Standard Bearer Machines RUNGU Electric Juggernaut Mid-Drive Owner'S Manual Download

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V1.0

RUNGU Electric Juggernaut Mid-Drive Version (MDV) User Manual

–

2018 model year

Unpacking and Assembly Instructions

Warning: Failure to follow these instructions may lead to incomplete or faulty assembly that can
result in accidental rider injury or death.

The MDV comes in a cardboard carton. After you have removed the binding straps, remove the
top cover on the front of the MDV. If you intend to ship or return the MDV, please keep all
packing materials.

If you have purchased a Rear Rack or Range Doubler, remove the rack and place it to one side.

Remove the accessory box containing Quick Release Skewers, AC battery charger, tools, USB
document drive, keys and pedals.

Remove the two wheels from the carton and place them aside carefully to avoid damaging the
disc brake rotors.

Lift the frame and rear wheel from the carton and place the assembly on the floor gently so that
it stands upright as it was in the carton.

CAUTION: THE MDV FRAME AND REAR WHEEL WEIGH 68 LBS (31 KG). USE TWO (2) PEOPLE TO
REMOVE THE MDV FROM THE PACKAGING TO AVOID INJURY

Remove the packaging from the front forks steering assembly and handlebars.

Accessory Box. May be
located elsewhere
inside the carton

Summary of Contents for RUNGU Electric Juggernaut Mid-Drive

Page 1: ...th barely any assist to full power intended for use off road only The power settings are discussed in the power settings section below Note US Federal Law mandates a 750W 20 MPH limit for riding an e bike on public roads without a license Please check with your local government to ensure you follow all local laws and ordinances Standard Bearer Machines are not liable for those who choose not to fo...

Page 2: ...g a New MDV 24 Charging Your Main Battery 24 Charging the Battery in your Optional Range Doubler 28 Before your first ride Safety Check 32 Using the Motor and Light Control keypad and Understanding the Display 34 Turning on the MDV 34 Reading the MDV Display 34 Riding the MDV 37 MDV Operation Cautions 37 Using the Front Suspension 38 Using the parking brake switch 38 Using Gear Shifters 38 Riding ...

Page 3: ... Drive Version MDV User Manual 2018 model year Copyright 2018 Standard Bearer Machines LLC 3 Getting the Stated Range out of Your System 44 Default Display Settings 44 Securing your MDV 44 Troubleshooting 45 Getting more information 47 ...

Page 4: ...id Drive Version MDV User Manual 2018 model year Copyright 2018 Standard Bearer Machines LLC 4 Parts identification The following images show the names of various components on the MDV Figure 1 Left Side View Figure 2 Right Side View ...

Page 5: ...V1 0 RUNGU Electric Juggernaut Mid Drive Version MDV User Manual 2018 model year Copyright 2018 Standard Bearer Machines LLC 5 Figure 3 Steering assembly view Figure 4 Parking Brake View ...

Page 6: ...o incomplete or faulty assembly that can result in accidental rider injury or death Before you ride and make new tracks please follow the assembly instructions carefully The team at Standard Bearer Machines recommends that you have the assembly performed by a qualified bike mechanic Tools required 5mm Hex wrench 6mm Hex wrench Tire inflation pump presta valve Wire cutters or scissors to remove pac...

Page 7: ...ve purchased a Rear Rack or Range Doubler remove the rack and place it to one side 3 Remove the accessory box containing Quick Release Skewers AC battery charger tools USB document drive keys and pedals 4 Remove the two wheels from the carton and place them aside carefully to avoid damaging the disc brake rotors 5 Lift the frame and rear wheel from the carton and place the assembly on the floor ge...

Page 8: ...t Mid Drive Version MDV User Manual 2018 model year Copyright 2018 Standard Bearer Machines LLC 8 7 Use the 5mm hex wrench to loosen the handlebar retention screws as shown below 8 Slide the left handlebar into the handle bar clamp ...

Page 9: ...ht 2018 Standard Bearer Machines LLC 9 9 Insert the handlebar so that it extends at least 40 mm past the inside of the stem 10 Fasten but do not tighten handlebar retention screws 11 Remove the right handlebar retention screws allowing the right side linkage arm to move away from the stem ...

Page 10: ...ines LLC 10 12 Place the right side handle bar such that the display support bridges the stem Take care to make sure the display and control cables are behind the stem as shown below 13 Then replace the right side linkage arm and the handlebar retention screws Fasten but do not tighten the handlebar retention screws ...

Page 11: ... can still rotate each handlebar and slide the handlebar inside the stem 16 Rotate the handlebars so that each side aligns and they fit best for you Note for additional adjustments after your first ride refer to the handlebar adjustment section later in this document 17 When you have aligned each handlebar use a pattern of tightening the upper handlebar retention screw and then bottom screw instea...

Page 12: ...ssory box to remove the two quick release skewers from the packaging 19 Select which wheel will be the right side wheel and the left side wheel Often the wheels will be labeled L or R This means that the brakes have been adjusted differently for each wheel use the labels to guide which wheel mounts on which side Note The left side is considered the side with the brake rotors The right side has the...

Page 13: ...t Mid Drive Version MDV User Manual 2018 model year Copyright 2018 Standard Bearer Machines LLC 13 23 Mount the wheel to the left fork as shown in the two pictures below Be careful to slide the brake rotor between the disc caliper ...

Page 14: ...to clamp when the lever points away from the wheel at a right angle Warning make sure to tighten the quick release in the fork so that it cannot fall out of the fork failure to adequately tighten the quick release can result in accidental rider injury or death 26 Place the MDV aside while performing the next two assembly steps 27 Unscrew the retention nut from one of the quick release skewers remo...

Page 15: ...lose the quick release lever once the wheel is mounted in the fork As a guideline the retention nut should begin to clamp when the lever points away from the wheel at a right angle Warning make sure to tighten the quick release in the fork so that it cannot fall out of the fork failure to adequately tighten the quick release can result in accidental rider injury or death 31 Remove the pedals from ...

Page 16: ...2018 Standard Bearer Machines LLC 16 32 The left pedal is threaded backwards so thread the shaft into the crank arm in a counterclockwise motion as depicted below Caution Do not force the threading of the pedal onto the crankset Warranty does not cover replacement cranks for stripped threads ...

Page 17: ...Use a 6mm Hex wrench to tighten the pedal 27 Install the right pedal and finger tighten the pedal clockwise the right pedal is marked with an R as shown below Caution Do not force the threading of the pedal onto the crankset Warranty does not cover replacement cranks for stripped threads 28 Use a 6mm Hex wrench to tighten the pedal ...

Page 18: ...tion will prevent the tire from seating on the tire and prevent you from riding the MDV Over inflation more than 15 PSI 103 KPa may result in tire blow out while riding 30 Loosen the Seat Post Clamp by opening the lever Insert the seat post and adjust to the height that suits you then tighten the clamp by closing the lever Note Failure to tighten the seat post can result in discomfort while riding...

Page 19: ...ungu USB document drive that ships with the Electric Juggernaut to new customers or online at this link2 WARNING The Electric Juggernaut has a tie rod that connects the two front forks DO NOT USE the tie rod to lift the MDV The steering uses the tie rod as a hard stop so the forks don t rub against the front wheels Grasping the tie rod when lifting WILL RESULT IN A PINCH TO THE HAND AND FINGERS TH...

Page 20: ... chemistry due to the combination of power safety performance and life span compared to the other options available Each battery has a Battery Management System BMS built into the battery to protect you and the Rungu from dangerous battery faults Lithium cells have a lot of energy stored in a small package There is always a possibility a battery cell fault can release this energy and can cause fir...

Page 21: ...ower while riding your Rungu STOP IMMEDIATELY Turn off the MDV and inspect your battery system Check for a burnt smell and inspect there are no melted or shorted wires Shorted wires or a burnt smell indicate a shorted or failed BMS stop using Rungu and contact us as soon as possible If you notice that your battery is swollen damaged or smoking contact Rungu Support immediately so we can diagnose t...

Page 22: ...charge charging or excessive mechanical abuse Specifically mechanical abuse in the form of excessive shock or vibration can result in case deformation crushing and damage to the electrode materials Warning Not guarding against these conditions may result in a hot cell or a battery pack that could vent or explode Only trained and equipped emergency responders should respond to an incident with hot ...

Page 23: ...from a safe distance using a non contact thermometer or thermal imager If temperature monitoring equipment is not available keep the area evacuated and secure and do not handle the cell battery for at least 24 hours If the battery cools continue to monitor until it reaches ambient temperature Remove the battery from the area once it is cool Dispose of the cell in accordance with waste or recycling...

Page 24: ... some pressure to retain the Battery Cover while turning the key Caution The battery has padding inside of the Main Battery Case to minimize shock and vibration turning the key may require that you overcome the pressure from this padding Do not remove the padding 3 Remove the Main Battery Case cover and put it aside Note At this point you can charge the battery inside the Main Battery Case or remo...

Page 25: ...nnector is keyed so there is only one way that the plug will fit WARNING ONLY USE THIS CONNECTOR TO CHARGE Even though these batteries have built in Battery Management Systems a BMS fault or failure may occur If you EVER notice a battery puffing stop charging the battery place it outside on concrete a safe distance away and monitor it closely from a safe distance to make sure all is O K Give us a ...

Page 26: ...ended use it will always be better to get a full charge so that you do not deplete your batteries too far when you ride It is better in the long run to use less than 80 capacity of the battery when riding if possible Caution Refer to the document Battery Care and Long Term Storage for complete instructions on how to maximize the life of your batteries Warning If you fully charge the battery discon...

Page 27: ...place the cover by fitting the two tabs into the slots at the bottom of the case 10 Push the cover closed making sure not to pinch any cables or battery padding 11 Use the same technique as in step 1 to hold the cover in place while using the key to close the latch 12 Remove the key from the latch and put it away to avoid losing it ...

Page 28: ...ge Doubler to minimize shock and vibration turning the key may require that you overcome the pressure from this padding Do not remove the padding from the battery 3 Open the door to expose the battery and cabling inside the Range Doubler Note At this point you can charge the battery inside the Range Doubler or remove the battery for storage or charging elsewhere To do so lift the battery up from t...

Page 29: ...t outside on concrete a safe distance away and monitor it closely from a safe distance to make sure all is O K Give us a call email us immediately if a battery begins to puff and contact Rungu for guidance on the next steps Do not attempt to use a battery after it has swelled and expanded or puffed significantly 6 Plug the battery charger into an AC wall outlet Warning DO NOT LEAVE CHARGER PLUGGED...

Page 30: ... 80 capacity of the battery when riding if possible Caution Refer to the document Battery Care and Long Term Storage for complete instructions on how to maximize the life of your batteries 8 IF YOU HAVE REMOVED the battery for charging disconnect the battery from the charger reconnect the large connector to the motor connector inside the Range Doubler and replace the battery inside the Range Doubl...

Page 31: ...t 2018 Standard Bearer Machines LLC 31 10 Push the cover closed making sure not to pinch any cables or battery padding 11 Use the same technique as in step 1 to hold the cover in place while using the key to close the latch 12 Remove the key from the latch and put it away to avoid losing it ...

Page 32: ...he stem clamps to the fork Repeat this step for the right wheel 3 Make sure each wheel is fully inserted into its dropout Look carefully at both sides of the quick release on each wheel and make sure that the quick release skewer ends are seated inside the recesses on the bottom of the forks for each fork and inside the slot in the frame of the rear dropout for the rear wheel If they are not STOP ...

Page 33: ...le moves STOP Open the seat post clamp and tighten the clamping mechanism before adjusting saddle height and orientation then clamp it again 10 Make sure your tires are inflated to the right pressure for the terrain you re going to ride Use a tire pressure gauge to check the pressure of your tires If the tire pressure is below 4 PSI or above 15 PSI 103 KPa STOP Inflate the tires to be 5 PSI 34 KPa...

Page 34: ...ves you enough information to operate your MDV For detailed instructions refer to the document Rungu Electric Juggernaut Mid drive Version Display User Guide which is available on your USB document drive Turning on the MDV Press and hold the on off switch for one to two seconds The Display will show a start up screen and then show the dashboard in red Rungu defaults the MDV to Sport Mode Reading t...

Page 35: ... the center of the display appears a graphic representation of MDV speed and battery output power When riding the digits in the center will display your speed Depending on a display setting the speed appears in miles per hour or kilometers per hour When riding a red arc appears and extends clockwise to give a graphic indication of speed relative to maximum speed also a display setting On the right...

Page 36: ...idea In the lowest gear tenth the gear ratio is 42 36 The optional 30T chainring has a gear ratio of 30 36 For every rotation of the crank arms the rear wheel turns 1 2 times not so good for maintaining higher speeds but great for getting the torque out of the motor for hill climbs and loose ground Learn to use the gear shifter to adjust to terrain to take full advantage of each power level you ch...

Page 37: ...cruise over 16 mph This is a rule of thumb to prolong the life of your system 3 DO NOT operate in excessive heat over 100 degrees Fahrenheit for a prolonged period of time Doing so may result in excessive heat buildup and some components may shut down due to thermal protection 4 If you notice a decrease in performance or abnormal operation cease electrical operation immediately Failure to do so ma...

Page 38: ...ever in place which holds the rotor in place and prevents the MDV from moving when parked The parking brake is very useful when parking on angle REMEMBER to switch off the parking brake before riding NOTE Riding with the parking brake engaged produces significant wear on the brake pads leading to a decrease in brake pad life and stopping power Warranty DOES NOT cover replacement brake pads Using G...

Page 39: ...ur safety when riding the MDV 1 ALWAYS wear proper safety equipment 2 NEVER operate at speeds that exceed your ability to operate the MDV safely 3 ALWAYS know your surrounding and actively scan the terrain for obstacles 4 DO NOT wear loose fitting clothes or articles 5 NEVER ride with more than 1 rider 6 Suitable for riders 16 and older 7 Know your MDV and personal limits WARNING DO NOT RIDE AT NI...

Page 40: ...ime and this will allow you to put some extra charge in the battery and balance the cells Note You can purchase an outlet timer that switches the charger on every week for a period of 10 minutes and keep the charger connected to the battery In this situation the charger is only powered by AC when the outlet timer is on Prolonging the Life of your Battery Best Practices The Electric Juggernaut feat...

Page 41: ...eel and make sure that the quick release skewer ends are seated inside the recesses on the bottom of the forks for each fork and inside the slot in the frame of the rear dropout for the rear wheel If they are not STOP Unclamp the quick release reposition the wheel and re clamp the quick release to retain the wheel 3 Make sure each quick release skewer is clamping the wheel The quick releases shoul...

Page 42: ...nd seat are tightened With the seat post clamp tightened try to rotate the saddle If the saddle moves STOP Open the seat post clamp and tighten the clamping mechanism before adjusting saddle height and orientation then clamp it again 9 Make sure your tires are inflated to the right pressure for the terrain you re going to ride Use a tire pressure gauge to check the pressure of your tires If the ti...

Page 43: ...tric wheel often requires more attention due to the torque of the motor Spoke and wheel maintenance are part of a normal bicycle maintenance procedure and will be accelerated with an electric motor Do not take chances with the spokes and if you think they are loose chances are you are correct The spokes should all have the same tension If they are loose tighten them yourself or take it to your loc...

Page 44: ...lf Riding with a load greater than 176 lbs 80 kg also decreases the range If you stop and start on your ride traffic lights stop signs your range numbers decrease due to the accelerations If you are riding on hills through sand and snow or rough terrain you also decrease range To test your maximum range plan a flat circuit with no stops fully charge you battery and ride without pedaling 7th or 8th...

Page 45: ...w it will not charge This is a problem that occurs when you fully deplete the battery The BMS on the battery protects the battery from discharging any further and force shuts itself off Solution Reset your battery by opening removing it from the battery case and disconnecting the battery from the controller large yellow connectors and then reconnecting the battery In most cases this action is suff...

Page 46: ...net relative to the speed sensor The circular sections should line up and there should be a maximum distance of 1 8 3mm between the two as pictured below To test it realign the sensor and magnet lift the rear wheel and turn on the throttle The red light in the back of the sensor should flash every time the sensor detects the magnet Repeat the adjustments This may take several iterations to correct...

Page 47: ...on MDV User Manual 2018 model year Copyright 2018 Standard Bearer Machines LLC 47 Getting more information Thank you again for purchasing a Rungu MDV For further questions please consult the Technical Documentation page on the riderungu com website ...

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