Figure 2. Drive Unit Compartment Cover
Legend for Figure 2
1. DRIVE UNIT COMPARTMENT COVER
2. RETAINER TABS
3. GRIP SLOT
4. FRAME
Special Precautions
WARNING
The capacitor in the transistor controller can hold
an electrical charge after the battery is disconnec-
ted. To prevent electrical shock and personal in-
jury, discharge the capacitor before inspecting or
repairing any component. Wear safety glasses.
Make certain the battery has been disconnected.
DO NOT use a screwdriver to discharge the trac-
tion motor controller.
WARNING
To avoid personal injury and prevent electrical
shock, perform the following steps before per-
forming any troubleshooting or adjustments, and
connecting or disconnecting a handset or PC.
CAUTION
To avoid controller damage, always disconnect
the battery. Discharge the capacitor and never put
power to the controller with any power wire dis-
connected.
Never short any controller terminal or motor ter-
minal to battery. Make sure to use proper proce-
dures when servicing the controller.
1.
Turn the key switch to the
OFF
position and discon-
nect the battery.
2.
Remove the drive unit compartment cover to access
the controller. See Accessing the Drive Unit Compart-
ment.
3.
Discharge the capacitors in the controllers by connect-
ing a 200-ohm, 2-watt resistor across the controller's B
+ and B− terminals using insulated jumper wires. See
Figure 3.
DO NOT
short across the motor controller
terminals with a screwdriver or jumper wire. Remove
the 200-ohm, 2-watt resistor before reconnecting the
battery.
Special Precautions
1600 SRM 1637
2
