Reelmaster 7000
Page 5 -- 30
Electrical System
Glow and Main Power Relays
The glow and main power relays are located at the pow-
er center behind the operator seat (Fig. 40). These re-
lays are attached to the wire harness with a four (4) wire
connector (Fig. 41).
The glow relay is used to provide current to the engine
glow plugs when energized by the TEC controller. The
TEC controls and monitors the operation of the glow
relay.
The main power relay is used to provide current to the
TEC controllers and most of the fuse protected circuits
(headlights, operator seat, power point and optional
electric equipment). When the ignition switch is in the
ON or START position, the main power relay is ener-
gized.
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 relay to
be tested.
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 86 and 85 is approximately 72 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 and test leads from the relay ter-
minals.
8. Secure relay to mounting bracket and connect wire
harness connector to relay. Install cover to power center.
9. 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 40
2
3
4
5
1
1
5
6
Figure 41
86
87
85
30
85
86
87
30
Summary of Contents for Reelmaster 7000
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Page 312: ...Page 9 8 Reelmaster 7000 Seat and Console Wire Harness ...
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