No Power To Engine Start Switch.
Remove two shoulder screws, washers, and vandal guard from box assembly.
Remove three screws and washers and lift box assembly up from operator station.
Touch positive (+) probe of multimeter to BAT terminal (wire 105-BR) of engine start switch.
Touch negative (-) probe of multimeter to good ground.
If 24 to 28 VDC are not present at BAT terminal (wire 105-BR) and KEY START fuse is good,
repair or replace wiring and connectors to KEY START fuse holder (WP 0195).
Figure 4. Engine Start Switch Wiring.