Team Losi Xcelorin 8th User manual

Xcelorin 8th Sensorless Brushless Motor Instructions
Xcelorin 8th Sensorless Motors v1.0
LOSB9420 1300Kv ◊LOSB9421 1700Kv ◊LOSB9422 2100Kv ◊
Thank you for purchasing the Losi™ Xcelorin™ sensorless motor. This motor will provide you the
benefit of the latest in brushless technology.
We believe it will be to your benefit to take the time and effort to read these instructions.
We are confident you will be satisfied with the performance of the Xcelorin Sensorless Motor.
Losi/Horizon Support
If you have any questions concerning operation of your Xcelorin Motor, please call Horizon customer
support at 1 877 504 0233.
You are welcome to call us with any support issue or question you may have.
Safety Precautions and Warnings:
•Please read instructions before operating.
•DO NOT use a Schottky Diode with this motor.
•Avoid over-gearing by monitoring temperature.
•Operating temperature should not exceed 190F – 205F (87C – 96C) degrees.
•DO NOT over-tighten the motor mounting screws. Damaged threads are not covered under
warranty.
•Ensure the motor screws do not go into the motor more than 0.180 in (4.5mm).
Specifications:
LOSB9420
LOSB9421 LOSB9422
Sensorless Construction Yes Yes Yes
Number of Poles 4 4 4
Rotor Magnet Sintered Sintered Sintered
RPM @ 11.1V 14,430 18,870 23,310
RPM per Volt 1300 1700 2100
Power (W) 1200 1500 1900
Efficiency 90% 90% 86%
Common Specifications:
Precision Ball Bearings
Compatible with 2S thru 5S LiPo batteries, and from 6 to 12 cells
Weight: 10.8 oz (306 g)

Xcelorin 8th Sensorless Brushless Motor Instructions
Xcelorin 8th Sensorless Motors v1.0
Installation and Maintenance:
•Make certain the 4mm motor screws being used do not extend into the motor more than
0.18 in (4.5mm). Otherwise, you can internally damage the stator windings.
•With a Sensorless motor you will need to connect the 3 ESC motor leads from the Electronic
Speed Control (ESC), one to each tab.
•If the motor runs in the opposite direction desired, unplug any two motor wires, reverse the
location and plug back together.
•Do not over-tighten the motor screws.
•Brush off dirt and dust frequently from the bearings. Place a drop of oil on each bearing at
the same time.

Xcelorin 8th Sensorless Brushless Motor Instructions
Xcelorin 8th Sensorless Motors v1.0
Gearing Suggestions:
All the following gearing recommendations are based on a 150 ft by 100 ft dirt
track. Monitor temperatures of the ESC and Motor for any size, and type of track.
All pinion recommendations with 45T Spur Gear Losi Vehicles
Xcelorin 4S 4S 5S 5S
Motor
Kv
Losi
Buggy
Losi
Truggy
Losi
Buggy
Losi
Truggy
1300 16 (9.30) 17 (11.38) 15 (9.93) 16 (12.09)
1700 15 (9.93) 16 (12.09) 14 (10.64) 15 (12.90)
2100 13 (11.46) 14 (13.82) 12 (12.41) 13 (14.88)
Final Drive Ratios for brands other than Losi Vehicles
Xcelorin 4S 4S 5S 5S
Motor Kv Buggy Truggy Buggy Truggy
1300 9.50 11.50 10.10 12.25
1700 10.10 12.25 10.90 13.15
2100 11.75 14.20 12.80 15.20

Xcelorin 8th Sensorless Brushless Motor Instructions
Xcelorin 8th Sensorless Motors v1.0
Warranty Period:
Exclusive Warranty- Horizon Hobby, Inc., (Horizon) warranties that the Products purchased (the "Product") will
be free from defects in materials and workmanship at the date of purchase by the Purchaser.
Limited Warranty
(a) This warranty is limited to the original Purchaser ("Purchaser") and is not transferable. REPAIR OR REPLACEMENT AS
PROVIDED UNDER THIS WARRANTY IS THE EXCLUSIVE REMEDY OF THE PURCHASER. This warranty covers
only those Products purchased from an authorized Horizon dealer. Third party transactions are not covered by this warranty.
Proof of purchase is required for warranty claims. Further, Horizon reserves the right to change or modify this warranty without
notice and disclaims all other warranties, express or implied.
(b) Limitations- HORIZON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT NON-
INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCT. THE
PURCHASER ACKNOWLEDGES THAT THEY ALONE HAVE DETERMINED THAT THE PRODUCT WILL
SUITABLY MEET THE
REQUIREMENTS OF THE PURCHASER’S INTENDED USE.
(c) Purchaser Remedy- Horizon's sole obligation hereunder shall be that Horizon will, at its option, (i) repair or (ii) replace,
any Product determined by Horizon to be defective. In the event of a defect, these are the Purchaser's exclusive remedies.
Horizon reserves the right to inspect any and all equipment involved in a warranty claim. Repair or replacement decisions are at
the sole discretion of Horizon. This warranty does not cover cosmetic damage or damage due to acts of God, accident, misuse,
abuse, negligence, commercial use, or modification of or to any part of the Product. This warranty does not cover damage due
to improper installation, operation, maintenance, or attempted repair by anyone other than Horizon. Return of any goods by
Purchaser must be approved in writing by Horizon before shipment.
Damage Limits:
HORIZON SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES, LOSS OF
PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCT,
WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY. Further,
in no event shall the liability of Horizon exceed the individual price of the Product on which liability is asserted. As Horizon
has no control over use, setup, final assembly, modification or misuse, no liability shall be assumed nor accepted for any
resulting damage or injury. By the act of use, setup or assembly, the user accepts all resulting liability.
If you as the Purchaser or user are not prepared to accept the liability associated with the use of this Product, you are advised to
return this Product immediately in new and unused condition to the place of purchase.
Law: These Terms are governed by Illinois law (without regard to conflict of law principals).
Safety Precautions:
This is a sophisticated hobby Product and not a toy. It must be operated with caution and common sense and requires some
basic mechanical ability. Failure to operate this Product in a safe and responsible manner could result in injury or damage to the
Product or other property. This Product is not intended for use by children without direct adult supervision. The Product
manual contains instructions for safety, operation and maintenance. It is essential to read and follow all the instructions and
warnings in the manual, prior to assembly, setup or use, in order to operate correctly and avoid damage or injury.
Questions, Assistance, and Repairs:
Your local hobby store and/or place of purchase cannot provide warranty support or repair. Once assembly, setup or use of the
Product has been started, you must contact Horizon directly. This will enable Horizon to better answer your questions and
service you in the event that you may need any assistance. For questions or assistance, please direct your email to
[email protected], or call 877.504.0233 toll free to speak to a service technician.
Inspection or Repairs
If this Product needs to be inspected or repaired, please call for a Return Merchandise Authorization (RMA). Pack the Product
securely using a shipping carton. Please note that original boxes may be included, but are not designed to withstand the rigors
of shipping without additional protection. Ship via a carrier that provides tracking and insurance for lost or damaged parcels, as
Horizon is not responsible for merchandise until it arrives and is accepted at our facility. A Service Repair Request is
available at www.horizonhobby.com on the “Support” tab. If you do not have internet access, please include a letter with your
complete name, street address, email address and phone number where you can be reached during business days, your RMA
number, a list of the included items, method of payment for any non-warranty expenses and a brief summary of the problem.
Your original sales receipt must also be included for warranty consideration. Be sure your name, address, and RMA number are
clearly written on the outside of the shipping carton.
Warranty Inspection and Repairs

Xcelorin 8th Sensorless Brushless Motor Instructions
Xcelorin 8th Sensorless Motors v1.0
To receive warranty service, you must include your original sales receipt verifying the proof-of-purchase date. Provided
warranty conditions have been met, your Product will be repaired or replaced free of charge. Repair or replacement decisions
are at the sole discretion of Horizon Hobby.
Non-Warranty Repairs
Should your repair not be covered by warranty the repair will be completed and payment will be required without
notification or estimate of the expense unless the expense exceeds 50% of the retail purchase cost. By submitting the item
for repair you are agreeing to payment of the repair without notification. Repair estimates are available upon request. You
must include this request with your repair. Non-warranty repair estimates will be billed a minimum of ½ hour of labor. In
addition you will be billed for return freight. Please advise us of your preferred method of payment. Horizon accepts money
orders and cashiers checks, as well as Visa, MasterCard, American Express, and Discover cards. If you choose to pay by credit
card, please include your credit card number and expiration date. Any repair left unpaid or unclaimed after 90 days will be
considered abandoned and will be disposed of accordingly. Please note: non-warranty repair is only available on
electronics and model engines.
United States:
Electronics and engines requiring inspection or repair should be shipped to the following address:
Horizon Service Center
4105 Fieldstone Road
Champaign, Illinois 61822
All other Products requiring warranty inspection or repair should be shipped to the following address:
Horizon Product Support
4105 Fieldstone Road
Champaign, Illinois 61822
Please call 877-504-0233 or e-mail us at [email protected] with any questions or
concerns regarding this product or warranty.
United Kingdom:
Electronics and engines requiring inspection or repair should be shipped to the following address:
Horizon Hobby UK
Units 1-4 Ployters Rd
Staple Tye
Harlow, Essex
CM18 7NS
United Kingdom
Please call [phone] or e-mail us at [email protected] with any questions or
concerns regarding this product or warranty.
Instructions for Disposal of WEEE by Users in the European Union
This product must not be disposed of with other waste. Instead, it is the user’s responsibility to
dispose of their waste equipment by handing it over to as designated collection point for the
recycling of waste electrical and electronic equipment. The separate collection and recycling of your
waste equipment at the time of disposal will help to conserve natural resources and ensure that it is
recycled in a manner that protects human health and the environment. For more information about
where you can drop off your waste equipment for recycling, please contact your local city office, your
household waste disposal service or where you purchased the product.