Service Manual

Reelmaster 7000--D Page 6 -- 39 Electrical System
The InfoCenter display should be used to check inputs
and outputs of the TEC (see Using the InfoCenter Dis-
play to Test TEC Inputs and Outputs in this chapter).
A fifty (50) pin wire h arness connector attaches to the
controller. The connection terminal functions for the
TEC and the wire harness connector pins are identified
in in Figure 33.The layout of the wire harness connect-
ors that plug into the TEC is shown in Figure 34.
IMPORTANT: When testing for wire harness con-
tinuity at the conn ector fo r the TEC, take care to not
damage the connector pins with multimeter test
leads. If connector pins are enlarged or damaged
during testing, connector repair may be necessary
for proper machine operation.
The machine electrical schematic and wire harness
drawings in Chapter 10 -- Foldout Drawings can be used
to identify possible circuit problems between the con-
troller and the input or output devices (e.g. switches and
solenoid coils).
Because of the solid state circuitry built into the TEC,
there is no method to test the controller directly. A con-
troller may be damaged if an attempt is made to test it
with an electrical test device (e.g. digital multimeter or
test light).
NOTE: The TEC used on the Reelmaster 7000--D is
programed for correct machine operation. If the TEC is
replaced for any reason, system software n eeds to be
reprogrammed by your Toro Distributor.
IMPORTANT: Before performing welding on the ma-
chine, disconnect both positive and negative bat-
tery cables from the battery, disconnect the wire
harness connector from the TEC and disconnect
the terminal connector from the alternator. Also,
disconnect and remove the engine ECU (Yanmar
diesel engines) before welding. These steps will
prevent damage to the machine electrical system
when welding.
Figure 32
1. TEC controller
2. Machine harness connector
3. Socket head screw
Figure 33
12V POWER
(7.5A FUSES)
12V LOGIC
IGNITION
SWITCH
INPUTS
DIGITAL
INPUTS
(OPEN/
ANALOG
INPUTS
POWER
(2 AMP FUSE)
COMM
PORT
CAN BUS
CLOSED)
OUTPUTS
(PWR 2)
GROUND
(VARIABLE)
OUTPUTS
(PWR 3)
OUTPUTS
(PWR 4)
+5 VOLTAGE
OUT
Figure 34
WIRE HARNESS CONNECTOR FOR TEC
1
11
21
31
41
30
20
10
40
50
NOTE TAB POSITION
If the wire harness connector is removed from the TEC
controller for any reason, tighten the harness connector
screw from 25 to 28 in--lb (2.8 to 3.2 N·m).
Electrical
System