EP 1110-1-8
(Vol. 10)
31 July 03
APPENDIX C
GUIDE FOR SELECTING OPERATING CONDITIONS
EQUIPMENT TYPE
AVERAGE
SEVERE
B25 and B35:
Buckets
Working in gravels, silts,
Working in rock, hard
Clamshell or
and sands at low impact
digging, high impact, or
Dragline
freshwater environment.
saltwater environment.
Depreciation Period:
8,000 - 10,000 hours
6,500 - 8,000 hours
C80 and C90:
Continuous lift near rated
Lift less than rated
Cranes
capacity, excessive
capacity, intermittent
Hydraulic, Truck
swing, abrasive
duty.
Mounted
materials, sloped
Mechanical, Truck
surfaces, and saltwater
Mounted
environment.
12,000 - 18,000 hours
14,000 - 20,000 hours
Depreciation Period:
C85:
Gravels, silts, pull, and lift Highly abrasive
Cranes
materials, impact
less than rated capacity.
Mechanical
breakout, continuous
Dragline, Lifting, or
load near rated capacity,
Clamshell
and saltwater
Crawler Mounted
environment.
14,000 - 22,000 hours
Depreciation Period:
12,000 - 18,000 hours
G10:
Working at or above
Working below rated
rated capacity, poor field
capacity, good field
conditions, such as
conditions.
saltwater.
7,000 - 8,000 hours
8,000 - 10,000 hours
Depreciation Period:
C-1
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