JLG 4013PS Service Manual - Manual (Page 106)

Engine: Perkins 1104-42 & 1104-42T
7-10 3508PS, 3509PS, 3512PS, 3513PS, 4008PS, 4009PS, 4012PS, 4013PS, 4017PS, 40.8, 40.9
Note: The engine harness is routed and attached to the
engine using hold-down clamps and plastic wire ties at
various places on the engine. Before removing engine,
ensure that the harness has been completely separated
(disconnected) from the engine. Move the harness clear
of the engine, and with the help of an observer, ensure
that engine clears the harness during removal.
8. Label and disconnect all wire harness connections
on the engine.
9. Unbolt and remove the hood latch plate. Mark the
plate to help with hood adjustment when being
reinstalled.
10. Unbolt the return hydraulic oil filter plate and leave in
place.
11. Disconnect and cap the fuel inlet line at the fuel filter
head.
12. Disconnect and cap the fuel return line from the fuel
filter head.
13. Mark the location of the throttle cable (13) at the
throttle cable mount. Loosen jam nuts and remove.
14. Disconnect the throttle cable at the engine throttle
lever.
15. Remove the exhaust pipe from the exhaust
manifold. Refer to Section 7.7.1, “Exhaust System
Removal.”
16. Loosen the clamps on the sleeve reducer at the
engine and on the air suction pipe.
17. Remove the air cleaner assembly. Refer to Section
7.8.1, “Air Cleaner Assembly Removal.”
18. Remove the access plug from side of the engine bell
housing. This will allow access to remove the eight
bolts holding the flex plate to the engine flywheel.
19. Turn the engine over slowly by hand and align each
of the eight flex plate bolts to be accessed. Remove
them one at a time.
20. Secure the engine with a lifting strap or chain from
the appropriate lifting points. Use a suitable hoist or
overhead crane.
21. At the rear right engine mount (14), remove the bolt
and washer. Repeat for the rear left engine mount.
22. Place a support or jack under the transmission to
hold the transmission in place while engine is being
removed.
23. Remove the ten bolts holding the transmission to the
engine. Slightly lift and pull the engine out of the
machine. Have an assistant ensure that the engine
clears all frame components during removal.
24. Place engine on a flat, level surface.
7.9.2 Engine Disassembly, Inspection and
Service
Engine disassembly, internal inspection, service, repair
and assembly procedures are covered in the Perkins
service manual. Several special engine service tools are
required to properly service the engine. Contact your local
Perkins Service partner for further information.
Note: If the engine is being replaced, there may be external
components that will be required to be transferred from the
original engine to the replacement engine depending upon
who you purchase the new engine from and the
configuration of your replacement engine. Refer to the
appropriate Perkins user manual for detailed procedures
that cover the transfer of original engine components to the
replacement engine.
MZ0940
13
MZ2170
14