construction equipment available for NMCBs. Table 3-1 contains an abbreviated list of such construction equipment.
TABLE 3-1. NMCB TA-01 Construction Equipment Characteristics
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Qty EC Description
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16 0355-01 TRK, Pickup, 4X4, 4 Dr, 9200 GVW
4 0360-41 TRK, Util Cargo, 4X4, DED, HMMWV XM998
8 0360-51 TRK, Armament Carrier, 4X4, HMMWV M1043
2 0361-41 TRK, AMB, 2 Litter, 4X4, DED, HMMWV XM1035
16 0587-51 TRK, Dump, 5T Mil, 6X6, FMTV M1090
14 0588-51 TRK, Cargo, %T Mil, 6X6, FMTV M1083
10 0607-51 TRK, Trac, 5T, 6X6, FMTV M1088
4 0645-21 TRK, Trac, 6X6, DED, 600000 GVW
2 0709-51 TRK, Lube, Servicing, 6X6, Auto Trans., FMTV M1092
4 0722-21 TRK, Maint/Util, 4X4, DED, 8500 GVW
2 0730-21 TRK, Wrecker, 25T, 6X6, Commercial, 46000 GVW
2 0746-01 TRK, Truck TNK Fuel, 4X2, DED, 1500 Gal
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84 Subtotal
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10 0816-11 Semi, Stake, 34X, 34T, 40 FT Mil
13 0825-11 Semi, Lowbed, 34X, 35T
5 0829-02 Dolly, TRLR Conv, 9T Commercial
1 0842-01 TRLR, BOLST, Pipe/Pole, 13T payload
10 0880-02 TRLR, TNK 400G, Potable water M149A2
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39 Subtotal
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2 1820-00 TRFK, 4k-20k lb CAP, Rough, DED
5 1820-04 TRFK, 4000 lb CAP, Rough, DED
7 1820-12 TRFK, 12000 lb CAP, Rough, DED
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14 Subtotal
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TABLE 3-1. NMCB TA-01 Construction Equipment Characteristics (Continued)
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Qty EC Description
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4 3135-02 COMPRES, WHEEL MTD, DED, 250 CFM
1 3165-02 COMPRES, WHEEL MTD, DED, 750 CFM
1 3165-11 COMPRES, WHEEL MTD, DED, 750 CFM 300 PSI
1 3630-32 HAMMER PILE, 1600 FT LBS, W/LEADS
1 3635-01 EXTRACTOR PILE, AIR, 100T LINK PULL
2 3710-11 AUGER, EARTH, TRK MTD, DED, 24 INCH X 10 FT
1 3720-02 DRILL WELL, WATER ROT/PER, 1500 FT, DED ETWD
1 3720-51 DRILL, SUPPORT ULH, DED, 6X6,FRONTV M1086
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12 Subtotal
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1 4310-01 DITCHING MACH, LDDR TYPE,DED, CRAWLER MTD
1 4310-02 DITCHING MACH, WHL TYPE, DED, 6 FT DEPTH
2 4350-01 EXCAVATOR, CRWLR MTD, W/BKTS, PAV BRKR
6 4420-21 GRADER, ROAD, MOTORIZED,DED,6X4,OPEN ROPS
4 4530-41 LOADER,SCOOP,FULL-TRKED, 2-1/2 CY W/ROPS
3 4531-10 LOADER,SCP,WHL,2 CY,MP,BKT,BHOE,FRKS,ROPS
3 4531-30 LOADER,SCP,WHL, 2-1/2CY, MP, BKT,
BHOE,FRKS,BOOM,ROPS
2 4615-01 ROLLER, MOTORIZED, COMPACTOR, 9 WHLD
3 4635-20 ROLLER, ROAD, VIBRATORY, 1 DRUM, FRONT, ROPS
6 4750-20 SCRAPER TRACTOR, DED,4X2,14-18 CY, ROPS
2 4830-10 TRACTOR CRAWLER, DED, 105HP, STRGHT BLD, ROPS
3 4850-12 TRACTOR CRWLR, DED, 195 HP, A-BLD, WNCH, CAB
3 4850-21 TRACTOR CRAWLER, DED 195 HP, SEMI-V BLD
1 4875-04 TRC WHL, END, 4X2, 60HP, LDR, ICY, BKT,
10 5110-22 FLDLT SET, TRLR MTD, DED, 5KW W/4 1KW LUM
2 5121-10 GENERATOR SLT, SKID MTD, DED, 10KW, MRP 803A
4 5121-15 GENERATOR SLT, SKID MTD, DED 15KW, MRP 004A
3 5122-30 GENERATOR SLT, SKID MTD ,DED 30KW, MRP 805A
6 5124-60 GENERATOR SLT, SKID MTD, DED 60KW, MRP 806A
1 5160-01 LUBRICATION/SERVICING CMT, SKID MTD
7 5170-71 WELDER, ARC, WHL MTD, DED, 3-- AMP, TIG
2 5210-11 PUMP, DIAPHRAGM, RECIPROCATING, DED, 100GPM
2 5220-19 PUMP, CENTRIFUGAL, SLTWTR, SKID, GED, 500 GPM
8 5220-21 PUMP, CENTRIFUGAL, TRASH, WHL, GED, 400GPM
1 5220-31 PUMP, CENTRIFUGAL, TRASH, TRLR MTD, 1000 GPM
TABLE 3-1. NMCB TA-01 Construction Equipment Characteristics (Continued)
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Qty EC Description
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2 5420-01 SPRAYER, DECONTM, MIL, 50 GPM W/SHOWER, SKID
2 5710-21 SWEEPER, PERM, MAGNET, TOWED, 8 FT, SWATH
4 5900-01 SAW, RADIAL ARM, WOOD, 16 INCH BLADE, DED, GED
1 5910-11 SHOP MACHINE, MOBILE SEMITRLR MTD
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30 Subtotal
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2 8215-01 CRANE, TRUCK MTD, 2 ENG, PRT, 35T
2 8254-25 CRANE, WHL MTD, 4X4, CONTAINER HANDLING
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4 Subtotal
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263 TOTAL
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a. Functions and Use of Common NMCB Construction Equipment. The following information about the functions and uses of common construction equipment is basic and not meant to replace the knowledge and skills gained from practical experience. It is offered to assist planners who are not themselves equipment operators, and to supplement the information in table 3-1 and the TOA. The following descriptions cover only that equipment listed in the TOA for an NMCB. Planners should recognize that there may be additional (augment) equipment available at a construction site, and that such equipment must be taken into consideration when making job estimates.
(1) Graders are designed for finish grade work but can be used in a variety of grading and ditching jobs. Most motor graders are equipped with scarifier teeth for breaking up
"hard pan" and asphalt paving.
(2) Loaders have two general classifications: track or crawler tractor mounted;
and wheel or pneumatic tire tractor mounted. The primary job of the loader is to load common earth materials into dump trucks or other earth hauling equipment. Most NCF loaders are equipped with a "4-in-1" bucket which can be used as a loader, scraper, dozer, or clamshell.
Type Roller Purpose
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Sheep foot Tamp and compact fill material Grid Break and crush rocks and pavement Three wheel Breakdown and roll subsurface Tandem Finish roll asphalt paving
Rubber tire Knead action subsurface compaction Vibratory Deeper penetration and vibration force
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(4) Scrapers have two general classifications: drawn or towed; and motorized or self-propelled. Scrapers towed by track-laying tractors have self-loading capabilities beyond those of motorized scrapers, but are restricted in their efficient hauling distance, ranging from 300 to 1,500 feet. The struck capacity for scrapers most frequently used by the Seabees ranges from 14 to 18 cubic yards. Generally, scrapers are used where large volumes of material are to be hauled in "cut and fill" operations.
(5) Tractors have two general classifications used in earth moving: wheel or pneumatic tire tractors; and track or crawler types. Both types are used to pull scrapers, rollers, and other earth moving or compacting equipment, and may be fitted with a dozer blade, loader, backhoe, and a variety of other attachments.
(6) Cranes have three general types of land cranes, plus floating or barge-mounted cranes. The three types of land cranes are: track barge-mounted or crawler cranes; truck mounted; and self-propelled rubber tired (single engine), sometimes called "maxi-mount."
Capacities of cranes are usually rated in two ways: safe-load lifting capacity; and cubic yards struck bucket capacity. There is a variety of attachments that is standard with the basic crane machine. The following is a list of crane attachments and their characteristics.
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Attachment Characteristics
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Lattice-type Boom Hook block for general lifting jobs.
Clamshell bucket for vertical digging below ground level; ideal for digging manholes, charging aggregate hoppers, where vertical height and depth is needed.
Dragline for below ground level digging of trenches or culverts; well suited for bank sloping, with horizontal digging action as the bucket is drawn toward the machine.
Pile driver leads.
Orange peel for handling large boulders.
Headache ball for demolition work.
Magnet.
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Attachment Characteristics
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Backhoe, or Pull Shovel Used for below ground-level digging. The digging action is similar to a dragline in that the bucket is drawn toward the machine.
Positive digging action due to its rigid construction, which makes it ideally suited to work in hard material. It is limited in reach, however.
Not well suited to bank sloping.
(7) Multi-purpose excavator, sometimes referred to as a "grade all," is an all-hydraulic-control machine with a pivoting telescoping arm or boom which comes with a variety of quick change attachments for a large number of jobs. It is ideal for trenching, digging footings, digging manholes, and bank sloping.
6. MATERIAL WEIGHTS AND PERCENT OF SWELL. Data that pertain to the weight