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    Levo Retailer Technical Guide 

Troubleshooting & Diagnosis Guide - 
Fundamentals

This section outlines the basic process for troubleshooting and diagnosing drive system issues for all Specialized Levo bikes. The Levo 
system is simple compared to other ebikes. It has six easily replaceable components: the motor, battery, wiring harness, speed sensor, 

magnet, and charger. 
The basic troubleshooting process entails that you: 

•  Get a description of the issue from the rider

•  Determine if the issue is function or performance related
•  Diagnose the issue

•  Call Retail Care for additional support

The following provides a more detailed look at each step in the process.

Get a Description 

Get a full description of the symptoms, riding conditions, and typical maintenance and care practices from the rider. Ask probing 
questions about what the rider experienced, such as: what was the situation when the issue occurred, what were the riding conditions, 

how was the bike maintained, and were any changes made to bike including changing components not related to the drive system. 
Some common symptoms, riding conditions, and maintenance habits to ask about and listen for include:

Symptoms

Riding Conditions

Maintenance and Care

Noise, grinding
Noise, squeaking
Noise, clunking
Looseness
Decrease in power
Changes in performance
Intermittent power
Reduced range
No power
Does not turn on
Beeping from battery
Messages on app
Communication problems with app/other 

device

Ambient temperature and weather
Macro terrain - mountainous, rolling, flat, 
straight, twisty, etc
Micro terrain - soil type, soil moisture, 

rocks, roots, dusty, etc
Riding style - stand & hammer vs. sit & 

spin, accelerate hard or easy, attack climbs 

and descents
Length of ride
Charge level at start and finish
Rider defined settings
Mode setting
Bike transport method - ridden to trail, roof 

rack, back of pickup/tailgate pad, kept in 

car, battery removed or installed etc

Charged to full capacity immediately after 
every ride
Stored after a long ride
Stored for extended times
Ambient temperature - charging
Ambient temperature - storage
Cleaning methods - garden hose, bucket 

and brush, pressure washer, not usually 

washed
Drive system changes or additions - motor, 
battery, harness, magnet, speed sensor, 

charger
Any other component changes - drivetrain, 

tire size/type, wheels, brakes, connected 

devices, trailers

Determine the Issue

All Levo drive system faults or errors are either 

performance

 or 

function

 related issues. To resolve either type requires a different 

approach.

PERFORMANCE
Performance issues are defined as when the system works but not to the rider's expectations. The information gathered in the 

Get a 

Description

 process will help expedite the diagnosis of performance issues especially if a Rider Care consultation is required.

FUNCTION
Function issues are defined as when the system does not work. For example, if the battery turns on but no power is transmitted to the 
wheel. This type of issue is most often due to one single component that is faulty, damaged, or missing. It can also be the result of a bad 

connection between components. It is rare for more than one component or connection to be faulty at the same time.
The core elements of functional issue diagnosis are: visual inspection of components, using the Mission Control App, and substituting 
components.

Summary of Contents for MY2017

Page 1: ...Levo Retailer Technical Guide MY2017...

Page 2: ...Specialized Retailers only If you have any questions please contact Retail Care at 1 800 722 4423 Please consult the Service Site at service specialized com or linked from B2B for any updates to this...

Page 3: ...T 18 or equivalent RECOMMENDED TOOLS Counterweighted or powered repair stand Handlebar stem mounted phone holder RECOMMENDED SERVICE PARTS INVENTORY Magnet holder including magnet plate anodized black...

Page 4: ...onjunction with Turbo PC Connect and Diagnostic Tool Note previous versions of the Turbo PC Connect and Diagnostic Tool will only update the battery firmware The previous versions will not update the...

Page 5: ...nsor Smartphone or tablet Android or iOS System requirements Android 4 3 Jellybean or later iOS 8 1 or later All Levo system diagnosis and user customization is performed through the Mission Control A...

Page 6: ...kes can be easily maneuvered in the stand which reduces the potential for damage to the bike while showcasing to Levo riders a level of professionalism that inspires confidence in the retailer Handleb...

Page 7: ...tected when the magnet mounted on the rear brake rotor passes a reed switch in the speed sensor The speed sensor then sends a signal to activate the motor The motor will not provide power if the magne...

Page 8: ...tock 32T may inhibit climbing and make larger gears less useful because the larger gears will be difficult to engage until the speed is above the speed limiter i e the speed is above the limit where t...

Page 9: ...n a 504 Wh capacity The battery requires the additional service item SKUs that follow for installation and use Recommended inventory 1 2 Battery pin w o hardware S166800005 Recommended inventory 3 Bat...

Page 10: ...n v e n t o r y This section outlines optional replacement parts that a retailer might choose to keep in stock Bearing kit Levo FSR S160600004 Bolt kit for Levo FSR S160500007 Crank custom alloy arm...

Page 11: ...o Retailer Technical Guide R e q u i r e m e n t s R e c o m m e n d a t i o n s Spider Levo Fat 104 BCD S161600017 Spider 104 BCD S161600018 Chain guide Fat S161200002 Chain guide 29 and 6Fattie S161...

Page 12: ...Technical Guide R e q u i r e m e n t s R e c o m m e n d a t i o n s Chain stay protector mastic tape Levo Fat S166900002 Chain stay protector mastic tape Levo Hardtail S166900004 Chain stay protecto...

Page 13: ...in whip or apply the rear brake with the chain in the small cog then tighten the lockring until it bottoms out The lockring is a standard right hand thread Confirm that the crankarms are tight The cra...

Page 14: ...the suspension The increase in weight requires an increase in spring rate for both the front and rear suspension In addition the rebound damping settings should change to reflect the increase in sprin...

Page 15: ...to pedal on climbs to allow the motor to do most of the work The motor will automatically shut off if it does not receive a signal generated when the magnet passes the speed sensor after 0 2 seconds...

Page 16: ...replace the chain A worn chain will increase wear on the drivetrain particularly the cassette The following wear items will wear more quickly on a Levo bike because the rider will travel a further dis...

Page 17: ...ll supply 504 W in one hour A battery with a larger capacity will provide Longer range per charge just like a larger gas tank in a car would provide longer range Longer overall battery life the larger...

Page 18: ...um power for long without overheating Unit of Power Watts W 748 W 1 hp Nominal Power The amount of power the motor provides under normal operating conditions without generating excess heat Typically t...

Page 19: ...rain soil type soil moisture rocks roots dusty etc Riding style stand hammer vs sit spin accelerate hard or easy attack climbs and descents Length of ride Charge level at start and finish Rider define...

Page 20: ...s and how address them are found in the next section Troubleshooting Diagnosis Performance Issues FUNCTION DIAGNOSIS Function issues or faults are typically due to a single component that is damaged d...

Page 21: ...ing clunking Occurs intermittently during specific conditions such as Acceleration Hard efforts Rapid changes from pedaling to coasting Loose spider and spider lockring Remove grease and tighten to 70...

Page 22: ...cadence than normal by using lower easier gears Continue to pedal on climbs to engage the motor Use shorter cranks for better pedal clearance Use a lower saddle position No motor assist after a ride d...

Page 23: ...ut off The communication module in the battery is defective Contact Retail Care the battery is not servicable App does not display bike data App connects to bike but no data is transmitted Faulty data...

Page 24: ...perature Power is reduced around 175 F 80 C Update the motor firmware to 4 0 1 early 2017 Contact Retail Care if temperature related power restriction continues after the motor firmware update Range i...

Page 25: ...Magnet Is the magnet assembly attached to the rear hub with two brake rotor bolts Ask about any component changes wheels brakes etc The magnet is required for the motor to operate D i a g n o s e S y...

Page 26: ...nector measure the length between plugs If the distance is 165 mm replace the harness with a 180 mm length version Does a replacement harness address the issue Speed Sensor Is there any external damag...

Page 27: ...baskets racks Turbo Drive System Warranty The warranty for the drive system is specifically laid out Two years Motor Cable connectors Remote User interface Two years or 300 charge cycles Battery will...

Page 28: ...ear Wheel tension and true check monthly Motor belt replacement 9500 miles 15000km These services have value to the rider if they are pro actively sold as ways to maintain the Turbo or Levo ride exper...

Page 29: ...Turbos and to all Model Year 2014 and newer model bicycles and covers only Specialized branded products Any other original component or part will be covered by the stated warranty of the original manu...

Page 30: ...zed Specialized Dealer for the applicable warranty THIS IS A FULL AND COMPLETE STATEMENT OF SPECIALIZED S LIMITED WARRANTY SPECIALIZED DOES NOT AUTHORIZE OR ALLOW ANYONE INCLUDING ITS AUTHORIZED DEALE...

Page 31: ...31 Levo Retailer Technical Guide...

Page 32: ...SPECIALIZED BICYCLE COMPONENTS 15130 Concord Circle Morgan HIll CA 95037 408 779 6229 0000082782_RG_R1 02 17...

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