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Operating Instructions - Section 30
Page 30-8
Radiator Silencer
General
Sound attenuators have been added to the front of
the radiator. The ladder has been brought forward,
which has meant the front bumper has been
extended forward to accommodate.
FIGURE 30-7. RADIATOR SILENCER
1. Top Attenuator
2. Splitter
Maintenance
Refer to the Sound Attenuation System Service sec-
tion for inspection requirements.
Do not pressure wash the sound attenuation sur-
faces. Malfunction and damage may occur,
reducing the effectiveness of the attenuators.
3. Insulation
4. Lower Attenuator
Periodically, the attenuators need to be disassem-
bled for maintenance. Refer to Sound Attenuation
System Service for maintenance intervals. Follow the
steps below to service the attenuators.
1. Remove the four cap screws on the front of a
splitter and remove the cover. The covers
should be compact enough for easy handling.
2. Remove the cover to gain access to the insula-
tion pillow. The pillow should have a protective
cloth between the insulation and the perforated
cover. The insulation should be clean, soft, and
free from debris. The insulation should be of
consistent density, and fill the cavity completely,
not slumping to the bottom.
NOTE: If a significant amount of damage or soiling of
any of the parts has been observed, replacement
parts
must
be
installed
performance of the parts.
3. With the insulatino pillow removed, use a pres-
sure washer only on the metal parts. Remove
all of the debris, oil, or grease present on the
parts.
4. Reassemble and reinstall the splitter pack.
Repeat for the remaining splitter packs.
Approximate weights
Always use a lifting device that can handle the
load safely. The radiator attenuators require a
crane for installation & removal.
Lifting eyes are provided on top of the radiator under-
neath the cover, and between the top and bottom
rows of attenuators behind where the lights are
installed.
Upper Radiator Attenuator - 525 kg (1,157 lb)
Lower Radiator Attenuator - 525 kg (1,157 lb)
2/13 OM3072
to
ensure
correct
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