JLG 3246ES Service Manual - Manual (Page 74)

SECTION 3 - CHASSIS & SCISSOR ARMS
3-38 – JLG Lift – 3121166
3.8 POWER MODULE - SEVCON
The Sevcon Power Module, P/N-1600346 was replaced
by the ZAPI Power Module (See Figure 3-33.) on
machines built starting in mid year 2010. The Power Module is located at the front of the machine
as shown in Figure 3-32., Sevcon Power Module Loca-
tion. Use the following instructions when replacing the
Power Module.
1. Make sure power to the machine is turned off and
the batteries are disconnected.
NOTE: Note the wire terminal locations when removing the
old Power Module.
2. Disconnect all wires from the old Power Module
and remove from the machine.
3. Before bolting the Power Module on, using a V-
notch trowel, apply a layer of heat transfer grease
to the back of the new Power Module.
4. Be sure that the terminals are oriented as shown.
5. After installing the new Power Module, begin con-
necting the wires back to the controller.
6. Torque the M6 terminal bolts to 5 ft-lb. (7 Nm).
Torque the M8 terminal bolts to 7 ft-lb. (10Nm).
7. After all connections to the Power Module are
made, the battery can be reconnected.
F 1
M 2
P
M 1 B + B -
F 2
MACHINE FRONT
SEVCON POWER MODULE
Figure 3-32. Sevcon Power Module Location
Table 3-1. Sevcon Power Module Specs
Operating Voltage
(Pin 1 and B+)
14.5 to 40 VDC
Maximum Current Limits:
Armature
Field
Pump
350 A
40 A
150 A
Standby Current 150 mA
Temperature Range:
Operating
Storage
Thermal Limit
-30°C to 40°C
-40°C to 70°C
75°C to 90°C
Switching Frequency 16 kHz