Precor UBK13 User manual

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UBK13/ UBK13 BASE SERVICE
MANUAL
Vertical Upright & Recumbent Bicycles
20039-174 REV A
PRECOR CUSTOMER SUPPORT
Service Manual

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Contents
About This Document .............................................................................................. 2
Right, Left, Front, and Back Conventions .....................................................................................................................2
Safety......................................................................................................................................................................................3
Warning and Caution Statements and General Safety Guidelines.......................................................................4
General Information...........................................................................................................................................................4
Required Tools and Equipment............................................................................. 5
Preventive Maintenance - Bikes ............................................................................6
Regular Preventive Maintenance (Owner) .................................................................................................................6
Quarterly Maintenance ........................................................................................................ 7
On-Site Preventive Maintenance (Service Technician) ..........................................................................................7
Checking the Bicycle Operations .........................................................................8
Primary Belt Tension Adjustment..................................................................................................................................9
Adjusting the Seat Carriage - RBK Only .....................................................................................................................10
RBK13/UBK13 Base Troubleshooting..................................................................12
Display does not Illuminate ........................................................................................................................................... 12
No or Incorrect Pedaling Resistance ........................................................................................................................... 13
RBK13/UBK13 Base Replacement Procedures ................................................ 16
Replacing the Covers - UBK13....................................................................................................................................... 16
Replacing the Covers - RBK13 ....................................................................................................................................... 21
Replacing a Primary Drive Belt..................................................................................................................................... 25
Replacing a Crankarm .................................................................................................................................................... 26
Replacing the Primary Pulley........................................................................................................................................ 28
Replacing the Input Pulley and Axle Assembly........................................................................................................ 31
Replacing the Idler Pulley .............................................................................................................................................. 36
Replacing a Generator.................................................................................................................................................... 38
Replacing a Battery...........................................................................................................................................................41
Replacing the lower PCA ............................................................................................................................................... 42
Replacing the Seat Post Pop-Pin - UBK13 Only .......................................................................................................44
Replacing the Seat Post - UBK Only ...........................................................................................................................46
Replacing a Seat Post Component - UBK Only .......................................................................................................48
Replacing All or Part of a Seat Carriage - RBK only ................................................................................................ 51
Wire and Block Diagrams......................................................................................56
Block Diagrams................................................................................................................................................................. 57
Wire Diagrams ................................................................................................................................................................. 58
Index ............................................................................................................................59

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In This Section
Right, Left, Front, and Back Conventions..................................................................2
Safety .................................................................................................................................3
Warning and Caution Statements and General Safety Guidelines...................4
General Information.......................................................................................................4
Right, Left, Front, and Back
Conventions
In this manual, right, left, front, and back are form the perspective of a user operating the equipment
facing the console.
Section One
About This Document

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Safety
Safety guidelines you should know and follow include:
♦Read the owner’s manual and follow all operating instructions.
♦Operate the equipment on a solid, level surface with the unit properly leveled. The equipment is
properly leveled when the feet are in contact with the floor. Visually check the equipment before
beginning service or maintenance operations. If it is not completely assembled or is damaged in any
way, exercise extreme caution while operating and checking the equipment.
♦When operating the equipment, do not wear loose clothing. Do not wear shoes with heels or
leather soles. Check the soles of your shoes and remove any embedded stones. Tie long hair back.
♦Do not rock the unit. Do not stand or climb on the handlebars, display enclosure, or cover.
♦Do not set anything on the handlebars, display enclosure, or cover. Never place liquids on any part
of the equipment while performing service.
♦To prevent electrical shock, keep all electrical components away from water and other liquids.
♦Do not use accessory attachments that are not recommended by the manufacturer-such
attachments might cause injuries.
♦Units equipped with Personal Viewing Screens will have external power supply and coaxial cable
routed through the bottom of the unit to the top of the display console. Cord management must be
maintained.

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Warning and Caution
Statements and General Safety
Guidelines
Warning statements indicate a particularly dangerous activity. Warning statements you will find in this
manual include:
♦Self powered units, it will either be necessary to either equip the unit with the optional external
power supply or have an assistant pedal on the unit while voltage measurements are being taken.
Because of the danger of working on the unit while it is in motion using the optional external power
supply is strongly recommended.
♦When the unit is used, crank arms are in motion; the generator will operate and produce potentially
hazardous voltages even when the battery is disconnected.
Caution statements are intended to prevent damage to the equipment as a result of the current
activity. Caution statements included in this manual are listed below:
♦When it is necessary to lift or move the equipment, ensure that the equipment has adequate
support and that you use proper lifting techniques.
♦To remove power from the equipment, the optional external power supply (when equipped) must
be disconnected from the wall outlet and the red (positive) wire must be disconnected from the
battery. Always ensure that the equipment external power supply is unplugged from the wall outlet
and the red (positive) wire is removed from the battery when you inspect or adjust the equipment,
or when you isolate, remove, or replace an component.
♦Removing the covers exposes high voltage components and potentially dangerous machinery.
Exercise extreme caution when you perform maintenance procedures with the cover(s) removed.
♦During service operations you will be very close to moving machinery and voltage bearing
components. When you perform maintenance procedures with the covers removed, remove
jewelry (especially from ears and neck), tie up long hair, remove neck ties, and do not wear loose
clothing.
♦Exercise caution when touching any wire or electrical component during equipment operation.
General Information
For the latest exploded view, part number and part pricing information, visit the Precor dealer website
at www.precor.com/connection.

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The following is a summary of the tools and equipment that may be required when you service Precor
Equipment.
Tools
♦Phillip and flat-head screwdrivers
♦Metric allen wrench set
♦Open-end metric wrench set
♦Metric socket wrench set
♦Snap ring pliers
♦Drive belt tension gauge
♦Park Too CCP-22 crankarm puller or Shimano TL-FC10 Crankarm puller
Equipment
♦Anti-static kit
♦Digital multimeter
Section Two
Required Tools and
Equipment

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In This Section
Regular Preventive Maintenance (Owner)..............................................................6
On-Site Preventive Maintenance (Service Technician).......................................7
Preventive maintenance measures are either scheduled or unscheduled. Scheduled preventive
maintenance activities are included here so that you are aware of the preventive measures preformed
on a regular basis.
Regular Preventive
Maintenance (Owner)
Cleanliness of the cycle and its operating environment will keep maintenance problems and service
calls to a minimum. Precor recommends that you perform the following preventive maintenance
schedule.
After Each Use
♦Turn off and, unplug power adapter (if equipped) from the bicycle.
♦Wipe down the covers, handlebars, seat and pedals with a damp cloth.
Daily Maintenance
♦Clean the bicycle's frame, covers, seat and pedals using a water damped cloth. Wipe the surface of
the electronic console with a damp sponge or soft cloth. Dry with clean towel.
Weekly Maintenance
♦Clean underneath the bicycle, following these steps:
1 Turn off the bicycle with the on/off switch, then unplug it from the power adapter (if equipped).
2 Move the bicycle to gain access to the floor directly underneath the bicycle.
3 Vacuum the rug or damp mop the floor.
Section Three
Preventive Maintenance -
Bikes

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4 Make sure the floor is dry before returning the bicycle to its original position.
Quarterly Maintenance
1 Remove the covers.
2 Thoroughly clean inside the bicycle. Use a vacuum cleaner and damp rag to remove all the dust
particles, etc.
3 Check the belt tension per procedure, Primary Belt Tension Adjustment (on page 9).
On-Site Preventive
Maintenance (Service
Technician)
When you are called to service a bicycle perform these preventive maintenance activities:
♦Perform the software diagnostics. Check LED and keypad functions. Record the odometer reading.
For more information, consult the console service manual equipped with your equipment.
♦Visually inspect the drive belts for cracks, fraying or excessive wear.
♦Visually examine all wires and check connectors and wire connections. Secure connections and
replace wiring as necessary.

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In This Section
Primary Belt Tension Adjustment..............................................................................9
Adjusting the Seat Carriage - RBK Only...................................................................10
This section provides you with a quick method of checking operation.
Procedure
1 Start pedaling.
2 With the banner displayed, press QUICK START.
3 The resistance will start at Level 1.
4 Operate the RBK13/UBK13 for 4–5 minutes. As you operate the bike, concentrate on the operating
sounds made by the unit. Be on the alert for unusual rubbing, hitting, grinding, or squeaking noises.
5 Press the RESISTANCE key until you reach Resistance Level 10. Operate the RBK13/UBK13 for
another 2–3 minutes.
6 If the electronic display does not change appropriately, reference per the, Standard Console service
manual.
7 If the resistance does not change or the operation of the bike feels inconsistent compared with
Resistance Level 1, troubleshoot per procedure, No or Incorrect Pedaling Resistance .
8 Press the RESISTANCE key until you reach Resistance Level 20. Operate the bike for another 2–3
minutes.
9 If the resistance of the bike does not change or operation feels inconsistent with Resistance Levels 1
and 20, troubleshoot per procedure, No or Incorrect Pedaling Resistance.
10 Check the LED’s mounted on the upper PCA and the function keys displayed on the electronic
console by performing the diagnostics test in the Standard Console service manual.
Section Four
Checking the Bicycle
Operations