Sunny Health & Fitness SF-RB4850 User manual

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SMART PROGRAMMABLE
RECUMBENT BIKE
SF-RB4850 SMART
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 4 feet (120 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 300 lbs (135 kgs).
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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PRE-ASSEMBLY CHECK LIST
Before you start to assemble, please make sure all parts are included.
No.
Description
Spec.
Qty.
No.
Description
Spec.
Qty.
1
Main Frame
1
24
Upright Tube Cover
1
2
Handlebar Post
1
28
Backrest Cover
1
3
Seat Tube
1
37L
Left Pedal
1
4
Handlebar
1
37R
Right Pedal
1
5
Front Stabilizer
1
38
Seat
KX4850
1
6
Rear Stabilizer
1
39
Backrest
QT-188D
1
7
Armrest
1
100
Meter
TZ-4113P
1
8
Adjustment Handle
1
54
Bottle Holder
1
13
Rail
1
55
Adaptor
1
15
Adjustable Pad
1
A
Manual
1
16
Hex Nut
M10
1
B
Thank You Card
1
17
Rail Cover
2
C
Hardware Package
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” (page 19-20) and “PARTS LIST” (pages
17-18)
Please contact us at [email protected] 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 suppo[email protected] or 1-877-90SUNNY
(877-907-8669).
STEP 1:
Remove 2 Shipping Tubes (No. D),8
Screws (No. 20), 8 Spring Washers (No.
12) and 8 Flat Washers (No. 11) from the
Main Frame (No. 1) using Allen Wrench
(No. 97).
NOTE: You may discard the Shipping
Tubes (No. D) or save them to repackage
the item in the future.
Attach the Front Stabilizer (No. 5) and Rear
Stabilizer (No. 6) to the Main Frame (No. 1)
with 8 Screws (No. 20), 8 Spring Washers
(No. 12) and 8 Flat Washers (No. 11) that
were just removed. Tighten and secure with
the Allen Wrench (No. 97).
Attach the Adjustable Pad (No. 15) to the
Main Frame (No. 1).
STEP 2:
Align the Left Pedal (No. 37L) with the Left
Crank (No. 23L) at 90°and gently insert the
pedal into the crank arm. Turn the Left
Pedal (No. 37L) counter-clockwise as tightly
as you can with your hands, then use
Spanner (No. 105) to tighten securely.
Align the Right Pedal (No. 37R) with the
Right Crank (No. 23R) at 90°and gently
insert the pedal into the crank arm. Turn the
Right Pedal (No. 37R) clockwise as tightly
as you can with your hands, then use
Spanner (No. 105) to tighten securely.
NOTE: Left Pedal (No. 37L) is marked with
“L”on the pedal, while Right Pedal (No.
37R) is marked with “R”on the pedal.
Attaching the Left & Right Pedals (No. 37L
& No. 37R) to the Left & Right Cranks (No.
23L & No. 23R) or turning them with the
wrong direction will damage the Left & Right
Cranks (No. 23L & No. 23R).

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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 3:
Remove 4 Screws (No. 20), 4 Spring
Washers (No. 12) and 4 Arc Washers (No.
22) from the Main Frame (No. 1) using Allen
Wrench (No. 97).
Insert the Handlebar Post (No. 2) into the
Upright Tube Cover (No. 24) and move the
Upright Tube Cover (No. 24) higher.
Connect the Sensor Extension Wire 1 (No.
102) with Sensor Extension Wire 2 (No.
101), and connect Extension Wire 2 (No.
56) with Extension Wire 1 (No. 44).
Attach the Handlebar Post (No. 2) to the
Main Frame (No. 1) with 4 Screws (No. 20),
4 Spring Washers (No. 12) and 4 Arc
Washers (No. 22) that were just removed.
Tighten and secure with the Allen Wrench
(No. 97).
Move the Upright Tube Cover (No. 24)
lower so it snaps into the Main Frame (No.
1).
STEP 4:
Remove 2 Screws (No. 20), 2Spring
Washers (No. 12) and 2 Arc Washers (No.
22) from the Handlebar Post (No. 2) using
Allen Wrench (No. 97). Then attach the
Armrest (No. 7) to the Handlebar Post (No.
2) with 2 Screws (No. 20), 2Spring
Washers (No. 12) and 2Arc Washers (No.
22) that were just removed. Tighten and
secure with the Allen Wrench (No. 97).
Remove 2 Screws (No. 19) and 2 Flat
Washers (No. 53) from the Handlebar Post
(No. 2) using Spanner (No. 95). Then attach
the Bottle Holder (No. 54) to the Handlebar
Post (No. 2) with 2 Screws (No. 19) and 2
Flat Washers (No. 53) that were just
removed. Tighten and secure with the
Spanner (No. 95).

6
We value your experience using Sunny Health and Fitness products. For assistance with parts or
troubleshooting, please contact us at suppo[email protected] or 1-877-90SUNNY
(877-907-8669).
STEP 5:
Remove 4 Screws (No. 10), 4 Spring
Washers (No. 12) and 4 Flat Washers (No.
11) from the Rail (No. 13) with Allen
Wrench (No. 97). Then attach the Rail (No.
13) to the Main Frame (No. 1) with 4
Screws (No.10), 4 Spring Washers (No.
12) and 4 Flat Washers (No. 11) that were
just removed using Allen Wrench (No. 97).
Remove the 2 Screws (No. 51) from the
Adjustment Handle (No. 8) using Allen
Wrench (No. 96). Then attach the
Adjustment Handle (No. 8) to the Axle (No.
52) with 2 Screws (No. 51) that were just
removed using Allen Wrench (No. 96).
Remove 2Carriage Bolts (No. 9), 2 Flat
Washers (No. 11) and 2 Cap Nuts (No. 14)
from the Handlebar (No. 4) using Spanner
(No. 95). Then attach the Handlebar (No. 4)
to the Seat Tube (No. 3) with 2 Carriage
Bolts (No. 9), 2Flat Washers (No. 11) and
2Cap Nuts (No. 14) that were just removed
using Spanner (No. 95).
Connect the Pulse Wire (No. 43) with the
Extension Wire 1 (No. 44).

7
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:
Remove 2 Screws (No. 19) from the Main
Frame (No. 1) using Spanner (No. 95).
Then attach 2 Rail Covers (No. 17) to the
Main Frame (No. 1) with 2 Screws (No. 19)
that were just removed using Spanner (No.
95).
Attach the Seat (No. 38) to the Seat Tube
(No. 3) with 4 Screws (No. 20) and 4Flat
Washers (No. 11) using Allen Wrench (No.
97).
Attach the Backrest (No. 39) to the Seat
Tube (No. 3) with 4 Bolts (No. 41) and 4
Flat Washers (No. 42). Tighten and secure
with Allen Wrench (No. 96).
Remove the Screw (No. 40) from the Seat
Tube (No. 3) using the Spanner (No. 95).
Attach the Backrest Cover (No. 28) to the
Seat Tube (No. 3) with the Screw (No. 40)
that was just removed. Tighten and secure
with the Spanner (No. 95).
STEP 7:
Remove 4Screws (No. 49) from the Meter
(No. 100) with Spanner (No. 95).
Connect the Extension Wire 2 (No. 56) with
Meter Wire A (No. 100a) and connect the
Sensor Extension Wire 1 (No. 102) with
Meter Wire B (No. 100b). Then attach the
Meter (No. 100) to the bracket of Handlebar
Post (No. 2) with4Screws (No. 49) that
were just removed. Tighten and secure with
the Spanner (No. 95).
NOTE: Insert all wires to the tube of
Handlebar Post (No. 2). Do not cut or pinch
any wires when attaching the Meter (No.
100)
Insert the jack from Adapter (No. 55) to
adapter input on the back of Main Frame
(No. 1), then plug the Adapter (No. 55)into
an outlet.
The assembly is now complete!

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ADJUSTMENT GUIDE
ADJUSTING THE BALANCE
In order to achieve a smooth and comfortable ride,
you must ensure that the bike is stable and secure. If
you notice that the bike is unbalanced during use,
you should adjust the Left & Right Rear End Caps
(No. 32L & No. 32R) located beneath the rear
stabilizer. To do so, simply turn the dials on the Left
& Right Rear End Caps (No. 32L & No. 32R) until
the bike becomes levelled with the floor surface.
Turn counter-clockwise to raise and turn clockwise to
lower.
ADJUSTING THE SEAT
To move the Seat (No. 38) forward or backward,
while seated on the bike, put your feet on the floor.
Shift the Adjustment Handle (No. 8) down to
loosen. Move the Seat (No. 38). Shift the
Adjustment Handle (No. 8) up to secure.
MOVING THE BIKE
There are wheels located on the Front Stabilizer
(No. 5). Hold the handlebar on the Rear Stabilizer
(No. 6) and pull forward to lift the rear of the
recumbent bike off the floor. Now you can move the
recumbent bike.

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IMPORTANT RECUMBENT BIKE INFORMATION
WARNING: This recumbent bike requires a power source of 1 amp (100-240V) in order to
properly operate. For your safety, as well as the safety of others, please verify that the power
source is correct before plugging in the equipment. Any power source above or below this level
could cause significant damage to the equipment and/or user.
OPERATING INSTRUCTIONS
Plug the adaptor into the recumbent bike and into the outlet.
The meter will turn on.
The meter will turn off if there is no activity for 4 minutes. Press any
key on the meter to turn it on again.
NOTE: You can still use the recumbent bike when it is not plugged in.
However, the meter will not be working, and you cannot adjust the
resistance level or use any of the functions.
EXERCISE METER
KEY FUNCTIONS:
KEY
FUNCTION
START/STOP
Start and pause workouts.
Start body fat measurement.
DOWN
Lower the resistance level during workout.
Decrease value of selected parameter.
UP
Increase the resistance level during workout.
Increase value of selected parameter.
ENTER
Input the value or mode.
RECOVERY
Enter Recovery function when meter displays the heart rate value. Recovery
displays F1-F6.
F1 is excellent recovery heart rate.
F6 is poor recovery heart rate.
MODE
During workout, switch display from RPM to SPEED, ODO (ODOMETER) to
DIST (DISTANCE) and WATT to CAL (CALORIES).
Hold for 3 seconds to reset all function values to zero, except ODO
(ODOMETER).
WORKOUT SELECTION:
After turning the meter on by plugging in the adaptor or if already plugged in, pressing any key on
the meter, use the UP or DOWN key to make a selection. Then press ENTER key to choose the
desired mode.
There are 7 basic workout modes:
Manual Program, Pre-set Programs, Watt Control Program, Body Fat Program, Target Heart Rate
Program, Heart Rate Control Programs, and User Programs.
FUNCTIONS:
SPEED: Displays current training speed. Maximum speed is 99.9 MPH.
RPM: Displays current rotation per minute.
TIME: Accumulates the workout time from 0:00 to 99:59. Users can preset the target time they
want.
DIST (DISTANCE): Accumulates the workout distance from 0.00 to 999.9 miles. Users can preset
the target distance they want to reach.