SkyTrak 6036 Service Manual - Manual (Page 446)

Electrical System
9.94 Model 6036 Legacy
9.15.11 Engine Coolant High Temperature
Sender
The engine coolant high temperature sender (Fig. 9-89, 1)
is threaded into the engine block (2) and is connected to
the operator’s instrument cluster via the engine wiring
harness, bulkhead connector and cab wiring harness.
Figure 9-89 Engine Coolant Temperature Sender
When the engine coolant temperature exceeds normal
operating limits and rises above 210° F (99° C), the
sender closes contacts within the sending unit. The
operator’s instrument cluster indicator (Fig. 9 -90, 1)
illuminates.
When the engine coolant temperature is below 210° F
(99° C), the contacts within the sending unit open and the
instrument cluster indicator turns OFF. (Refer to Section
9.9.2, “Engine Coolant Temperature Warning Indicator
Troubleshooting.”)
Figure 9-90 Engine High Coolant Temperature Indicator
a. Engine Coolant High Temperature Sender Removal
1. Disconnect the negative (-) battery cable at the
negative battery terminal.
2. Unplug the engine coolant high temperature sender
connector (Fig. 9-89, 3) from the wiring harness
connector.
3. The sender (Fig. 9-89, 1) is threaded into the engine
block (2). Remove the sender.
b. Engine Coolant High Temperature Sender
Disassembly
DO NOT disassemble the sender. Replace a defective or
faulty sender.
c. Engine Coolant High Temperature Sender
Inspection and Replacement
Inspect the sender and the wiring harness connector ter-
minals for continuity. Replace a defective or faulty sender
with a new part.
d. Engine Coolant High Temperature Sender
Installation and Testing
1. Thread the engine coolant high temperature sender
(Fig. 9-89, 1) into the engine block (2) snugly, then
connect the sender connector (3) to the wiring harness
connector.
2. Connect the negative (-) battery cable to the
negative (-) battery terminal.
3. Check for proper coolant level.
4. Clear the area around the vehicle of personnel and
any obstructions to vehicle travel.
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