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7-260 Edition 47
Trenching Production
(get cycles per hour from scale J and enter on this page
scale J)
10) Connect J through K to scale L for required vol-
ume per cycle.
11) Enter estimated bucket fill factor (100%) on scale M.
12) Connect L through M to scale N for required bucket
size.
NOTE:
Ensure bucket width does not exceed minimum
trench width and also that weight of bucket and
payload does not exceed machine working weight
capacity (see lift capacity charts in this section).
J
CYCLES
PER
HOUR
K
HOURLY
PRODUCTION
LCM/m
LCY/hr
L
REQUIRED
VOLUME
M
BUCKET FILL
FACTOR
m
3
yd
3
N
REQUIRED
BUCKET
m
3
yd
3
Cycles/hr
Hydraulic
Excavators