Technical Data

Basic technical dataNumber of cylinders. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 3Cylinder arrangement .. ... ... ... ... ... ... ... ... ... ... ... Vertical in-lineCycle ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... Four strokeInduction system.. ... ... ... ... ... ... ... ... ... ... ... Naturally aspiratedCompression ratio ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 165 : 1Bore . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 91,4 mm (3.6 in)Stroke .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 127 mm (5 in)Cubic capacity . ... ... ... ... ... ... ... ... ... ... ... ... .. 2,5 litres (152 in)Direction of rotation.. ... ... ... ... ... ... . Clockwise viewed from frontFiring order .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 1, 2, 3Estimated total weight (dry) . ... ... ... ... ... ... ... ... .. 311 kg (685 lb)Estimated total weight (wet). ... ... ... ... ... ... ... ... .. 330 kg (727 lb)Overall dimensions-height .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 846,4 mm (33.3 in)-length.. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 830 mm (32.7 in)-width (including mounting brackets) ... ... ... ... 620,6 mm (24.4 in)Moments of inertia (mk)-engine. ... ... ... ... ... ... ... ... ... ... ... ... ... . 0,109 kg m (373 lb in)-flywheel (see option drawing) . ... ... ... ... 1,69 kg m (5786 lb in )Centre of gravity-forward from rear of block... ... ... ... ... ... ... ... ... 168 mm (6.61 in)-above centre line of block... ... ... ... ... ... ... ... ... 161 mm (6.33 in)-offset to rhs of centre line ... ... ... ... ... ... ... ... ... ... ... ... ... ... TBA

PerformanceNote: All data based on operation to ISO/TR 14396Speed variation at constant load... ... ... ... ... ... ... ... ... ... 0.75%Maximum overspeed limit . ... ... ... ... ... ... ... ... ... ... 2750 rev/minCyclic irregularity-at 100% prime power (see flywheel option drawing) ... ... .. 0,0159Test conditions-air temperature ... ... ... ... ... ... ... ... ... ... ... ... ... ... 25 C (77 F)-barometric pressure. ... ... ... ... ... ... ... ... ... .100 kPa (29.5 in hg)Sound levelAverage sound pressure level for bare engine (without inlet and exhaust) at 1 metre ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... . 89 dBA-all ratings certified to within . ... ... ... ... ... ... ... ... ... ... ... ... . 5%If the engine is to operate in ambient conditions other than those of the test conditions, suitable adjustments must be made for these changes. For full details, contact Perkins Technical Service Department.80% of the prime power rating can be applied 10 seconds after the starter motor is energised. The remaining 20% can be applied 30 seconds after start if the ambient temperature is not less than 15 C (59 F). If it is less than 15 C (59 F), an immersion heater is recommended. For additional information, contact Perkins Technical Service Department.

3.152 Series27,9 kW @ 1500 rev/min

3.1524

General installation

Caution: The airflows shown in this table will provide acceptable cooling for an open power unit operating in ambient temperatures of up to 54 C (129.2 F) or 46 C (114.8 F) if a canopy is fitted with an airflow restiriction of up to 27 kPa (28 mm H2O). If the power unit is to be enclosed totally, a cooling test should be done to check that the engine cooling is acceptable. If there is insufficient cooling, contact Perkins Technical Service Department.

Designation UnitsType of operation and application

Prime Stand-by50Hz 50Hz

Gross engine power kW (bhp) 25,1 (33.7) 27,9 (37)Brake mean effective pressure kPa (lbf/in) 810 (118) 886 (129)Mean piston speed m/s (ft/s) 6,35 (20.8) 6,35 (20.8)ElectropaK net engine power kW (bhp) 24,9 (33.4) 27,7 (36.7)Engine coolant flow 8 kPa restriction l/min (UK gal/min) 34 (7.5) 34 (7.5)Combustion air flow m/min (ft/min) 1,61 (57) 1,61 (57)Exhaust gas flow (max) m/min (ft/min) 4,26 (150) 4,84 (171)Exhaust gas temperature (max) C (F) 540 (1004) 650 (1202)Cooling fan air flow m/min (ft/min) 85 (3000) 85 (3000)Fan absorption kW (bhp) 0,25 (0.33) 0,25 (0.33)Energy balanceEnergy in fuel (Fuel heat of combustion) kW (Btu/min) 69 (3920) 82 (4660)Gross heat to power kW (Btu/min) 25,5 (1450) 28 (1590)Energy in power output (net) kW (Btu/min) 25,0 (1421) 27,5 (1560)Energy to coolant and lubricating oil kW (Btu/min) 15 (850) 18 (1020)Energy to exhaust kW (Btu/min) 20,5 (1170) 26,5 (1510)Heat to radiation kW (Btu/min) 8 (450) 9 (510)

ElectropaK

3.1524 ElectropaK, right side view

C1041/1

177

(7)

103,2(4.06)

156,4(6.16)

234 (9.2)

406,

3 (16

)

50,8

(2)

10

42,1 (1.66)

1 Hole 20.5 (0.81)both brackets

Both sides

Y Y

X

X

674 (26.54)

322,3 (12.69)

TypicalStarter

TypicalAlternator

500.

0 (19

.69)

betw

een

he

ader

s65

5.7

(25.8

15)

3.3

(1.30

)

3.1524 ElectropaK, left side view

88,9

(3.5

)

161,9 (6.38)

397.

5 (34

0,70)

oil fil

ler

Fuel return to suit1/4 O/D pipe - see below for details

Y

X

389,7 (15.34) Oil filler

exh

X

C L

55,55(2.18)

47,63 (1.88)

38,1 (1.5)

Y

C1042/1

414,

3 (16

.31) e

xh ou

tlet

6,2

(3.0)

8,0

(0.31

) exh

flange

4 hole eachside 1/2 - 13 UNC

twin lucar 250 seriesblade connector forstop soleniod

Oil pressure switchmale blade connectorseries 250 0.25(6.3)x0.03(0.8)

6.19

9157

.21

cly

block

wate

r dra

in

3.152 Series 3.1524 27,9 kW @ 1500 rev/min

Cooling systemRadiator-face area... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 0,27 m (2.9 ft)-rows and materials ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 2, Brass-matrix density and material ... ... ... ... ... ... ... .. 9 fins/inch, Copper-width of matrix... ... ... ... ... ... ... ... ... ... ... ... ... . 540 mm (21.3 in)-height of matrix . ... ... ... ... ... ... ... ... ... ... ... ... . 500 mm (19.7 in)-pressure cap setting . ... ... ... ... ... ... ... ... ... ... ..62 kPa (9 lbf/in)

Governor type ... ... .Mechanical, integral with fuel injection pumpGoverning conforms to ... ... ... ... ... ISQ 8528-5 1993(E) Class G2Fuel specification

Fuel specification USA Fed Off HighwayEPA 2D 89.331-96Density (kg/l @ 15 C)Viscosity (mm/s @ 40 C)Sulphur Content

0,845 - 0,852,0 - 3,20.03 - 0.05%

TPD

14

48E,

Is

sue

2.

Prin

ted

in

Engl

an

d.

Pe

rkin

s En

gine

s Co

mpa

ny

Lim

ited Distributed by

Estimated cooling air flow reserve . ... ... ... .0,16 kPa (0.65 in H20)Fan-diameter ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 381 mm (15 in)-drive ratio .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 151 : 1-number of blades .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 6-material . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. steel blade-twist angle. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...30CoolantMaximum pressure head at pump . ... ... ... ... ... ... ... 2,6 m (8.4 ft)Total system coolant capacity ... ... ... ... 11,85 litre (20.9 UKpints)-draindown capacity .. ... ... ... ... ... ... ... 11,85 litre (20.9 UKpints)Maximum top tank temperature . ... ... ... ... ... ... ... 103 C (217 F)Minimum temperature to engine ... ... ... ... ... ... ... . 76 C (169 F)Temperature rise across engine ... ... ... ... ... ... ... ... . 6 C (11 F)Max permissible external system resistance . ... ..35 kPa (5 lbf/in)Thermostat operation range... ... ... ... ... ..82 - 95 C (180 - 203F)Electrical System-type ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ..Negative ground-alternator... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 12/24V options-starter motor . ... ... ... ... ... ... ... ... ... ... ... ... ... ... 12/24V optionsCold start recommendationsMinimum cranking speed ... ... ... ... ... ... ... ... ... ... ... TBA rev/min

Exhaust systemMaximum back pressure ... ... ... ... ... ... ... ... ... 10.2 kPa (3 in Hg)Exhaust outlet size. ... ... ... ... ... ... ... ... ... ... ... 51,6 mm (2.03 in)Note: Changes to induction restriction, exhaust back pressure and fuel viscosity/temperature/specific gravity, can affect power output. For further details contact Perkins Technical Service Department.

Fuel systemDiesel fuel (to conform to BS 2869 : 1983 Class A2 or ASTM D975 66T Number 2D)Type of injection. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...DirectFuel injection pump ... ... ... ... ... ... ... ... ... ... ... ... ... ..Rotary typeFuel atomiser . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .Multi holeNozzle opening pressure ... ... ... ... ... ... ... .. 25,85 MPa (255 atm)Fuel lift pump-flow/hour ... ... ... ... ... ... ... ... ... ... ... ... . 12,2 litres (21.4 UK pint)-pressure ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...25 kPa (3.6 lbf/in)Maximum suction head .. ... ... ... ... ... ... ... ... ... ... ... ...1,8 m (6 ft)Maximum static pressure head .. ... ... ... ... ... ... ... ... 2,5 m (8.2 ft)

Fuel consumption litres/hr (UK gals/hr)

Induction systemMaximum air intake restriction-clean filter... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 3 kPa (12 in H20)-dirty filter. ... ... ... ... ... ... ... ... ... ... ... ... ... ... 5,6 kPa (22 in H20)-air filter type ... ... ... ... ... ... ... ... .. Cooperpac 133,4 mm (5.25 in)-minimum dirt capacity ... ... ... ... ... ... ... ... ... ... ... ...353g/m/min

Lubrication systemLubricating oil capacity:Total system ... ... ... ... ... ... ... ... ... ... .. 6,17 litres (10.9 UK pints)Sump only ... ... ... ... ... ... ... ... ... ... ... .. 5,75 litres (10.1 UK pints)Maximum engine operating angles-front up 30, front down 33, side to side, right side 25, left side 35Lubricating oil pressure-relief valve opens ... ... ... ... ... ... ... 345 - 415 kPa (50 - 60 lbf/in)-at rated speed ... ... ... ... ... ... ... ... 210 - 415 kPa (30 - 60 lbf/in)-at minimum idle speed ... ... ... ... ... ... ... ... ... 90,0 kPa (13 lbf/in)Normal oil temperature ... ... ... ... ... ... ... ... ... ... ... 95 C (203 F)Maximum oil temperature 121 C (250 F)Oil consumption as a % of fuel consumption 1.0% maxRecommended SAE viscosityA single or multigrade oil must be used which conforms to API-CC/SE, see illustration below:

MountingsMaximum static bending momentat rear face of block ... ... ... ... ... ... ... ... ... ... . 790 Nm (583 lbf ft)

Minimumstarting

temperatureGrade ofengine

lubricatingoil

Battery specificationsBS3911

Coldstartamps

SAEJ537Cold

crankingamps

Number of

batteriesneeded

Perkins type

C F

-10 14 20W 315 535 1 D-15 5 10W 315 535 1 D-20 -4 5W 395 660 1 A

Cetane Number 40 - 48

Power rating110% 100% 75% 50%

W1355/1

0W5W20

10W3015W40

20W5020

-30 -20 -10 0 10 20 30 40 50ooC

-22 -4 14 32 50 68 86 104 122 F

3040

Ambient temperature

Perkins Engines Company LimitedPeterborough PE1 5NA United KingdomTelephone +44 (0) 1733 583000Fax +44 (0) 1733 582240All information in the document is substantially correct at the time of printing but may be subsequently altered by the company. Pu

blica

tion

No

. www.perkins.com

Trim

lineT

rim line3.1524 ElectropaK, rear view

C1043/1

380

(14.96

)

YY

Z

Z

12 Holes 8 - 16 UNC

200,

1 (7.

88)

fuel i

nj. p

ump

SAE 3housing

260.

4 (10

.25)

586

(23.0

7)

241,3 (9.5)

19 (0.75)

101,6(4.0)

263,6 (10.38)

241,3 (9.5)

292,4 (11.51)

357,0 (14.06) Max out

6Holes 1/2 - 20 UNFon 108 (4.25) PCD

11 (0.4)

428,625

PCD(16

.875)

50,8 (2.0)138,2 (5.44)

Fuel inj. pump

171,5 (6.75)Induction

172,2 (6.78)Exhaust

260,0 (10.24)

540,46 (21.28)

298 (11.73)

Water temperature sendertapping 1/2 x14 NSPI

409,57

409,70

(16.125)

(16.130)

25

Trim

line

Trim

line3.1524 ElectropaK, other details

C1044/1

X

108,0 (4.25) PCD34,9 (1.38)

76,2 (3.00) DIA Relief0,51 (0.02) to 0,13 (0.005)deep

Crankshaft palm details

0,8 (0.03) x 45

No.7 Centre drill

6 - 1/2 - 20UNF - 2B x 19,1(0.75) maxium equi-spaced

133,

3513

3,30

(5.25

0)(5.

248)

Fuel return detail

7/16 - 24 UNS

47,4 (1.86)

X XY Y Nut and olive

to suit 6,4 (0.25) pipe

6,65 (0.262)6,55 (0.258)

7,1

(0.28

)0.6

912

5,2

(4.93

)34

4,1

(13.55

)

X

X

EXH Flange

3 Holes 10,3 (0.4)on 76,2 (3.0) PCD

51,6 (2.03) R33,3 (1.31)

27,9 kW @ 1500 rev/min