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OM3006.2 04/98
Operator Cab and Controls
HEATER/AIR CONDITIONER VENTS
The heater/air conditioner vents (7, Figure 3-3)
may be rotated 360°. There are three in the
Heater/Air Conditioner Compartment (shown be-
low), four vents across the top of the panel, and
one each in the R.H. & L.H. instrument panel pods.
Air flow through the vents is controlled by manu-
ally opening/closing or turning the louvers.
RETARDING CAPACITY CHART
The Retarding Capacity chart (8, Figure 3-1 & shown
below) provides the recommended MAXIMUM truck
speeds for descending various grades with a fully
loaded truck.
RETARDING CAPACITY CHART
The operator should reference the Retarding Capacity
chart before descending any grade with a loaded truck.
Proper selection of road grade, truck speed, transmis-
sion gear range, and use of the retarder lever and/or
brake pedal are required to maintain a safe speed.
Refer to OPERATING INSTRUCTIONS, ''Retarder Op-
eration'', previously discussed in this Section.
DO NOT exceed these recommended MAXIMUM
speeds when descending grades with a loaded
truck.
Customer specified options may cause this decal to
change: ALWAYS refer to the Retarding Capacity
chart in the operator's cab, and follow the recommen-
dations there for safe truck operation.
Operation - Section 3
Page 3-15
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