JLG 4017PS Service Manual - Manual (Page 131)

7-15 3706PS, 3707PS, 4014PS, 4017PS, 33.7, 37.6, 37.7
Engine
13. Install heater and cooling hoses to engine and
tighten clamps (if equipped).
14. Install hood (1), end covers (2) and belly pans (3)
from engine compartment. and adjust if necessary.
15. Install and properly connect battery(s).
16. Check that all hydraulic system, electrical system,
cooling system, fuel system and exhaust system
connections are correct and connected tightly.
Note: Have an assistant stand by with a Class B
fire extinguisher.
17. Check for proper fluid levels prior to startup.
Refer to Section , “.”
18. Start engine and run to normal operating
temperature then shut off engine. While engine is
cooling, check for leaks.
19. Allow engine to cool. Check radiator coolant level,
and top off with coolant.
20. Check for leaks from engine, main hydraulic pump
and lines, transmission, hydraulic reservoir and fuel
tank. Check levels of all fluids and lubricants. Fill
as required.
Note: During full throttle check:
• DO NOT operate any hydraulic function.
• DO NOT steer or apply any pressure to the
steering wheel.
• Keep transmission in (N) NEUTRAL.
21. Check engine rpm at full throttle.
22. Purge hydraulic system of air by operating all boom
functions through their entire range of motion
several times.
23. Check hydraulic oil level. If oil is warm, oil level
should be visible in upper gauge window.
24. Check for proper operation of all components.
25. Turn engine OFF.
26. Install the oil pan cover underneath the
engine compartment.
27. Close and secure engine cover.
28. Remove Do Not Operate Tag from ignition key
switch and steering wheel.
7.10 TROUBLESHOOTING
Refer to Section 7.3, “Specifications and Maintenance
Information,” for detailed engine service information.