3
Front Stabilizer
1
50
Eccentric Shaft
1
4
Cushion Frame
1
51
Eccentric Wheel
1
5
Handlebar
1
52
Alloy Bushing
2
6
Adjusting Tube
1
53
Lock Washer
2
7
Magnetic Board
1
54
Idler Spacer
1
8
Idler Link
1
55
Pulley
1
9
Rear Stabilizer
1
56
Foam Grip
2
10
Hex Tap Bolt
M6*70
1
57L/R
Foam Grip
2
11
Hex Nut
M6
2
58
Rear End Cap
2
12
Hex Tap Bolt
M8*40
1
59
Screw
ST3*10
9
13
Nylon Nut
M8 S13
4
60L/R
Pedal
(1/2")
2
14
Hex Nut
M10*1*H5
2
61
Round End Cap
4
15
Taper Nut
M10*1*H4
2
62
Belt
370PJ6
1
16
Nylon Nut
M10
1
63
Seat
1
17
Screw
ST4.2*20
7
64
Backrest Cushion
1
18
Screw
ST4.2*20
5
65
Sleeve
2
19
Carriage Bolt
M8*60
4
66
Cap
60*30*1.5
2
20
Magnetic Fix Board
1
67
Cap
38*38*1.5
2
21
Bolt
M8*15
4
68
Plug
3
22
Bolt
M8*45
4
69L/R
Cover
2
23
Flat Washer
Φ16*Φ8.5*1.5
14
70
Crank Plug
2
24
Spring Washer
D8
4
71
Idler Wheel
1
25
Bolt
M8*42
2
72
Tension Control Knob
1
26
Arc Washer
Φ16*Φ8.5*1.5
6
73
Tension Wire
1
27
Cap Nut
M8
6
74
Idler Wheel
2
28
Bolt
M8*16
4
75
Brake Block
1
29
Bolt
M8*50
2
76
EVA Pad
1
30
Screw
M5*8
4
77
Computer
1
31
Screw
M8*40
2
78
Middle Wire
1
32
Screw
M5*15
2
79
Needle Sensor Wire
1
33
Bolt
M6*15
2
80
Hand Pulse Sensor
2
34
Lock Washer for Shaft
D12
1
80a
Hand Pulse Wire 1
1
35
Bolt
M5*20
1
81
Hand Pulse Wire 2
1
36
Washer
D5
1
82
Hand Pulse Wire 3
1
37
Bolt
M5*10
4
83
Brake Handle
1
38
Bearing Housing
Φ56*15.5
2
84
Open Face Bearing
2
39L/R
Crank
140*220，1/2
1
85
Nut
1
40
Flywheels Spacer
1
86
Washer
1
41
Tension Spring
1
87
Nut
2
42
Black Magnet
40x25x10
8
88
Locking Nut 2
1
43
Round Magnet
Φ15×6
1
89
Washer
Φ40.5*3
1
44
Inertia Wheel
Φ10*125*M10*1*17
1
90
Front End Cap
2
45
External Magnetic
Flywheels
Φ200*72.5/3Kg
1
91
Flat Washer
Φ16*Φ8.5*1.5
3
46
Bearing
6000Z
2
A
Spanner
S13-14-15
1
47
Tension Spring
Φ18*48*Φ2
1
B
Wrench
S5*30*80
1

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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).

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ASSEMBLY INSTRUCTIONS
We value your experience using Sunny Health and Fitness products. For assistance with parts or
troubleshooting, please contact us at [e-mail] or 1-877-90SUNNY
(877-907-8669).
STEP 1：
Attach the Front Stabilizer (No. 3)
and Rear Stabilizer (No. 9) to the
Main Frame (No. 1) using 4 Carriage
Bolts (No. 19), 4Arc Washers (No.
26) and 4 Cap Nuts (No. 27). Tighten
and secure with Spanner (No. A).
STEP 2：
Attach the Seat (No. 63) to the Cushion
Frame (No. 4) using 4 Bolts (No. 28)
and 4 Flat Washers (No. 23). Tighten
and secure with Wrench (No. B).
Attach the Backrest Cushion (No. 64)
to the Cushion Frame (No. 4) using 2
Bolts (No. 29) and 2 Flat Washers (No.
23). Tighten with Wrench (No. B).

6
We value your experience using Sunny Health and Fitness products. For assistance with parts or
troubleshooting, please contact us at [e-mail] or 1-877-90SUNNY
(877-907-8669).
STEP 3：
Insert the Brake Handle (No. 49) into
Eccentric Shaft (No. 50) and make
sure the screw holes from both parts
are aligned with each other. Secure
with 2 Bolts (No. 33) and tighten with
Wrench (No. B).
STEP 4：
Attach the Handlebar (No. 5) to the
Cushion Frame (No. 4) with 2 Bolts
(No. 25), 2 Flat Washers (No. 23),and
2Cap Nuts (No. 27). Tighten and
secure with Spanner (No. A).
STEP 5：
Attach the Cushion Frame (No. 4) to
the Main Frame (No. 1) using 4 Bolts
(No. 22), 4 Spring Washers (No. 24),
4Flat Washers (No. 23). Tighten with
Wrench (No. B).
Connect the Hand Pulse Wire 1 (No.
80a) with the Hand Pulse Wire 3 (No.
82).

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We value your experience using Sunny Health and Fitness products. For assistance with parts or
troubleshooting, please contact us at [email protected] or 1-877-90SUNNY
(877-907-8669).
STEP 6：
Connect Middle Wire (No. 78) with
Needle Sensor Wire (No. 79) and
connect the Hand Pulse Wire 2 (No.
81) with Hand Pulse Wire 3 (No. 82).
Pull Tension Control Wire (No. 73)
out from Main Frame (No. 1), then
insert Tension Control Wire (No. 73)
from the bottom of Front Post (No. 2)
and pull it out from the side hole of
Front Post (No. 2).
Attach the Front Post (No. 2) to the
Main Frame (No. 1), then remove Bolt
(No. 35) and Washer (No.36) from
Tension Control Knob (No. 72).
Connect Tension Control Knob (No.
72) with Tension Wire (No. 73) and
attach Tension Control Knob (No. 72)
on Front Post (No. 2) using Bolt (No.
35) and Washer (No.36) that were
removed.
CAUTION: Please make sure the
Tension Control Knob (No. 72) is at
the lowest resistance level (level 1, all
the way to the left) before you connect
any wires together.
Secure Front Post (No. 2) and Main
Frame (No. 1) using 4 Bolts (No. 21),
2Flat Washers (No. 23) and 2 Arc
Washers (No. 26). Tighten and secure
with Wrench (No. B).

8
We value your experience using Sunny Health and Fitness products. For assistance with parts or
troubleshooting, please contact us at [e-mail] or 1-877-90SUNNY
(877-907-8669).
STEP 7：
Remove 4Bolts (No. 37) from the
Computer (No. 77) using Spanner
(No. A). Then, attach the Computer
(No. 77) to the Front Post (No. 2)
using the 4Bolts (No. 37) that were
removed. Tighten and secure with
Spanner (No. A).
On the back of Computer (No. 77),
plug Hand Pulse Wire 2 (No. 81) into
the “PULSE”jack and Middle Wire
(No. 78) into the “SPEED”jack.
STEP 8：
Align the Left Pedal (No. 60L) with
the Left Crank (No. 39L) at 90
degrees and gently insert the pedal
into the crank arm. Turn the pedal
counter-clockwise as tightly as you
can with your hand, then use
Spanner (No. A) to tighten securely.
Align the Right Pedal (No. 60R)with
the Right Crank (No. 39R) at 90
degrees and gently insert the pedal
into the crank arm. Turn the pedal
clockwise as tightly as you can with
your hand, then use Spanner (No. A)
to tighten securely.
NOTE: Left Pedal (No. 60L) is
marked with “L” on the pedal, while
Right Pedal (No. 60R)is marked with
“R” on the pedal.
The assembly is complete!

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BATTERY INSTALLATION & REPLACEMENT
BATTERY INSTALLATION
1. Take out 2 AAA batteries from meter box.
2. Press the buckle of battery cover on the Computer (No. 77), then remove battery cover.
3. Install 2 AAAbatteries into the battery case on the back of the Computer (No. 77). Pay attention
to the battery + and –ends before installing.
4. Press the buckle of battery cover, then put the battery cover back to the back of the Computer
(No.77).
The installation is complete!
BATTERY REPLACEMENT
1. Press the buckle of battery cover on the back of the Computer (No. 77), then remove battery
cover.
2. Remove the 2 old AAA batteries in the battery case and install 2 new AAA batteries into the
battery case on the back of the Computer (No. 77). Pay attention to the battery + and –ends
before installing.
3. Press the buckle of battery cover, then put the battery cover back to the back of the Computer
(No. 77).
The replacement is complete!
BATTERY DISPOSAL
Dispose of the batteries according to the laws and regulations of your local region. Some batteries
may be recycled. When disposing or recycling, do not mix battery types.

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ADJUSTMENTS & USAGE GUIDE
ADJUSTING THE BALANCE
In order to achieve a smooth and comfortable
ride, you must ensure that the bike is stable. If
you notice that the bike is unbalanced during
use, you should adjust the end caps located
underneath the Rear Stabilizer (No. 9) by
turning it clockwise.
HOW TO MOVE THE BIKE
Hold the Rear Stabilizer (No. 9) and lift the bike
until the wheels on the Front Stabilizer (No. 3)
touch the ground. Now you can move the bike to
the desired location.
ADJUSTING THE RESISTANCE
Adjust the resistance of the bike using the
Tension Control Knob (No. 72). Increase the
level of resistance by turning the Tension
Control Knob (No. 72)UP (clockwise),
decrease the level of resistance by turning the
Tension Control Knob (No. 72)DOWN
(counter-clockwise).
ADJUSTING THE SEAT
Pull the Brake Handle (No. 49) up to loosen the
Cushion Frame (No. 4) (see Fig 1). Keep your
feet on the floor as leverage, then move the
Cushion Frame (No. 4) to the desired position.
Push the Brake Handle (No. 49) down to lock
the seat in place (see Fig 2).
Fig. 1
Fig. 2
72

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EXERCISE METER
FUNCTION BUTTONS
MODE: Press to display different function selections on LCD.
Press and hold for 3 seconds to reset all values except odometer to
zero.
SET: To set up the target value for TIME, DISTANCE, and CAL. Press
and hold for 2 seconds to speed up the increment.
RESET: Press to reset function value during setting.
Press and hold for 3 seconds to reset all value except odometer to
zero.
NOTE: Replacing the batteries will reset all values to zero
automatically.
FUNCTIONS & OPERATIONS
1. AUTO ON/OFF:
Once you begin to exercise, workout value will display on the LCD automatically. After
approximately 4 minutes of inactivity, the computer will turn off.
The value on odometer does not reset to 0 every time the computer turns off and will continue to
accumulate when you resume to exercise.
2. AUTO SCAN:
After the computer is powered on, press Mode and the LCD will display all functions
TIME-SPEED-DISTANCE-CALORIES-ODOMETER-PULSE. Each value will be shown for 6
seconds.
3. SPEED:
Displays the current training speed from 0.0 to 99.9 MPH (miles per hour)
4. DISTANCE:
Accumulates total distance from 0.00 up to 999. Press SET & MODE button to set your target
distance and it will automatically count down from target value once you start exercise. Each
increment is 0.1 M (miles). When distance is over 100 miles, each increment will be 1M (miles).
5. TIME:
Accumulates total time from 00:00 up to 99:59. Press SET & MODE button to set your target
time with increment of 1 minutes and it will automatically count down from target value once you
start exercise.

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6. CALORIES:
Accumulates calories burned during training from 0.0 to 9999 calories. Press SET & MODE
button to set your target calorie and it will automatically count down from target value once you
start exercise. Each increment is 1 Cal, until it reaches 1000 Cal. When calorie is over 1000,
each increment will be 10 Cal.
NOTE: This data was designed to be the guide for exercise use only and should not be
used for medical purpose.
7. ODOMETER:
Displays the total accumulated distance from 0 to 9999. User can press MODE key to display the
odometer value.
8. PULSE:
The computer will display user’s heart rate in BPM (beats per minute) during training.
9. RESET:
Press and hold for 2 seconds to reset all value except odometer to zero.
NOTE:
1. If the computer displays abnormally, please re-install the battery and try again.
2. Battery Spec: 1.5V UM-4 or AAA (2PCS).
3. The batteries must be removed from the appliance before it is scrapped and that they are
disposed of safely.

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TROUBLESHOOTING
PROBLEM
SOLUTION
There is no display on the computer.
1. Remove the computer and verify that the
wire from the computer is properly
connected to the wire that comes from the
front post.
2. Check if the batteries are correctly positioned
and battery springs are in proper contact with
batteries.
3. The batteries in the computer may be
unresponsive. Change to new batteries.
The recumbent bike wobbles when in use
Turn the end cap on the rear stabilizer as needed
to level the recumbent bike.
The recumbent bike makes squeaking noise
when in use.
The bolts may have become loose on the
recumbent bike. Please inspect all the bolts and
tighten any loosened bolts.
Version 1.1

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