DETROIT DIESEL
Operating
Instructions
clutch
Ambient Temperature
Pressure Gage Reading
Do not engage the clutch at engine speeds over 1000
1500 PSI (10 335 kPa)
Above 40F (4C)
rpm.
2500 PSI (17 225 kPa)
40F to 0F (4 to 18)
Below 0F ( 18C)
3300 PSI (22 737 kPa)
Inspection
Table 1
While the engine is running at operating temperature,
check for coolant, fuel or lubricating oil leaks. Tighten
An engine equipped with a Hydrostarter may be
the line connections where necessary to stop leaks.
started as follows:
Raise the Hydrostarter accumulator pressure with the
Engine Temperature
hand pump until the gage reads as indicated in
Table 1.
Normal engine coolant temperature is 160-185 F (71-
85 C).
Set the engine controls for starting with the throttle at
least half open.
Crankcase
NOTE: During cold weather add starting fluid at
the same time the Hydrostarter motor lever is
If the engine crankcase was refilled, stop the engine
moved. Do not wait to add the fluid after the
engine is turning over.
after normal operating temperature has been reached,
allow the oil to drain back into the crankcase for
approximately twenty minutes and check the oil level.
Push the Hydrostarter control lever to simultaneously
Add oil, if necessary, to bring it to the proper level on
engage the starter pinion with the flywheel ring gear
the dipstick.
and to open the control valve. Close the valve as soon
as the engine starts to conserve the accumulator
Use only the heavy duty lubricating oil specified under
pressure and to avoid excessive over-running of the
starter drive clutch assembly.
Lubricating Oil Specifications.
RUNNING
Cooling System
Oil Pressure
Remove the radiator or heat exchanger tank cap slowly
after the engine has reached normal operating
Observe the oil pressure gage immediately after
temperature and check the engine coolant level. The
starting the engine. If there is no pressure indicated
coolant level should be near the top of the opening. If
within 10 to 15 seconds, stop the engine and check the
necessary, add clean soft water or a high boiling point
lubricating oil system, The minimum oil pressure
type antifreeze (refer to Engine Coolant).
should be at least 18 psi (124 kPa) at 1200 rpm. The
oil pressure at normal operating speed should be 40-60
psi (276-414 kPa).
Marine Gear
Check the marine gear oil pressure. The operating oil
Warm-Up
pressure range for the marine gear at operating speed
is 120 to 160 psi (827 to 1103 kPa) and minimum oil
pressure is 100 psi (689 kPa) at idle speed (600 rpm).
Run the engine at part throttle and no-load for
approximately five minutes, allowing it to warm-up
before applying a load.
Turbocharger
If the unit is operating in a closed room, start the
room ventilating fan or open the windows, as weather
Make a visual inspection of the turbocharger for leaks
conditions permit, so ample air is available for the
and excessive vibration. Stop the engine immediately
engine.
if there is an unusual noise in the turbocharger.
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