EP 1110-1-8
(Vol. 5)
31 July 03
APPENDIX C
GUIDE FOR SELECTING OPERATING CONDITIONS (Continued)
EQUIPMENT TYPE
AVERAGE
SEVERE
L60:
Log Skidders
Continuous turning, steady
Continuous turning, steady
skidding for medium
skidding for long distances
distances with moderate
with frequent decking; poor
decking. Good
underfoot conditions: wet
underfooting: dry floor with
floor, steep slopes, and
few stumps and gradual
numerous stumps; and
rolling terrain.
saltwater environment.
Depreciation Period:
10,000 hours
8,000 hours
M10 - .31 and .32:
Clamshell dredges
Gravel, silts, breakout
Rock, abrasive materials,
< 5 cy
force at less than capacity,
load at rated capacity,
Amphibious Excavator
freshwater conditions.
saltwater conditions.
Depreciation Period:
10,000 - 20,000 hours
9,000 - 18,000 hours
M10 - .51 and .53:
Boats, Skiffs, Crew
Freshwater applications,
Saltwater use, medium to
Boats, Work Boats,
light waves, and steady to
high waves, heavy use.
Survey Boats, and
light use.
Launches
Depreciation Period:
16,000 - 18,000 hours
13,000 - 15,000 hours
P35:
Pipelayers
Typical pipelayer use in
Continuous use in deep
operating conditions
mud or water or on rock
ranging from very good to
surfaces.
severe.
Depreciation Period:
14,000 hours
11,500 hours
C-5
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