User Manual

ManualsBrandsJLG ManualsSpecial machinery723A Service Manual

7-7

L2906H, 2906H, 3507H, 619A, 723A, 29.6LP, 29.6, 35.7

Engine: Deutz TCD 2012

7.8 ENGINE EXHAUST SYSTEM

7.8.1 Exhaust System 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

positi on, 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 battery.

5. Loosen and remove the clamp (1)(hidden)

connecting the muffler and tail pipe from the bracket

on the side of the frame.

6. Loosen and remove the clamp (2) attaching the rear

exhaust pipe section to the muffler.

7. Remove the muffler and tail pipe (3).

8. Loosen and remove the clamp (4) attaching the rear

exhaust pipe section to the frame.

9. Remove the rear exhaust pipe section (5) from the

front exhaust pipe section (6).

10. Loosen and remove the exhaust pipe flange nuts (7)

at the tu rbocharger.

11. Remove the front exhaust pipe section (6) from the

engine.

7.8.2 Exhaust System Installation

Note: Keep all clamps loosened until entire exhaust

system is in place.

Note: Replace the nuts and the exhaust studs on the

turbocharger if damaged.

1. Install the front exhaust pipe section (6) in place at

the turbocharger with the previously used hardware.

Torque the flange nuts (7) on the turbo charger to

30 ±7 Nm (22 ±5 lb-ft).

2. Install the rear exhaust pipe section (5) to the front

exhaust pipe section (6) with the previously used

clamp.

3. Install the muffler and tailpipe (3) to the exhaust pipe

with the previously used hardware.

4. Install the muffler (3) to the frame brackets with the

previously used hardware.

5. Adjust the muffler, exhaust and tail pipes for proper

clearance then tighten all clamps.

6. Properly connect the battery.

7. Start engine and check for exhaust leaks at all

exhaust connections. Adjust or repair as needed.

8. Close and secure the engine cover.

9. Remove the Do Not Operate Tags from both the

ignition key switch and the steering wheel.

MZ5450

MZ5460