PRINTED IN U.S.A. 31 913218/CP0307
COLD STARTING PROCEDURES
A block heater or radiator lower hose heater is recom-
mended for starting in temperatures of 20
o
F (-7
o
C) or
lower. See your Gehl dealer for recommended heater.
If prevailing temperature is 40
o
F (4
o
C) or below, it
may be necessary to use a cold weather starting aid to
start the diesel engine. For proper use of starting aids,
check instructions in the engine manual.
If the battery becomes discharged and does not have
sufficient power to start the engine, jumper cables can
be used for starting assistance. Refer to the jump start-
ing instructions in the Service and Storage chapter of
this manual for safe jump starting procedures.
STOPPING
The following procedure is the recommended
sequence for stopping the machine:
1. Bring the machine to a stop on a level surface.
Avoid parking on a slope, but if necessary park
across the slope and block the wheels.
2. Fully retract the boom and lower the attachment to
the ground. Idle the engine for gradual cooling.
3. Place controls in neutral. Apply the parking brake.
4. Turn the ignition switch key to the “OFF” position.
Remove the key.
5. Unfasten the seatbelt, and grasp the hand holds
while climbing out of the operator’s compartment.
FIRST TIME OPERATION
Make sure the engine is warm and then go through the
following procedures:
Select the travel direction and the speed range. Turn off
the parking brake switch and move ahead slowly, while
testing the steering and brakes. Stop and operate all
boom, attachment tool functions and frame leveling
controls, checking for smooth response.
Apply the service brakes, stop the machine and move
the direction lever to the opposite direction.
Shifting to the next higher gear may be done at any
engine RPM while the machine is in motion.
DO NOT overspeed the engine when down-shifting.
Allow the machine to slow down before shifting to the
next lower gear.
ENGINE SHUTDOWN PROTECTION
NOTE: Only machines that have the engine fault
override shutdown switch described on page 23
have this feature.
The engine is equipped with a WARNING and SHUT-
DOWN feature to warn of low engine oil pressure and
high engine coolant temperature. If the problem is not
corrected, the engine power will be reduced automati-
cally, or the engine will shut down.
Engine Oil Pressure
There are two low oil pressure protection features:
Low Oil Pressure WARNING, and Low Oil Pressure
SHUTDOWN.
At the Low Oil Pressure WARNING set-point, the
warning lamp in the engine override switch will flash
and a slow engine power derate will begin. But if the
oil pressure rises above the Low Oil Pressure WARN-
ING set-point, power will slowly increase until the
engine is back to full power. The lamp will continue to
flash until the power has returned to normal, even if the
fault condition has been corrected and the recovery is
in process.
At the Low Oil Pressure SHUTDOWN set-point, the
lamp in the engine override switch will light conti-
nously, and a fast engine power derate will begin. But
if the oil pressure does not rise above the SHUT-
DOWN set-point within 30 seconds, the engine will
shut down. However, if the oil pressure rises above the
Low Oil Pressure SHUTDOWN set-point within 30
seconds, then the power derate speed will revert to the
Low Oil Pressure WARNING speed of reaction.
CAUTION
Be sure the area used for test-running is clear
of spectators and obstructions. Initially, oper-
ate the machine with an empty attachment
tool.
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