DETROIT DIESEL
Engine Equipment
the open reservoir filler spout. An occasional spurt of
quart (9 litres) capacity reservoir, add approximately 8
oil may be emitted from the hose prior to by-passing.
quarts (8 litres) of hydraulic fluid, 10 quarts (9 litres)
When the by-pass valve opens, a full and continuous
in a 12 quart (11 litres) reservoir, 14 quarts (13 litres)
stream of oil will flow from the hose. Reconnect the
in a 16 quart (15 litres) reservoir or 21 quarts (20
hose to the reservoir and install the filler cap.
litres) in a 23 quart (22 litres) reservoir.
5. Fill the reservoir to the proper level.
NOTE: When the accumulator is charged to
3000 psi (20 670 kPa) and all hoses are filled,
The Hydrostarter remote control system may be
there should be enough hydraulic fluid remain-
purged of air as follows:
ing in the reservoir to completely cover the
screen in the bottom of the reservoir.
1. Fill the master cylinder with fuel oil.
2. Loosen the hose fitting at the Hydrostarter control
valve.
A by-pass valve is located on the inlet side of the hand
3. Actuate the master cylinder pedal until all of the air
pump. Loosen the lock nut and rotate this valve
is discharged from the system and a solid stream of
approximately one turn counterclockwise with a screw
fuel oil is being discharged with each stroke.
driver. Operate the hand pump for 12 to 15 complete
strokes. Do not pump too rapidly. Close the by-pass
NOTE: Replenish the fluid in the master
valve tightly and tighten the lock nut.
c y l i n d e r as required during the purging
operation.
1. Move the starter control lever to engage the pinion
with the flywheel and open the control valve. While
4. Tighten the hose fitting and check for leaks.
holding the lever in this position, operate the hand
pump until the starter has turned several revolutions.
LUBRICATION AND PREVENTIVE
Close the control valve. Loosen the swivel hose fitting
MAINTENANCE
at the discharge side of the engine-driven pump about
two turns. Operate the hand pump to force air out
Inspect the system periodically for leaks. Primarily,
until oil begins to appear at the loose fitting. Tighten
examine the high pressure hoses, connections, fittings
the swivel hose fitting and pressurize the system with
and the control valve on the starter. Make certain that
the hand pump sufficiently to start the engine.
the oil level in the reservoir is sufficient to completely
cover the screen at the bottom of the tank. Make this
2. Perform the initial starting instructions under
check after the accumulator is charged and the engine
Preparation for Starting Engine First Time. Then, with
driven pump is by-passing oil to the reservoir.
the engine running at least 1500 rpm, purge the
engine-driven pump of air. Break the hose connection
Every 2000 hours, or as conditions warrant, drain the
at the discharge side of the engine driven-pump until
reservoir and remove the screen. Flush out the
a full stream of oil is discharged from the pump.
reservoir and clean the screen and filler cap. Then
Connect the hose to the pump and alternately loosen
reinstall the screen.
and tighten the swivel fitting on the discharge hose
until the oil leaking out, when the fitting is loose,
Remove the bowl and element from the filter in the
appears to be free of air bubbles. Tighten the fitting
engine-driven pump supply hose. Wash the bowl and
securely and observe the pressure gage. The pressure
element in clean fuel oil and reassemble the filter.
should rise rapidly to the accumulator precharge
pressure (1250 psi or 10 413 kPa at 70F or 21C),
Release the pressure a n d drain the remaining
then increase slowly, reaching 2900 to 3300 psi (19 981
hydraulic fluid from the system by disconnecting the
to 22 737 kPa).
hoses from the Hydrostarter components. Then
reconnect all of the hydraulic hoses.
3. After the pressure has stabilized near 3000 psi
CAUTION: The oil pressure in the system must
(20 670 kPa), examine all of the high pressure hoses,
be released prior to servicing the Hydrostarter
connections and fittings for leaks.
motor or other components to prevent possible
injury to personnel or equipment.
4. The engine-driven pump must by-pass oil to the
reservoir when the accumulator pressure reaches 2900
NOTE: Make sure all hoses and fittings are
to 3300 psi (19 981 to 22-737 kPa). To determine
clean before any connections are made.
whether the pump by-pass valve is operating properly,
remove the reservoir filler cap, disconnect the pump
Fill the Hydrostarter system with new clean fluid.
by-pass hose at the reservoir, and hold the hose over
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