SkyTrak 8042 Service Manual - Manual (Page 398)

7B.31 Model 8042, 10042, 10054 Legacy Rev. 10/03
Engine: Cummins QSB4.5T
7B.9 ENGINE EXHAUST SYSTEM
The exhaust system is supported by the engine and the
vehicle frame, and helps minimize the transfer of noise
and vibration into the operator’s cab. The tail pipe directs
exhaust fumes to the right side of the vehicle, away from
the cab.
Annoying rattles and noise vibrations in the exhaust
system are usually caused by misalignment of parts.
When aligning the system, leave all capscrews and nuts
slightly loose until all parts are properly aligned, then
tighten all fasteners working from the front of the system
to the rear.
When replacing the muffler, also replace the tail pipe.
Before assembling components, use exhaust system
sealer at all slip joint connections.
When installing exhaust system components, allow
sufficient clearance between the components and other
vehicle pipes, hoses and wiring that could be adversely
affected by excessive heat.
When installing an exhaust system, provide for parts
expansion when the system is hot.
Whenever performing service on the vehicle, check the
condition of the exhaust system. Check the entire exhaust
system for broken, damaged, missing or improperly
aligned parts, open seams, holes, loose connections and
other deterioration which could permit exhaust fumes to
seep into the operator’s cab. Correct any damaged areas
immediately.
7B.9.1 Exhaust System Removal
1. Level the vehicle, ground the attachment, place the
travel select lever in NEUTRAL (N) and engage the
neutral lock lever, engage the parking brake switch
and shut off the engine.
2. Remove the ignition key. Secure accident prevention
tags to the steering wheel and ignition key switch.
(Refer to Section 1.5, “Accident Prevention Tags.”
3. Unlock, unlatch and open the engine doors. Allow
the engine to cool before proceeding.
4. Disconnect the negative (-) battery cables (8) from the
batteries.
WARNING:
Exhaust fumes contain
carbon monoxide, a colorless, odorless gas
which is fatal when inhaled in a confined area.
Avoid breathing exhaust fumes, and prevent
engine operation from becoming a cause of
toxic emissions. Exhaust system components
reach high temperatures and can cause
severe burns. DO NOT come into contact with
hot exhaust system components.
WARNING:
To avoid severe burns, DO
NOT attempt to remove the engine when the
engine, cooling system and hydraulic system
are hot. Wait until all parts and systems are
cool before proceeding.
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