Section 4 • Repair Procedures
4 - 38
S-80 • S-85 • S-80X
Part No. 122985
February 2012
Ground Controls
6-1
Control Relays
Relays used for single function switching are single
pole double throw (SPDT) relays.
How to Test a Single Pole Double
Throw Relay
Electrocution/burn hazard. Contact
with electrically charged circuits
could result in death or serious
injury. Remove all rings, watches
and other jewelry.
1 Tag and disconnect all the wiring from the relay
to be tested.
2 Connect the leads from an ohmmeter or
continuity tester to each terminal combination
and check for continuity. Terminals 85 and 86
represent the coil and should not be tested in
any other combination.
Test
Desired result
terminal 85 to 86 with resistor
75 to 85
terminal 87 to 87a and 30
no continuity
(infinite
terminal 87a to 30
continuity
(zero
)
3 Connect 12V DC to terminal 85 and a ground
wire to terminal 86, then test the following
terminal combinations.
Test
Desired result
terminal 87 to 87a and 30
no continuity
(infinite
terminal 87 to 30
continuity
(zero
)
terminal no. 87a - N.C.
terminal no. 85 - coil negative (-)
terminal no. 30 - common
terminal no. 86 - coil positive (+)
terminal no. 87 - N.O.
Control Relay Schematic
Summary of Contents for S-80
Page 1: ......
Page 6: ...February2012 S 80 S 85 S 80X PartNo 122985 This page intentionally left blank iv ...
Page 183: ...Section 6 Schematics February2012 6 5 6 6 Connector Pin Legend View 1 ...
Page 186: ...February2012 Section 6 Schematics 6 8 Connector Pin Legend View 2 6 7 ...
Page 223: ...Section 6 Schematics February2012 6 45 Electrical Schematic S 80X DeutzTD2011L04IModels 6 46 ...
Page 226: ...February2012 Section 6 Schematics 6 48 Electrical Schematic S 80X DeutzTD2011L04IModels 6 47 ...
Page 271: ...Section 6 Schematics February2012 6 93 Electrical Schematic S 80X Perkins804D 33Models 6 94 ...
Page 274: ...February2012 Section 6 Schematics 6 96 Electrical Schematic S 80X Perkins804D 33Models 6 95 ...
Page 331: ...Section 6 Schematics February2012 6 153 6 154 Continental TME27 Engine Harness ...
Page 334: ...February2012 Section 6 Schematics 6 156 Platform Level Cutout CTE Option 6 155 ...
Page 335: ...Section 6 Schematics February2012 6 157 Continental Options Schematic 6 158 ...
Page 338: ...February2012 Section 6 Schematics 6 160 Deutz and Perkins Options Schematic 6 159 ...
Page 339: ...Section 6 Schematics February2012 6 161 6 162 12 kW Hydraulic Generator Wiring Diagram ...
Page 342: ...February2012 Section 6 Schematics 6 164 6 163 12 kW Hydraulic Generator Electrical Schematic ...
Page 343: ...Section 6 Schematics February2012 6 165 Belt Driven Generator Option 6 166 ...
Page 346: ...February2012 Section 6 Schematics 6 168 Relay and Fuse Panel Legend 6 167 ...
Page 347: ...Section 6 Schematics February2012 6 169 6 170 Hydraulic Schematic 2WD Models ...
Page 350: ...February2012 Section 6 Schematics 6 172 Hydraulic Schematic 4WD Models 6 171 ...
Page 352: ...February2012 Section 6 Schematics 6 174 12 kW Hydraulic Generator Hydraulic Schematic 6 173 ...