Losi XXX-S Sport User Manual
Page 3
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TOOLS REQUIRED
Team Losi has supplied all necessary allen wrenches and a special assembly wrench that is needed for assembly and turnbuckle adjustments.
The following common tools will also be required: Needle-nose pliers, regular pliers, medium grit sandpapper, hobby knife, scissors, and body
cutting/trimming tools. A soldering iron may be necessary for electrical installation. 3/16", 1/4", and 11/32" nut drivers are optional.
RADIO/ELECTRICAL
A suggested radio layout is provided in this manual. Your high-performance R/C center should be consulted regarding specific questions
pertaining to radio/electrical equipment.
HARDWARE IDENTIFICATION
When in question, use the hardware identification guide in each step. For screws, the prefix number designates the screw size and number of
threads per inch (i.e. 4-40 is #4 screw with 40 threads per inch). The second number or fraction designates the length of the screw. For cap head
and button head screws, this number refers to the length of the threaded portion of the screw. For flat head screws, this number refers to the
overall length of the screw. Bearings and bushings are referenced by the inside diameter x outside diameter. Shafts and pins are referred to by
diameter x length. Washers are described by inside diameter or the screw size that will pass through the inside diameter. E-clips are sized by the
shaft diameter that they attach to.
MOTORS AND GEARING
The XXX-S includes an 90-tooth, 48-pitch spur gear. The internal drive ratio of the XXX-S is 1.83. The pinion gear that is used will determine
the final drive ratio. To calculate the final drive ratio, first divide the spur gear size by the pinion gear size. For example, if you are using a 20-tooth
pinion gear, you would divide 90 (spur gear size) by 20 (pinion gear size). 90/20 = 4.50. This tells you that 4.50 is the external drive ratio. Next,
multiply the internal drive ratio (1.83) by the external drive ratio (in this case 4.50). 1.83 x 4.50 = 8.235. This means that by using a 20-tooth pinion
gear with the standard 90-tooth spur gear, the final drive ratio is 8.235:1.
Consult your high-performance shop for recommendations to suit your racing style and class. The chart below lists some of the more
common motor types and recommended initial gearing for that motor. Ratios can be adjusted depending on the various track layouts, tire sizes,
and battery types.
RECOMMENDED INITIAL GEARING FOR COMMON MOTORS
TYPE OF MOTOR
PINION
SPUR
24º Stock
26
90
8-Turn Modified
16
90
9-Turn Modified
17
90
10-Turn Modified
18
90
11-Turn Modified
19
90
12-Turn Modified
20
90
13-Turn Modified
21
90
14-Turn Modified
21
90
15-Turn Modified
22
90
TABLE OF CONTENTS
1. INTRODUCTION ................................................................................ i
Completed Kit Dimensions .............................................................. i
Notes & Symbols .............................................................................. i
Kit Manual Organization .................................................................. i
Important Safety Notes .................................................................... i
Tools Required ................................................................................. ii
Radio/Electrical ................................................................................ ii
Hardware Identification .................................................................. ii
Recommended Gearing ................................................................... ii
2. BAG A ............................................................................................... 1-3
3. BAG B ............................................................................................... 4-7
4. BAG C ........................................................................................... 8-11
5. BAG D ........................................................................................ 12-16
6. BAG E ......................................................................................... 17-21
7. BAG F ......................................................................................... 22-24
8. BAG G ................................................................................................ 25
9. BAG H ........................................................................................ 26-30
10. Checklist Before Your First Run ................................................. 31
11. Tips From the Team .................................................................. 31-33
12. Spare Parts List ........................................................................ 34-36
13. Blank Set-up Sheet .......................................................................... 37
Team Losi is continually changing and improving designs; therefore, the actual part may appear slightly different than the illustrated part. Illustrations of parts and
assemblies may be slightly distorted to enhance pertinent details.
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