2008-03-28_REVISION - M1989056 ‎(3)‎

• Permit No: M1989056
• IBM Index Class Name: REVISION
• Doc Date: 3/28/2008
• Doc Name: Financial warranty increase
• From: DRMS
• To: Don Kehn Construction Inc.
• Type & Sequence: SI1
• Email Name: ESC
• Media Type: D
• Archive: No

HOUR PRODUCTION
Haulinsl Cauacity
Scraper Payload (weight) Basis : Scraper Bowl (volum

)Basis
Material weight : 2,100 pounds/LCY
Material description :
Earth -Loam
Rated payload : 48,000 pounds
Payload capacity : 22.86 LCY
Cycle Time : Struck
Heaped
Average (
Adjusted d
"• hourly production reflects v
ob Condition Correc volume : 15.70 LCY
volume : 21.00 LCY
volume : 18.35 LCY
apacity : 18.35 LCY "'
lume per scraper pair on push-pull models
ions : Site altitude (ft.) : 4
800
Sc aper Push dozer ,
Source
Scraper loading time' : 0.50 minutes Altitude adj. : 1. 00 1.000 (Cat HB)
Maneuver and spread time : 0.60 minutes Job efficiency : 0. 30 0.830 (Cat HB)
'load time per scraper pair on push-pull models Net Correction : 0.
Travel time
Road condition description :Rutted din; little maintenance, no water, 2"tire pen
Haul Route
Seg. # Haul distance (feet) Grade (%) Roll. res. (%) Total res. (%) Veloci 30 0.830

tration

(fpm) Travel time (min.)**
1 700 0.00 5.00 5.00 22~ 18 0.47

Ha
Retum route I time : 0.47 minutes
1 700 0.00 5.00 5.00 28 4 0.40

"travel time for each segment is adjusted for acceleration/deceleration. RetUf time : 0.40 minutes
table velocities are max. attainable per total resistance shown, not average
Total scraper team cycle time (load + haul + maneuver and spread + r turn) : 1.97 minutes
Unadjusted unit production/hour : 560.11 LCY/hour'*' Adjusted for job condi tions : 464.89 LCY/hour
Optimal number of scrapers per push dozer : 2 Selected number of scr pers : 2 scraper(s)
Adjusted single scraper team (unit) hourly produ tion : 929.78 LCY/hour
Adjusted multiple scraper team (fleet) hourly produ ction : 929.78 LCY/hour
JOB TIME AND COST
Fleet size : 1 Team(s)
Unit cost : x0.628 /LCY