Gradall 534B (9020-7317) Service Manual - Manual (Page 13)

installed ether starting aid, fully raise and depress
starting aid knob one time only before cranking
engine. If you use a different starting aid, be sure to
follow manufacturer ’s instructions carefully.
Excessive ether may damage engine.
ENGINE OPERATION
NOTE: If engine is being started at beginning of work shift be sure to perform all “ CHECKS AND
SERVICES BEFORE STARTING ENGINE” (Page 6).
Starting Engine
Check to be sure that all controls are in neutral
and that all electrical components (lights, heater,
defroster, etc.) are turned off. Set parking brake.
Insert ignition key and turn clockwise to ON
position. Low brake pressure light should glow
and continue to glow until brake system
accumulator is fully charged.
Depress accelerator pedal approximately 1/4 to
1/3 of travel from top.
1.
2.
3.
Turning ignition switch to START position
while engine flywheel is rotating can cause
serious damage to engine and/or starting
motor.
NOTE: If temperature requires the use of a starting
aid, and if your handler is equipped with a factory-
Cold Weather Starting Aids
Diesel engine ignition is accomplished by heat
generated when fuel/air mixture is compressed
within the cylinders. Because this heat may be
insufficient to start a cold engine in cold weather,
the use of starting aids has become common practice.
Because of the wide variety of starting aids available
it would be impractical to attempt to provide
Normal Engine Operation
Observe gages frequently to be sure all engine
systems are functioning properly.
The ammeter shows the charge/discharge rate of the
battery charging system. With the engine running, a
discharge reading (-) or a continuing high charge
reading (+) indicates a problem in the battery
charging system.
Be alert for unusual noises or vibration. When
an unusual condition is noticed, stop machine in a
safe position and shut off engine. Determine cause
and correct problem before continuing.
7
Turn ignition key clockwise to on position and
depress start button to engage starting motor.
Release button immediately when engine starts.
If engine fails to start within 20 seconds, release
button and allow starting motor to cool for a few
minutes before trying again.
After engine starts, observe oil pressure gage. If
gage remains on zero for more than ten seconds,
stop engine and determine cause. Correct cause
of malfunctioning before restarting engine.
Normal engine oil pressure should be in range of
35 - 50 psi (241 - 345 kPa).
Warm up engine at approximately 1/2 throttle
until engine coolant temperature reaches
operating range of 180 - 200°F. (82 - 93°C.).
specific instructions for their use in this manual.
Carefully follow instructions furnished with your
starting aid.
If you use a starting aid employing ether or a
similar substance pay particular attention to
manufacturer’s warnings.
Avoid prolonged idling. Idling causes engine
temperature to drop and this permits formation of
heavy carbon deposits and dilution of lubricating oil
by incompletely burned fuel. If the engine is not
being used, turn it off.
4.
5.
6.
continued...
Always keep engine covers closed while
engine is running.