Series 50

Section 11.5 Operating Conditions

Section 11.5
Operating Conditions

The typical operating conditions for the Series 50 engine are listed in Table "Series 50 Lubrication System Parameters" and listed in Table "Series 50 Air System, Fuel System, and Cooling System Parameters" . Any variations from the conditions as listed may indicate an abnormal situation in need of correction. Be sure that the readings represent true values and the instruments are accurate before attempting to make corrections to the engine. This data represents rated conditions. Actual data may be influenced by environmental conditions.‪

Parameter Limits

Operating Conditions at 2100 r/min

Operating Conditions at 1800 r/min

Lubricating oil pressure (at rated speed) -kPa (lb/in.2 )‪

345 (50)‪

345 (50)‪

Minimum oil pressure for safe operation (idle) kPa (lb/in.2 )‪

83 (12)‪

83 (12)‪

In gallery oil temperature, maximum - °C (°F)‪

110 (230)‪

110 (230)‪

Oil flow-liters/minute (gallons/minute)‪

109 (29)‪

91 (24)‪

Oil pan capacity: High-liters (quarts)‪

21 (22)‪

21 (22)‪

Oil pan capacity: Low-liters (quarts)‪

18 (19)‪

18 (19)‪

Total engine oil capacity (with filters)-liters (quarts)‪

28 (26)‪

28 (26)‪

Table 1. Series 50 Lubrication System Parameters

Air, Fuel and Cooling System Parameter Description

Operating Conditions at 2100 r/min

Operating Conditions at 1800 r/min

Air System

Air Inlet restriction full load, maximum - kPa (in. H2 O):‪

Dirty air cleaner‪

5.0 (20)‪

5.0 (20)‪

Clean air cleaner‪

3.0 (12)‪

3.0 (12)‪

Crankcase pressure full load, maximum-kPa (in. H2 O)‪

0.75 (3)‪

0.75 (3)‪

Exhaust back pressure, maximum-kPa (in. Hg):‪

Full load *‪

10.1 (3.0)‪

10.1 (3.0)‪

Maximum allowable temperature rise (ambient air to engine inlet) - °C (°F)‪

16.7 (30)‪

16.7 (30)‪

Maximum allowable charge air cooler pressure drop - kPa (in. Hg)‪

10.1 (3.0)‪

10.1 (3.0)‪

Fuel System

Fuel pressure at secondary filter outlet - kPa (lb/in.2 )‪

Normal with 2.03 mm (0.080 in.) restriction‪

577 (75)‪

577 (75)‪

Minimum‪

345 (50)‪

345 (50)‪

Fuel spill minimum at no-load - L/min (gal/min):‪

Normal with 2.03 mm (0.080 in.) restriction‪

4.9 (1.3)‪

4.1 (1.0)‪

Fuel pump suction at pump inlet, maximum - kPa (in. Hg):‪

Clean system‪

20 (6)‪

20 (6)‪

Dirty system‪

41 (12)‪

41 (12)‪

Cooling System

Coolant temperature normal - °C (°F)‪

88 (190)‪

88 (190)‪

Coolant inlet restriction, maximum - kPa (in. Hg)‪

0.0 (0.0)‪

0.0 (0.0)‪

Coolant flow at full load speed-L/min (gal/min)‪

341 (90)‪

276 (73)‪

Engine coolant capacity - liters (quarts)‪

17 (16)‪

17 (16)‪

Minimum pressure cap - kPa (lb/in.2 ):‪

62 (9.0)‪

62 (9.0)‪

Maximum top tank temperature - °C (°F)‪

99 (210)‪

99 (210)‪

Minimum top tank temperature - °C (°F)‪

71 (160)‪

71 (160)‪

Thermostats:‪

Start to open - °C (°F)‪

86 (186)‪

86 (186)‪

Fully open - °C (°F)‪

97 (207)‪

97 (207)‪

Table 2. Series 50 Air System, Fuel System, and Cooling System Parameters

* Exhaust systems should provide a maximum of 3.0” during normal service. This applies to exhaust system devices having mufflers, and diesel oxidation catalysts. Particulate filter engines may operate above the 3.0” Hg specification as long as they do not exceed established protection alarm limits.


Series 50 Service Manual - 6SE50
Generated on 10-13-2008

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