John Deere pd54 Lawn Mower User Manual


 
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3. OPERATION
BEFORE STARTING ENGINE IN A CONFINED
BUILDING, INSTALL PROPER OUTLET
EXHAUST VENTILATION EQUIPMENT.
ALWAYS USE SAFETY APPROVED FUEL
STORAGE AND PIPING. NEVER RUN THE
ROLLER WITHOUT THE PANELS IN PLACE OR
SEVERE PERSONAL INJURY MAY OCCUR.
3.10 BEFORE STARTING
1. Check for proper fluid levels, engine oil,
coolant, fuel, and hydraulic oil.
2. Check the air cleaner.
3. Check throttle, levers, and controls for smooth
operation.
4. Check seat belt, horn, and back-up alarm
operation.
3.11 TO START
1. Operator must always be seated and seat belt
must be worn.
2. Forward/reverse must be in NEUTRAL position
and eccentric switch should be in OFF position.
3. Throttle should be set at idle.
4. Turn key clockwise until the engine cranks over.
Release the key when the engine starts.
DO NOT crank engine for more than 20
seconds at a time.
5. Check all gauges for normal engine operation.
If operation is not normal, stop the engine and
determine the cause.
NOTE:If temperature is below 0° C (32° F), it may be
necessary to use cold weather starting aid. See Cold
Weather Starting later in this section.
DO NOT USE STARTING FLUID (ETHER).
ENGINE IS EQUIPPED WITH INTAKE HEATER.
AN EXPLOSION OR FIRE MAY RESULT. REFER
TO COLD WEATHER STARTING
INSTRUCTIONS.
3.12 TO STOP
ALWAYS OBEY THE FOLLOWING
PROCEDURES BEFORE DISMOUNTING FROM
THE ROLLER.
1. Place the forward/reverse lever in the NEUTRAL
position.
2. Throttle engine down to its slowest speed.
3. Turn key switch to OFF position to stop the
engine. Remove ignition key.
NOTE:Before stopping an engine that has been
operating at working load, idle engine at
least 2 minutes.
3.13 IDLING ENGINE
IMPORTANT: Avoid excessive engine idling.
Prolonged idling may cause the engine coolant
temperature to fall below its normal range. This, in
turn, causes crankcase oil dilution, due to
incomplete fuel combustion, and permits formation
of gummy deposits on valve, pistons, and piston
rings. It also promotes rapid accumulation of
engine sludge and unburned fuel in the exhaust
system.
3.14 WARMING ENGINE
IMPORTANT: To assure proper lubrication,
operate engine at idle with no load for 5 minutes.
Extend this period when operating at temperatures
below freezing.
1. Check oil pressure gauge as soon as engine
starts. If gauge needle does not rise above
minimum oil pressure specification of
(1.05 bar) (15.0 psi) within 5 seconds, stop the
engine and determine the cause. Normal
engine oil pressure is (3.45 bar + 1.03 bar)
(50 + 15 psi) at rated full load speed
(1800  2500 rpm) with oil at normal operating
temperature of 105° C (221° F).
2. Watch coolant temperature gauge. Do not
place engine under full load until it is properly
WARNING
WARNING
WARNING