01–00 Safety Precautions
Safety Precautions in this section apply to all
procedures within this group.
DANGER
When working on the vehicle, shut down the en-
gine, set the parking brake, and chock the tires.
Before working under the vehicle, always place
jack stands under the frame rails to ensure the
vehicle cannot drop. Failure to follow these steps
could result in serious personal injury or death.
01–01 Engine Drive Belt
Inspecting
WARNING
The engine and the belt must be cool before you
check the belt. Handling a hot belt can cause per-
sonal injury.
1. Inspect the belt for damage.
Transverse (across the belt width) cracks are
acceptable.
Longitudinal (direction of belt length) cracks that
intersect with transverse cracks are not accept-
able.
2. Replace the belt if it has unacceptable cracks, is
frayed, or has pieces of material missing.
For additional information, see the Cummins Op-
eration and Maintenance Manual.
01–02 Engine-Support
Fasteners Checking
1. Check the rear engine-support fasteners. See
Fig. 1. Tighten the rear engine-mount bolt 157
lbf·ft (213 N·m).
Tighten the insulator-to-frame mount bracket
bolts 91 lbf·ft (123 N·m).
Tighten the engine mount bracket-to-engine bolts
62 lbf·ft (84 N·m).
2. Check the 3/4–10 front-engine front mount bolt.
See
Fig. 2. Tighten it 95 lbf·ft (128 N·m).
Check the 3/4–10 rear-engine front mount bolt.
Tighten it 95 lbf·ft (128 N·m).
11/08/2005
1
f0120111
2
3
1. Front and Rear-Engine Rear Mount Bolt
2. Engine Mount Bracket-to-Engine Bolts
3. Frame Mount Bracket Bolts
Fig. 1, Front and Rear-Engine Rear Mount (ISB chassis
built after 2002)
11/08/2005
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f012110
1. Front and Rear-Engine Front Mount Bolt
Fig. 2, Front and Rear-Engine Front Mount (ISB chassis
built after 2002)
Engine 01
Recreational Vehicle Chassis Maintenance Manual, June 2015 01/1
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