EP 1110-1-8
(Vol. 7)
31 July 03
APPENDIX C
GUIDE FOR SELECTING OPERATING CONDITIONS (Continued)
EQUIPMENT TYPE
AVERAGE
SEVERE
T55 and T60:
Truck, Off-Highway
Varying load and haul road
Continuous use on very
Trucks, Water,
conditions; high rolling
poorly maintained haul
Off-Highway
resistance and poor
roads, high rolling
(Articulated and Rigid)
traction during part of the
resistance, and poor
job; some adverse grades;
traction; frequent adverse
some impact loads; and
grades and high impact
typical use in road building,
loads; and poorly matched
dam construction, open-pit
loading equipment with
mining, etc.
continuous overloading.
Depreciation Period:
12,000 - 20,000 hours
10,000 - 18,000 hours
W10 and W15:
Wagons
Varying load and haul road
Continuous use on very
Bottom Dump
conditions; long and short
poorly maintained haul
Rear Dump
hauls; high rolling
roads, high rolling
resistance and poor
resistance, and poor
traction during part of the
traction; high impact
job; some adverse grades;
conditions, such as loading
some impact; typical road
ripped rock; frequent
building use in a variety of
adverse grades and high
jobs; and dam
impact loads; and poorly
construction, open-pit
matched loading
mining, etc.
equipment with continuous
overloading.
Depreciation Period:
12,000 hours
10,000 hours
C-8
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