POWER TRAIN GRT9165 SERVICE MANUAL
7-12
Published 10-01-2020 Control # 699-00
Maintenance
1. Check hose clamps for proper torque.
2. Inspect bellows for cracks or holes.
3. Clean charge-air cooler. Remove any dirt or debris.
4. Verify fan is operating correctly and there are no
hydraulic leaks.
Exhaust System
Non-Certified Engine Exhaust System
The exhaust system on non-certified engines (Figure 7-13)
is made of a muffler and various tubes, elbows, and clamps.
When removing and installing a muffler, tighten all hardware
to specifications found under Fasteners and Torque Values,
page 1-16, unless specified otherwise:
• Tighten V-band clamps to 13.5±1.5 N-m (9.96±1.10 ft-
lb).
• Tighten slip joint to 9 to 11.3 N-m (85 to 100 ft-lb).
• Tighten mounting bands to 5.4 N-m (4.0 ft-lb).
Stage 5/Tier 4 Engine Exhaust System
The Stage V/Tier 4 exhaust system (Figure 7-14) features a
aftertreatment unit (1) and various tubes, elbows, and
clamps.
Removal
1. Remove the sheet metal guard to gain access to the
exhaust system.
2. Remove clamps (2) to free the exhaust tailpipe (3).
3. Tag and disconnect electrical connections.
4. Disconnect the DEF hoses (1 and 2, Figure 7-12).
5. Remove nut (3), lockwasher (4), washer (5), and
capscrew (6).
6. Remove capscrew (7), lockwasher (8), and washer (9).
7. Remove nut (10), lockwasher (11), washer (12),
capscrew (13), and clamp (14) from hose (2).
8. Remove nuts (15), lockwashers (16), washers (17),
capscrews (18), clamps (19), and support bracket (20).
9. Remove clamp (4, Figure 7-14) and tailpipe.
10. Remove attaching hardware and mounting band clamps
(5).
11. Disconnect clamp (11), gasket (12), and tube (10) from
the engine exhaust.
12. Remove (9) coupler from tubes (8 and 10).
CAUTION
Burn Hazard!
Do not touch exhaust parts until they are at ambient
temperature. Severe burning may result.
6
4
1
3
5
2
10
11 14
13
12
15
16 19
18
17
8
7
9
20
1 DEF Fluid Out
2 DEF Fluid In
3Nut
4 Lockwasher
5 Washer
6 Capscrew
7 Capscrew
8 Lockwasher
9 Washer
10 Nut
11 Lockwasher
12 Washer
13 Capscrew
14 Clamp
15 Nut
16 Lockwasher
17 Washer
18 Capscrew
19 Clamp
20 Support Bracket
FIGURE 7-12
10188