Toro Reelmaster 5510 Series, Service Manual

Page: 449 / 662

Testing the Engine Relays with 5 Terminals (continued)
g228831
Figure 261
Start relay
g228832
Figure 262
Power and fuel pump relay
3. Using a multimeter (ohms setting), measure coil resistance between
terminals 85 and 86 ( Figure 261 or Figure 262 ). Resistance should be as
listed in table below.
Relay Coil Resistance
Start 81 to 99 ohms
Power or Fuel Pump 111 to 135 ohms
4. Connect multimeter (ohms setting) leads to relay terminals 30 and 87.
Ground terminal 86 and apply +12 VDC to terminal 85. The relay should
have continuity between terminals 30 and 87 as +12 VDC is applied to
terminal 85. The relay should not have continuity between terminals 30 and
87 as +12 VDC is removed from terminal 85.
5. Disconnect voltage from terminal 85 and multimeter lead from terminal 87.
Replace relay if testing determines that it is damaged.
6. Install relay into power center, install power center cover and lower hood
when relay testing is complete.
7. Connect multimeter (ohms setting) leads to relay terminals 30 and 87A.
Apply +12 VDC to terminal 85. The relay should not have continuity between
terminals 30 and 87A as +12 VDC is applied to terminal 85. The relay should
have continuity between terminals 30 and 87A as +12 VDC is removed from
terminal 85.
8. Disconnect voltage and multimeter leads from the relay terminals. Replace
relay if testing determines that it is damaged.
Reelmaster ® 5410/5510/5610 Series Page 7–93 Electrical System: Testing the Electrical Components
15216SL Rev C