Kubota L3200 / L3800 service schedule
Kubota L series · check your handbook (operator's manual code TC425-1975-1, English edition)
Every maker's service job for the Kubota L3200 / L3800, counted in hours, with the oils, filters and parts each one needs. Add your tractor to Farmyard Workshop and it works out what's due from your hours and dates, and keeps the service history.
Track your L3200 / L3800 for freeVersions: L3200 (single clutch, 5.7 L engine oil); L3800 (dual clutch, 7.1 L engine oil)
Service intervals
| Job | When |
|---|---|
| Grease points | every 50 hours |
| Engine start safety switches check | every 50 hours |
| Wheel bolts and nuts torque check | every 50 hours |
| Air cleaner primary element clean | every 100 hours |
| Fuel filter clean | every 100 hours |
| Fan belt tension check | every 100 hours |
| Clutch and brake pedal free travel | every 100 hours |
| Battery condition check | every 100 hours |
| Fuel line check | every 100 hours |
| Toe-in and hose checks | every 200 hours or every 6 months |
| Engine oil and filter change | every 200 hours |
| Transmission fluid and hydraulic filter change | every 400 hours |
| Front axle case oil change | every 400 hours |
| Fuel filter element replace | every 400 hours |
| Front axle pivot adjust | every 600 hours |
| Engine valve clearance (dealer) | every 800 hours |
| Air cleaner elements replace | every year |
| Coolant flush and change | every 2 years |
Service jobs and parts
Grease points
Chassis · every 50 hours
Kubota lists the grease fittings at 50 hours. Grease more often in wet or muddy work.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| Grease | 1 | EP2 grease. Multipurpose NLGI-2 or NLGI-1 (GC-LB), until it overflows. Aztec Oils match: VOLCATEC LITHIUM EP 2 | check your handbook |
Step-by-step
- Stop the engine, take the key out, set the parking brake.
- Wipe each fitting and pump grease in until clean grease shows.
- Points in the handbook: front axle support (2), clutch pedal (1), brake pedal (1), pedal shaft (1), lift rod (1), tie rod ends (4). Smear grease on the two battery terminals.
- Wipe off the excess.
Tools: Grease gun, Rag
Engine start safety switches check
Electrical · every 50 hours
The handbook has a 50-hour test that the engine will not crank unless the range gear lever and PTO lever are in the right positions.
Step-by-step
- Set all levers neutral, park brake on, stop the engine.
- Sit on the seat, put the range lever in L, H or R, press the clutch right down, disengage the PTO and turn the key to start: the engine must not crank.
- Then engage the PTO lever, press the clutch, put the range lever in neutral and try to start: the engine must not crank.
- If it cranks in either test, do not use the tractor. Take it to a Kubota dealer.
Tools: None
Wheel bolts and nuts torque check
Chassis · every 50 hours
Kubota says check wheel bolts regularly, especially when the tractor or wheels are new.
Step-by-step
- Check every wheel bolt and nut with a torque wrench.
- Handbook figures are 137 N-m and 215 N-m (the page does not say which wheel each is for, check your handbook).
- Retighten any that are loose.
Tools: Torque wrench
Air cleaner primary element clean
Engine · every 100 hours
Kubota cleans the primary element every 100 hours and more often in dust. It is replaced yearly or after the sixth cleaning.
Step-by-step
- Remove the cover and primary element.
- Dry dust: blow air from the inside, turning the element. Oil or soot: soak in detergent for 15 minutes, wash several times, rinse and dry naturally.
- Check the inside against a light for damage.
- Do not touch the secondary (safety) element unless it is being replaced.
- Open the evacuator valve to clear dust. Refit the cover with the arrow upright.
Tools: Low-pressure air line (under 205 kPa), Rag
Fuel filter clean
Fuel · every 100 hours
The handbook cleans the filter bowl and element every 100 hours and replaces the element at 400 hours.
Step-by-step
- Do this in a clean place, with the tank less than half full.
- Unscrew the filter bowl and rinse it with kerosene. Rinse the element.
- Refit, keeping dirt out, then bleed the fuel system.
Tools: Kerosene, Clean tray
Fan belt tension check
Engine · every 100 hours
Kubota checks fan belt tension every 100 hours.
Step-by-step
- Stop the engine and take the key out.
- Press the belt with your thumb (68.6 N) mid-span: deflection should be 7 to 9 mm.
- If wrong, loosen the alternator bolts, lever the alternator out and retighten. Replace a damaged belt.
Tools: Spanner
Clutch and brake pedal free travel
Chassis · every 100 hours
Kubota adjusts both pedals every 100 hours.
Step-by-step
- Engine off, key out, wheels chocked, parking brake released.
- Clutch free travel should be 20 to 30 mm: adjust the clutch rod at the lock nut. On the L3800 dual clutch, first set the pedal play, then adjust the clutch bolts through the flywheel housing cover (0.9 to 1.0 mm clearance, 3 bolts).
- Brake free travel should be 15 to 20 mm: adjust the brake rod at the lock nut. Both brake pedals must be equal.
- Retighten the lock nuts.
Tools: Spanners, Rule
Battery condition check
Electrical · every 100 hours
Kubota checks the battery every 100 hours (once a year if you do under 100 hours a year).
Step-by-step
- Read the indicator: green is good, black needs charging, white needs a new battery.
- Check the terminals are tight and greased.
Tools: Voltmeter or hydrometer
Fuel line check
Fuel · every 100 hours
Fuel hoses and clamps are checked every 100 hours and replaced every 2 years by a dealer.
Step-by-step
- Check every fuel hose and clamp is tight and undamaged.
- Repair or replace anything worn. Bleed the system if a line was removed.
Tools: None
Toe-in and hose checks
Chassis · every 200 hours or every 6 months
Toe-in and the radiator hose, intake air line and power steering line are checked every 200 hours (radiator hoses also at 6 months).
Step-by-step
- Measure between the tyre beads at hub height, front and rear: the front distance should be 2 to 8 mm shorter. Adjust the tie rods if not.
- Check radiator hoses, intake air line and power steering line for swelling, cracks and loose clamps. Replace any that are hardened or cracked.
Tools: Tape measure, Spanners
Engine oil and filter change
Engine · every 200 hours
Kubota changes the oil and filter every 200 hours (halve it if you use diesel with over 0.5% sulphur). The handbook gives no month limit.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| Engine oil | 1 | 10W-30 or 15W-40, API CF or better. 5.7 L (L3200) / 7.1 L (L3800) with filter. Aztec Oils match: EMPROTEC EHPD 10W-30 | check your handbook |
| Engine oil filter | 1 | Genuine Kubota filter only. Part number not in the handbook: check your handbook or dealer | check your handbook |
Step-by-step
- Run the engine to warm it, stop it and let it cool a little.
- Remove the drain plug and drain all the oil.
- Refit the plug. Unscrew the old filter, oil the seal of the new one, screw on until it touches, then another half turn by hand.
- Fill to the upper notch on the dipstick, run for a minute, stop and recheck the level and for leaks.
Tools: Drain tray (10 L), Filter wrench, Rag
Transmission fluid and hydraulic filter change
Transmission · every 400 hours
Kubota changes the transmission and hydraulic fluid and the hydraulic filter every 400 hours.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| Transmission and hydraulic fluid | 1 | Kubota SUPER UDT-2 multigrade fluid, 27.5 L. Do not mix brands. Aztec Oils match: AGRITEC UTTO | check your handbook |
| Hydraulic oil filter | 1 | Genuine Kubota filter only. Part number not in the handbook: check your handbook or dealer | check your handbook |
Step-by-step
- Park level, engine off. Remove the drain plugs under the transmission case and drain all the oil.
- Refit the plugs. Remove the hydraulic filter and wipe metal filings off the magnetic filter.
- Oil the new filter seal, screw it on until it touches, then another half turn.
- Fill to the upper line of the gauge, run the engine for a few minutes, stop and top up.
- Run at medium speed a few minutes before working the tractor hard.
Tools: Drain tray (30 L), Filter wrench, Clean rag
Front axle case oil change
Axles · every 400 hours
Kubota changes the front axle case oil every 400 hours.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| Front axle oil | 1 | 80W-90 gear oil or Kubota SUPER UDT-2 fluid, 4.5 L. Aztec Oils match: TRANSMATEC EP-4 80W-90 | check your handbook |
Step-by-step
- Remove the right and left drain plugs and the filling plug and drain all the oil.
- Refit the drain plugs and pour in the new oil slowly.
- Run the tractor a few minutes, then remove the level check plug: oil should run out. Top up if not.
- Refit and tighten the plugs.
Tools: Drain tray, Spanners
Fuel filter element replace
Fuel · every 400 hours
Kubota replaces the fuel filter element every 400 hours.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| Fuel filter element | 1 | Genuine Kubota number as quoted by FridayParts kit listing for L3200/L3800; check against your serial number | 6A320-59930 |
Step-by-step
- Do this in a clean place with the tank under half full.
- Unscrew the bowl, fit the new element and O-ring, refit the bowl.
- Bleed the fuel system.
Tools: Clean tray
Front axle pivot adjust
Axles · every 600 hours
Kubota adjusts the front axle pivot every 600 hours to stop front wheel shimmy.
Step-by-step
- Loosen the lock nut, screw the adjusting screw in until seated, then another 1/6 turn.
- Retighten the lock nut.
Tools: Spanner
Engine valve clearance (dealer)
Engine · every 800 hours
Kubota lists valve clearance at 800 hours as a dealer job.
Step-by-step
- Book it with a Kubota dealer. The clearance figure is not in the operator's manual.
Tools: Dealer
Air cleaner elements replace
Engine · every year
Kubota replaces both air cleaner elements once a year, or the primary after the sixth cleaning.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| Air cleaner primary element | 1 | Kubota number per FridayParts kit listing (older number TA040-93230); check with your dealer | R1411-42270 |
| Air cleaner secondary element | 1 | Kubota number per FridayParts kit listing (older number TA040-93220); check with your dealer | R1411-42280 |
Step-by-step
- Remove the cover, primary and secondary elements.
- Fit new ones. Never oil a dry element.
- Refit the cover with the arrow upright.
Tools: Rag
Coolant flush and change
Cooling · every 2 years
Kubota flushes and changes the coolant every 2 years. Hoses and fuel, steering and intake lines are replaced at the same time by a dealer.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| Coolant | 1 | 50/50 ethylene glycol long-life coolant with soft water. 6.0 L radiator + 0.6 L recovery tank | check your handbook |
Step-by-step
- Engine cold. Open the drain plug and remove the radiator cap to drain it all.
- Refit the plug, flush with water and cooling system cleaner as the cleaner says.
- Fill with the 50/50 mix to just below the cap, then the recovery tank to FULL.
- Run a few minutes, let it cool and recheck the recovery tank.
Tools: Drain tray, Funnel
Oils, fluids and capacities
| System | Oil or spec | Capacity |
|---|---|---|
| Engine | Kubota diesel (L3200 / L3800) | |
| Engine oil | API CF or better. Above 25 C: SAE30, 10W-30 or 15W-40. -10 to 25 C: SAE20, 10W-30 or 15W-40. Below -10 C: 10W-30. If the diesel has over 0.5% sulphur, halve the oil and filter interval. | 5.7 L with filter (L3200), 7.1 L with filter (L3800) |
| Coolant | 6.0 L radiator plus 0.6 L recovery tank. 50/50 ethylene glycol long-life coolant and soft water. Change every 2 years. | |
| Valve clearances | Dealer job every 800 hours; the clearance figure is not in the operator's manual, check your handbook | |
| Engine oil | 10W-30 or 15W-40 (API CF or better) | 5.7 L (L3200) / 7.1 L (L3800) with filter |
| Transmission and hydraulics (shared) | Kubota SUPER UDT-2 fluid (multigrade, do not mix brands) | 27.5 L |
| Front axle case | Kubota SUPER UDT-2 fluid or SAE 80 to SAE 90 gear oil | 4.5 L |
| Coolant | 50/50 ethylene glycol long-life coolant and soft water | 6.0 L radiator + 0.6 L recovery tank |
| Fuel | No. 2-D diesel (No. 1-D below -10 C) | 38.0 L tank |
| Grease | EP2 grease. Multipurpose NLGI-2 or NLGI-1 (GC-LB) | Until grease overflows |
Specifications
| Fan belt deflection | 7 to 9 mm at 68.6 N (7 kgf) mid-span |
| Clutch pedal free travel | 20 to 30 mm |
| Brake pedal free travel | 15 to 20 mm |
| Toe-in | 2 to 8 mm |
| Wheel bolt torque | 137 N-m and 215 N-m are shown for the two wheel bolt sizes; the page does not say which is front or rear, check your handbook |
| Air cleaner | Dry double element: primary cleaned at 100 h, both elements replaced yearly |
Known problems
Clutch housing water
After rain, snow or a wash, push in the split pin plug under the clutch housing; if water comes out, drain it.
Repair guides
- Clutch pedal free travel and dual clutch adjustment (Kubota L3200 / L3800) (Moderate, 1 to 2 hours): Clutch slipping under load, dragging or grinding when changing gear, or the pedal travel feels too long or too short. The L3800 has a dual clutch (clutch and PTO plates) with its own clearance.
- Fuel filter bowl, bleeding the fuel system and draining the clutch housing (Kubota L3200 / L3800) (Easy, 30 to 45 minutes): Hard starting or stalling after the filter was cleaned or the tank ran low, water in the fuel, or the clutch dragging or rusting after rain, snow or a wash because water has got into the clutch housing.
- Fan belt, brake pedal travel, toe-in and wheel bolts (Kubota L3200 / L3800) (Moderate, 1 to 2 hours): Slipping belt, charging or overheating problems, brakes that need pulling too far or pull to one side, front tyre wear, or loose wheel bolts.
The full step-by-step guides are in Farmyard Workshop once you add your tractor.
Parts list with genuine part numbers
Kubota L3200 / L3800 - maker filter/service sheets and parts lists already cited on the site entry; serial splits are in the row notes
Engine service
| Part | Part number | Qty | Notes |
|---|---|---|---|
| Air cleaner primary element | R1411-42270 | 1 | Kubota number per FridayParts kit listing (older number TA040-93230); check with your dealer |
| Air cleaner secondary element | R1411-42280 | 1 | Kubota number per FridayParts kit listing (older number TA040-93220); check with your dealer |
Fuel
| Part | Part number | Qty | Notes |
|---|---|---|---|
| Fuel filter element | 6A320-59930 | 1 | Genuine Kubota number as quoted by FridayParts kit listing for L3200/L3800; check against your serial number |
Sources
- Kubota numbers for L3200/L3800 filter kit
- Kubota L3200 / L3800 operator's manual TC425-1975-1 (English): service interval chart, capacities, lubricants and procedures
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