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John Deere 185 Tractor Troubleshooting

John Deere 185 Engine Troubleshooting

Engine won't start

No fuel in fuel tank - Add gasoline.
Improper fuel grade - Change gasoline.
Old gasoline - Drain fuel and add fresh.
Clogged fuel system - Remove clogging.
Defective spark plug wires - Inspect and replace if required.
Faulty spark plug - Change as required.
Dirty fuel filter - Fuel filter needs changing.
Faulty safety switch - Change damaged switch.
Incorrect carburetor adjustment - Adjust carburetor idle mixture screw.
Inspect and adjust throttle cable. Check and adjust valve clearance.

Gas engine hard starting

Spark plug malfunction - Check the spark and change defective spark.
Problems with carburetor adjustment - Adjust as required.
Fuel pipes are clogged - Service required.
Throttle cable worn - Install new throttle cable.
Stale or improper fuel - Fill in proper fuel.
Loose or corroded electrical connections - Inspect and replace wiring as needed.
Starter problems - Inspect the starter and change defective parts.

Engine runs unevenly

Clogged cooling fins - Clean and wash cooling fins.
Electrical connections damaged - Inspect and restore defective contacts.
Ignition setting defective - Check ignition and adjust if necessary.
Throttle cable sticking - Check and repair.
Air cleaner dirty - Clean or replace the air filter.

JD 185 Engine misses

Spark plug fail - Change spark plug.
Carburetor defective or not adjusted - Repair or adjust.
Ignition coil not working - Replace defective component.

Engine overheats

Engine overloaded - Reduce the load.
Air intake screen clogged - Clean clogged components.
Engine oil low or too high - Add or drain oil.
Incorrect engine oil viscosity - Change engine oil.
Check internal bearing clearance.
Too Fast idle - Adjusting fast idle speed.

Engine does not idle

Spark plug is loose - Adjust spark plug gap.
Faulty spark plug - Check the spark and change defective spark.

Engine knocking

Stale or low octane fuel - Use proper fuel.
Engine overloaded - Reduce loads.
Low oil level - Check oil level and add if necessary.
Engine speed too low - Adjust the speed.
Cylinder bore and rings worn out - Replace defective components.
Inspect for engine overheats from clogged cooling fins.
Check and adjust valve clearance.
Check for worn crankshaft or camshaft bearings.

John Deere 185 Engine back-fire

Inspect spark plug and change if required.
Adjust or replace choke.
Checking and adjusting carburetor.
Inspect and adjust ignition coil air gap.
Check inlet and outlet valves.
Check valve clearance, adjust if required.
Check flywheel key.

Insufficient engine power

Engine overheating - Clogged air filter element.
Excess engine oil - Drain excess oil.
Fuel pump is not working properly - Repair or replace fuel pump.
Governor problems - Checking and adjusting governor.
Check carburetor float adjustment.
Checking engine compression.

Excessive Fuel Consumption

Throttle does not open well - Check choke cable.
Carburetor malfunction - Adjust or repair carburetor.

Exhaust with black smoke

Air filter is dirty or oil soaked - Clean or replace filter.
Throttle not fully engaged - Check and repair throttle.
Checking and adjusting carburetor float level.

JD 185 Electrical System Troubleshooting

Starter does not run

Blown fuse - Check and change.
Terminals are severely corroded and heat up - Clean terminals.
Low-voltage battery - Charge the battery.
Ignition switch is damaged - Change switch.
Faulty starter - Repair or replace.
Wires disconnected - Replace electric wires.

Battery doesn't charge

Battery cells defective - Change the battery.
No contact between cable and battery terminal - Replace or clean cable.

Lights do not work

Connection/disconnection level in wrong position.
Check lamps.
Short circuit in electrical wires.

John Deere 185 Machine Problems

The machine vibrates

Implements drive belts damaged or worn - Check and change worn belt.
Worn traction drive belt - Check and change worn belt.
Drive sheaves malfunction - Change if necessary.
Unbalancing or bending of blades - Replace damaged blades.

Machine does not move while engine is running

Parking brake is applied - Unlock park brake.
Bypass valve lever in the push position - Disengage the bypass valve lever.
Blades loose - Inspect and fasten securely if necessary.
Incorrect blade balance - Check blade balancing.
Transmission oil is insufficient - Add oil to the transmission.

John Deere 185 Lawn Mower Problems

Clogged discharge chute

Traveling too fast - Use slower speed.
Grass too long - try operating a short cutting height.
The grass is wet - Don't mow while wet grass.
Engine runs at low revs - The choke is not fully opening.
Restricted air flow - Check engine speed.
Low cutting height - Change cutting height.
Improper belt installation - Install the belt correctly.

Uncut grass during operation

Mower's cutting deck is clogged - Mower deck needs cleaning.
Blade wornout - Installing new blade.
Deck level is too low - Checking and adjust deck height.
Grass bag too full - Clean grass bag.
Traveling too fast - Use slower speed.

Slipping drive belt

Debris in sheaves - Check and clean.
Belt is loose - Fit new belt.
Belt tension improper - Belt tension needs to be adjusted.

Excessive mower vibration

Mower deck clogged or in sheaves - Remove clogging from sheaves or mower deck.
Damaged sheaves or belt - Install new components.
Belt or pulleys no adjustment - Check and centering.
Blades out of balance - Adjust blade balance.

Blades scalp grass

Cutting height too low - adjust cutting height.
Mower rollers not adjusted improperly - Adjust mower deck wheels.
Insufficient tire pressure - Check and inflate the tires.
Higher blade speed - Adjust the speed of blades.
Bent mower blades - Replace blades.

Uneven Cut

Mower deck not level - Deck leveling required.
Tire pressure unequal - Tire pressure required.
Wrong wheel position - Check the rollers heights.
Traveling too fast - Choose recommended speed.
Blades worn - Sharpen the blade or install a new one.

JOHN DEERE TRACTORS ATTACHMENTS
420	430	455	790	990
X300	X320	X330	X350	X475
X485	X500	X540	X570	X590
X700	X720	X738	X758	1023E
2025R	2210	2520	3025E	3032E
3038E	3038R	3039R	3046R	3203
3320	3520	4052R	4066R	4100
4105	4115	4200	4310	4320
4400	4410	4520	4600	4720

JD TRACTORS TROUBLESHOOTING
2640	3040	3310	3650	4100
5050D	5090R	5410	6105R	7200R
E130	L111	LA110	LT155	X300R