JLG 3248RS/10RS Service Manual - Manual (Page 48)

SECTION 3 - CHASSIS & SCISSOR ARMS
3-16 – JLG Lift – 3121273
3.12 POWER CONTROL MODULE - ZAPI
The power module is located inside rear machine cover
at the left rear of the machine, as shown in Figure 3-20.,
ZAPI Power Module Location and Orientation (All models).
Use the following instructions when replacing the power
module.
1. Turn machine power off and disconnect the batter-
ies.
2. Locate and remove the rear cover from the machine.
3. Tag and note the wire terminal locations before
removing the power module, also see Figure 3-21.
4. Disconnect all wire connectors and cables from the
power module and remove it from the machine.
NOTE: The power module for the RS Scissors is installed on
the machine in the upside down position. This is the
correct mounting position.
5. When installing the power module, be sure that the
terminals are oriented as shown in Figure 3-20.
6. After installing the new power module, begin con-
necting the wire connectors/cables to the module.
(See Table 3-4 and Figure 3-21.)
7. Torque all terminal bolts to torque specifications as
shown on the front of the module. Overtightening
could damage the module.
8. After all connections to the power module are made,
the batteries can be reconnected.
9. Power up machine and check for normal machine
operation.
10. Re-install the rear machine cover.
Table 3-3. ZAPI Power Module Specifications
Operating Voltage ( B+) 14.5 to 40 VDC
Maximum Current Limits:
Armature
Field
Pump
Integral Main Fuse
300 A
40 A
180 A
250 A
Standby Current 150 mA
Temperature Range:
Operating
Storage
Thermal Limit
-40°C to 75°C
-40°C to 125°C
75°C to 90°C
Switching Frequency 16 kHz
Table 3-4. Module Terminal Functions
+ BF1 Controller to Main Power Contactor
+ BF2 Left and Right Positive Armature
+ B Positive Pump Connection
– B Controller to Battery Negative
– T Left and Right Negative Armature
– P Negative Pump Connection
F1 To Motor Fields Wired in Series
F2 To Motor Fields Wired in Series
Figure 3-20. ZAPI Power Module Location and Orientation (All models)