SkyTrak 6036 Service Manual - Manual (Page 192)

Engine: Cummins 4BT3.9
7.14 Model 6036 Legacy
4. Place a suitable container beneath the radiator
petcock (Fig. 7-15, 1). Slowly turn the radiator cap
(not shown) to the first stop and allow any pressure
to escape. Remove the radiator cap.
Figure 7-15 Fill the Radiator and Overflow Tank
5. Open the radiator petcock (Fig. 7-15, 1) and allow
the coolant to drain into a suitable container. Transfer
the coolant into a properly labeled container.
Dispose of properly if coolant needs to be replaced.
Close the radiator petcock.
6. Remove plastic retainer (Fig. 7-16, 1) from around
coolant heater element (2) and 110 volt cord (3).
Using a 29-mm socket, remove heating element
from engine block.
d. Coolant Heater Installation
1. Apply Teflon tape to coolant heater element threads
(Fig. 7-16, 2) and install element using a 29-mm
socket. DO NOT overtighten. Plug-in the 110-volt
cord (3) into heater element and install plastic
retainer (1) around coolant heater element (2) and
110-volt cord (3).
Figure 7-16 Coolant Heater Installation
2. Connect the negative (-) battery cable (Fig. 7-2, 1).
3. Open the radiator cap (not shown) and fill the
radiator (Fig. 7-15, 3) completely with a 50/50
mixture of ethylene glycol and water. Replace and
tighten the radiator cap. Add coolant to the overflow
bottle (2) until the bottle is 1/4 to 1/2 full. This
overfilling will compensate for any air trapped in the
cooling system.
4. Run the engine to operating temperature. Visually
check for leaks with the engine running. Check the
coolant level in the overflow bottle (Fig. 7-15, 2), and
fill, or drain, as necessary.
7.7 ENGINE ELECTRICAL SYSTEM
The engine electrical system, including the starter,
alternator and primary wiring, is described in Section 9,
“Electrical System.”
OA1310
1
3
2
MT0870
2
1
3