Section II. DESCRIPTION AND DATA

TM 5-6115-465-34

TO 35C2-3-446-2

NAVFAC P-8-625-34

TM 06858B/06859D-34

Section II. DESCRIPTION AND DATA

Water pump delivery (GPM):

1-5. Description

1500 rpm (50 Hz, 25kw) . . . . . . . . . . . . . . .18

The generator set is a fully enclosed, self-contained,

1800 rpm (60 Hz, 30kw) . . . . . . . . . . . . . . .22

skid mounted, portable unit. It is equipped with con-

2000 rpm (400 Hz, 30kw) . . . . . . . . . . . . .24.5

trols, instruments, and accessories which enable it to

be operated as a single unit or in parallel with two or

Crankcase:

more units of the same size, class, and mode. In addi-

tion, the generator sets will accept and operate with

Material. . . . . . . . . . . . . . . . . . . Alloy cast iron

fuel and electric winterization kits, load bank kit,

How Cast . . . . . . . . . . . . . . . Integral with block

wheel mounting kit, automatic transfer panel kits and a

remote control box. For a more detailed description of

Crankshaft:

the generator sets, refer to the Operator's and Organiza-

tional Maintenance Manual. A more detailed description

Material. . . . . . . . . . . . . Special steel, hardened

of specific components and assembies is found in the

applicable maintenance paragraphs of this manual.

bearing surfaces

Number of bearings . . . . . . . . . . . . . . . . . .. 5

Bearing diameter. . . . . . . . . . . . . . 2 7/8 inches

1-6. Tabulated Data

Bearing lengths:

a. General. This paragraph contains all mainte-

Front . . . . . .

. 1 1/32

inches

nance data pertinent to intermediate (field) (direct

Center. . . . . .

. 2 1/8

inches

and general support), and depot maintenance personnel.

Rear . . . . . . .

. 1 1/32

inches

For additional tabulated data, refer to the Operator's

Intermediate. .

.1 1/32

inches

and Organizational Maintenance Manual.

Connecting rod:

b. Engine Classification and Rating.

Material. . . . . . . . . . . .

Model . . . . . . . . . . . . . . . . . . . . . . . . D2998ERX37

. . Heat treated steel

Bearing diameter. . . . . .

. . . . . 2 3/8 inches

Installation drawing. . . . . . . . . . . . . . . . . 40-A-8875

Bearing length. . . . . . . . .

. . . . 1 11/64 inches

Bore and stroke . . . . . . . . . . . . . . . 33/4 x 4 1/2 inch

Rod length (c to c) . . . .

. . . . . . . .8 inches

Number of cylinders . . . . . . . . . . . . . . . . . . . . . . .6

Piston displacement (cu. in.) . . . . . . . . . . . . . . . .298

Piston and piston pin:

Dry weight (approx.) . . . . . . . . . . . . . . . .960 pounds

Lubricating oil capacity

Piston material . . . . Heat treated aluminum alloy

(with filters). . . . . . . . . . . . . . . . . . . . . .8 quarts

Pin material . . . . . . . . . . . . . . . . . . Alloy steel

Low idle recommendations . . . . . . . 1100 to 1200 rpm

Pin type . . . . . . . . . . . . . . . . . . . . Full floating

Fuel consumption (gals/hr):

Camshaft:

Number of bearings . . . . . . . . . . . . . . . . . . . .4

1500 rpm (50 Hz, 25 kw) . . . . . . . . . . . . . .2.35

Bearing diameter. . . . . . . . . . . . . .2 1/16 inches

1800 rpm (60Hz, 30 kw) . . . . . . . . . . . . . .2.85

2000 rpm (400Hz, 30 kw) . . . . . . . . . . . . .2.90

Bearing Length:

Front . . . . . . . . . . . . . . . . . . .l l/16 inches

Heat rejection to coolant (btu/min):

Intermediate. . . . . . . . . . . . . . . 13/16 inches

Rear . . . . . . . . . . . . . . . . . . . . .1 1/16 inch

1500 rpm (50Hz, 25kw) . . . . . . . . . . . . .1,407

1800 rpm (60Hz, 30kw) . . . . . . . . . . . . .1,689

Cylinder head:

2000 rpm (400Hz, 30kw) . . . . . . . . . . . .1,767

Material . . . . . . . . . . . . . . . . . . . .Alloy casting

Air consumption (CFM):

Type. . . . . . . . . . . .One piece casting

Valve arrangement. . . . . . . . . . . . . . . Overhead

1500 rpm (50 Hz, 25kw) . . . . . . . . . . . . .111.3

(E-I-E-I-I-E-E-I-I-E-I-E)

1800 rpm (60Hz, 30kw) . . . . . . . . . . . . . .134

Valve material (intake and

2000 rpm (400 Hz, 30kw) . . . . . . . . . . . . .149

exhaust . . . . . . . . . . . . . . . . . . . . .High alloy forging

1-2

Change 7