Greensmaster 3250--D
Page 5 -- 13
Electrical System
Warning Light Cluster
Glow Plug Indicator Light
The glow plug indicator light should come on when the
ignitionswitchisplacedintheRUNpositionpriortoplac-
ingthe ignition switch in START. The lightshould stay lit
for approximately six (6) seconds while the ignition
switch is left in the RUN position.
High Temperature Warning Light
If the engine coolant temperature reaches 220
o
F
(105
o
C) (approximate), the high temperature warning
light will come on and the engine will shut down.
Totestthehightemperaturewarninglightandcircuitwir-
ing, turn ignition switch to the RUN position and ground
thewireattachedtohightemperaturewarningswitchlo-
cated on the engine water pump housing (see High
Temperature Warning Switch in this section). The high
temperature warning light should illuminate when the
wire is grounded.
Engine Oil Pressure Light
The engine oil pressure light should come on when the
ignitionswitch isinthe RUNpositionwiththeenginenot
running. Also, it should illuminate with the engine run-
ning if the engine oil pressure drops to an unsafe level.
IMPORTANT: If the oil pressure indicator light is il-
luminated with the engine running, shut off the en-
gine immediately.
Totesttheoilpressurelightandcircuitwiring,groundthe
wire attached to oil pressure switch located on the en-
gine near the oil filter. Turn ignition switch to the RUN
position;theengineoilpressurelightshouldc omeonin-
dicating correct operation of the indicator light and cir-
cuit wiring.
Charge Indicator Light
Thechargeindicatorlightshouldcomeonwhentheigni-
tionswitchisintheRUNpositionwiththeenginenotrun-
ning. Also, it should illuminate w ith an improperly
operating charging circuit while the engine is running.
Testing Indicator Lights
1. Remove console cover from console assembly to
gainaccesstoindicatorlights(seeControlC onsoleDis-
assemblyin theServiceandRepairssection ofC hapter
7 -- Chassis).
2. Apply 12 VDC to terminals 1A and 2A (Fig. 11) and
ground terminals 1B and 2B (Fig. 11).
3. Both indicator lights should illuminate.
1. Glow plug indicator
2. High temperature
3. Engine oil pressure
4. Charge indicator
Figure 10
1
3
2
4
Figure 11
1. Glow plug indicator
2. High temperature
3. Engine oil pressure
4. Charge indicator
5. Indicator light front
6. Indicator light back
1A (+)
2A (+)2B (--)
1B (--)
4
3
5
2
1
6
Electrical
System