OMN401512

Every Year

Clean Fuel Tank Vent

N75232-UN-09JUN08
A - Fuel Tank Vent
Disassemble fuel tank vent (A).

Clean screen and reassemble vent.

Clean Hydraulic Reservoir Breather

N84352-UN-16APR09
A - Breather
Open door on hydraulic power module.

Clean around breather (A) located on top of the hydraulic reservoir.

Clean Battery Connections

N87134-UN-21OCT09
A - Negative Cables
B - Positive Cables
Disconnect negative cables (A) from batteries.

Disconnect positive cables from batteries.
Remove as much visible corrosion as possible using a wire bristled brush.
Clean remaining corrosion from battery terminals and cable clamps using a brush and a solution of baking soda and water.
Flush batteries and terminals with clean water. Wipe batteries dry with a rag.
Connect positive cables to batteries.
Connect negative cables to batteries.

Test Coolant Condition

TS281
TS281-UN-23AUG88

CAUTION: Explosive release of fluid from pressurized cooling system can cause serious burns.

DO NOT remove surge tank cap when engine is hot. Shut off engine and wait until cap is cool enough to touch with bare hands. Slowly loosen cap to relieve pressure before removing.

Under certain conditions, coolant conditioner can cause serious injury or death. Never inhale or ingest conditioner and avoid contact with skin and eyes. When adding coolant conditioner, observe all precautions listed on container.

Maintaining adequate concentrations of glycol and inhibiting additives in the coolant is critical to protect the engine and cooling system against freezing, corrosion, and cylinder liner erosion and pitting.

Test coolant condition using test strips designed for use with the coolant used in your machine. (See TESTING DIESEL ENGINE COOLANT in Fuels, Lubricants, and Coolants section.)

Coolant test strips are available from your John Deere dealer.

Check Drive Belt Alignment and Tension

TS285
TS285-UN-23AUG88

CAUTION: Shut off engine and remove key before making belt adjustments.

Check the following belts for abnormal wear, stretching, and proper alignment. Adjust tension as necessary.

NOTE: Engine fan and accessory drive belt is automatically tensioned and cannot be manually adjusted. Check belt for proper alignment and signs of wear only.

Engine Fan and Accessory Drive Belt—See REPLACING ENGINE FAN AND ACCESSORY DRIVE BELT in Engine and Drive Train section.
Rotary Screen Drive Belt—See REPLACING ROTARY SCREEN DRIVE BELT in Engine and Drive Train section.
Cotton Fan Belts—See ADJUSTING COTTON FAN BELTS in Air System section.
Solution Pump Belt—See ADJUSTING SOLUTION PUMP BELT in Moistener System section.
Lower Feeder Belt—See ADJUSTING LOWER FEEDER BELT TENSION AND CHECKING TRACKING in Round Module Builder section.
Wrap Floor Belts—See CHECKING AND ADJUSTING WRAP FLOOR BELT TENSION in Round Module Builder section.
Wrap Feeder Belts—See CHECKING AND ADJUSTING WRAP FEEDER BELT TENSION in Round Module Builder section.

Inspect Seat Belts

H47137
H47137-UN-25OCT95

Inspect seat belts and mounting hardware. If either of the seat belt systems show signs of cuts, fraying, extreme or unusual wear, discoloration, abrasion, or damage to the buckle or retractor, the entire seat belt must be replaced immediately. For your safety, replace the belt system only with replacement parts approved for your machine. (See your John Deere dealer.)

Replace Primary and Safety Air Cleaner Elements

IMPORTANT: When servicing air cleaner, shut OFF engine and remove key so dirt cannot be pulled into engine.

N75440-UN-21MAR07

N86582-UN-26OCT09

N75442-UN-12MAR07
A - Cover Latches
B - Primary Element
C - Safety Element
Release cover latches (A) and remove cover.

Remove primary element (B).
Remove safety element (C).
Wipe inside of cover and canister with clean cloth.
Install new elements and make sure that they are properly seated.
Install cover and retain with latches.
Check all connections in air intake system to be sure that they are tight.

Lubricate Brake Pedal Pivots

N75233
N75233-UN-28FEB07

A - Brake Pedal Pivots

Lubricate brake pedal pivots (A).

Clean and Refill Doffer Bearing Housings

CAUTION: Row units are heavy and if they fall, serious injury or death to you or others can result. Place safety stops over unit lift cylinder rods when working under units.

N57230-UN-15MAY01
A - Bearing Housing Flange
B - Adjusting Plate
Mark doffer bearing housing flange (A) and adjusting plate (B) so bearing housing can be installed in the same position. Remove three cap screws from bearing housing flange. DO NOT loosen outer cap screws retaining adjusting plate (B). If adjusting plate is moved, doffer column must be realigned.

Remove bearing housing. Remove grease fitting from bearing housing. Clean out grease and refill. (See GREASE in Fuels, Lubricants, and Coolants section.)
Replace bearing housing in same position as before, with grease fitting hole toward rear of machine. Replace grease fitting.

Lubricate Row Unit Idler Bearings

N57001-UN-30APR01
A - Plastic Plugs
Remove plastic plugs (A) on top of bearing housing.

Lubricate unit idler bearing fittings (2 each unit), with 2—3 shots from grease gun.
Install plugs.

Drain and Replace Row Unit Gear Case Oil

CAUTION: Row units are heavy. If row units fall, serious injury or death to you or others can result. Lower units to the ground or place safety stops over unit lift cylinder rods before working near units.

N60792-UN-09OCT02

N87225-UN-02NOV09

N87224-UN-02NOV09
A - Shield
B - Oil Drain Cup
C - Drain Plug
D - Fill Plug
E - Sight Glass
Remove shield (A) from right side of row unit.

Place oil drain cup (B), capable of holding 591 mL (20 oz.) of oil, underneath gear case output shaft.
NOTE: Drain plug is 4.5 mm hex socket head screw.
Remove drain plug (C) and fill plug (D). Drain oil into cup.
After oil is drained, install drain plug and remove oil drain cup. Wipe up any spilled oil.
Install shield on side of unit.
Verify that sight glass (E) is level and fill gear case with John Deere Hy-Gard™ JDM J20C oil until oil is visible in middle of sight glass.
NOTE: Allow oil to flow into lower cavity of gear case, then add oil as necessary to obtain proper level.
Install fill plug.

Drain and Replace Main Hydraulic Drive Gear Case Oil

N83898-UN-08APR09
A - Fill Plug
B - Drain Plug
Remove fill plug (A).

Remove drain plug (B) and drain gear case oil into suitable container.
Clean debris from magnetic tip of drain plug.
Install drain plug in gear case.
NOTE: Gear cases are shipped from the factory filled with Hy-Gard™ JDM J20C oil. Use only Hy-Gard oil when adding to, or refilling gear cases.
If row unit gear case is separated from motor or drive unit gear case, clean splines and liberally apply SD Polyurea grease.
Add oil until it reaches bottom of fill plug hole.
Install fill plug.