Losi LOSB0104T2 User Manual

1/10-SCALE ELECTRIC READY-TO-RUN ROCK CRAWLER

LOSB0104 1/10 NIGHT CRAWLER RTR ROCK CRAWLER

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Losi, a Division of Horizon Hobby, Inc.

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Table of Contents

Introduction

Introduction............................................................................

Safety Precautions.................................................................

Battery/Charging....................................................................

Supplied and Required Equipment........................................

Technical Overview.............................................................

ESC Overview/Requirements................................................

Transmitter Battery Installation..............................................

Vehicle Battery Installation...................................................

Quick Start............................................................................

Losi DSM Radio System.................................................

12-13

Driving the 1/10 Night Crawler..............................................

Tuning, Adjusting and Maintaining..................................

15-16

Troubleshooting the 1/10 Night Crawler...............................

Warranty Information......................................................

17-18

5-7

10

11

14

16

2

3

3

4

8

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Thank you for purchasing the Losi® 1/10 Night Crawler. We are
confident you will be satisfied with the performance of this durable
and resilient vehicle.

Understanding that you are anxiously wanting to get your 1/10
Night Crawler ready for the rocks, it will be to your long term
benefit to make the effort and read through the entire manual. In
the following pages you will find all the information you will need
to set up as well as operate your new 1/10 Night Crawler to its full
potential.

If you are an experienced RC hobbyist, or new to RC vehicles, it
will benefit you to read all enclosed information.

From everyone at Losi we would like to thank you again for
choosing the 1/10 Night Crawler. Our goal is helping people have
fun and enjoy using our products.

Register your Losi Product Online

Register your 1/10 Night Crawler now and be the first to find out
about the latest option parts, product updates and more. Log on
to www.LOSI.com and follow the product registration link to stay
connected.

Declaration of Conformity.....................................................

RC Terminology....................................................................

Parts Listing....................................................................

21-24

19

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Losi/Horizon Support

If you have any questions concerning setup or operation of your
1/10 Night Crawler please call Horizon Customer Support at
1-877-504-0233.
Hours:
Monday thru Friday from 8:00am CST to 5:00pm CST

In the United Kingdom please call Horizon Hobby UK Customer
Support at [phone].

Getting Ready

Thoroughly read all the enclosed material, precautions and follow
instructions to avoid damaging your new RC vehicle. If you
choose to not follow these steps or instructions, it will be consid­ered negligence.
If after review of this manual and prior to running your 1/10 Night
Crawler, you determine this RC vehicle is not what you want—DO
NOT proceed and DO NOT run the 1/10 Night Crawler. If the 1/10
Night Crawler has been run, your local hobby shop will not be
able to process a return or accept it for exchange.

Caution:

THIS PRODUCT IS SUITABLE FOR CHILDREN 14 YEARS OR
OVER. THIS PRODUCT IS NOT A TOY. This product is not
intended for use by children without direct adult supervision.
When driving the 1/10 Night Crawler it is important that you take
measures to avoid someone being hit by the vehicle. You may
cause serious injury to another person, or to personal property
should you make contact while running the 1/10 Night Crawler.

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Safety Precautions

We hope you operate this RC model in a safe, reasonable and
cautious fashion in order to enjoy your vehicle. Should you operate
this vehicle without a cautious and reasonable approach it may
result in serious injury and/or property damage. Only you can
control and make certain that safety precautions and instructions
are followed.

General:

• The 1/10 Night Crawler is not a toy. This product is not
intended for use by children without direct adult supervision.

• Avoid an area that has many pedestrians or crowds of
people.

• Keep in mind that this vehicle is radio controlled and can
experience moments of radio loss or interference, so
provide for a margin of error at all times.

• Please be aware that the motor and batteries of this RC
vehicle will get HOT during each use. Be careful not to burn
yourself.

Electronic Speed Control (ESC):

• Read all safety precautions prior to each use.

• Never leave the vehicle/ESC unsupervised while it is
switched on, in use or connected to a power source. If there
is a short-circuit or product defect, it could result in fire.

• If there are exposed wires, do not use the ESC until you
have installed shrink-wrap or replaced the wire.

• Disconnect the battery from the ESC after use.

• The ESC is water resistant, but should not be submerged or
exposed to long periods of moisture.

• Do not attempt to use more than a 2S LiPo battery or

more than a 7-cell NiMH battery; doing so will damage
the ESC and could result in fire.

• Always turn on the transmitter first then the ESC to prevent
an out-of-control vehicle.

• When setting your Electronic Speed Controller:

º Please disconnect motor or remove the pinion gear

during ESC setup or calibration functions.

º Keep loose clothing, hair, gloves and fingers away

from moving parts at all times.

º Rubber tires can cause severe injury if there is a

failure while running the vehicle while on a stand or
when being held. Ensure rubber tires are securely
mounted to the rims and if not, re-glue them and
check them often for security.

Batteries and Charging:

The 1/10 Night Crawler uses rechargeable batteries such as
NiMH or LiPo. These batteries require special handling to
preserve performance and last a long time. Read all instructions
and precautions that are provided with the batteries intended to
be used in the 1/10 Night Crawler.

• Read all instructions provided by the manufacturer of the
batteries.

• Responsible adult supervision is necessary while charging
batteries.

• Always check to ensure the polarity of battery connection is
correct.

• Never leave batteries unattended while charging.

• Never charge a battery while it is installed in the 1/10 Night
Crawler.

• Do not charge any battery that appears to have any
damage.

• If there are exposed wires do not charge or use the battery
until you have installed shrink-wrap or replaced the
complete wire.

When charging NiMH batteries, select a charger to meet your
requirements. Chargers can be of two primary types for their
source of power; a 100-240V wall charger, or one which requires
a 12V power supply. Follow the charger manufacturer’s instruc­tions and precautions during each use.

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Supplied and Required Equipment

Supplied tools:

Four (4) Hex Wrenches (L shaped) 3/32, 5/64, 1/16 and .050
Bind Plug

Recommended Accessories:

- Hobby grade knife

- Needle nose pliers

- Side cutting pliers

- Double-sided tape (LOSA4004)

- Safety Goggles

- Soldering iron

Required Equipment:

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Four (4) AA batteries

3

NiMH battery charger with automatic “peak detection” or

LiPo compatible charger recommended.

MultiPro Intelligent Balance Charger (LOSB9606)

Using Your Charger:

If you do not yet have a charger, a peak detecting charger will
provide the performance required and take care of your expensive
batteries.

A Six (6) cell NiMH or 2S LiPo battery pack.

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Vehicle Battery
(6-Cell 7.2V “Stick Pack”)
LOSB9903

A popular choice for a charger would be a peak detection charger
that can be plugged into a household AC wall socket. The peak
detection portion of the charger monitors the battery charging and
will automatically shut off upon full charge.

Other peak detection chargers require a 12V power source to
charge your batteries. You would need to use or purchase a
hobby grade 12V power supply before charging.

If you are going to be using a charger other than a peak detection
charger it is important to have your battery fully discharged prior
to recharging. Many of these have a timer that allows you to set
the amount of charge time. If the battery was not fully discharged
from prior use, you can potentially overcharge your battery pack.

If you are using a LiPo battery be sure to consult manufacturers
suggestions for an appropriate LiPo compatible charger.
Chargers designed for NiMH cells only should never be used to
charge your LiPo batteries and could result in serious injury.

Do not charge any battery unattended, and monitor for heat build
up. If the battery pack is more than warm to the touch immediately
discontinue charging.

Read all safety precautions supplied by the charger manufacturer,
and also any from the battery manufacturer.

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The Losi 1/10 Night Crawler Overview

Electronic Speed Control

(NiMh/LiPo Compatible)

On/Off Switch

Body Mount

EC3 Battery Connector

Battery Strap

Motor

LED Light

2.4GHz DSM Reciever

Digital Servo

5

Antenna

Power On/Off

Switch

Dual Rate Steering

Adjustment

The Losi LSR-3000 Radio System Overview

Steering Wheel

Steering Trim (TH. Trim)

Throttle Trim (TH. Trim)

Throttle/Brake Trigger

Auxiliary Channel

Throttle Channel

Steering Channel

Binding Port

6

MSC 12L 12T ESC

1/10 Night Crawler Electronics System Overview

Motor

MRX-3000 DSM Receiver

Male EC3
Battery Connector

One-Touch
Setup Button

Bind Plug

Digital Servo

7

MSC-12L Fwd/Rev ESC

Features

• Lipo, NiMH/NiCd compatible

• 4 user selectable modes—Forward/reverse, Forward only
race, Practice mode with slow acceleration, and Crawler.

• High power FET control with proportional forward and
reverse.

• High frequency design delivers smooth speed transition.

• Thermal Overload Protection prevents damage due to over
current conditions.

• Pre-wired with EC3 battery plug and bullet-style motor
connectors.

• Designed to operate with stock motors (12 turns or higher).

• Push-button programming with one touch setup.

• Water Resistant

Specifications

Operation..............................Proportional forward, proportional

reverse with braking delay

Input Voltage ........................4-cell (4.8 volts) to 6-cell (7.2 volts)

DC NiMH/NiCd or 2S LiPo (7.4 volts)

Peak Current ........................1000A Forward and 350A Backwards

Continuous Current ..............250A Forward and 125A Backwards

Full-On Resistance ...............0.0014 Ohms Forward

0.0028 Ohms Backwards

Frequency ............................1kHz

BEC output ...........................5V DC, 1 amp max. at 7.2V

Overload Protection..............Thermal

Dimensions ..........................1.575in x 1.575in x 1.063in

(40mm x 40mm x 27mm)

Weight ..................................1.87 oz (53 g)

Connecting the Battery

The MSC-12L comes pre-wired with a EC3 connector. Use battery
packs from 4-cell (4.8-volt) to 7-cell (8.4-volt) sub-C size battery
packs or with 2S LiPo packs (7.4-volt).

1. Be sure the on/off switch is in the “off” position.

2. Connect a fully charged battery pack to the speed control’s
battery connector.

Speed Control Programming

NOTE: While in the programming mode, no power is applied to
the motor.

Battery Selection: When the ESC is powered on, the LED will be
flashing for 2 seconds to indicate the Selected Battery Type.
During this time the user can press the key to toggle between
LiPo and NiMH/NiCd modes. After the key has been pressed
(battery type selected), the LED will flash for 2 more seconds.

A. Turn on ESC and push button once within 2 seconds, push
again to toggle between modes.
B. Red light indicates LiPo mode (with 6 volt cut-off)
C. Green light indicates NiMH/NiCd mode

One Touch Endpoint Setup

NOTE: Please be sure to set all throttle trim settings to neutral
before performing an endpoint setup.

A. Hold button and turn on ESC until the Red/Green light
comes on. Once on, release button.
B. Pull trigger to full throttle position until the green light goes
from flashing to solid. Once solid, your forward endpoint is
now set.
C. To set reverse endpoint, push the trigger into the full
reverse position until the flashing red light turns solid. At this
point your reverse/brake endpoint is now set.
D. Return trigger to neutral setting. The green light will now
be solid and you are ready to go!

Selecting Speed Controller Modes

To change modes on your MSC-12L hold the set up key for
over 5 seconds while in neutral. Once you find desired mode,
simply release the key and you are ready for action.

Forward/Reverse mode—Solid Green LED
Forward Only mode—Fast Flashing Green LED
Practice mode—Slow Flashing Green LED
Crawler mode*—Solid Green and Red LED

Adjusting the Transmitter

1. Set the “throttle reversing” switch to the NORMAL position.

2. Set the “throttle trim” to the CENTER position.

Troubleshooting Guide

Symptom Solution

Programming is not complete. Reprogram the ESC by following the programming instructions.
Speed control connected to receiver incorrectly.

Steering servo operates but the motor does not run

Steering and motor do not function

Full speed not attainable

Motor slows but will not stop

Reduced radio range/Interference

Motor defective. Test motor independently, repair or replace as needed.
Low batteries. Charge as needed.
Overload Protection enabled. Check motor and connections.

Receiver wired incorrectly. Check polarity and orientation of controlplugs.
Batteries discharged. Recharge or replace.

Transmitter adjusted improperly.
ESC programmed incorrectly. Reprogram.

Throttle trim may be set improperly.
ESC program does not match transmitter. Reprogram ESC.

Motor capacitors broken/missing. Repair or replace.
Motor noise. Move receiver further away from ESC, motor and wiring
Transmitter batteries low. Replace batteries.

*NOTE: Crawler mode is for use in rock crawling vehicles only.

Do not use this mode with other vehicles. Doing so may

damage the vehicle.

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