How to Raise the Load Wheels
WARNING
Never raise the base arms any higher than
necessary to change the load wheels. Always
raise both base arms at the same time. Raising
the base arms too high can make the lift truck tip
over and cause damage or possible injury.
1.
Put blocks on both the front and back sides of
the drive tire to prevent movement of the lift
truck. Refer to Figure 3.
2.
Use an overhead lifting device and web sling
under the base arms at the mast to raise the
load wheels. Another lift truck can also be used
to raise the base arms. Make sure the overhead
lifting device and web sling or other lift truck
has a capacity of at least two-thirds (2/3) the
total weight of the lift truck including the
battery. See the nameplate for the lift truck
weight.
WARNING
DO NOT lift both ends at once.
3.
To raise the fork end of the lift truck, hook a lift
strap through each load wheel opening in the
top of each fork and lift together. See Figure 2.
Raise the outriggers only enough to suspend the
wheels. Install blocks under the outriggers at the
rear of the wheels to support the lift truck. See
Figure 3.
Special Precautions
DISCHARGING THE CAPACITOR
WARNING
Block each side of the truck under the drive unit
frame. Position blocks on both sides of the load
wheels. The blocks must prevent the lift truck
from falling and causing personal injury or prop-
erty damage.
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.
Discharge the capacitors in the controller by con-
necting a 200-ohm, 2-watt resistor across the con-
troller's B+ and B− terminals with insulated
jumper wires. DO NOT use a screwdriver to dis-
charge the traction motor controller. See Figure 4.
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 terminal to battery. Make sure to use proper
procedure when servicing the controller.
1.
Block the drive tire in front and back to prevent
unexpected movement. Refer to General in this
section.
2.
Turn the key switch to the OFF position and
disconnect the battery.
3.
Remove the drive unit compartment covers.
4.
Discharge the capacitor in the controllers by
connecting a 200-ohm, 2-watt resistor across
the controller's B+ and B− terminals. See Fig-
ure 4. DO NOT short across the motor control-
ler terminals with a screwdriver or jumper
wire.
5.
Remove the 200-ohm, 2-watt resistor before re-
connecting the battery.
8000 SRM 1379
Special Precautions
5
