McCormick MTX120, MTX135, MTX145, MTX150 service schedule

McCormick MTX · 2006–2019 (MTU-series manual first issued 2006; Tier 3 engines from 2009; MTX145 2009–2019 per TractorData)

Covers the McCormick MTX120, MTX135, MTX145, MTX150 (MTU series, B-Power engine).

Every maker's service job for the McCormick MTX120, MTX135, MTX145, MTX150, 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 MTX120, MTX135, MTX145, MTX150 for free

Versions: Powershift transmission (16 forward, 12 reverse); Auto Speed transmission (16 forward, 14 reverse); MFD front axle; Independent front suspension axle

Service intervals

Job	When
Grease front axle and linkage	every 50 hours
Engine oil and filter change	every 500 hours or every 6 months
Fuel filters (main filter and separator)	every 500 hours or every 6 months
Front PTO oil change and filter clean (if fitted)	every 500 hours or every 6 months
Transmission and hydraulic oil filter	every 500 hours
Transmission and hydraulic oil change (with filter and strainer)	every 1,000 hours or every year
Front axle differential and planetary oil change	every 1,000 hours or every year
Engine air filter service	every 1,000 hours or every year
Valve clearances and injectors (dealer)	every 1,000 hours or every year
Coolant change	every 2,000 hours or every 2 years

Service jobs and parts

Grease front axle and linkage

Greasing · every 50 hours

The 50-hour chart greases the front axle points; the 100-hour chart the linkage. Grease daily in severe conditions.

Part	Qty	Notes	Part number
Grease	1	EP2 lithium grease. McCormick Multi-Purpose Lithium Grease. Aztec Oils match: VOLCATEC LITHIUM EP 2	check your handbook

Step-by-step

2WD axle: pivot pin (1), track rod ends (2), steering cylinder trunnion (2), cylinder ball joint (1), hub bearings (2), axle swivels (2).
MFD or suspension axle: pivot pins and steering knuckle swivel pins, suspension arms.
Every 100 hours: rear and front three-point linkage (turnbuckles, top link, lift cylinders). Every 250 hours: auto hitch latches and trailer hitch clevis.

Tools: Grease gun

Engine oil and filter change

Engine · every 500 hours or every 6 months

The maker lists the engine oil and filter every 500 hours or six months. The handbook says to change sooner in difficult conditions, so use the hard-use setting for dusty or heavy work.

Part	Qty	Notes	Part number
Engine oil	1	15W-40. API CH-4 (McCormick Agrolube Solea LD), ≈16.0 L. Aztec Oils match: EMPROTEC SHPD-X 15W-40	check your handbook
Engine oil filter	1	Genuine McCormick spin-on, listed for MTX120 to MTX185 and XTX145 to XTX200 (Eco version TL3689066M2)	3689066M2

Step-by-step

Warm the engine, park level, stop it.
Drain the sump from the plug and remove the filter with a strap wrench.
Oil the new filter seal, fit by hand until it touches, then another half turn. Do not use a wrench to tighten.
Fit the drain plug with a new seal and refill to the dipstick mark.

Tools: Drain tray (20 L), Strap filter wrench

Fuel filters (main filter and separator)

Fuel · every 500 hours or every 6 months

The maker lists the engine fuel filter and the fuel/water separator element every 500 hours or six months. Do not fill new filters with fuel before fitting.

Part	Qty	Notes	Part number
Fuel filter	1	Genuine McCormick, listed for MTX120 to MTX200. Also sold as Fleetguard FF5580, Donaldson P550774. Tier 3 engines may differ, so check by serial number	705137A1
Fuel/water separator element	1	Genuine McCormick number per Sparex S.109188 (Fleetguard FS19988); Sparex lists MTX150. Other MTX models may differ: check your serial number	702704A1

Step-by-step

Clean around the filter heads. Drain water from the bottom plug and unplug the water-in-fuel sensor.
Remove the filters, oil the new gaskets and fit by hand, half a turn after contact.
Reconnect the sensor, fill the tank and prime the system. Do not crank the engine until the air is out.

Tools: Filter wrench, Drain tray

Front PTO oil change and filter clean (if fitted)

Driveline · every 500 hours or every 6 months

The maker lists the front PTO oil every 500 hours (first change after 20 hours). Clean its oil filter at the same time.

Part	Qty	Notes	Part number
Front PTO oil	1	Grade not stated (Agrolube Alcor IID), ≈2.75 L, check your handbook	check your handbook

Step-by-step

Park level, remove the hose and drain the oil warm.
Remove the circlip and bolt, take off the pump cover and clean the oil filter.
Refit, then fill through the level plug until oil reaches its bottom edge. Wait 5 minutes and recheck.

Tools: Drain tray

Transmission and hydraulic oil filter

Hydraulics · every 500 hours

The maker's chart lists the transmission/hydraulic oil filter every 500 hours as well as at the 1,000-hour oil change.

Part	Qty	Notes	Part number
Transmission/hydraulic oil filter	1	Genuine McCormick, listed for MTX110 to MTX150 (2002–2007). Check your serial number for later Tier 3 tractors	704385A1

Step-by-step

Put a tray under the filter and unscrew it.
Oil the new O-ring, fit the filter by hand and tighten a further third of a turn. Do not use a wrench.
Run the engine, check for leaks and the dipstick.

Tools: Filter wrench, Drain tray

Transmission and hydraulic oil change (with filter and strainer)

Hydraulics · every 1,000 hours or every year

The maker lists the transmission and hydraulic oil, filter, strainer and breather at 1,000 hours or yearly. Change the filter every time. The filter is also changed at 500 hours.

Part	Qty	Notes	Part number
Transmission/hydraulic oil	1	UTTO tractor transmission oil. McCormick/Agrolube HTX or HTU, ≈75 L (+12 L overfill)	check your handbook
Transmission/hydraulic oil filter	1	Genuine McCormick, listed for MTX110 to MTX150 (2002–2007). Check your serial number for later Tier 3 tractors	704385A1
Oil strainer and breather	1	Check your handbook or dealer for the numbers	check your handbook

Step-by-step

Park on hard level ground, brake on, engine off. Remove all the drain plugs (one under the PTO housing is hidden by the drawbar or hitch bracket).
Change the filter, then the strainer on the right of the range transmission housing, and fit a new breather.
Refill to the dipstick, run the engine and recheck for leaks.

Tools: Drain tray (90 L), Filter wrench

Front axle differential and planetary oil change

Axles · every 1,000 hours or every year

Listed with the 1,000-hour service, with the first change at 250 hours.

Part	Qty	Notes	Part number
Axle differential oil	1	85W-140. Gear oil API GL-5 / MIL-L-2105D (McCormick Agrolube Carina), ≈6 L (MFD), ≈2.2 L (suspension axle). Aztec Oils match: TRANSMATEC EP-5 85W-140	check your handbook
Braked axle planetary oil (if braked)	2	Agrolube Carina LS 90 limited slip gear oil (grade not stated in the maker's text; check your handbook), ≈2.0 L each	check your handbook

Step-by-step

Drain the differential from the plug at the rear bottom and refill through the level plug to the hole edge.
Turn each hub so the plug is at the bottom, drain, turn to 3 or 9 o'clock and fill to the hole. Wait 5 minutes and recheck.

Tools: Drain tray, Socket set

Engine air filter service

Engine · every 1,000 hours or every year

The maker lists the air intake system, primary and secondary elements at 1,000 hours. Clean the primary element when the restriction lamp lights. Never clean the secondary one.

Part	Qty	Notes	Part number
Air filter, primary element	1	Genuine McCormick/Case IH number per Sparex S.73147 (MF 4271467M1); Sparex lists MTX150. Other MTX models use different elements: check your serial number	433893A1
Air filter, secondary element	1	Genuine McCormick number per Sparex S.73148 (MF 4271468M1); Sparex lists MTX150. Check your serial number	701603A1

Step-by-step

Release the cover clips and pull out the primary element.
Clean with dry compressed air and look through it with a lamp.
Renew the secondary if dirty, check hoses and clamps.

Tools: Compressed air line

Valve clearances and injectors (dealer)

Engine · every 1,000 hours or every year

The maker lists engine valve clearances and a fuel injector check every 1,000 hours. The handbook gives no figures; the dealer does them.

Step-by-step

Book the dealer. Injectors are not cleaned; they are replaced if there is a fault.

Tools: Dealer or workshop manual

Coolant change

Cooling · every 2,000 hours or every 2 years

The maker lists a coolant change and fuel system service every 2,000 hours or two years. Check antifreeze yearly before winter.

Part	Qty	Notes	Part number
Coolant	1	McCormick Universal Anti-Freeze, 33% to 50% ethylene glycol (low silicate), ≈28.5 L	check your handbook

Step-by-step

Drain through the radiator valve and block drain plug.
Flush with radiator cleaner then clean water.
Refill with the glycol mix, run at low idle about 10 minutes and top up.

Tools: Drain tray, Radiator cleaner

Oils, fluids and capacities

System	Oil or spec	Capacity
Engine	McCormick B-Power 6.7 L six-cylinder turbo diesel: MTX120 117 hp (86 kW), MTX135 126.5 hp (93 kW), MTX145 and MTX135 New 133 hp (98 kW), MTX150 New 141.4 hp (104 kW)
Engine oil	15W-40, API CH-4 (McCormick Agrolube Solea LD). The handbook also gives 20W-50 for tropical use and 10W-30 or 5W-30 for winter.	≈16.0 L
Coolant	McCormick Agrolube Mureu Universal Anti-Freeze, 33% to 50% ethylene glycol. ≈28.5 L
Valve clearances	Not given in the operator's manual. Dealer check every 1,000 hours.
Transmission and hydraulics (shared)	UTTO tractor transmission oil. Agrolube Vela HTU (MF 1145, Landini I-ENG-D-302)	≈75 L, plus ≈12 L overfill for external hydraulics
Front axle differential (MFD or suspension axle)	85W-140 gear oil. API GL-5 / MIL-L-2105D (Agrolube Carina). The specification table elsewhere in the handbook gives Carina 80W-90 (see watch notes)	≈6 L (MFD), ≈2.2 L (suspension axle)
Axle planetaries, non-braked (each)	As the differential	≈0.6 L (MTX120/135), ≈0.7 L (MTX145/150)
Axle planetaries, braked (each)	Agrolube Carina LS 90 limited slip	≈2.0 L
Front PTO (if fitted)	Agrolube Alcor IID (grade not stated; check your handbook)	≈2.75 L
Grease points	EP2 grease. Agrolube Gena Grease EP	per nipple
Fuel tank	Diesel	≈265 L

Specifications


Engine speeds	Rated 2,200 rpm; high idle 2,350 rpm; low idle 800 rpm
Front axle ratio	MFD 1:1.32, suspension axle 1:1.31
Remote hydraulic pump	109 L/min at 2,200 rpm, 206 bar
Radiator cap	1 bar (14.5 psi)
Thermostat	Starts to open about 83 °C, fully open 95 °C

Known problems

Manual codes

The handbook calls these tractors MTU120, MTU135, MTU145 and MTU135/150 New. They are the McCormick MTX120 to MTX150.

Axle oil grade

One table in the handbook says Carina 85W-140 GL-5 and the specification chart says Carina 80W-90 GL-5. Check your handbook or dealer before filling.

Parts list with genuine part numbers

Maker part numbers per site service schedule: MTX120, MTX135, MTX145, MTX150 (MTU series, B-Power engine) (2006–2019 (MTU-series manual first issued 2006; Tier 3 engines from 2009; MTX145 2009–2019 per TractorData)); check serial range

Engine service

Part	Part number	Qty	Notes
Engine oil filter	3689066M2	1	Genuine McCormick spin-on, listed for MTX120 to MTX185 and XTX145 to XTX200 (Eco version TL3689066M2)
Air filter, primary element	433893A1	1	Genuine McCormick/Case IH number per Sparex S.73147 (MF 4271467M1); Sparex lists MTX150. Other MTX models use different elements: check your serial number
Air filter, secondary element	701603A1	1	Genuine McCormick number per Sparex S.73148 (MF 4271468M1); Sparex lists MTX150. Check your serial number

Fuel

Part	Part number	Qty	Notes
Fuel filter	705137A1	1	Genuine McCormick, listed for MTX120 to MTX200. Also sold as Fleetguard FF5580, Donaldson P550774. Tier 3 engines may differ, so check by serial number
Fuel/water separator element	702704A1	1	Genuine McCormick number per Sparex S.109188 (Fleetguard FS19988); Sparex lists MTX150. Other MTX models may differ: check your serial number

Transmission and hydraulics

Part	Part number	Qty	Notes
Transmission/hydraulic oil filter	704385A1	1	Genuine McCormick, listed for MTX110 to MTX150 (2002–2007). Check your serial number for later Tier 3 tractors

Sources

Open Farmyard Workshop