SkyTrak 8042 Service Manual - Manual (Page 360)

7A.37 Model 8042, 10042, 10054 Legacy Rev. 10/03
Engine: Cummins 4BT3.9 and 4BTA3.9
Note: Have an assistant stand by with a Class B fire
extinguisher. Start and idle the engine.
32. Fill the overflow tank (12), 1/4 to 1/2 full with a 50/50
mixture of ethylene glycol and water. Replace and
tighten overflow tank cap (13).
33. Run engine to normal operating temperature then shut
off the engine. While the engine is cooling, check for
leaks.
34. Allow the engine to cool. Check the radiator coolant
level, and top off with a 50/50 mixture of ethylene
glycol and water. Replace the radiator cap.
35. Check for leaks from the engine, main hydraulic pump
and lines, transmission, hydraulic reservoir and fuel
tank. Check the levels of all fluids and lubricants. Fill
as required.
IMPORTANT: During the full throttle check:
• DO NOT operate any hydraulic function.
• DO NOT steer or apply any pressure to the steer-
ing wheel.
• Keep the transmission in NEUTRAL (N).
36. Obtain and connect an appropriate engine analyzer
or tachometer. Check the engine rpm at full throttle.
If the rpm is not 2600-2800 rpm, readjust the throttle
limit-stop screw at the throttle pedal within the cab.
37. Purge the hydraulic system of air by operating all
boom functions through their entire range of motion
several times. Check the hydraulic oil level.
38. Check for proper operation of all components.
39. Turn the engine OFF.
MH4020
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