Duratrax Maximum BX User Manual

Warranty

• DuraTrax®will warranty this kit for 90 days after the purchase date from defects in materials or

workmanship. DuraTrax

will either repair or replace, at no charge, the incorrectly made part.

• Make sure you save the receipt or invoice you were given when you bought your model! It is your proof of purchase and we must see it before we can honor the warranty.

• To return your Maximum BX for repairs covered under warranty you should send your buggy to:

Hobby Services

1610 Interstate Drive

Champaign, Illinois 61822

Attn: Service Department

Phone: (217) 398-0007 9:00 am - 5:00 pm Central Time M-F

E-mail: hobbyservices@hobbico.com

Before Building:

We want the building and operating of this vehicle to be a success, so BEFORE removing any parts from the parts bags please read this manual thoroughly and watch the included video to familiarize yourself with the model. If for any reason you think this model is not for you, return it to your dealer immediately. PLEASE NOTE: Your hobby dealer cannot accept a return on any model after assembly has begun.

ASSEMBLY AND OPERATION MANUAL

™

Introduction.................................................................................2

Safety Precautions .....................................................................2

Helpful Hints................................................................................2

Stress-Tech

™

Parts Guarantee...................................................2

Repair Service.............................................................................2

Specification & Description Changes.......................................3

Screw Information ......................................................................3

Required Items for Completion .................................................3

Tools You Will Need....................................................................3

Finishing the RTR Version.........................................................4

Assembly of the Pre-Built Version............................................6

Preparing the Radio System .................................................6

Section 1: Steering Servo Assembly........................................6

Section 2: Assembling the Radio Tray .....................................7

Section 3: Installing the Throttle Servo....................................9

Section 4: Throttle & Brake Linkages.......................................9

Section 5: Radio Adjustments.................................................10

Section 6: Prepare the Engine.................................................11

Section 7: Finishing .................................................................12

Section 8: Carburetor Settings................................................12

Section 9: Breaking-In the Engine ..........................................13

Section 10: Running the Engine .............................................13

Section 11: Engine Maintenance.............................................14

Section 12: Performance Tuning.............................................14

Section 13: Maintenance Tips .................................................15

Engine Trouble Shooting .........................................................16

Thank you for purchasing the DuraTrax Maximum BX. This manual contains the instructions you need to build, operate, and maintain your new nitro R/C buggy. Read over this manual thoroughly before building or operating the Maximum BX.

When the safety precautions are followed, the Maximum BX will provide years of enjoyment. Use care and good sense at all times when operating this radio controlled buggy. Failure to use this vehicle in a safe, sensible manner can result in injury or damage to property. You and you alone must insure that the instructions are carefully followed and all safety precautions are obeyed.

• Do not operate the Maximum BX near people.

Spectators should be behind the driver or at a safe distance away from the vehicle.

• The engine and exhaust system produces quite a bit of noise. If you are disturbed by the amount of noise this buggy produces, wear ear protection such as earplugs. Do not run this vehicle when or where it can disturb

others.

• The engine and exhaust system can become very hot. Avoid touching any of these parts during use and until they have cooled down.

• Model engine fuel is poisonous. Make sure you read and follow all of the precautions on the fuel container. Keep fuel out of the reach of children.

• Model engine fuel is flammable and when ignited has a flame that is difficult to see. Avoid sparks, flames, smoking, or any other ignition source when fuel is near.

• The engine emits carbon dioxide just like real cars. Do not operate this model indoors.

• Before turning on the transmitter, make sure that no one else is on your frequency.

• Avoid working over a deep pile carpet. If you drop a small part or screw, it will be difficult to find.

• Place a mat or towel over your work surface. This will prevent parts from rolling off and will protect the work surface.

• Avoid running the buggy in cold weather. The plastic and metal parts can become brittle at low temperatures. In addition, grease and oil become thick, causing premature wear and poor performance.

• Test fit all parts before attaching them permanently.

We have engineered the Maximum BX to take the rough and tumble abuse that makes R/C fun. We are so confident of the quality and durability of the Stress-Tech™plastic parts that we will replace any Stress-Tech plastic part you break during the first 6 months you own the buggy. Just send in the part to us and we will send you a Free replacement. Please see the Maximum BX parts list for the items covered under the Stress-Tech guarantee.

To receive your free replacement part please send the following to the Hobby Services address listed on the cover of this manual:

• The broken part must be included.

• The part number and description of the broken part.

• Dated copy of your invoice or purchase receipt.

• Your name, phone number and shipping address.

Repair service is available anytime.

• After the 90 day warranty, you can still have your Maximum BX repaired for a small charge by the experts at DuraTrax’s authorized repair facility, Hobby Services, at the address listed on the cover of this manual.

REPAIR SERVICE

STRESS-TECH™PARTS GUARANTEE

HELPFUL HINTS

SAFETY PRECAUTIONS

INTRODUCTION

TABLE OF CONTENTS

To speed up the repair process, please follow the instructions listed below.

1. Under most circumstances return the ENTIRE system: buggy and radio. The exception would be sending in a Stress-Tech part. See the instructions under Stress-Tech Guarantee.

2. Make sure the transmitter is turned off, all batteries are removed, and fuel is drained from the tank.

3. Send written instructions which include: a list of all items returned, a THOROUGH explanation of the problem and the service needed, and your phone number during the day. If you expect the repair to be covered under warranty, be sure to include a proof of date of purchase (your store receipt or purchase invoice).

4. Also be sure to include your full return address.

All pictures, descriptions, and specifications found in this instruction manual are subject to change without notice. DuraTrax maintains no responsibility for inadvertent errors in this manual.

Do not use too much force when tightening self-tapping screws into plastic. Overtightening will cause the threads in the plastic to strip. We recommend that you stop turning a self-tapping screw when you feel some resistance as the head of the screw comes in contact with the plastic. Avoid using powered screwdrivers when assembling this kit. They tend to overtighten the screws. Do not use thread locking compound on any self-tapping screws. The thread locking compound may damage the plastic. IMPORTANT: Use thread lock on any fastener that is threaded into metal or fastened with a nut. Vibration from the engine will cause the screws to loosen if thread locking compound is not used.

The illustration above shows how to identify the types of screws used throughout this instruction manual.

To operate the Maximum BX these items are required:

• Glow plug starter (Hobbico®Hot-Shot™-HCAR2505)

• Fuel bottle (DuraTrax Kwik-Pit™Bottle - DTXP0125)

• Fuel (DuraTrax Red Alert™fuel - DTXP0520)

• Air filter oil

• Tie straps

• Hobby knife with #11 blade (HCAR0105)

• Glow plug wrench (DTXR1170)

• It is also helpful to have a couple of extra glow plugs on hand. We recommend the O.S®. #A3 plug

(OSMG2690)

(All of these items are available in a Nitro Starter Pack from DuraTrax - DTXP0200).

For the Pre-Built version of the Maximum BX, you will also need:

• 2-channel radio with (2) standard servos.

•

(12) “AA” batteries - (4) for the receiver and (8) for the transmitter.

• Small bottle of thread locking compound (GPMR6060).

To assemble the Pre-Built version (DTXC0055), you will need the following tools:

• Phillips head screwdriver

• Flat blade screwdriver

• Needle-nose pliers

• Wire cutters

• Hobby knife (HCAR0105), #11 blades (HCAR0211)

TOOLS YOU WILL NEED

REQUIRED ITEMS FOR COMPLETION

SCREW INFORMATION

SPECIFICATION & DESCRIPTION CHANGES

M3x14

M3x14 Screw

3mm

14mm

Self-Tapping

Screw

3mm

14mm

❏ Step 1. Remove the transmitter and buggy from the

box.

❏ Step 2. Remove the twist-tie from the receiver

antenna. (The receiver antenna looks like a bundled thin wire that is attached to the receiver.) Thread the receiver antenna underneath and through the hole in the radio plate next to the receiver switch.

❏ Step 3. Remove the antenna tube from the parts

bag. Thread the receiver antenna through the antenna tube. The antenna will be longer than the antenna tube. DO NOT COIL OR CUT THE ANTENNA. Press fit the antenna tube through the hole in the radio plate. Use a small piece of tape to secure the end of the receiver antenna to the antenna tube. TIP: Run the antenna through your fingers to straighten out kinks before running through the antenna tube.

❏ Step 4. Remove the air filter and tie strap from the

parts bag. Thoroughly soak the air filter foam with some oil (not

included) and then squeeze out the excess

oil. A light

machine oil (like 3-IN-ONE™) will work well. Special oils made for air filters are also available in most hobby and motorcycle shops. Place the air filter onto the carburetor and secure it in place with the tie strap. Cut off the excess part of the strap.

❏ Step 5. Remove the four screws from the top of the

radio plate and remove the receiver battery holder.

❏ Step 6. Place 4 “AA” batteries into the battery holder.

Pay attention to the polarity on the batteries. The bottom (negative) of the batteries should connect with the springs in the battery holders.

❏ Step 7. Re-install the receiver battery holder under

the radio plate. Make sure that the receiver switch is in the off position. Plug the connector on the receiver

FINISHING THE RTR VERSION

battery into the socket on the receiver switch. Tuck the wires between the servo and receiver battery so they will not get caught on anything.

❏ Step 8. Remove the transmitter antenna from the

holder and screw it into the hole on top of the transmitter.

❏ Step 9. Slide open the battery door on the bottom of

the transmitter and remove the transmitter battery holder.

Place 8 “AA” batteries into the holder in the configuration molded into the plastic on the battery holder. Re-install the transmitter battery holder into the transmitter and re-install the battery door.

❏ Step 10. Turn on the transmitter using the switch on

the back (see the photo with Step 8), The green light on the side of the transmitter should light up. If there is no light on, turn the transmitter off and check to ensure that the battery holder is making contact with the copper contacts on the inside of the battery compartment. Make sure the batteries are installed correctly. Turn the transmitter on and check for the green indicator light. If the green light appears, turn off the transmitter.

❏ Step 11. Remove the plastic from the outside of the

body. Apply the decals if desired.

❏ Step 12. Remove the body clips from the

parts bag.

Place the body on the body mounts. On

each body

mount place a body clip.

Congratulations, you have completed preparations! Before running your new buggy, please take the time to carefully read the instructions and watch the video before running and breaking-in the engine. Make sure you follow the safety precautions and most of all...HAVE FUN!

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