________________________________________________________________________________
John Deere 3025E Engine and Driveline
John Deere 3025E Engine
Checking Engine Oil Level
Check engine oil when engine is cold. If engine is warm, allow to cool
for at least 5 minutes before checking oil. Check engine oil with
machine parked on a level surface. Remove dipstick, located at the right
side of the engine. Wipe with a clean cloth. Install dipstick. Remove
dipstick. If oil level is low: Raise hood. Remove right side panel.
Remove oil fill cap. Add recommended engine oil until level is within
operating range on dipstick. Do not overfill. Install dipstick. If oil
is above level on dipstick, drain to proper level. Install right side
panel. Lower hood.
Changing Engine Oil and Filter
Run engine to warm the oil. Place drain pan under oil drain plug located
on under side of engine. Remove drain plug. Wipe dirt from around oil
filter. Turn filter counterclockwise to remove. Put a light coat of
clean engine oil on gasket of new filter. Install replacement oil filter
by turning filter clockwise until gasket contacts filter base. Tighten
additional one half turn. Install drain plug. Do not overtighten. Remove
oil fill cap. Add approximately 4.5 L (1.2 gal.) engine oil. Install oil
fill cap. Start and run engine at idle to check for leaks. Stop engine.
Fix any leaks before operating. Check engine oil level. Add oil if
necessary.
Cleaning Dust Unloading Valve
Allow engine to cool. Access the engine compartment. Squeeze dust
unloading valve to clean. Remove and replace if damaged.
JD 3025E - Servicing Air Filter Elements
Allow engine to cool. Raise hood. Remove hold down strap. Tilt canister
up and release latches and remove air filter canister cover. Remove and
discard primary element. Clean out any dirt in canister, taking care not
to damage secondary filter element. Replace with a new primary filter
element. Install air filter canister cover with rubber dust unloading
valve pointing downward. Secure latches. Position canister back in place
and install hold down strap. Check instructions molded into canister
cover for proper installation. Lower hood.
Servicing Secondary Air Filter Element
Secondary element does not need routine replacement. Visually inspect it
without removing from canister. Do not attempt to clean secondary
element. If secondary element is replaced, install new primary and
secondary element immediately to prevent dust from entering air intake
system. Remove air filter canister cover. Remove and discard primary air
filter element. Remove and discard secondary air filter element. Replace
with a new secondary air filter element. Install new primary air filter
element. Replace air filter canister cover. Position canister back in
place and install strap. Lower hood.
Checking Air Filter Hose
Inspect air intake system hoses and connections each time the air filter
is changed, or at a minimum yearly. Raise hood. Visually inspect hose
for cracks and wear. Squeeze hose to check for deterioration. Hose
should not be hard and brittle, nor soft or swollen. Tighten upper and
lower clamps if necessary. Lower hood.
John Deere 3025E Cooling System
Checking Cooling System
Allow engine to cool. Raise hood. If engine is warm, coolant level
should be between the FULL line and the LOW line. If engine is cold,
coolant level should be at the LOW line on the recovery tank. Remove
recovery tank cap if needed to add coolant. Add recommended coolant.
Install recovery tank cap. Lower hood.
Draining Cooling System
Allow engine to cool. Raise hood. Slowly open radiator cap to the first
stop to release all pressure. Close radiator cap tightly. Position drain
pan under radiator. Remove lower radiator hose at radiator. Drain
coolant from engine: Locate engine block drain plug at right side of
engine, behind oil filter. Position drain pan under drain plug, remove
drain plug and allow all coolant to drain. When coolant drains from the
recovery tank, remove the radiator cap. Install lower radiator hose and
install engine block drain plug. Flush cooling system.
JD 3025E - Flushing Cooling System
Fill cooling system with clean water and JD Cooling System Cleaner, or
Cooling System Quick Flush or an equivalent. Follow directions on the
container. Install and tighten radiator cap. Start and run engine until
it reaches operating temperature. Stop engine. Remove lower radiator
hose and engine block drain plug. Drain cooling system immediately
before rust and dirt settle. Install radiator and engine block drain
plug.
Filling Cooling System
Do not operate engine with plain water. Allow radiator to cool. Fill
cooling system. Cooling system capacity is 3.7 L (3.9 qt). Install and
tighten radiator cap. Run engine until it reaches operating temperature.
Stop engine. Check recovery tank coolant level and add coolant if
necessary Lower hood.
Checking Radiator Hoses and Clamps
Raise hood. Remove right and left-hand side panels. Visually inspect
hoses for cracks and wear. Squeeze hoses to check for deterioration.
Hoses should not be hard and brittle, nor soft or swollen. Check upper
radiator hose for damage or cracking. Replace if necessary. Check hose
clamps as needed. Check lower radiator hose for damage or cracking.
Replace if necessary. Check hose clamps as needed. Install right and
left-hand side panels. Lower hood.
Cleaning Radiator Cooling Fins
Reduced air intake can cause overheating. Keep radiator cooling fins
clean. Do not use pressure washers to clean radiator cooling fins.
Reduce compressed air pressure to 210 kPa (2.1 bar) (30 psi) when
cleaning radiator and cooling fins. Spray compressed air straight into
radiator. Do not spray radiator on an angle or cooling fins can be bent.
Raise hood. Using compressed air or water, remove all dirt and debris
from fins at front and rear of the following: Radiator, including fan
shroud. Transmission oil cooler. Fuel cooler. Lower hood.
John Deere 3025E Alternator Belt
Checking Belt Tension
Equipment: JDG529 or JDST28 Belt Tension Gage. Raise hood. Remove left
side panel. Use belt tension gage or apply moderate thumb pressure to
belt halfway between the pulleys. Adjust belt tension if not within
specifications. Belt Tension Force - 75 LB (or 334 N). Belt Deflection
Inward Pressure - 9 mm (3/8 in.).
Adjusting Belt Tension
Loosen adjusting bolt and pivot bolt. Apply outward pressure to
alternator housing until tension is correct. Tighten bolts. Check belt
tension. Install left side panel. Lower hood.
Replacing Belt
Replace alternator belt if excessive wear, damage, or stretching is
detected. Remove left side panel. Loosen adjusting bolt and pivot bolt.
Apply inward pressure to alternator housing. Remove belt from alternator
pulley, fan pulley, and crankshaft pulley. Route belt over fan and
remove. Install new belt over fan and onto pulleys. Apply outward
pressure to alternator housing until tension is correct. Tighten bolts.
Check belt tension. Adjust as necessary. Install left side panel. Lower
hood.
JD 3025E - Fuel Filter Sediment Bowl and
Replacing Filter
Checking Sediment Bowl
Check fuel sediment bowl. If water and deposits are detected, drain
water. Place drain pan under sediment bowl. Turn drain cock to open
position. Drain water until the orange indicator ring re-seats back on
the bottom of bowl. Turn drain cock to closed position.
Cleaning Sediment Bowl and Replacing Fuel
Filter
Move the fuel shutoff valve to closed position. Position drain pan under
fuel filter sediment bowl. Turn sediment bowl counterclockwise to
remove. Clean the filter screen and bowl. Install sediment bowl. Open
fuel shutoff valve. Fuel system is self bleeding. Turn key to the ON
position for 10-15 seconds before attempting to start, electric pump
purges air from sediment bowl.
Replacing Fuel Filter
Change filter when fuel level is low. Close fuel shutoff valve. Position
drain pan under fuel filter to catch fuel spillage. Turn filter
counterclockwise to remove and discard. Apply fuel to surface of new
filter gasket. Install new filter to filter head. Tighten to one
complete turn after filter contacts head. Open fuel shutoff valve.
John Deere 3025E - Starting Engine
Apply park brake. Move the transmission range shift lever to the N
position. Make sure PTO engagement switch is in disengaged/off position.
Remove foot from forward and reverse travel pedals. Lower any front
mounted implement to the ground using the SCV lever (if equipped). Set
engine speed control lever to the 1/2-3/4 fast position. Turn ignition
key switch to the run position. Check instrument panel indicator lights:
Alternator/battery discharging light illuminates. Engine oil pressure
light illuminates. Turn key to start position to start engine.
Release key after engine has started. If engine does not start, cycle
the key back to the off position and restart the procedure. Check
indicator lights: Engine oil pressure light goes out within 5 seconds.
If indicator light does not go out after 10 seconds, set engine speed at
full throttle. Battery charging light should go out within 10 seconds.
If indicator lights stay on longer than the given time interval, stop
engine and check for cause. Set engine speed control lever to the 1/2
fast position for 1 minute without load.
Cold Weather Starting
Apply park brake. Move the transmission range shift lever to the N
position. Turn ignition key switch to the run position. When glow plug
icon light turns off, then turn key to start position. Starter may be
damaged if starter is operated for more than 20 seconds at a time: Wait
two minutes before trying again if engine does not start. Release key
when engine starts. Check instrument panel indicator lights: Engine oil
pressure light should go out within 5 seconds. Alternator/battery
discharging light should go out within 10 seconds.
If indicator light remains on after 10 seconds, set engine speed to full
throttle. If indicator light continues to stay on, stop the engine and
check for cause. It is normal for the engine to be louder and for
blue-white exhaust smoke to be present during engine warmup. The amount
of exhaust smoke depends on air temperature. Warm the engine: In warm
weather, set engine speed control lever to the 1/2 fast position for 1
minute without load. In cold weather, set engine speed control knob to
the 1/2 fast position for 5 minutes without load.
JD 3025E - Idling Engine
Adjust engine speed control lever to set engine at low idle. Apply park
brake.
Starting a Stalled Engine
Disengage PTO. Remove foot from forward and reverse travel pedals. Move
transmission range shift lever to neutral (N). Start engine. Continue
with normal operation, or set engine at low idle for 2 minutes before
stopping engine.
John Deere 3025E Transmission
Checking Transmission Oil Level
Dirt and contamination can enter transmission when checking oil level.
Clean area around dipstick before removing. Pull to remove dipstick,
located at left side of transaxle. Wipe with a clean cloth. Install
dipstick. Remove dipstick. Check oil level on dipstick. Correct oil
level is between levels on dipstick. Do not overfill transmission. Oil
expands during operation and could overflow. If oil level is low: Remove
filler cap. Add recommended oil through fill opening until oil level is
correct. If oil is exceeds top mark on the dipstick, drain to proper
level. Install dipstick. Install and tighten filler cap.
Changing Transmission Oil and Hydraulic
Suction Oil Filter
Drive tractor a few minutes to warm and mix transmission oil. Park
machine safely. Position drain pan under transmission drain plug at rear
cover, suction filter assembly, and spin-on pressure filter at left side
of transmission. Remove plug and allow oil to drain. Remove suction
filter and allow oil to drain. Remove HST filter and allow oil to drain.
Install transmission drain plug. Replace both filters. Remove oil fill
cap. Add recommended oil into filler opening. Start engine. Check for
oil leaks around filter bases and drain plugs. Stop engine. Check
transmission oil level. Add oil if necessary.
John Deere 3025E Front Axle
Checking Front Axle Oil Level
Allow oil one hour to settle before checking level to ensure accurate
dipstick reading. Repeat oil level check after several hours of
operation. Allow machine to cool down for at least 1 hour. Dirt and
debris in oil damages the transaxle. Clean area around opening before
removing dipstick. Loosen and remove dipstick located on right side of
front axle. Wipe dipstick clean with a rag. Install and tighten
dipstick. Remove dipstick. Correct oil level is between high and low
levels on dipstick. If oil level is low: Add recommended oil through
dipstick fill opening until oil level is correct. Install and tighten
dipstick. Check front axle oil level again after the first several hours
of operation.
Changing Front Axle Oil
Operate machine to warm front axle oil. Position drain pan under
differential drain plug. Remove differential drain plug and allow oil to
drain. Position drain pan under each front axle drain plug. Remove both
drain plugs and allow oil to drain. Install and tighten both drain plugs
after all oil has drained. Remove dipstick located on right side of
front axle. Add recommended oil through dipstick fill opening until oil
level is correct. Install and tighten dipstick. Drive tractor 1 minute
at low speed, in both forward and reverse to help fill wheel ends. Check
front axle oil level.
Adjusting Front Axle Thrust Bolt Torque
Adjust bolt torque at required service interval to prevent excessive
forward or rearward movement of front axle. Raise front axle off ground
to take machine weight off the front axle. Loosen nut. Tighten thrust
bolt. Thrust Bolt Torque - 14 Nm (10 lb-ft.). Do not overtighten.
Oscillate axle from stop ti stop. Check torque. Tighten back nut. Lower
front axle back to ground.
John Deere 3025E - MFWD Checking
Checking and Adjusting Toe-In
Stop machine on a firm, level surface. Disengage MFWD if equipped. Turn
steering wheel so front wheels are pointing straight ahead.
Checking Toe-In
If front axle is equipped with bar tires, use either an outside or
inside bar of each tire for marking the center line. Mark the center
line of each tire at hub height and to the front of the axle using
chalk. Measure and record distance between center lines of each tire.
Drive machine forward or rearward slightly until chalk mark moves 180°
to rear of axle. Measure and record distance again between the chalk
marks. Determine the difference between front and rear measurements.
Difference between measured distance not to exceed 3 mm (1/8 in.).
Adjust toe-in if necessary.
Adjusting Toe-In
Loosen nuts on both ball joints. Rotate tie rod clockwise or
counterclockwise to adjust the amount of toe-in. Adjust tie rod until
toe-in measurement is within correct specification. Rotating threaded
rod in 1/2 turn increments equals 1.5 mm (1/16 in.). Tighten nuts to 120
Nm (88 lb.-ft.). Check toe-in setting. Repeat procedure if further
adjustment is required.
________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________