Reelmaster 7000
Page 5 -- 31
Electrical System
Start Relay
The start relay is located at the power center behind the
operator seat (Fig. 42). This relay is attached to the wire
harness with a five (5) wire connector (Fig. 43).
The start relay is used to provide current to the engine
starter motor when energized by the TEC controller. The
TEC controls and monitors the operation of the start
relay.
Testing
1. Park machine on a level surface, lower cutting units,
stop engine, engage parking brake and remove key
from the ignition switch.
2. To make sure that machine operation does not occur
unexpectedly, disconnect negative (--) cable from bat-
tery and then disconnect positive (+) cable from battery
(see Battery Service in the Service and Repairs section
of this chapter).
3. Remove cover from power center and locate start
relay.
4. Disconnect wire harness connector from relay. Re-
move relay from mounting bracket for testing.
NOTE:
Prior to taking small resistance readings with a
digital multimeter, short the meter test leads together.
The meter will display a small resistance value (usually
0.5 ohms or less). This resistance is due to the internal
resistance of the meter and test leads. Subtract this val-
ue from from the measured value of the component you
are testing.
5. Using a multimeter, verify that coil resistance be-
tween terminals 85 and 86 is from 71 to 88 ohms.
6. Connect multimeter (ohms setting) leads to relay ter-
minals 30 and 87. Ground terminal 86 and apply +12
VDC to terminal 85. The relay should make and break
continuity between terminals 30 and 87 as +12 VDC is
applied and removed from terminal 85.
7. Disconnect voltage from terminal 85 and multimeter
lead from terminal 87.
8. Connect multimeter (ohms setting) leads to relay ter-
minals 30 and 87A. Apply +12 VDC to terminal 85. The
relay should make and break continuity between termi-
nals 30 and 87A as +12 VDC is applied and removed
from terminal 85.
9. Disconnect voltage and multimeter test leads from
the relay terminals.
10.Secure relay to mounting bracket and connect wire
harness connector to relay. Install cover to power center.
11.Connect positive (+) cable to battery and then con-
nect negative (--) cable to battery (see Battery Service
in the Service and Repairs section of this chapter).
1. Lock nut
2. Main power relay
3. Glow relay
4. Start relay
5. Flange head screw
6. Mounting bracket
Figure 42
2
3
4
5
1
1
5
6
Figure 43
86
85
87A
87
30
2
1
3
4
1. Coil terminal
2. Common terminal
3. Normally closed term.
4. Normally open terminal
1
Electrical System
Summary of Contents for Reelmaster 7000
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