Lull 944E-42 Service Manual - Manual (Page 110)

Engine
7-8 944E-42
2. Install the flex pipe (3) and secure with clamp (8).
3. Install the exhaust pipe (2) and secure with clamps
(7 & 8).
4. Align the elbow portion of the exhaust pipe (2), so
the pipe is parallel with the frame of the machine.
5. Install the muffler bracket to the frame. Apply
Loctite ® 242 to two bolts and loosely secure the
bracket into place with the two bolts, washers and
nuts.
6. Slide the front muffler bracket onto the frame
mounted hangar. Apply Loctite ® 242 to two bolts and
loosely secure the front of the muffler in place with
the two bolts and washers (6).
7. Lift the rear of the muffler into place. Apply Loctite ®
242 to the two bolts and washers (2) and secure the
rear of the muffler in place.
8. Install the exhaust pipe (2) between the muffler and
the flex pipe (3) and secure with clamp (5).
9. Align the muffler and the exhaust pipe being careful
to allow sufficient clearance between tubes, hoses
and electrical wiring.
10. Tighten all muffler bolts and exhaust pipe clamps
(1, 5, 7, 8 & 9).
11. Instal the exhaust pipe heat shield (4).
12. Properly connect the batteries.
13. Start engine and check for exhaust leaks at all
exhaust connections. Adjust or repair as needed.
14. Close and secure the engine cover.
7.8 AIR CLEANER ASSEMBLY
Note: Refer to the appropriate Operation & Safety
Manual for your machine for the correct element change
procedure.
7.8.1 Air Cleaner Assembly Removal
1. Park the machine on a firm, level surface, level the
machine, fully retract the boom, lower the boom,
place the travel select lever in the (N) NEUTRAL
position, engage the parking brake, and shut the
engine OFF.
2. Place a Do Not Operate Tag on both the ignition key
switch and steering wheel, stating that the machine
should not be operated.
3. Open the engine cover. Allow the system fluids to
cool.
4. Properly disconnect the batteries.
5. Loosen, but do not remove the clamp securing the
air intake hose (4) to the engine turbocharger.
6. Disconnect the air intake sensor (5).
7. Loosen both hex bolts (6) securing the air cleaner
mounting band to the firewall enough to allow the
hex bolts to slip from the mounting band. Remove
the air cleaner assembly.
7.8.2 Air Cleaner Assembly Installation
Note: Apply Loctite
®
242 threadlock to the capscrew
threads before installation.
1. Position the air intake hose over the engine
turbocharger.
2. Align the mounting band with the firewall, and slide
the hex bolts (6) into the slots.Tighten the hex bolts.
3. Tighten the air intake hose clamp (4) at the engine
turbocharger.
4. Reconnect the air intake sensor (5).
5. Properly connect the batteries.
6. Close and secure the engine cover.
WARNING
NEVER run the engine with only the inner safety
element installed.
MU7330
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4
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