RTMB:Service

From The Currie Tech Dealer Wiki

Most RTMB service follows the same procedures as RMB service

For suggested troubleshooting procedures, see RTMB:Troubleshooting procedures

For service relating to brakes, throttles, and other non-specific components, see Non-Specific Bicycle Components

Wiring diagram

For the Path, please see Wiring Diagrams#2012

2009 RTMB with Currie Drive motor

20010 RTMB with hub motor. Please see the note below regarding battery fuses, as they are only included in certain older models.

These images are for reference only; your bicycle's wiring may differ.

Please note that newer RTMB battery packs do not have internal fuses. 24V Battery packs from Phylion have an internal 5A and 20A fuse, battery packs from HTE do not have internal fuses. No 36V RTMB batteries use internal fuses. Please call Currie Technologies customer service before opening an RTMB battery pack to preserve your warranty.

Please see File:RTMB Types and Serial Numbers rev01.pdf for more information on distinguishing between Phylion and HTE packs.

RTMB Battery Pack

Testing equipment required:

• DMM
• Probes or TL-WR-006 (24V) or TL-WR-009 (36V)

Battery voltage check

When fully charged, the 24V RTMB battery pack should measure at about 28-29 volts. The 36V battery pack should read about 41 volts. Immediately after charging, the voltage reading may be higher; let the battery sit off the charger for about 15 minutes before taking a voltage reading. Failure of the battery to charge to the expected maximum voltage may indicate that the pack has reached the end of its useful life.

Charger-port reading

Please note, these instructions also apply to the 36V RTMB battery pack used on the Zuma, however you must use TL-WR-009 instead of probes, to reduce the risk of damaging the charger port.

1. Locate the charger port on RTMB battery pack, located on the rear of the pack, next to the reflector.
2. Notice that the charger port pins are labeled 1,2 and 3.
   • Pin 1 = Positive
   • Pin 2 = Ground
   • Pin 3 = not used for this application

Instructions using probes (24V only)

1. Insert the Red probe into the #1 pin and the Black probe into the #2 pin.
2. Getting any reading at all shows that the wiring is properly connected and the batteries are able to receive a charge. If no reading is shown on the DMM than the internal wiring may have become disconnected, the fuse may be bad (only applicable to older packs) or the charger port has become damaged. Note the reading on the DMM. For this pack (24V RTMB Li-Ion) any reading around +29.0V indicates a fully charged battery. Any reading below that indicates that the battery pack needs to be charged for 6 hours regardless of what the indicator LED on the charger shows. Failure of the battery to charge to the expected maximum voltage may indicate that the pack has reached the end of its useful life.

Instructions using wiring adaptors (36V)

1. Insert the plug from the DMM into the charger port, then take a voltage reading.

Terminal reading

1. Turn the battery pack over and locate the four output terminals (slots) on the bike-facing side of the battery pack.
2. Touch a probe to each outermost terminal. Getting any reading at all shows that the wiring is properly connected and the batteries are able to receive a charge. If no reading is shown on the DMM than the internal wiring may have become disconnected, the fuse may be bad (only applicable to older packs) or the charger port has become damaged. Note the reading on the DMM. For this pack (24V RTMB Li-Ion) any reading around +29.0V indicates a fully charged battery. Any reading below that indicates that the battery pack needs to be charged for 6 hours regardless of what the indicator LED on the charger shows. Failure of the battery to charge to the expected maximum voltage may indicate that the pack has reached the end of its useful life.

Battery fuse check

Please note that newer RTMB battery packs do not have internal fuses. 24V Battery packs from Phylion have an internal 5A and 20A fuse, battery packs from HTE do not have internal fuses. No 36V RTMB batteries use internal fuses. Please call Currie Technologies customer service before opening an RTMB battery pack to preserve your warranty.

Please see File:RTMB Types and Serial Numbers rev01.pdf for more information on distinguishing between Phylion and HTE packs.

If you are servicing a pack that does have internal fuses, you can access them by removing the front and rear plastic caps (4 bolts each). see [[1]] for testing

Replacing a controller

While replacing a controller generally only means that you need to unplug the old and plug in the new, there are some things you should note on RTMB bicycles:

• The 4-prong battery connector needs to be oriented correctly to avoid reverse polarity. The side of the connector with red wires should match the + output terminal of the battery; the black wire side should match the - battery output terminal. The battery output terminals have in-molded + and - signs.

• It is possible to switch the plugs going to the throttle and motor Hall sensors, as they both use 5-pin female connectors from the controller. If you do this with the battery plugged in, it is possible to damage both the controller and the wheel! The easiest way to make sure you're doing things correctly is to look at the label on the wires coming from the controller, and double-checking your work before plugging anything in.